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Selection: with tag bioclimatic-predictors [53 articles] 

 

A multiscalar drought index sensitive to global warming: the standardized precipitation evapotranspiration index

  
Journal of Climate In Journal of Climate, Vol. 23, No. 7. (19 November 2009), pp. 1696-1718, https://doi.org/10.1175/2009jcli2909.1

Abstract

The authors propose a new climatic drought index: the standardized precipitation evapotranspiration index (SPEI). The SPEI is based on precipitation and temperature data, and it has the advantage of combining multiscalar character with the capacity to include the effects of temperature variability on drought assessment. The procedure to calculate the index is detailed and involves a climatic water balance, the accumulation of deficit/surplus at different time scales, and adjustment to a log-logistic probability distribution. Mathematically, the SPEI is similar to the ...

 

Why input matters: selection of climate data sets for modelling the potential distribution of a treeline species in the Himalayan region

  
Ecological Modelling, Vol. 359 (2017), pp. 92-102

Abstract

[Highlights] [::] Generalized Linear Models were used to model the potential distribution of Betula utilis in the Himalayan region. [::] Evaluation of predictive ability between climate data sets derived from different statistical methods. [::] Comparison of ‘interpolated’ (i.e. WORLDCLIM) and ‘quasi-mechanistical statistical downscaling’ (i.e. CHELSA) climate data. [::] Models based CHELSA climate data had higher predictive power, WORLDCLIM consistently overpredicted the potential habitat. [::] Unmindful usage of climatic variables for environmental niche models may potentially cause misleading projections. [Abstract] Betula utilis is a major constituent of alpine treeline ...

 

Modelling the potential distribution of Betula utilis in the Himalaya

  
Global Ecology and Conservation, Vol. 11 (July 2017), pp. 69-83, https://doi.org/10.1016/j.gecco.2017.04.003

Abstract

[Highlights] [::] We modelled for the first time potential distribution of Betula utilis in the Himalayan mountains on a broad scale. [::] Two temperature and three precipitation variables are useful for predicting the current potential distribution of B. utilis. [::] We applied Generalized Linear Models and evaluated model performance using a multi-faceted approach. [::] Comparison between the current predictions and the distribution range decribed in the vegetation map of Schweinfurth (1957). [::] New starting point for modelling treeline dynamics and treeline shifts in the Himalaya under ...

 

New temperature-based models for predicting global solar radiation

  
Applied Energy, Vol. 179 (October 2016), pp. 437-450, https://doi.org/10.1016/j.apenergy.2016.07.006

Abstract

[Highlights] [::] New temperature-based models for estimating solar radiation are investigated. [::] The models are validated against 20-years measured data of global solar radiation. [::] The new temperature-based model shows the best performance for coastal sites. [::] The new temperature-based model is more accurate than the sunshine-based models. [::] The new model is highly applicable with weather temperature forecast techniques. [Abstract] This study presents new ambient-temperature-based models for estimating global solar radiation as alternatives to the widely used sunshine-based models owing to the unavailability of sunshine data at ...

 

Concluding remarks

  
Cold Spring Harbor Symposia on Quantitative Biology, Vol. 22 (01 January 1957), pp. 415-427, https://doi.org/10.1101/sqb.1957.022.01.039

Abstract

This concluding survey of the problems considered in the Symposium naturally falls into three sections. In the first brief section certain of the areas in which there is considerable difference in outlook are discussed with a view to ascertaining the nature of the differences in the points of view of workers in different parts of the field; no aspect of the Symposium has been more important than the reduction of areas of dispute. In the second section a rather detailed analysis ...

 

Robust modelling of the impacts of climate change on the habitat suitability of forest tree species

  
Keywords: abies-alba   array-of-factors   artificial-neural-networks   bioclimatic-predictors   change-factor   climate-change   data-uncertainty   diversity   environmental-modelling   europe   extrapolation-uncertainty   featured-publication   forest-resources   free-scientific-knowledge   free-scientific-software   free-software   fuzzy   gdal   genetic-diversity   geospatial   geospatial-semantic-array-programming   gnu-bash   gnu-linux   gnu-octave   habitat-suitability   integration-techniques   mastrave-modelling-library   maximum-habitat-suitability   modelling-uncertainty   multiplicity   peseta-series   python   regional-climate-models   relative-distance-similarity   robust-modelling   semantic-array-programming   semantic-constraints   semantics   spatial-disaggregation   sres-a1b   supervised-training   unsupervised-training  

Abstract

[::] In Europe, forests play a strategic multifunctional role, serving economic, social and environmental purposes. However, their complex interaction with climate change is not yet well understood. [::] The JRC PESETA project series proposes a consistent multi-sectoral assessment of the impacts of climate change in Europe. [::] Within the PESETA II project, a robust methodology is introduced for modelling the habitat suitability of forest tree species (2071-2100 time horizon). [::] Abies alba (the silver fir) is selected as case study: a main European tree ...

