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Selection: with tag species-distribution [at least 200 articles] 

 

Scale-dependent portfolio effects explain growth inflation and volatility reduction in landscape demography

  
Proceedings of the National Academy of Sciences, Vol. 114, No. 47. (21 November 2017), pp. 12507-12511, https://doi.org/10.1073/pnas.1704213114

Abstract

[Significance] Population demography is central to many problems in ecology, evolution, and conservation biology, yet there is a gap between the information needed about the demography of population over multiple spatial scales and the available data, which are largely local. Inspired by concepts from landscape ecology and Markowitz's investment portfolio theory, we address this lacuna by developing a method for quantifying and predicting the demography of multiple populations across spatial scales and apply it to gypsy moth populations. We show that population ...

 

Character displacement

  
Systematic Zoology, Vol. 5, No. 2. (June 1956), pp. 49-64, https://doi.org/10.2307/2411924

Abstract

[Excerpt] It is the purpose of the present paper to discuss a seldom-recognized and poorly known speciation phenomenon that we consider to be of potential major significance in animal systematics. This condition, which we have come to call "character displacement," may be roughly described as follows. Two closely related species have overlapping ranges. In the parts of the ranges where one species occurs alone, the populations of that species are similar to the other species and may even be very difficult ...

 

GlobalTreeSearch: the first complete global database of tree species and country distributions

  
Journal of Sustainable Forestry, Vol. 36, No. 5. (4 July 2017), pp. 454-489, https://doi.org/10.1080/10549811.2017.1310049

Abstract

This article presents, for the first time, an overview of all known tree species by scientific name and country level distribution, and describes an online database GlobalTreeSearch that provides access to this information. Based on our comprehensive analysis of published data sources and expert input, the number of tree species currently known to science is 60,065, representing 20% of all angiosperm and gymnosperm plant species. Nearly half of all tree species (45%) are found in just 10 families, with the 3 ...

 

Using citizen science data to estimate climatic niches and species distributions

  
Basic and Applied Ecology, Vol. 20 (May 2017), pp. 75-85, https://doi.org/10.1016/j.baae.2017.04.001

Abstract

Opportunistic citizen data documenting species observations – i.e. observations collected by citizens in a non-standardized way – is becoming increasingly available. In the absence of scientific observations, this data may be a viable alternative for a number of research questions. Here we test the ability of opportunistic species records to provide predictions of the realized distribution of species and if species attributes can act as indicators of the reliability and completeness of these data. We use data for 39 reptile and ...

 

Bias correction in species distribution models: pooling survey and collection data for multiple species

  
Methods in Ecology and Evolution, Vol. 6, No. 4. (1 April 2015), pp. 424-438, https://doi.org/10.1111/2041-210x.12242

Abstract

[::] Presence-only records may provide data on the distributions of rare species, but commonly suffer from large, unknown biases due to their typically haphazard collection schemes. Presence–absence or count data collected in systematic, planned surveys are more reliable but typically less abundant. [::] We proposed a probabilistic model to allow for joint analysis of presence-only and survey data to exploit their complementary strengths. Our method pools presence-only and presence–absence data for many species and maximizes a joint likelihood, simultaneously estimating and adjusting ...

 

Point process models for presence-only analysis

  
Methods in Ecology and Evolution, Vol. 6, No. 4. (1 April 2015), pp. 366-379, https://doi.org/10.1111/2041-210x.12352

Abstract

[::] Presence-only data are widely used for species distribution modelling, and point process regression models are a flexible tool that has considerable potential for this problem, when data arise as point events. [::] In this paper, we review point process models, some of their advantages and some common methods of fitting them to presence-only data. [::] Advantages include (and are not limited to) clarification of what the response variable is that is modelled; a framework for choosing the number and location of quadrature ...

 

The uncertain nature of absences and their importance in species distribution modelling

  
Ecography, Vol. 33, No. 1. (1 February 2010), pp. 103-114, https://doi.org/10.1111/j.1600-0587.2009.06039.x

Abstract

Species distribution models (SDM) are commonly used to obtain hypotheses on either the realized or the potential distribution of species. The reliability and meaning of these hypotheses depends on the kind of absences included in the training data, the variables used as predictors and the methods employed to parameterize the models. Information about the absence of species from certain localities is usually lacking, so pseudo-absences are often incorporated to the training data. We explore the effect of using different kinds of ...

