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Selection: with tag biodiversity [at least 200 articles] 

 

Tree diversity reduces pest damage in mature forests across Europe

  
Biology Letters, Vol. 12, No. 4. (27 April 2016), 20151037, https://doi.org/10.1098/rsbl.2015.1037

Abstract

Forest pest damage is expected to increase with global change. Tree diversity could mitigate this impact, but unambiguous demonstration of the diversity–resistance relationship is lacking in semi-natural mature forests. We used a network of 208 forest plots sampled along two orthogonal gradients of increasing tree species richness and latitudes to assess total tree defoliation in Europe. We found a positive relationship between tree species richness and resistance to insect herbivores: overall damage to broadleaved species significantly decreased with the number of ...

 

Effects of habitat disturbance on tropical forest biodiversity

  
Proceedings of the National Academy of Sciences, Vol. 114, No. 23. (06 June 2017), pp. 6056-6061, https://doi.org/10.1073/pnas.1611855114

Abstract

[Significance] Biologists believe that a major mass extinction is happening in the tropics. Destruction of forests is a key reason. However, there are no solid predictions of the percentage of species that will go extinct as more and more forests are disturbed. This paper provides estimates based on extrapolating the respective numbers of species in disturbed and undisturbed habitats. It uses a large global database of species inventories at particular sites. Trees and 10 groups of animals are analyzed. All the disturbed ...

 

Beyond pairwise mechanisms of species coexistence in complex communities

  
Nature, Vol. 546, No. 7656. (31 May 2017), pp. 56-64, https://doi.org/10.1038/nature22898

Abstract

The tremendous diversity of species in ecological communities has motivated a century of research into the mechanisms that maintain biodiversity. However, much of this work examines the coexistence of just pairs of competitors. This approach ignores those mechanisms of coexistence that emerge only in diverse competitive networks. Despite the potential for these mechanisms to create conditions under which the loss of one competitor triggers the loss of others, we lack the knowledge needed to judge their importance for coexistence in nature. ...

 

Multitrait successional forest dynamics enable diverse competitive coexistence

  
Proceedings of the National Academy of Sciences, Vol. 114, No. 13. (28 March 2017), pp. E2719-E2728, https://doi.org/10.1073/pnas.1610206114

Abstract

[Significance] Walking through any forest, one is struck by the variety of plant forms coexisting. Given that all plants compete for the same basic resources, why is there not a single winner? Our study shows that when key ingredients common to all forests are accounted for—including disturbance events, competition for light, and two widely observed trait-based tradeoffs—models of niche differentiation predict forests of considerably greater diversity than was previously thought possible. In particular, our model accurately predicts the proliferation of species occupying ...

 

Intraspecific trait variation across scales: implications for understanding global change responses

  
Global Change Biology, Vol. 22, No. 1. (January 2016), pp. 137-150, https://doi.org/10.1111/gcb.13000

Abstract

Recognition of the importance of intraspecific variation in ecological processes has been growing, but empirical studies and models of global change have only begun to address this issue in detail. This review discusses sources and patterns of intraspecific trait variation and their consequences for understanding how ecological processes and patterns will respond to global change. We examine how current ecological models and theories incorporate intraspecific variation, review existing data sources that could help parameterize models that account for intraspecific variation in ...

 

Individuals and the variation needed for high species diversity in forest trees

  
Science, Vol. 327, No. 5969. (25 February 2010), pp. 1129-1132, https://doi.org/10.1126/science.1183506

Abstract

In the past, explanations for high species diversity have been sought at the species level. Theory shows that coexistence requires substantial differences between species, but species-level data rarely provide evidence for such differences. Using data from forests in the southeastern United States, I show here that variation evident at the individual level provides for coexistence of large numbers of competitors. Variation among individuals within populations allows species to differ in their distributions of responses to the environment, despite the fact that ...

 

Resolving the biodiversity paradox

  
Ecology Letters, Vol. 10, No. 8. (August 2007), pp. 647-659, https://doi.org/10.1111/j.1461-0248.2007.01041.x

Abstract

The paradox of biodiversity involves three elements, (i) mathematical models predict that species must differ in specific ways in order to coexist as stable ecological communities, (ii) such differences are difficult to identify, yet (iii) there is widespread evidence of stability in natural communities. Debate has centred on two views. The first explanation involves tradeoffs along a small number of axes, including ‘colonization-competition’, resource competition (light, water, nitrogen for plants, including the ‘successional niche’), and life history (e.g. high-light growth vs. ...