References

  1. European Commission, 2013. Communication from the Commission to the European Parliament, the Council, the European Economic and Social Committee and the Committee of the Regions - A new EU forest strategy: for forests and the forest based sector. No. COM(2013) 659 final. Communication from the Commission to the Council and the European Parliament. http://eur-lex.europa.eu/legal-content/EN/TXT/?uri=celex:52013DC0659 , INRMM-MiD:12642065 .
  2. European Commission, 2013. Commission staff working document accompanying the document: Communication from the commission to
 

Mapping wood production in European forests

  
Forest Ecology and Management, Vol. 357 (December 2015), pp. 228-238, https://doi.org/10.1016/j.foreco.2015.08.007

Abstract

[Highlights] [::] We constructed high-resolution wood production maps for Europe. [::] Productivity, tree species and ruggedness affect wood production patterns. [::] Using these factors improves disaggregation of wood production statistics. [Abstract] Wood production is an important forest use, impacting a range of other ecosystem services. However, information on the spatial patterns in wood production is limited and often available only for larger administrative units. In this study, we developed high-resolution wood production maps for European forests. We collected wood production statistics for 29 European countries from ...

 

Novel climates, no-analog communities, and ecological surprises

  
Frontiers in Ecology and the Environment, Vol. 5, No. 9. (November 2007), pp. 475-482, https://doi.org/10.1890/070037

Abstract

No-analog communities (communities that are compositionally unlike any found today) occurred frequently in the past and will develop in the greenhouse world of the future. The well documented no-analog plant communities of late-glacial North America are closely linked to “novel” climates also lacking modern analogs, characterized by high seasonality of temperature. In climate simulations for the Intergovernmental Panel on Climate Change A2 and B1 emission scenarios, novel climates arise by 2100 AD, primarily in tropical and subtropical regions. These future novel ...

 

A cautionary note on the use of hypervolume kernel density estimators in ecological niche modelling

  
Global Ecology and Biogeography (August 2016), https://doi.org/10.1111/geb.12492

Abstract

Blonder et al. (2014, Global Ecology and Biogeography, 23, 595–609) introduced a new multivariate kernel density estimation (KDE) method to infer Hutchinsonian hypervolumes in the modelling of ecological niches. The authors argued that their KDE method matches or outperforms several methods for estimating hypervolume geometries and for conducting species distribution modelling. Further clarification, however, is appropriate with respect to the assumptions and limitations of KDE as a method for species distribution modelling. Using virtual species and controlled environmental scenarios, we show ...

 

Predicting the impacts of climate change on the distribution of species: are bioclimate envelope models useful?

  
Global Ecology and Biogeography, Vol. 12, No. 5. (1 September 2003), pp. 361-371, https://doi.org/10.1046/j.1466-822x.2003.00042.x

Abstract

Modelling strategies for predicting the potential impacts of climate change on the natural distribution of species have often focused on the characterization of a species’ bioclimate envelope. A number of recent critiques have questioned the validity of this approach by pointing to the many factors other than climate that play an important part in determining species distributions and the dynamics of distribution changes. Such factors include biotic interactions, evolutionary change and dispersal ability. This paper reviews and evaluates criticisms of bioclimate ...

 

Improving generalized regression analysis for the spatial prediction of forest communities

  
Journal of Biogeography, Vol. 33, No. 10. (October 2006), pp. 1729-1749, https://doi.org/10.1111/j.1365-2699.2006.01465.x

Abstract

Abstract Aim  This study used data from temperate forest communities to assess: (1) five different stepwise selection methods with generalized additive models, (2) the effect of weighting absences to ensure a prevalence of 0.5, (3) the effect of limiting absences beyond the environmental envelope defined by presences, (4) four different methods for incorporating spatial autocorrelation, and (5) the effect of integrating an interaction factor defined by a regression tree on the residuals of an initial environmental model. Location  State of Vaud, ...

 

Modeling the probability of resource use: the effect of, and dealing with, detecting a species imperfectly

  
Journal of Wildlife Management, Vol. 70, No. 2. (1 April 2006), pp. 367-374, https://doi.org/10.2193/0022-541x(2006)70[367:mtporu]2.0.co;2

Abstract

Resource-selection probability functions and occupancy models are powerful methods of identifying areas within a landscape that are highly used by a species. One common design/analysis method for estimation of a resource-selection probability function is to classify a sample of units as used or unused and estimate the probability of use as a function of independent variables using, for example, logistic regression. This method requires that resource units are correctly classified as unused (i.e., the species is never undetected in a used ...

 

Climate and species functional traits influence maximum live tree stocking in the Lake States, USA

  
Forest Ecology and Management, Vol. 386 (February 2017), pp. 51-61, https://doi.org/10.1016/j.foreco.2016.12.007

Abstract

[Highlights] [::] Specific gravity and shade tolerance impact maximum stocking of tree species. [::] Temperature and precipitation interact with these traits to govern maximum stocking. [::] The results provide a simple, additive density measure for these complex forests. [Abstract] Quantifying the density of live trees in forest stands and partitioning it between species or other stand components is critical for predicting forest dynamics and responses to management, as well as understanding the impacts of stand composition and structure on productivity. As plant traits such as shade ...