 

Using n-dimensional hypervolumes for species distribution modelling: a response to Qiao et al.

  
Global Ecology and Biogeography, Vol. 26, No. 9. (September 2017), pp. 1071-1075, https://doi.org/10.1111/geb.12611

Abstract

Hypervolume approaches are used to quantify functional diversity and quantify environmental niches for species distribution modelling. Recently, Qiao et al. ([1]) criticized our geometrical kernel density estimation (KDE) method for measuring hypervolumes. They used a simulation analysis to argue that the method yields high error rates and makes biased estimates of fundamental niches. Here, we show that (a) KDE output depends in useful ways on dataset size and bias, (b) other species distribution modelling methods make equally stringent but different assumptions ...

 

How disturbance, competition and dispersal interact to prevent tree range boundaries from keeping pace with climate change

  
Global Change Biology (28 July 2017), https://doi.org/10.1111/gcb.13847

Abstract

Climate change is expected to cause geographic shifts in tree species’ ranges, but such shifts may not keep pace with climate changes because seed dispersal distances are often limited and competition-induced changes in community composition can be relatively slow. Disturbances may speed changes in community composition, but the interactions among climate change, disturbance and competitive interactions to produce range shifts are poorly understood. We used a physiologically-based mechanistic landscape model to study these interactions in the northeastern United States. We designed ...

 

Climate extremes: observations, modeling, and impacts

  
Science In Science, Vol. 289, No. 5487. (22 September 2000), pp. 2068-2074, https://doi.org/10.1126/science.289.5487.2068

Abstract

One of the major concerns with a potential change in climate is that an increase in extreme events will occur. Results of observational studies suggest that in many areas that have been analyzed, changes in total precipitation are amplified at the tails, and changes in some temperature extremes have been observed. Model output has been analyzed that shows changes in extreme events for future climates, such as increases in extreme high temperatures, decreases in extreme low temperatures, and increases in intense ...

 

Divergence of species responses to climate change

  
Science Advances, Vol. 3, No. 5. (17 May 2017), e1603055, https://doi.org/10.1126/sciadv.1603055

Abstract

Climate change can have profound impacts on biodiversity and the sustainability of many ecosystems. Various studies have investigated the impacts of climate change, but large-scale, trait-specific impacts are less understood. We analyze abundance data over time for 86 tree species/groups across the eastern United States spanning the last three decades. We show that more tree species have experienced a westward shift (73%) than a poleward shift (62%) in their abundance, a trend that is stronger for saplings than adult trees. The ...

 

Chorological maps for the main European woody species

  
Data in Brief, Vol. 12 (June 2017), pp. 662-666, https://doi.org/10.1016/j.dib.2017.05.007

Abstract

A novel chorological data compilation for the main European tree and shrub species is presented. This dataset was produced by combining numerous and heterogeneous data collected from 20th century atlas monographs providing complete species distribution maps, and from more recent national to regional atlases, occurrence geodatabases and scientific literature. The dataset is composed of numerous species distribution maps available in geographical information system (GIS) format, created by compiling, evaluating and synthesizing data of all collected sources. The geometry of the individual ...

 

Geographic distribution of 24 major tree species in the Mediterranean and their genetic resources

  
(2016)

Abstract

[Excerpt: Introduction] The Mediterranean Basin is one of the world’s richest places in terms of animal and plant diversity. It is a highly diverse region and its mountains, rivers, forests and thousands of islands form a mosaic of natural and cultural landscapes of incomparable value. With around 25,000 species of native plants, of which more than half are endemic, and because many habitats and species are threatened, the Mediterranean is recognized as one of the Global Biodiversity Hotspots [18]. For millennia, ...

 

Do changes in spatial distribution, structure and abundance of silver fir (Abies alba Mill.) indicate its decline?