 

Multiple dimensions of climate change and their implications for biodiversity

  
Science, Vol. 344, No. 6183. (01 May 2014), pp. 1247579-1247579, https://doi.org/10.1126/science.1247579

Abstract

[Structured Abstract] [::Background] Changes in Earth’s climate over time can be measured in many ways. The different metrics available represent alternative dimensions of climate change, each with distinct implications for biodiversity conservation and other sectors. However, this diversity is rarely recognized. At any given locality, average temperature or precipitation can increase or decrease, extreme values can become more intense or frequent, and the timing of specific climatic events can shift. At the same time, climatic conditions are redistributed at broader spatial extents. Across ...

 

Strengthening protected areas for biodiversity and ecosystem services in China

  
Proceedings of the National Academy of Sciences, Vol. 114, No. 7. (14 February 2017), pp. 1601-1606, https://doi.org/10.1073/pnas.1620503114

Abstract

[Significance] Following severe environmental degradation from rapid economic development, China is now advancing policies to secure biodiversity and ecosystem services. We report the first nationwide assessment, showing that protected areas (PAs) are not well delineated to protect either biodiversity or key ecosystem services. This serious deficiency exists in many countries. We propose creating a national park system in China to help guide development along a path of green growth, improving the well-being of both people and nature. This involves establishing new, strictly ...

 

Viewing forests through the lens of complex systems science

  
Ecosphere, Vol. 5, No. 1. (January 2014), art1, https://doi.org/10.1890/es13-00182.1

Abstract

Complex systems science provides a transdisciplinary framework to study systems characterized by (1) heterogeneity, (2) hierarchy, (3) self-organization, (4) openness, (5) adaptation, (6) memory, (7) non-linearity, and (8) uncertainty. Complex systems thinking has inspired both theory and applied strategies for improving ecosystem resilience and adaptability, but applications in forest ecology and management are just beginning to emerge. We review the properties of complex systems using four well-studied forest biomes (temperate, boreal, tropical and Mediterranean) as examples. The lens of complex systems ...

 

Mediterranean habitat loss under future climate conditions: assessing impacts on the Natura 2000 protected area network

  
Applied Geography, Vol. 75 (2016), pp. 83-92, https://doi.org/10.1016/j.apgeog.2016.08.003

Abstract

[Highlights] [::] The Mediterranean climate domain is projected to loss 11–25% of its current extent. [::] Projected losses of the Mediterranean climate are due to shifts of the arid domain. [::] The Mediterranean domain is projected to shift by 53–121% of its current size. [::] These changes are projected to affect 15–23% of the Mediterranean Natura 2000 sites. [Abstract] The Mediterranean basin is a global hotspot of biological diversity and the most rich biodiversity region in Europe. Nevertheless, climate-driven habitat loss is one of the most serious ...

 

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 ...

 

Climate change, habitat loss, protected areas and the climate adaptation potential of species in Mediterranean ecosystems worldwide

  
PLOS ONE, Vol. 4, No. 7. (29 July 2009), e6392, https://doi.org/10.1371/journal.pone.0006392

Abstract

Mediterranean climate is found on five continents and supports five global biodiversity hotspots. Based on combined downscaled results from 23 atmosphere-ocean general circulation models (AOGCMs) for three emissions scenarios, we determined the projected spatial shifts in the mediterranean climate extent (MCE) over the next century. Although most AOGCMs project a moderate expansion in the global MCE, regional impacts are large and uneven. The median AOGCM simulation output for the three emissions scenarios project the MCE at the end of the 21st ...

 

Potential impact of climatic change on the distribution of forest herbs in Europe

  
Ecography, Vol. 27, No. 3. (June 2004), pp. 366-380, https://doi.org/10.1111/j.0906-7590.2004.03823.x

Abstract

The aim of this study is to evaluate the possible consequences of climate change on a representative sample of forest herbs in Europe. A fuzzy climatic envelope was used to predict the location of suitable climatic conditions under two climatic change scenarios. Expected consequences in terms of lost and gained range size and shift in distribution for 26 forest herbs were estimated. These results were combined in an Index of Predicted Range Change for each species. Finally, the effects of habitat ...