 

Modelling potential impacts of climate change on the bioclimatic envelope of species in Britain and Ireland

  
Global Ecology and Biogeography, Vol. 11, No. 6. (November 2002), pp. 453-462, https://doi.org/10.1111/j.1466-8238.2002.00304.x

Abstract

[Aim] Climate change has the potential to have significant impacts on the distribution of species and on the composition of habitats. This paper identifies the potential changes in the future distribution of species under the UKCIP98 climate change scenarios, in order that such changes can be taken into account in conservation management. [Location] The model was applied to Britain and Ireland. [Methods] A model based on an artificial neural network was used to predict the changing bioclimate envelopes of species in Britain and ...

 

Constraints on global fire activity vary across a resource gradient

  
Ecology, Vol. 92, No. 1. (2011), pp. 121-132, https://doi.org/10.1890/09-1843.1

Abstract

We provide an empirical, global test of the varying constraints hypothesis, which predicts systematic heterogeneity in the relative importance of biomass resources to burn and atmospheric conditions suitable to burning (weather/climate) across a spatial gradient of long-term resource availability. Analyses were based on relationships between monthly global wildfire activity, soil moisture, and mid-tropospheric circulation data from 2001 to 2007, synthesized across a gradient of long-term averages in resources (net primary productivity), annual temperature, and terrestrial biome.We demonstrate support for the varying ...

 

Novel three-step pseudo-absence selection technique for improved species distribution modelling

  
PLOS ONE, Vol. 8, No. 8. (13 August 2013), e71218, https://doi.org/10.1371/journal.pone.0071218

Abstract

Pseudo-absence selection for spatial distribution models (SDMs) is the subject of ongoing investigation. Numerous techniques continue to be developed, and reports of their effectiveness vary. Because the quality of presence and absence data is key for acceptable accuracy of correlative SDM predictions, determining an appropriate method to characterise pseudo-absences for SDM’s is vital. The main methods that are currently used to generate pseudo-absence points are: 1) randomly generated pseudo-absence locations from background data; 2) pseudo-absence locations generated within a delimited geographical ...

 

Climatologies at high resolution for the earth's land surface areas

  
Scientific Data, Vol. 4 (Sep 2017), 170122, https://doi.org/10.1038/sdata.2017.122

Abstract

High-resolution information on climatic conditions is essential to many applications in environmental and ecological sciences. Here we present the CHELSA (Climatologies at high resolution for the earth’s land surface areas) data of downscaled model output temperature and precipitation estimates of the ERA-Interim climatic reanalysis to a high resolution of 30 arc sec. The temperature algorithm is based on statistical downscaling of atmospheric temperatures. The precipitation algorithm incorporates orographic predictors including wind fields, valley exposition, and boundary layer height, with a subsequent bias correction. ...

 

CHELSA climatologies at high resolution for the earth's land surface areas (Version 1.1)

  

Abstract

CHELSA_v1.1 (http://chelsa-climate.org/) is a high resolution (30 arc sec, ~1 km) climate data set for the earth land surface areas. It includes monthly and annual mean temperature and precipitation patterns as well as derived bioclimatic and interannual parameters for the time period 1979-2013. CHELSA_v1.1 is based on a quasi-mechanistical statistical downscaling of the ERA interim global circulation model (http://www.ecmwf.int/en/research/climate-reanalysis/era-interim) with a GPCC (https://www.dwd.de/EN/ourservices/gpcc/gpcc.html) and GHCN (https://www.ncdc.noaa.gov/ghcnm/) bias correction. ...

 

A climate-based model to predict potential treeline position around the globe

  
Alpine Botany, Vol. 124, No. 1. (2014), pp. 1-12, https://doi.org/10.1007/s00035-014-0124-0

Abstract

In situ temperature measurements revealed that the position of the high-elevation treeline is associated with a minimum seasonal mean air temperature within a temperature-defined minimum season length across latitudes. Here, we build upon this experience and present the results of a global statistical analysis and a predictive model for low temperature treeline positions. We identified 376 natural treelines from satellite images across the globe, and searched for their closest climatic proxies using a climate database. The analysis included a snow and ...

 

Downscaling European species atlas distributions to a finer resolution: implications for conservation planning

  
Global Ecology and Biogeography, Vol. 14, No. 1. (1 January 2005), pp. 17-30, https://doi.org/10.1111/j.1466-822x.2004.00128.x

Abstract

[Aim] One of the limitations to using species’ distribution atlases in conservation planning is their coarse resolution relative to the needs of local planners. In this study, a simple approach to downscale original species atlas distributions to a finer resolution is outlined. If such a procedure yielded accurate downscaled predictions, then it could be an aid to using available distribution atlases in real-world local conservation decisions. [Location]  Europe. [Methods]  An iterative procedure based on generalized additive modelling is used to downscale original ...