  
Forest Ecology and Management, Vol. 261, No. 4. (08 February 2011), pp. 844-854, https://doi.org/10.1016/j.foreco.2010.12.014

Abstract

Silver fir decline was investigated based on changes in spatial distribution of fir, fir abundance in forest stands, dbh (age) structure of fir, and abundance of fir regeneration. The authors used a large-scale approach to study the dynamics of silver fir over nearly 40 years. Based on Silva-SI, a spatial information system, the majority of total forest area in Slovenia was analysed for changes in the distribution of silver fir in the period 1970–2008 using artificial neural networks (ANNs), with respect ...

 

Ecology and the ratchet of events: climate variability, niche dimensions, and species distributions

  
Proceedings of the National Academy of Sciences, Vol. 106, No. Supplement 2. (17 November 2009), pp. 19685-19692, https://doi.org/10.1073/pnas.0901644106

Abstract

Climate change in the coming centuries will be characterized by interannual, decadal, and multidecadal fluctuations superimposed on anthropogenic trends. Predicting ecological and biogeographic responses to these changes constitutes an immense challenge for ecologists. Perspectives from climatic and ecological history indicate that responses will be laden with contingencies, resulting from episodic climatic events interacting with demographic and colonization events. This effect is compounded by the dependency of environmental sensitivity upon life-stage for many species. Climate variables often used in empirical niche models ...

 

Multispecies coalescent delimits structure, not species

  
Proceedings of the National Academy of Sciences, Vol. 114, No. 7. (14 February 2017), pp. 1607-1612, https://doi.org/10.1073/pnas.1607921114

Abstract

[Significance] Despite its widespread application to the species delimitation problem, our study demonstrates that what the multispecies coalescent actually delimits is structure. The current implementations of species delimitation under the multispecies coalescent do not provide any way for distinguishing between structure due to population-level processes and that due to species boundaries. The overinflation of species due to the misidentification of general genetic structure for species boundaries has profound implications for our understanding of the generation and dynamics of biodiversity, because any ecological ...

 

Niches and distributional areas: concepts, methods, and assumptions

  
Proceedings of the National Academy of Sciences, Vol. 106, No. Supplement 2. (17 November 2009), pp. 19644-19650, https://doi.org/10.1073/pnas.0901637106

Abstract

Estimating actual and potential areas of distribution of species via ecological niche modeling has become a very active field of research, yet important conceptual issues in this field remain confused. We argue that conceptual clarity is enhanced by adopting restricted definitions of “niche” that enable operational definitions of basic concepts like fundamental, potential, and realized niches and potential and actual distributional areas. We apply these definitions to the question of niche conservatism, addressing what it is that is conserved and showing ...

 

What does ecological modelling model? A proposed classification of ecological niche models based on their underlying methods

  
Ecological Modelling, Vol. 222, No. 8. (01 April 2011), pp. 1343-1346, https://doi.org/10.1016/j.ecolmodel.2011.01.018

Abstract

Species distribution model is the term most frequently used in ecological modelling, but other authors used instead predictive habitat distribution model or species-habitat models. A consensual ecological modelling terminology that avoids misunderstandings and takes into account the ecological niche theory does not exist at present. Moreover, different studies differ in the type of niche that is represented by similar distribution models. I propose to use as standard ecological modelling terminology the terms “ecological niche”, “potential niche”, “realized niche” models (for modelling ...

 

Abies alba Mill.

  
In Euro+Med Plantbase - the information resource for Euro-Mediterranean plant diversity (2014)

Abstract

[Excerpt] [\n] Name: Abies alba Mill. [\n] Nomencl. ref.: Gard. Dict., ed. 8: Abies No. 1. 1768 [\n] Rank: Species [\n] [...] [\n] Replaced synonym: Pinus picea L. [\n] Homotypic synonyms: Abies nobilis A. Dietr., nom. illeg. Abies pectinata DC., nom. illeg. Pinus pectinata Lam., nom. illeg. Pinus picea L. [\n] Heterotypic synonyms: Abies pardei Gaussen Abies alba subsp. apennina Brullo & al. [\n] [...] ...

 

Terrestrial ecosystems, soil and forests

  
In Climate change, impacts and vulnerability in Europe 2016 - An indicator-based report, Vol. 1/2017 (January 2017), pp. 153-182, https://doi.org/10.2800/534806

Abstract

[Excerpt: Key messages] [::] Observed climate change has had many impacts on terrestrial ecosystems, such as changes in soil conditions, advances in phenological stages, altitudinal and latitudinal migration of plant and animal species (generally northwards and upwards), and changes in species interactions and species composition in communities, including local extinctions. [::] The relative importance of climate change as a major driver of biodiversity and ecosystem change is projected to increase further in the future. In addition to climate change, human efforts to mitigate and adapt to ...