 

Integration of ecological and socio-economic factors to assess global vulnerability to wildfire

  
Global Ecology and Biogeography, Vol. 23, No. 2. (2014), pp. 245-258, https://doi.org/10.1111/geb.12095

Abstract

[Aim] This paper presents a map of global fire vulnerability, estimating the potential damage of wildland fires to global ecosystems. [Location] Global scale at 0.5° grid resolution. [Methods] Three vulnerability factors were considered: ecological richness and fragility, provision of ecosystem services and value of houses in the wildland–urban interface. Each of these factors was estimated from existing global databases. Ecological values were estimated from biodiversity relevance, conservation status and fragmentation based on Olson's ecoregions. The ecological regeneration delay was estimated from adaptation to fires and soil ...

 

Europe's biodiversity avoids fatal setback

  
Science, Vol. 355, No. 6321. (13 January 2017), pp. 140-140, https://doi.org/10.1126/science.aam6200

Abstract

[Excerpt] [...] The 1979 Birds Directive and 1992 Habitats Directive have proven instrumental for European nature conservation, contributing to the improved conservation status of many species. Today, more than 1500 species are protected under the Directives, and 18% of the European Union's land area and 6% of its oceans form part of the Natura 2000 network of protected areas. For these species and sites, the Directives impose legally binding, enforceable obligations on EU member states, as well as limits on potentially ...

 

Harmonization tests

  
In National forest inventories: contributions to forest biodiversity assessments, Vol. 20 (2011), pp. 121-190, https://doi.org/10.1007/978-94-007-0482-4_5

Abstract

Chapter 5 reports the results of testing the proposed procedures for harmonizing estimates of indicators for six of the seven essential features of forest biodiversity. Twenty indicators were tested using data from the common database.In general, positive results were obtained for forest categories, forest structure, forest age, deadwood, and naturalness; the results were less positive for ground vegetation because of the considerable differences in definitions and data acquisition methods. Of importance is, that the test focused on assessing harmonization procedures rather ...

 

Predictors of elevational biodiversity gradients change from single taxa to the multi-taxa community level

  
Nature Communications, Vol. 7 (22 December 2016), 13736, https://doi.org/10.1038/ncomms13736

Abstract

The factors determining gradients of biodiversity are a fundamental yet unresolved topic in ecology. While diversity gradients have been analysed for numerous single taxa, progress towards general explanatory models has been hampered by limitations in the phylogenetic coverage of past studies. By parallel sampling of 25 major plant and animal taxa along a 3.7 km elevational gradient on Mt. Kilimanjaro, we quantify cross-taxon consensus in diversity gradients and evaluate predictors of diversity from single taxa to a multi-taxa community level. While single ...

 

Forest value: more than commercial

  
Science, Vol. 354, No. 6319. (23 December 2016), pp. 1541-1541, https://doi.org/10.1126/science.aal2499

Abstract

[Excerpt] [...] Postulating a positive relation between tree species richness and commercial value could potentially have adverse environmental consequences. For example, concluding that megadiverse tropical forests have innate commercial value would make it unnecessary to supplement this supposed value with rewards for landowners who preserve their native forests. Landowners might then continue to convert such forests to profitable monocultures [...] which have real commercial value. Species-rich forests indeed have an extremely high conservation and ecosystem service value, but their commercial value ...

 

Forest value: more than commercial - Response

  
Science, Vol. 354, No. 6319. (23 December 2016), pp. 1541-1542, https://doi.org/10.1126/science.aal2612

Abstract

[Excerpt] Paul and Knoke address the commercial value and profitability of forest biodiversity, which differs fundamentally from the economic value that we outlined in our Research Article. [...] Our estimates pertain to the sole contribution of tree species diversity, as it exists today, to global forest productivity, from which the economic value accrues. Our analysis—which includes nonmarket values not commonly captured in commercial forestry but excludes the contribution of forest biodiversity to carbon sequestration, wildlife habitat, and aesthetic and cultural values—reflects ...

 

Land-use intensification causes multitrophic homogenization of grassland communities

  
Nature (30 November 2016), https://doi.org/10.1038/nature20575

Abstract

Land-use intensification is a major driver of biodiversity loss1, 2. Alongside reductions in local species diversity, biotic homogenization at larger spatial scales is of great concern for conservation. Biotic homogenization means a decrease in β-diversity (the compositional dissimilarity between sites). Most studies have investigated losses in local (α)-diversity1, 3 and neglected biodiversity loss at larger spatial scales. Studies addressing β-diversity have focused on single or a few organism groups (for example, ref. 4), and it is thus unknown whether land-use intensification ...