 

An assessment of methods and remote-sensing derived covariates for regional predictions of 1 km daily maximum air temperature

  
Remote Sensing, Vol. 6, No. 9. (16 September 2014), pp. 8639-8670, https://doi.org/10.3390/rs6098639

Abstract

The monitoring and prediction of biodiversity and environmental changes is constrained by the availability of accurate and spatially contiguous climatic variables at fine temporal and spatial grains. In this study, we evaluate best practices for generating gridded, one-kilometer resolution, daily maximum air temperature surfaces in a regional context, the state of Oregon, USA. Covariates used in the interpolation include remote sensing derived elevation, aspect, canopy height, percent forest cover and MODIS Land Surface Temperature (LST). Because of missing values, ...

 

The relationship of drought frequency and duration to time scales

  
In Eighth Conference on Applied Climatology (January 1993)

Abstract

[Excerpt: Introduction] The definition of drought has continually been a stumbling block for drought monitoring and analysis. Wilhite and Glantz (1985) completed a thorough review of dozens of drought definitions and identified six overall categories: meteorological, climatological, atmospheric, agricultural, hydrologic and water management. Dracup et al. (1980) also reviewed definitions. All points of view seem to agree that drought is a condition of insufficient moisture caused by a deficit in precipitation over some time period. Difficulties are primarily related to the time period over which deficits accumulate and to the connection of the deficit in precipitation to deficits in usable ...

 

Modeling spatial patterns of saturated areas: a comparison of the topographic wetness index and a dynamic distributed model

  
Journal of Hydrology, Vol. 373, No. 1-2. (June 2009), pp. 15-23, https://doi.org/10.1016/j.jhydrol.2009.03.031

Abstract

Topography is often one of the major controls on the spatial pattern of saturated areas, which in turn is a key to understanding much of the variability in soils, hydrological processes, and stream water quality. The topographic wetness index (TWI) has become a widely used tool to describe wetness conditions at the catchment scale. With this index, however, it is assumed that groundwater gradients always equal surface gradients. To overcome this limitation, we suggest deriving wetness indices based on simulations of ...

 

Physical and biological feedbacks of deforestation

  
Reviews of Geophysics, Vol. 50, No. 4. (14 December 2012), https://doi.org/10.1029/2012rg000394

Abstract

Forest vegetation can interact with its surrounding environment in ways that enhance conditions favorable for its own existence. Removal of forest vegetation has been shown to alter these conditions in a number of ways, thereby inhibiting the reestablishment of the same community of woody plants. The effect of vegetation on an environmental variable along with vegetation susceptibility to the associated environmental conditions may imply a positive feedback: Changes in the internal conditions controlling this variable such as deforestation could inhibit the ...

 

Corrigendum to "Modelling soil erosion at European scale: towards harmonization and reproducibility" published in Nat. Hazards Earth Syst. Sci.,15, 225-245, 2015

  
Natural Hazards and Earth System Science, Vol. 15, No. 2. (16 February 2015), pp. 291-291, https://doi.org/10.5194/nhess-15-291-2015

Abstract

[Excerpt] Two editorial mistakes were found in the article. Both refer to Eq. (2), p. 231 (whose correct version was published in the discussion paper, p. 2652). [\n] The first mistake is related to the operator Ω, which was wrongly rendered with a summation operator (Σ). The editorial notation mistake is also evident by considering the semantics of the RDS (relative distance similarity) statistics. As explained in de Rigo et al. (2013) and Bosco et al. (2013), RDS is defined in [0, 1]. Therefore, a summation operator whose arguments are quantities ...

 

Climate change increases the drought risk in Central European forests: what are the options for adaptation?

  
Forestry Journal, Vol. 60, No. 1. (1 January 2014), https://doi.org/10.2478/forj-2014-0001

Abstract

The paper presents information on the projected drought exposure of Central Europe, describes the anticipated dynamics of the regional forests, and identifies measures facilitating the adaptation of forests to climate change-induced drought risk. On the basis of an ensemble of climate change scenarios we expect substantial drying in southern Slovakia and Hungary, while such trends were found to be less pronounced for the Czech Republic and Austria. In response to these climate trajectories, a change in species composition towards a higher ...

 

Tree-rings reflect the impact of climate change on Quercus ilex L. along a temperature gradient in Spain over the last 100 years

  
Forest Ecology and Management, Vol. 262, No. 9. (November 2011), pp. 1807-1816, https://doi.org/10.1016/j.foreco.2011.07.025

Abstract

[Highlights] [::] We study the oak response to climate along a temperature gradient using tree-rings. [::] Stand competition history was reconstructed and growth trends discussed. [::] Just warmer stands have reduced productivity responding to water stress increase. [::] The relationship between growth and precipitation was non-linear (sigmoidal). [::] The sigmoid response reflected biogeographically meaningful thresholds. [Abstract] We analyzed tree rings over the past 100 years to understand the response of Quercus ilex L. to climate change at four different sites along a temperature gradient in a highly ...