References

  1. Alkemade, R., Bakkenes, M., Eickhout, B., 2011. Towards a general relationship between climate change and biodiversity: An example for plant species in Europe. Regional Environmental Change 11, 143–150. https://doi.org/10.1007/s10113-010-0161-1 .
  2. Allen, C. D., Macalady, A. K., Chenchouni, H., Bachelet, D., McDowell, N., Vennetier, M., Kitzberger, T., Rigling, A., Breshears, D. D., Hogg, E. H. (Ted), Gonzalez, P., Fensham, R., Zhang, Z., Castro, J., Demidova, N., Lim, J.-H., Allard, G., Running, S. W., Semerci, A.,
 

Executive summary

  
In Climate change, impacts and vulnerability in Europe 2016 - An indicator-based report, Vol. 1/2017 (January 2017), pp. 12-30, https://doi.org/10.2800/534806

Abstract

[Excerpt: Key messages] [::] All of the key findings from the 2012 European Environment Agency (EEA) report on climate change, impacts and vulnerability in Europe are still valid. [::] Climate change is continuing globally and in Europe. Land and sea temperatures are increasing; precipitation patterns are changing, generally making wet regions in Europe wetter, particularly in winter, and dry regions drier, particularly in summer; sea ice extent, glacier volume and snow cover are decreasing; sea levels are rising; and climate-related extremes such as heat waves, heavy precipitation ...

References

  1. Ciscar, J.-C., Feyen, L., Soria, A., Lavalle, C., Raes, F., Perry, M., Nemry, F., Demirel, H., Rozsai, M., Dosio, A., Donatelli, M., Srivastava, A. K., Fumagalli, D., Niemeyer, S., Shrestha, S., Ciaian, P., Himics, M., Van Doorslaer, B., Barrios, S., Ibáñez, N., Forzieri, G., Rojas, R., Bianchi, A., Dowling, P., Camia, A., Libertà, G., San-Miguel-Ayanz, J., de Rigo, D., Caudullo, G., Barredo, J. I., Paci, D., Pycroft, J., Saveyn, B., Van Regemorter, D., Revesz, T., Vandyck, T.,
 

Climate change, impacts and vulnerability in Europe 2016 - An indicator-based report

  
Vol. 1/2017 (January 2017), https://doi.org/10.2800/534806

Abstract

[Excerpt: Executive summary] Key messages [::] All of the key findings from the 2012 European Environment Agency (EEA) report on climate change, impacts and vulnerability in Europe are still valid. [::] Climate change is continuing globally and in Europe. Land and sea temperatures are increasing; precipitation patterns are changing, generally making wet regions in Europe wetter, particularly in winter, and dry regions drier, particularly in summer; sea ice extent, glacier volume and snow cover are decreasing; sea levels are rising; and climate-related extremes such as heat waves, heavy ...

 

Sample selection bias and presence-only distribution models: implications for background and pseudo-absence data

  
Ecological Applications, Vol. 19, No. 1. (January 2009), pp. 181-197, https://doi.org/10.1890/07-2153.1

Abstract

Most methods for modeling species distributions from occurrence records require additional data representing the range of environmental conditions in the modeled region. These data, called background or pseudo-absence data, are usually drawn at random from the entire region, whereas occurrence collection is often spatially biased toward easily accessed areas. Since the spatial bias generally results in environmental bias, the difference between occurrence collection and background sampling may lead to inaccurate models. To correct the estimation, we propose choosing background data with ...

 

Model-based uncertainty in species range prediction

  
Journal of Biogeography, Vol. 33, No. 10. (October 2006), pp. 1704-1711, https://doi.org/10.1111/j.1365-2699.2006.01460.x

Abstract

[Aim]  Many attempts to predict the potential range of species rely on environmental niche (or ‘bioclimate envelope’) modelling, yet the effects of using different niche-based methodologies require further investigation. Here we investigate the impact that the choice of model can have on predictions, identify key reasons why model output may differ and discuss the implications that model uncertainty has for policy-guiding applications. [Location]  The Western Cape of South Africa. [Methods]  We applied nine of the most widely used modelling techniques to model potential ...