 

Dam-building threatens Mekong fisheries

  
Science, Vol. 354, No. 6316. (02 December 2016), pp. 1084-1085, https://doi.org/10.1126/science.354.6316.1084

Abstract

[Excerpt] Every April, the pa nyawn catfish would make their way up the Mekong River to spawn, crowding through a narrow channel that skirts Khone Falls in southern Laos. Villagers netted the thumb-sized fish by the hundreds of thousands. Then, in 2014, work started on Don Sahong Dam, which straddles the channel. Although the dam won't be completed for another 2 years, construction has already cut off the migration and destroyed the fishing sites, says Zeb Hogan, a biologist with the ...

 

Vegetation response to a short interval between high-severity wildfires in a mixed-evergreen forest

  
Journal of Ecology, Vol. 97, No. 1. (January 2009), pp. 142-154, https://doi.org/10.1111/j.1365-2745.2008.01456.x

Abstract

[::] Variations in disturbance regime strongly influence ecosystem structure and function. A prominent form of such variation is when multiple high-severity wildfires occur in rapid succession (i.e. short-interval (SI) severe fires, or ‘re-burns’). These events have been proposed as key mechanisms altering successional rates and pathways. [::] We utilized a natural experiment afforded by two overlapping wildfires occurring within a 15-year interval in forests of the Klamath–Siskiyou Mountains, Oregon (USA). We tested for unique effects of a SI fire (15-year interval before ...

 

Climate change impact modelling needs to include cross-sectoral interactions

  
Nature Climate Change, Vol. 6, No. 9. (23 May 2016), pp. 885-890, https://doi.org/10.1038/nclimate3039

Abstract

Climate change impact assessments often apply models of individual sectors such as agriculture, forestry and water use without considering interactions between these sectors. This is likely to lead to misrepresentation of impacts, and consequently to poor decisions about climate adaptation. However, no published research assesses the differences between impacts simulated by single-sector and integrated models. Here we compare 14 indicators derived from a set of impact models run within single-sector and integrated frameworks across a range of climate and socio-economic scenarios ...

 

Positive biodiversity-productivity relationship predominant in global forests

  
Science, Vol. 354, No. 6309. (14 October 2016), aaf8957, https://doi.org/10.1126/science.aaf8957

Abstract

[Abstract] The biodiversity-productivity relationship (BPR) is foundational to our understanding of the global extinction crisis and its impacts on ecosystem functioning. Understanding BPR is critical for the accurate valuation and effective conservation of biodiversity. Using ground-sourced data from 777,126 permanent plots, spanning 44 countries and most terrestrial biomes, we reveal a globally consistent positive concave-down BPR, showing that continued biodiversity loss would result in an accelerating decline in forest productivity worldwide. The value of biodiversity in maintaining commercial forest productivity alone—US$166 billion ...

 

The trouble with negative emissions

  
Science, Vol. 354, No. 6309. (14 October 2016), pp. 182-183, https://doi.org/10.1126/science.aah4567

Abstract

In December 2015, member states of the United Nations Framework Convention on Climate Change (UNFCCC) adopted the Paris Agreement, which aims to hold the increase in the global average temperature to below 2°C and to pursue efforts to limit the temperature increase to 1.5°C. The Paris Agreement requires that anthropogenic greenhouse gas emission sources and sinks are balanced by the second half of this century. Because some nonzero sources are unavoidable, this leads to the abstract concept of “negative emissions,” the ...

 

An Anthropocene map of genetic diversity

  
Science, Vol. 353, No. 6307. (29 September 2016), pp. 1532-1535, https://doi.org/10.1126/science.aaf4381

Abstract

The Anthropocene is witnessing a loss of biodiversity, with well-documented declines in the diversity of ecosystems and species. For intraspecific genetic diversity, however, we lack even basic knowledge on its global distribution. We georeferenced 92,801 mitochondrial sequences for >4500 species of terrestrial mammals and amphibians, and found that genetic diversity is 27% higher in the tropics than in nontropical regions. Overall, habitats that are more affected by humans hold less genetic diversity than wilder regions, although results for mammals are sensitive ...

 

Biodiversity and ecosystem services: a multilayered relationship

  
Trends in Ecology & Evolution, Vol. 27, No. 1. (1 January 2012), pp. 19-26, https://doi.org/10.1016/j.tree.2011.08.006

Abstract

The relationship between biodiversity and the rapidly expanding research and policy field of ecosystem services is confused and is damaging efforts to create coherent policy. Using the widely accepted Convention on Biological Diversity definition of biodiversity and work for the UK National Ecosystem Assessment we show that biodiversity has key roles at all levels of the ecosystem service hierarchy: as a regulator of underpinning ecosystem processes, as a final ecosystem service and as a good that is subject to valuation, whether ...