 

Collinearity: a review of methods to deal with it and a simulation study evaluating their performance

  
Ecography, Vol. 36, No. 1. (1 January 2013), pp. 27-46, https://doi.org/10.1111/j.1600-0587.2012.07348.x

Abstract

Collinearity refers to the non independence of predictor variables, usually in a regression-type analysis. It is a common feature of any descriptive ecological data set and can be a problem for parameter estimation because it inflates the variance of regression parameters and hence potentially leads to the wrong identification of relevant predictors in a statistical model. Collinearity is a severe problem when a model is trained on data from one region or time, and predicted to another with a different or ...

Visual summary

 

Modeling potential distribution and carbon dynamics of natural terrestrial ecosystems: a case study of Turkey

  
Sensors, Vol. 7, No. 10. (11 October 2007), pp. 2273-2296, https://doi.org/10.3390/s7102273

Abstract

We derived a simple model that relates the classification of biogeoclimatezones, (co)existence and fractional coverage of plant functional types (PFTs), and patternsof ecosystem carbon (C) stocks to long-term average values of biogeoclimatic indices in atime- and space-varying fashion from climate–vegetation equilibrium models. ProposedDynamic Ecosystem Classification and Productivity (DECP) model is based on the spatialinterpolation of annual biogeoclimatic variables through multiple linear regression (MLR)models and inverse distance weighting (IDW) and was applied to the entire Turkey of780,595 km2 on a 500 m ...

 

From introduction to the establishment of alien species: bioclimatic differences between presence and reproduction localities in the slider turtle

  
Diversity and Distributions, Vol. 15, No. 1. (January 2009), pp. 108-116, https://doi.org/10.1111/j.1472-4642.2008.00516.x

Abstract

[Aim]  Understanding the factors determining the transition from introduction of aliens to the establishment of invasive populations is a critical issue of the study of biological invasions, and has key implications for management. Differences in fitness among areas of introduction can define the zones where aliens become invasive. The American slider turtle Trachemys scripta has been introduced worldwide, and has negative effects on freshwater communities, but only a subset of introduced populations breed successfully. We used species distribution models to assess ...

 

A MODIS-based global 1-km maximum green vegetation fraction dataset

  
Journal of Applied Meteorology and Climatology, Vol. 53, No. 8. (21 May 2014), pp. 1996-2004, https://doi.org/10.1175/jamc-d-13-0356.1

Abstract

Global land-cover data are widely used in regional and global models because land cover influences land–atmosphere exchanges of water, energy, momentum, and carbon. Many models use data of maximum green vegetation fraction (MGVF) to describe vegetation abundance. MGVF products have been created in the past using different methods, but their validation with ground sites is difficult. Furthermore, uncertainty is introduced because many products use a single year of satellite data. In this study, a global 1-km MGVF product is developed on ...

Visual summary

  • Caption: [Excerpt from the article] Green vegetation fraction (GVF; Deardorff 1978) is widely used in global models [...] Along with leaf area index (LAI; Myneni et al. 2002), GVF is used to describe the abundance of vegetation in most global models [...] The Community Land Model (CLM; Lawrence and Chase 2007) currently uses estimates of maximum GVF from ‘‘Continuous Fields’’ (CF) data that are based on measurements from the Moderate Resolution Imaging
 

Applying Geospatial Semantic Array Programming for a reproducible set of bioclimatic indices in Europe

  
IEEE Earthzine, Vol. 7, No. 2. (2014), 877975, https://doi.org/10.1101/009589

Abstract

Bioclimate-driven regression analysis is a widely used approach for modelling ecological niches and zonation. Although the bioclimatic complexity of the European continent is high, a particular combination of 12 climatic and topographic covariates was recently found able to reliably reproduce the ecological zoning of the Food and Agriculture Organization of the United Nations (FAO) for forest resources assessment at pan-European scale, generating the first fuzzy similarity map of FAO ecozones in Europe. The reproducible procedure followed to derive this collection of ...

Visual summary

 

Movement of outbreak populations of mountain pine beetle: influences of spatiotemporal patterns and climate

  
Ecography, Vol. 31, No. 3. (June 2008), pp. 348-358, https://doi.org/10.1111/j.0906-7590.2007.05453.x

Abstract

Insect outbreaks exert landscape-level influences, yet quantifying the relative contributions of various exogenous and endogenous factors that contribute to their pattern and spread remains elusive. We examine an outbreak of mountain pine beetle covering an 800 thousand ha area on the Chilcotin Plateau of British Columbia, Canada, during the 1970s and early 1980s. We present a model that incorporates the spatial and temporal arrangements of outbreaking insect populations, as well as various climatic factors that influence insect development. Onsets of eruptions ...