 

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 ...

 

Estimating abundance from repeated presence-absence data or point counts

  
Ecology, Vol. 84, No. 3. (March 2003), pp. 777-790, https://doi.org/10.1890/0012-9658(2003)084[0777:eafrpa]2.0.co;2

Abstract

We describe an approach for estimating occupancy rate or the proportion of area occupied when heterogeneity in detection probability exists as a result of variation in abundance of the organism under study. The key feature of such problems, which we exploit, is that variation in abundance induces variation in detection probability. Thus, heterogeneity in abundance can be modeled as heterogeneity in detection probability. Moreover, this linkage between heterogeneity in abundance and heterogeneity in detection probability allows one to exploit a heterogeneous ...

 

BIOMOD - A platform for ensemble forecasting of species distributions

  
Ecography, Vol. 32, No. 3. (1 June 2009), pp. 369-373, https://doi.org/10.1111/j.1600-0587.2008.05742.x

Abstract

BIOMOD is a computer platform for ensemble forecasting of species distributions, enabling the treatment of a range of methodological uncertainties in models and the examination of species-environment relationships. BIOMOD includes the ability to model species distributions with several techniques, test models with a wide range of approaches, project species distributions into different environmental conditions (e.g. climate or land use change scenarios) and dispersal functions. It allows assessing species temporal turnover, plot species response curves, and test the strength of species interactions ...

 

Species’ geographic ranges and distributional limits: pattern analysis and statistical issues

  
Oikos, Vol. 108, No. 1. (January 2005), pp. 7-17, https://doi.org/10.1111/j.0030-1299.2005.13146.x

Abstract

With the increasing concern about species conservation, a need exists for quantitaive characterization of species' geographic range and their borders. In this paper, we survey tools appropriate for the quantification of static spatial patterns related to geographical ranges and their borders. We then build on these static methods to consider the problem of changes in geographic range through time. Methods discussed are illustrated using lark sparrow data from the North American Breeding Bird Survey. While there is no such thing as ...

 

Would climate change drive species out of reserves? An assessment of existing reserve-selection methods

  
Global Change Biology, Vol. 10, No. 9. (September 2004), pp. 1618-1626, https://doi.org/10.1111/j.1365-2486.2004.00828.x

Abstract

Concern for climate change has not yet been integrated in protocols for reserve selection. However if climate changes as projected, there is a possibility that current reserve-selection methods might provide solutions that are inadequate to ensure species' long-term persistence within reserves. We assessed, for the first time, the ability of existing reserve-selection methods to secure species in a climate-change context. Six methods using a different combination of criteria (representation, suitability and reserve clustering) are compared. The assessment is carried out using ...

 

Adaptation, migration or extirpation: climate change outcomes for tree populations

  
Evolutionary Applications, Vol. 1, No. 1. (1 February 2008), pp. 95-111, https://doi.org/10.1111/j.1752-4571.2007.00013.x

Abstract

Species distribution models predict a wholesale redistribution of trees in the next century, yet migratory responses necessary to spatially track climates far exceed maximum post-glacial rates. The extent to which populations will adapt will depend upon phenotypic variation, strength of selection, fecundity, interspecific competition, and biotic interactions. Populations of temperate and boreal trees show moderate to strong clines in phenology and growth along temperature gradients, indicating substantial local adaptation. Traits involved in local adaptation appear to be the product of small ...

 

Poisson point process models solve the “pseudo-absence problem” for presence-only data in ecology

  
The Annals of Applied Statistics, Vol. 4, No. 3. (September 2010), pp. 1383-1402, https://doi.org/10.1214/10-aoas331

Abstract

Presence-only data, point locations where a species has been recorded as being present, are often used in modeling the distribution of a species as a function of a set of explanatory variables—whether to map species occurrence, to understand its association with the environment, or to predict its response to environmental change. Currently, ecologists most commonly analyze presence-only data by adding randomly chosen “pseudo-absences” to the data such that it can be analyzed using logistic regression, an approach which has weaknesses in ...