 

Temperate and boreal rainforest relicts of Europe

  
In Temperate and Boreal Rainforests of the World: Ecology and Conservation (2011), pp. 154-180, https://doi.org/10.5822/978-1-61091-008-8_6
Keywords: abies-alba   acer-pseudoplatanus   aconitum-spp   alces-alces   alnus-glutinosa   alnus-incana   anemone-trifolia   aquila-chrysaetos   arthonia-leucopellaea   asplenium-scolopendrium   athyrium-filix-femina   balkan-peninsula   betula-pendula   betula-pubescens   biodiversity   bison-bonasus   boreal-forests   buteo-buteo   calluna-vulgaris   canis-lupus   capreolus-capreolus   carduus-personata   central-europe   cervus-elaphus   cervus-nippon   cicerbita-alpine   conservation   cortusa-matthioli   corylus-avellana   dryocopus-martius   dryopteris-carthusiana   dryopteris-dilatata   dryopteris-spp   endangered-species   epimedium-alpinum   euphorbia-austriaca   europe   fagus-sylvatica   felis-silvestris   forest-resources   fragmentation   fraxinus-excelsior   grazing   gymnocarpium-dryopteris   habitat-conservation   hacquetia-epipactis   hotspot   ilex-aquifolium   lagopus-muta   lamium-orvala   larix-eurolepis   lichens   lobaria-amplissima   lobaria-scrobiculata   lunaria-rediviva   lynx-lynx   lyrurus-tetrix   meles-meles   milvus-milvus   norway   omphalodes-verna   picea-abies   picea-sitchensis   pinus-contorta   pleurospermum-austriacum   populus-tremula   prunus-avium   pseudotsuga-menziesii   pyrenula-laevigata   quercus-petraea   quercus-robur   quercus-spp   rainforest   rhododendron-ponticum   rupicapra-rupicapra   salix-caprea   salix-spp   sanicula-europaea   saxifraga-rotundifolia   sorbus-aucuparia   strix-uralensis   sus-scrofa   taxus-baccata   temperate-forests   tetrao-urogallus   thalictrum-aquilegifolium   thelotrema-lepadinum   tilia-cordata   tilia-platyphyllos   ulmus-glabra   vaccinium-myrtillus  

Abstract

European temperate rainforests are disjunctly distributed from ~45° to 69°N latitude, where they are influenced by maritime climates (see figure 6-1). Storms originating in the North Atlantic and the Mediterranean (Balkans) provide for mild winters, cool summers, and adequate precipitation to sustain rainforests throughout the year. Due to extensive deforestation, however, today’s European rainforests are mere fragments of primeval rainforests. A reminder of a bygone era when rainforests flourished, they are barely hanging on as contemporary rainforest relicts (see box 6-1). ...

 

Colchic and Hyrcanian forests of the Caucasus: similarities, differences and conservation status

  
Flora Mediterranea, Vol. 25, No. Special Issue. (26 November 2015), https://doi.org/10.7320/flmedit25si.185
Keywords: abies-nordmanniana   acer-insigne   acer-velutinum   albizzia-julibrissin   alnus-barbata   alnus-subcordata   ancient-forest   ancient-forest-plant-species   arachne-colchica   betula-litwinowii   betula-medwedewii   biodiversity   buxus-colchicus   buxus-hyrcana   carpinus-caucasica   castanea-sativa   caucasus   colchic-region   comparison   corylus-colchica   danae-racemosa   daphne-alboviana   daphne-pontica   dioscorea-caucasica   diospyros-lotus   ecological-zones   ecosystem-conservation   epigaea-gaultherioides   fagus-orientalis   forest-resources   gleditcia-caspica   hedera-colchica   hedera-pastuchovii   hypericum-androsaemum   hypericum-inodorum   hyrcanian-region   ilex-colchica   ilex-hyrcana   laurocerasus-officinalis   parrotia-persica   philadelphus-caucasicus   picea-orientalis   protected-areas   protection   pterocarya-fraxinifolia   quercus-castaneifolia   quercus-hartwissiana   quercus-imeretina   quercus-macranthera   quercus-pontica   rainforest   rhamnus-imeretina   rhododendron-caucasicum   rhododendron-ponticum   rhododendron-smirnowii   rhododendron-ungernii   ruscus-colchicus   ruscus-hyrcanus   sorbus-aucuparia   sorbus-caucasigena   sorbus-subfusca   species-richness   staphylea-colchica   temperate-forests   vaccinium-arctostaphylos   viburnum-orientale   zelkova-carpinifolia  