 

Five (or so) challenges for species distribution modelling

  
Journal of Biogeography, Vol. 33, No. 10. (1 October 2006), pp. 1677-1688, https://doi.org/10.1111/j.1365-2699.2006.01584.x

Abstract

Species distribution modelling is central to both fundamental and applied research in biogeography. Despite widespread use of models, there are still important conceptual ambiguities as well as biotic and algorithmic uncertainties that need to be investigated in order to increase confidence in model results. We identify and discuss five areas of enquiry that are of high importance for species distribution modelling: (1) clarification of the niche concept; (2) improved designs for sampling data for building models; (3) improved parameterization; (4) improved ...

 

Climate change and oak growth decline: Dendroecology and stand productivity of a Turkey oak (Quercus cerris L.) old stored coppice in Central Italy

  
Annals of Forest Science, Vol. 67, No. 7. (2010), pp. 706-706, https://doi.org/10.1051/forest%2f2010031

Abstract

[::] We combined stem volume increment analysis with dendroecological tools to address two unresolved issues concerning oak dieback in Mediterranean areas: early detection of changes in stand growth, and identification of mechanisms for observed growth declines. [::] We reconstructed productivity of a stored coppice formed by Turkey oak (Quercus cerris) to test if its growth decline was linked to climatic variability, while also accounting for age-related and sociological factors. [::] Drought in May–June and in prior-year late summer-autumn was negatively ...

 

The climatic interpretation of pan-European signature years in oak ring-width series

  
The Holocene, Vol. 12, No. 6. (01 September 2002), pp. 689-694, https://doi.org/10.1191/0959683602hl582rp

Abstract

Large-scale signature years, in which oak growth across much of northern Europe varies consistently, are identified. Postulating that the likely cause of such widespread departures in growth is climatic, it is shown that these years were characterized by pan-European anomalies in soil-moisture availability, rainfall and temperature, with enhanced growth associated with an extended period of increased soil-moisture availability and reduced growth associated with lower temperatures and reduced soil moisture. These climatic anomalies are, in turn, associated with a large-scale and persistent ...

 

Applications of species distribution modeling to paleobiology

  
Quaternary Science Reviews, Vol. 30, No. 21-22. (October 2011), pp. 2930-2947, https://doi.org/10.1016/j.quascirev.2011.06.012

Abstract

[Highlights] [::] Species distribution modeling (SDM) offers new possibilities for paleobiology. [::] Key methods issues include predictors, validation, and integration with genetics. [::] Many SDM-based studies have addressed the role of Pleistocene glacial refugia. [::] SDM-based studies also address megafaunal extinctions and deep-time biogeography. [::] The equilibrium postulate and niche stability constitute important assumptions. [Abstract] Species distribution modeling (SDM: statistical and/or mechanistic approaches to the assessment of range determinants and prediction of species occurrence) offers new possibilities for ...

 

Limited filling of the potential range in European tree species

  
Ecology Letters, Vol. 7, No. 7. (01 June 2004), pp. 565-573, https://doi.org/10.1111/j.1461-0248.2004.00614.x

Abstract

The relative roles of environment and history in controlling large-scale species distributions are important not only theoretically, but also for forecasting range responses to climatic change. Here, we use atlas data to examine the extent to which 55 tree species fill their climatically determined potential ranges in Europe. Quantifying range filling (R/P) as realized/potential range size ratios using bioclimatic envelope modelling we find mean R/P = 38.3% (±30.3% SD). Many European tree species naturalize extensively outside their native ranges, providing support for interpreting ...

 

Physiological minimum temperatures for root growth in seven common European broad-leaved tree species

  
Tree Physiology, Vol. 34, No. 3. (01 March 2014), pp. 302-313, https://doi.org/10.1093/treephys/tpu003

Abstract

Temperature is the most important factor driving the cold edge distribution limit of temperate trees. Here, we identified the minimum temperatures for root growth in seven broad-leaved tree species, compared them with the species' natural elevational limits and identified morphological changes in roots produced near their physiological cold limit. Seedlings were exposed to a vertical soil-temperature gradient from 20 to 2 °C along the rooting zone for 18 weeks. In all species, the bulk of roots was produced at temperatures above 5 °C. However, ...

 

Oak seedling survival and growth along resource gradients in Mediterranean forests: implications for regeneration in current and future environmental scenarios

  
Oikos, Vol. 117, No. 11. (28 October 2008), pp. 1683-1699, https://doi.org/10.1111/j.1600-0706.2008.16814.x

Abstract

Understanding seedling performance across resource gradients is crucial for defining the regeneration niche of plant species under current environmental conditions and for predicting potential changes under a global change scenario. A 2-year field experiment was conducted to determine how seedling survival and growth of two evergreen and two deciduous Quercus species vary along gradients of light and soil properties in two Mediterranean forests with contrasting soils and climatic conditions. Half the seedlings were subjected to an irrigation treatment during the first ...