 

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 ...

 

Vergleichende Chorologie der Zentraleuropäischen Flora - Band III

  
(1992)
 

Vergleichende Chorologie der Zentraleuropäischen Flora - Band I

  
(1965)
 

Distribution ranges of trees and shrubs of USSR, vol. 3

  
(1986)

Abstract

(In Russian) ...

 

Distribution ranges of trees and shrubs of USSR, vol. 2

  
(1980)

Abstract

(In Russian) ...

 

Distribution ranges of trees and shrubs of USSR, vol. 1

  
(1977)

Abstract

(In Russian) ...

 

Atlas of United States trees, volume 4, minor Eastern hardwoods

  
(1977)

Abstract

Maps of the ranges of tree species in North America compiled by Elbert Little, of the U.S. Department of Agriculture, Forest Service, and others (see references below) were digitized for use in USGS' vegetation-climate modeling studies. These digital map files are available here for download. Updated versions of some of these maps are also available from the U.S. Forest Service Forest Inventory Analysis program. The maps are available in ArcView® shapefile format. Geographic ranges are represented as polygons. There is one shapefile ...

 

Atlas of United States trees, volume 3, minor Western hardwoods

  
(1976)

Abstract

Maps of the ranges of tree species in North America compiled by Elbert Little, of the U.S. Department of Agriculture, Forest Service, and others (see references below) were digitized for use in USGS' vegetation-climate modeling studies. These digital map files are available here for download. Updated versions of some of these maps are also available from the U.S. Forest Service Forest Inventory Analysis program. The maps are available in ArcView® shapefile format. Geographic ranges are represented as polygons. There is one shapefile ...

 

The woody plants of Korea

  
(2015)

Abstract

[Excerpt] [\n] [...] [\n] Korean Woody flora was written to familiarize naturalists, forestry professionals, students, and amateurs with the trees of Korea. This eflora is produced to meet a growing demand for information on the identification and characteristics of Korean trees in the light of new knowledge and updated information. This flora is based on the broader sense. [\n] In this eflora photographs, maps, literatures, and many drawings are provided, and features useful for identification of the tree species are emphasized. We were ...

 

Structure of Alnus fruticosa Rupr. s. l. and its relationships with other taxa of subgenus Alnobetula (Ehrhart) Peterman

  
Contemporary Problems of Ecology In Contemporary Problems of Ecology, Vol. 2, No. 6. (1 December 2009), pp. 601-610, https://doi.org/10.1134/s1995425509060186

Abstract

The reliability of morphological parameters of Alnus fruticosa s. l. on the territory of Asian Russia was studied. It has been revealed that the species has a complex internal structure stipulated by the climatic and forest-growing conditions in different parts of the range. The results of phenotypic variability and sequences of internal transcribed spacer ITS1 of nuclear ribosomal DNA of the taxa of the subgenus Alnobetula indicate the species rank of Alnus viridis and subspecies rank of A. fruticosa, A. sinuata, ...

 

Coexisting with large carnivores: the challenge and the opportunity

  
(2009)

Abstract

[Excerpt] [\n] [...] This catalogue accompanies an exhibition of the same name that has been developed by the Large Carnivore Initiative for Europe (LCIE) which is a working group of the IUCN’s Species Survival Commission. The exhibition was funded by the European Commission’s DG Environment as part of a project entitled “Natura 2000 preparatory actions. Awareness raising campaign on large carnivores”. [\n] The objective of the exhibition is to provide some though provoking perspectives on large carnivore conservation in Europe. These perspectives stem from our combined experience as researchers, conservationists and wildlife ...

 

Zur Verbreitung, Vergesellschaftung und Einbürgerung des Götterbaumes (Ailanthus altissima [Mill.] Swingle) in Mitteleuropa

  
Tuexenia, Vol. 4 (1984)

Abstract

[German] Nach einer kurzen Übersicht über die weltweite Kultur von Ailanthus altissima werden spontane Verbreitung, Vergesellschaftung und Einbürgerung in Mitteleuropa erörtert und mit Angaben aus anderen Teilen Europas verglichen. [\n] Als entscheidender Klimafaktor für die Ausbildung der nördlichen Arealgrenze, die quer durch das Norddeutsche Tiefland verläuft, ist eine lange Vegetationsperiode mit hoher sommerlicher Wärmesumme anzusehen. Ailanthus fehlt in den kühleren Küstengebieten sowie in Gebirgen und ist in wärmeren Gebieten weitgehend an Städte gebunden. Am Beispiel von Berlin (West) konnte gezeigt werden, daß ...