Abstract

Along with high degree of vascular plant endemism (more than 25%) the existence of two refugia of the Tertiary flora – Colchic and Hyrcanian – are the most unique features of the Caucasus ecoregion. Likewise, Colchic and Hyrcanian forests are classified as temperate rainforests.There are certain physical-geographical and biological similarities and even more differences between Colchic and Hyrcanian regions, reflected on compositions of flora, types of vegetation zonation, as well as spectrums of vegetation formations. An “individualities” of these two unique nature phenomena definethe necessity of their ...

 

Bioeconomy - an emerging meta-discourse affecting forest discourses?

  
Scandinavian Journal of Forest Research, Vol. 29, No. 4. (19 May 2014), pp. 386-393, https://doi.org/10.1080/02827581.2014.920044

Abstract

The term bioeconomy and closely related notions like bio-based economy or knowledge-based bioeconomy (KBBE) are increasingly used by scientists and politicians in the last years. It does therefore have the potential of becoming an influential global discourse. Its role is however so far unclear. The general assumption that guides this paper is that discourses, resulting ideas and arguments are generally said to have performative power. They shape actors' views, influence their behaviour, impact on their beliefs and interests and can cause ...

 

Synergies and trade-offs between ecosystem service supply, biodiversity, and habitat conservation status in Europe

  
Biological Conservation, Vol. 155 (October 2012), pp. 1-12, https://doi.org/10.1016/j.biocon.2012.06.016

Abstract

[Abstract] In the European Union (EU) efforts to conserve biodiversity have been consistently directed towards the protection of habitats and species through the designation of protected areas under the Habitats Directive (92/43/ECC). These biodiversity conservation efforts also have the potential to maintain or improve the supply of ecosystem services; however, this potential has been poorly explored across Europe. This paper reports on a spatial assessment of the relationships between biodiversity, ecosystem services, and conservation status of protected habitats at European scale. We ...

 

The role of biodiversity in supporting ecosystem services in Natura 2000 sites

  
Ecological Indicators, Vol. 24 (January 2013), pp. 12-22, https://doi.org/10.1016/j.ecolind.2012.05.016

Abstract

[Abstract] The recent discussion about the relationships between biodiversity and ecosystem services also raises the question as to whether the argumentative basis for nature conservation can be strengthened by emphasizing the role of species and habitats in supporting ecosystem services. A literature survey shows that mainly socio-cultural and some regulating services are dependent on particular species, groups of species, or habitat types, while many other services, especially those related to provisioning, rely more heavily on vegetation structures and land cover. These findings ...

 

Applicazione del modello dimostrativo di valutazione qualitativa e quantitativa dei servizi ecosistemici nei siti pilota - Parte 1: quantificazione dei servizi ecosistemici

  
(2015)

Abstract

[Excerpt: Introduzione] Sulla base della valutazione qualitativa degli habitat e della copertura, del questionario e degli incontri con gli stakeholder sono stati selezionati 2-3 servizi ecosistemici (SE) per ogni sito pilota LIFE+ MGN [...]. Per ognuno di questi SE viene riportato in questo report il risultato della quantifiazione biofisica e monetaria. [...] [:English version (Ed.): Introduction] For each pilot site LIFE+ MGN, 2-3 ecosystem services (ES) have been selected. The selection considered the qualitative assessment of habitat and cover; the survey and the ...

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Addition of multiple limiting resources reduces grassland diversity

  
Nature, Vol. 537, No. 7618. (24 August 2016), pp. 93-96, https://doi.org/10.1038/nature19324

Abstract

Niche dimensionality provides a general theoretical explanation for biodiversitymore niches, defined by more limiting factors, allow for more ways that species can coexist. Because plant species compete for the same set of limiting resources, theory predicts that addition of a limiting resource eliminates potential trade-offs, reducing the number of species that can coexist. Multiple nutrient limitation of plant production is common and therefore fertilization may reduce diversity by reducing the number or dimensionality of belowground limiting factors. At the same time, ...