 

Shortage of nutrients and excess of toxic elements in soils limit the distribution of soil-sensitive tree species in temperate forests

  
Forest Ecology and Management, Vol. 297 (June 2013), pp. 94-107, https://doi.org/10.1016/j.foreco.2013.02.008

Abstract

A sound knowledge of the soil properties required by tree species is a prerequisite for addressing many practical and scientific issues such as forest management or the predictive mapping of tree species. To date, such knowledge has been derived mainly from laboratory experiments and from case studies in the field. The importance of soils for the distribution of tree species has, however, hardly been tested systematically with comprehensive data including climate, soil and vegetation inventories.In our study, we analysed a comprehensive ...

 

Climatic limits for the present distribution of beech (Fagus L.) species in the world

  
Journal of Biogeography, Vol. 33, No. 10. (2006), pp. 1804-1819, https://doi.org/10.1111/j.1365-2699.2006.01533.x

Abstract

[Aim]:  Beech (Fagus L., Fagaceae) species are representative trees of temperate deciduous broadleaf forests in the Northern Hemisphere. We focus on the distributional limits of beech species, in particular on identifying climatic factors associated with their present range limits. [Location]: Beech species occur in East Asia, Europe and West Asia, and North America. We collated information on both the southern and northern range limits and the lower and upper elevational limits for beech species in each region. [Methods]:  In total, 292 lower/southern limit ...

 

A statistical explanation of MaxEnt for ecologists

  
Diversity and Distributions, Vol. 17, No. 1. (1 January 2011), pp. 43-57, https://doi.org/10.1111/j.1472-4642.2010.00725.x

Abstract

MaxEnt is a program for modelling species distributions from presence-only species records. This paper is written for ecologists and describes the MaxEnt model from a statistical perspective, making explicit links between the structure of the model, decisions required in producing a modelled distribution, and knowledge about the species and the data that might affect those decisions. To begin we discuss the characteristics of presence-only data, highlighting implications for modelling distributions. We particularly focus on the problems of sample bias and lack ...

 

Improving the prediction of plant species distribution and community composition by adding edaphic to topo-climatic variables

  
Journal of Vegetation Science, Vol. 24, No. 4. (1 July 2013), pp. 593-606, https://doi.org/10.1111/jvs.12002

Abstract

Questions Soil properties have been widely shown to influence plant growth and distribution. However, the degree to which edaphic variables can improve models based on topo-climatic variables is still unclear. In this study, we tested the roles of seven edaphic variables, namely (1) pH; (2) the content of nitrogen and of (3) phosphorus; (4) silt; (5) sand; (6) clay and (7) carbon-to-nitrogen ratio, as predictors of species distribution models in an edaphically heterogeneous landscape. We also tested how the respective influence ...

 

(INRMM-MiD internal record) List of keywords of the INRMM meta-information database - part 4

  
(February 2014)
Keywords: banksia-serrata   bark-beetle   batocera-lineolata   bavaria   bedrock   beech-forest   behaviour   behavioural-contracts   belgium   beliefs   below-ground-biomass   berberis-vulgaris   bernoulli   bertholletia-excelsa   betula-alba   betula-albo-sinensis   betula-alleghaniensis   betula-alnoides   betula-ashburneri   betula-celtiberica   betula-chichibuensis   betula-chinensis   betula-cordifolia   betula-costata   betula-cylindrostachya   betula-dahurica   betula-ermanii   betula-falcata   betula-fruticosa   betula-glandulosa   betula-globispica   betula-gmelinii   betula-grossa   betula-gynoterminalis   betula-honanensis   betula-humilis   betula-karagandensis   betula-klokovii   betula-kotulae   betula-lenta   betula-maximowicziana   betula-megrelica   betula-michauxii   betula-microphylla   betula-murrayana   betula-nana   betula-nigra   betula-occidentalis   betula-papyrifera   betula-pendula   betula-platyphylla   betula-populifolia   betula-potamophila   betula-psammophila   betula-pubescens   betula-raddeana   betula-recurvata   betula-skvorsovii   betula-spp   betula-sunanensis   betula-szaferi   betula-utilis   betula-zinserlingii   betulaceae   bias   bias-correction   bias-disembodied-science-vs-computational-scholarship   bias-toward-primacy-of-theory-over-reality   bibliometrics   bifurcation-analysis   big-data   binomial-distribution   bio-based-economy   biochemical-product   bioclimatic-envelope-models   bioclimatic-predictors   biodiversity   biodiversity-hotspot   biodiversity-impacts   biodiversity-indicator   biodiversity-offsets   bioeconomy   bioenergy   bioethanol   biofilm   biofiltration   biofuel   biogenic-volatile-organic-compounds   biogeography   bioinformatics   biological-control   biological-invasions   biology   biomass   biomass-burning   biomass-production   biomass-to-energy   biome   biomonitoring   inrmm-list-of-tags  

Abstract

List of indexed keywords within the transdisciplinary set of domains which relate to the Integrated Natural Resources Modelling and Management (INRMM). In particular, the list of keywords maps the semantic tags in the INRMM Meta-information Database (INRMM-MiD). [\n] The INRMM-MiD records providing this list are accessible by the special tag: inrmm-list-of-tags ( http://mfkp.org/INRMM/tag/inrmm-list-of-tags ). ...