 

The effect of species geographical distribution estimation methods on richness and phylogenetic diversity estimates

  
International Journal of Geographical Information Science, Vol. 26, No. 11. (1 November 2012), pp. 2097-2109, https://doi.org/10.1080/13658816.2012.717627

Abstract

Diversity assessments are widely used in various fields of knowledge and rely on good estimates of species distribution. There are several methods available to estimate species distribution and the effect of using them is not clearly understood. In this research, we assess the effect of species distributions derived from four geographical distribution estimation methods on derived species richness and phylogenetic diversity (PD). We used the following four most common approaches to determine species geographical distributions: (1) range-wide occurrences are records of ...

 

Improving the assessment and reporting on rare and endangered species through species distribution models

  
Global Ecology and Conservation, Vol. 2 (December 2014), pp. 226-237, https://doi.org/10.1016/j.gecco.2014.09.011

Abstract

Species distribution models (SDMs) are increasingly used to understand rare and endangered species distributions, as well as the environmental pressures affecting them. Detailed knowledge of their distribution is critical for reporting its conservation status, and SDMs are potential tools to provide the relevant information to conservation practitioners. In this study, we modeled the distribution of Veronica micrantha, a vulnerable plant whose conservation status has to be periodically assessed under Article 17 of the Habitats Directive. [\n] The objective was to highlight the ...

 

Influence of different species range types on the perception of macroecological patterns

  
Systematics and Biodiversity, Vol. 9, No. 2. (1 June 2011), pp. 159-170, https://doi.org/10.1080/14772000.2011.588726

Abstract

In the face of increasing availability and use of distribution data, large-scale approaches of mapping species distribution patterns have become a central component of development of large-scale conservation policies. Particularly in tropical regions and for non-vertebrate taxa, knowledge on distribution patterns at large spatial extents remains woefully limited. Datasets are often geographically and taxonomically incomplete, have presence-only character and lack abundance information. One intermediate step for the application of such data common to most approaches is the construction of species geographic ...

 

Bias in species range estimates from minimum convex polygons: implications for conservation and options for improved planning

  
Animal Conservation, Vol. 6, No. 1. (February 2003), pp. 19-28, https://doi.org/10.1017/s1367943003003044

Abstract

Minimum convex polygons (convex hulls) are an internationally accepted, standard method for estimating species' ranges, particularly in circumstances in which presence-only data are the only kind of spatially explicit data available. One of their main strengths is their simplicity. They are used to make area statements and to assess trends in occupied habitat, and are an important part of the assessment of the conservation status of species. We show by simulation that these estimates are biased. The bias increases with sample ...

 

A new record of Betula litwinowii (Betulaceae) and a review of the geographical distribution of the genus Betula L. in Iran

  
Iranian Journal of Botany, Vol. 16, No. 2. (2010), pp. 237-241

Abstract

Betula litwinowii Doluch., discovered from northern Iran, is reported as a new record for the flora of Iran. Morphological characteristics of this species are compared to its closest relative, Betula pendula Roth. In addition, the geographical distribution of these two taxa in Iran and adjacent regions is discussed. ...

 

The relationship between potential solar radiation and spruce bark beetle catches in pheromone traps

  
Annals of Forest Research, Vol. 55, No. 2. (2012), pp. 243-252

Abstract

We analysed the relationship between the amount of potential solar radiation and spruce bark beetle Ips typographus (L.) catches in pheromone traps in an unmanaged nature reserve in the Carpathians (middle Slovakia region), from 2006 through 2009. This relationship was analysed under outbreak conditions. The number of traps varied in different years from 70 to 92. The traps were installed in spruce-forest-dominated stands affected by a windstorm in 2004. A GPS device was used to mark the position of the pheromone ...

 

Atlas of Woody Plants in China

  
In Atlas of Woody Plants in China (2011), https://doi.org/10.1007/978-3-642-15017-3
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