 

Ecology: more is less

  
Nature, Vol. 537, No. 7618. (31 August 2016), pp. 42-42, https://doi.org/10.1038/537042a

Abstract

[Excerpt] Plants compete for the same resources, such as nutrients, light and water. Because these resources are often limited, the coexistence of plant species requires the creation of trade-offs in resource use. In this issue, Harpole et al. report that increasing a limited nutrient in grassland can eliminate these potential trade-offs, reducing overall species diversity (W. S. Harpole et al. Nature 537, 93–96; 2016). [\n] The authors considered 45 grassland sites across 6 continents, and measured species diversity in response to various ...

 

Grassland species loss resulting from reduced niche dimension

  
Nature, Vol. 446, No. 7137. (25 March 2007), pp. 791-793, https://doi.org/10.1038/nature05684

Abstract

Intact ecosystems contain large numbers of competing but coexisting species. Although numerous alternative theories have provided potential explanations for this high biodiversity, there have been few field experiments testing between these theories. In particular, theory predicts that higher diversity of coexisting competitors could result from greater niche dimensionality1, for example larger numbers of limiting resources or factors. Alternatively, diversity could be independent of niche dimensionality because large numbers of species can coexist when limited by just one or two factors if ...

 

Competition for light causes plant biodiversity loss after eutrophication

  
Science, Vol. 324, No. 5927. (30 April 2009), pp. 636-638, https://doi.org/10.1126/science.1169640

Abstract

Human activities have increased the availability of nutrients in terrestrial and aquatic ecosystems. In grasslands, this eutrophication causes loss of plant species diversity, but the mechanism of this loss has been difficult to determine. Using experimental grassland plant communities, we found that addition of light to the grassland understory prevented the loss of biodiversity caused by eutrophication. There was no detectable role for competition for soil resources in diversity loss. Thus, competition for light is a major mechanism of plant diversity ...

 

Community genetics: resource addition has opposing effects on genetic and species diversity in a 150-year experiment

  
Ecology Letters, Vol. 12, No. 2. (February 2009), pp. 165-170, https://doi.org/10.1111/j.1461-0248.2008.01273.x

Abstract

We used the Park Grass Experiment, begun in 1856, to test alternative hypotheses about the relationship between genetic diversity and plant species diversity. The niche variation hypothesis predicts that populations with few interspecific competitors and hence broader niches are expected to contain greater genetic diversity. The coexistence hypothesis predicts that genetic diversity within species favours coexistence among species and therefore species and genetic diversity should be positively correlated. Amplified Fragment Length Polymorphism (AFLP) markers were used to measure the genetic diversity ...

 

Sixteen years of change in the global terrestrial human footprint and implications for biodiversity conservation

  
Nature Communications, Vol. 7 (23 August 2016), 12558, https://doi.org/10.1038/ncomms12558

Abstract

Human pressures on the environment are changing spatially and temporally, with profound implications for the planet’s biodiversity and human economies. Here we use recently available data on infrastructure, land cover and human access into natural areas to construct a globally standardized measure of the cumulative human footprint on the terrestrial environment at 1 km2 resolution from 1993 to 2009. We note that while the human population has increased by 23% and the world economy has grown 153%, the human footprint has increased by just 9%. Still, 75% ...

 

Has land use pushed terrestrial biodiversity beyond the planetary boundary? A global assessment

  
Science, Vol. 353, No. 6296. (14 July 2016), pp. 288-291, https://doi.org/10.1126/science.aaf2201

Abstract

[Crossing “safe” limits for biodiversity loss] The planetary boundaries framework attempts to set limits for biodiversity loss within which ecological function is relatively unaffected. Newbold et al. present a quantitative global analysis of the extent to which the proposed planetary boundary has been crossed (see the Perspective by Oliver). Using over 2 million records for nearly 40,000 terrestrial species, they modeled the response of biodiversity to land use and related pressures and then estimated, at a spatial resolution of ∼1 km2, the ...

 

Wildlife comeback in Europe - The recovery of selected mammal and bird species

  
(2013)

Abstract

[Executive summary] With biodiversity in continuing decline worldwide, and targets set to reduce biodiversity loss not being met, conservation successes are rare in comparison to the news on declining populations and extinctions. Wildlife in Europe is showing a variety of responses to human pressure: while certain groups are clearly in decline and require conservation attention, other wildlife species are showing resurgence from previously low levels. Understanding the mechanisms allowing this wildlife comeback is crucial to better conservation of wildlife both in Europe and across the world, if we can apply the principles underlying conservation ...