 

Understanding Earth’s eroding surface with 10Be

  
GSA Today, Vol. 21, No. 8. (August 2011), pp. 4-10, https://doi.org/10.1130/g111a.1

Abstract

For more than a century, geologists have sought to measure the distribution of erosion rates on Earth's dynamic surface. Since the mid-1980s, measurements of in situ 10Be, a cosmogenic radionuclide, have been used to estimate outcrop and basin-scale erosion rates at 87 sites around the world. Here, we compile, normalize, and compare published 10Be erosion rate data (n = 1599) in order to understand how, on a globalscale, geologic erosion rates integrated over 103 to 106 years varybetween climate zones, tectonic ...

 

Bioclimatic and physical characterization of the world’s islands

  
Proceedings of the National Academy of Sciences, Vol. 110, No. 38. (17 September 2013), pp. 15307-15312, https://doi.org/10.1073/pnas.1306309110

Abstract

The Earth’s islands harbor a distinct, yet highly threatened, biological and cultural diversity that has been shaped by geographic isolation and unique environments. Island systems are key natural laboratories for testing theory in ecology and evolution. However, despite their potential usefulness for research, a quantitative description of island environments and an environmental classification are still lacking. Here, we prepare a standardized dataset and perform a comprehensive global environmental characterization for 17,883 of the world’s marine islands >1 km2 (∼98% of total ...

 

Hazard Assessment of Debris Flows by Credal Networks

  
In iEMSs 2004 International Congress: "Complexity and Integrated Resources Management" (2004)

Abstract

Debris flows are destructive natural hazards that affect human life, buildings, and infrastructures. Despite their importance, debris flows are only partially understood, and human expertise still plays a key role for hazard identification. This paper proposes filling the modelling gap by using credal networks, an imprecise-probability model. The model uses a directed graph to capture the causal relationships between the triggering factors of debris flows. Quantitative influences are represented by probability intervals, determined from historical data, expert knowledge, and theoretical models. ...

 

Predicting species distribution: offering more than simple habitat models

  
Ecology Letters, Vol. 8, No. 9. (1 September 2005), pp. 993-1009, https://doi.org/10.1111/j.1461-0248.2005.00792.x

Abstract

In the last two decades, interest in species distribution models (SDMs) of plants and animals has grown dramatically. Recent advances in SDMs allow us to potentially forecast anthropogenic effects on patterns of biodiversity at different spatial scales. However, some limitations still preclude the use of SDMs in many theoretical and practical applications. Here, we provide an overview of recent advances in this field, discuss the ecological principles and assumptions underpinning SDMs, and highlight critical limitations and decisions inherent in the construction ...

 

Latitudinal gradients as natural laboratories to infer species' responses to temperature

  
Journal of Ecology, Vol. 101, No. 3. (1 May 2013), pp. 784-795, https://doi.org/10.1111/1365-2745.12074

Abstract

* Macroclimatic variation along latitudinal gradients provides an excellent natural laboratory to investigate the role of temperature and the potential impacts of climate warming on terrestrial organisms. * Here, we review the use of latitudinal gradients for ecological climate change research, in comparison with altitudinal gradients and experimental warming, and illustrate their use and caveats with a meta-analysis of latitudinal intraspecific variation in important life-history traits of vascular plants. * We first provide an overview of latitudinal patterns in temperature and ...

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Integrated Natural Resources Modelling and Management - Meta-information Database. http://mfkp.org/INRMM/tag/bioclimatic-predictors

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Meta-information Database (INRMM-MiD).
This database integrates a dedicated meta-information database in CiteULike (the CiteULike INRMM Group) with the meta-information available in Google Scholar, CrossRef and DataCite. The Altmetric database with Article-Level Metrics is also harvested. Part of the provided semantic content (machine-readable) is made even human-readable thanks to the DCMI Dublin Core viewer. Digital preservation of the meta-information indexed within the INRMM-MiD publication records is implemented thanks to the Internet Archive.
The library of INRMM related pubblications may be quickly accessed with the following links.
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Full-text and abstracts of the publications indexed by the INRMM meta-information database are copyrighted by the respective publishers/authors. They are subject to all applicable copyright protection. The conditions of use of each indexed publication is defined by its copyright owner. Please, be aware that the indexed meta-information entirely relies on voluntary work and constitutes a quite incomplete and not homogeneous work-in-progress.
INRMM-MiD was experimentally established by the Maieutike Research Initiative in 2008 and then improved with the help of several volunteers (with a major technical upgrade in 2011). This new integrated interface is operational since 2014.