 

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 ...

 

Curbing an onslaught of 2 billion cars

  
(2016)

Abstract

Nature could soon be imperiled by twice as many vehicles and enough new roads to encircle the planet more than 600 times. [Excerpt] By 2010, our planet had reached a remarkable milestone: one billion cars—or, to be precise, one billion motorized vehicles, including cars, trucks, buses, and motorcycles but excluding off-road vehicles such as tractors and bulldozers. Of course, the overwhelming majority of these vehicles are powered by fossil fuels. And if that figure isn’t troubling enough, by 2030, it’s projected that ...

 

Anthropogenic disturbance and tree diversity in Montane Rain Forests in Chiapas, Mexico

  
Forest Ecology and Management, Vol. 154, No. 1-2. (15 November 2001), pp. 311-326, https://doi.org/10.1016/s0378-1127(00)00639-3

Abstract

We studied the influence of anthropogenic disturbance on forest structure and composition in the highly populated Montane Rain Forests of northern Chiapas, Mexico. We evaluated species richness, basal area and stem density on 81 circular plots (0.1 ha each) along a categorical disturbance gradient due to forest extraction, livestock grazing, and fires. A total of 116 tree species (>5 cm DBH) were recorded in three major forest types recognized by TWINSPAN. The three forest types were: Quercus–Podocarpus Forest (QPF), Pinus–Quercus–Liquidambar Forest (PQLF), and ...

 

Using higher-taxon richness as a surrogate for species richness: II - local applications

  
Proceedings of the Royal Society of London B: Biological Sciences, Vol. 263, No. 1376. (22 November 1996), pp. 1571-1575, https://doi.org/10.1098/rspb.1996.0230

Abstract

Recent analyses confirm that urgent attempts to catalogue the distribution of biological diversity may be facilitated by focusing at the level of genera or families rather than species. However, questions remain over the application of higher-taxon surveys to identify networks of priority areas for conservation action. Is the close spatial match between species and higher-taxon richness at global and regional scales reiterated when sites are locally distributed? How much money is saved by the higher-taxon approach? And how does using genus ...

 

Seven shortfalls that beset large-scale knowledge of biodiversity

  
Annual Review of Ecology, Evolution, and Systematics, Vol. 46, No. 1. (2015), pp. 523-549, https://doi.org/10.1146/annurev-ecolsys-112414-054400

Abstract

Ecologists and evolutionary biologists are increasingly using big-data approaches to tackle questions at large spatial, taxonomic, and temporal scales. However, despite recent efforts to gather two centuries of biodiversity inventories into comprehensive databases, many crucial research questions remain unanswered. Here, we update the concept of knowledge shortfalls and review the tradeoffs between generality and uncertainty. We present seven key shortfalls of current biodiversity data. Four previously proposed shortfalls pinpoint knowledge gaps for species taxonomy (Linnean), distribution (Wallacean), abundance (Prestonian), and evolutionary ...

 

The effect of biodiversity on tree productivity: from temperate to boreal forests

  
Global Ecology and Biogeography, Vol. 20, No. 1. (1 January 2011), pp. 170-180, https://doi.org/10.1111/j.1466-8238.2010.00592.x

Abstract

[Aim] An important issue regarding biodiversity concerns its influence on ecosystem functioning. Experimental work has led to the proposal of mechanisms such as niche complementarity. However, few attempts have been made to confirm these in natural systems, especially in forests. Furthermore, one of the most interesting unresolved questions is whether the effects of complementarity on ecosystem functioning (EF) decrease in favour of competitive exclusions over an increasing productivity gradient. Using records from permanent forest plots, we asked the following questions. (1) ...

 

Tree neighbourhood matters - Tree species composition drives diversity-productivity patterns in a near-natural beech forest

  
Forest Ecology and Management, Vol. 335 (January 2015), pp. 225-234, https://doi.org/10.1016/j.foreco.2014.09.032

Abstract

[Highlights] [::] We test tree diversity–productivity relationships in a temperate beech forest. [::] Beech and hornbeam trees grew faster in more diverse neighbourhoods. [::] Complementarity effects were driven by differences in species’ competitive strengths. [::] Small scale admixture with patches of different species promotes tree growth. [Abstract] European beech forest with a variable admixture is one of the most important forest types in Central Europe. Growing evidence has demonstrated the positive effect of increased biodiversity on vital forest ecosystem functions and services such as productivity and nutrient ...

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