Biodiversity
... 2011-2020 the United Nations Decade on Biodiversity and adopted the Strategic Plan for Biodiversity 2011-2020. The Strategy is a ten-year framework for action adopted by signatory countries in 2010 in Nagoya, Japan. It builds on the vision that “by 2050, biodiversity is valued, conserved, restored a ...
... 2011-2020 the United Nations Decade on Biodiversity and adopted the Strategic Plan for Biodiversity 2011-2020. The Strategy is a ten-year framework for action adopted by signatory countries in 2010 in Nagoya, Japan. It builds on the vision that “by 2050, biodiversity is valued, conserved, restored a ...
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... in analysing the abiotic drivers of beta diversity, it is important to disentangle the two different phenomena that can be behind beta diversity: spatial turnover and nestedness [33,34]. These phenomena are antithetical because nested patterns result from species loss across sites, while turnover pa ...
... in analysing the abiotic drivers of beta diversity, it is important to disentangle the two different phenomena that can be behind beta diversity: spatial turnover and nestedness [33,34]. These phenomena are antithetical because nested patterns result from species loss across sites, while turnover pa ...
Is Taxonomic Diversity Enough? The Role of Phylogenetic
... straddled by longer dry periods (IPCC 2007). These changes will significantly intensify the drought stress on ecological communities of the region. The predicted increase in drought stress has important concerns for ecological conservation and restoration. A large body of ecological research exists ...
... straddled by longer dry periods (IPCC 2007). These changes will significantly intensify the drought stress on ecological communities of the region. The predicted increase in drought stress has important concerns for ecological conservation and restoration. A large body of ecological research exists ...
Get PDF - Asian Myrmecology
... the composition of ant assemblages around them. Ants were extracted from litter below three common tree species, Parashorea stellata (Dipterocarpaceae), Intsia palembanica (Fabaceae) and Shorea gratissima (Dipterocarpaceae) in a 24 ha lowland rainforest plot in southern Thailand. A total of 2,257 in ...
... the composition of ant assemblages around them. Ants were extracted from litter below three common tree species, Parashorea stellata (Dipterocarpaceae), Intsia palembanica (Fabaceae) and Shorea gratissima (Dipterocarpaceae) in a 24 ha lowland rainforest plot in southern Thailand. A total of 2,257 in ...
Disentangling direct and indirect effects of experimental grassland
... Background: Plant biodiversity can affect trophic interactions in many ways, including direct bottom-up effects on insects, but is negatively affected by agricultural intensification. Grassland intensification promotes plant productivity, resulting in changes in plant community composition, and impa ...
... Background: Plant biodiversity can affect trophic interactions in many ways, including direct bottom-up effects on insects, but is negatively affected by agricultural intensification. Grassland intensification promotes plant productivity, resulting in changes in plant community composition, and impa ...
Sciences Po Rennes Model United Nations General Assembly
... Millennium Assessment team, mountain, island, and peninsula species are vulnerable to changes in weather patterns, and coastal habitats such as mangroves, coral reefs and wetlands are at risk from rising sea levels.26 In addition, marine environments and fish have already been affected by increasing ...
... Millennium Assessment team, mountain, island, and peninsula species are vulnerable to changes in weather patterns, and coastal habitats such as mangroves, coral reefs and wetlands are at risk from rising sea levels.26 In addition, marine environments and fish have already been affected by increasing ...
Leopardus jacobita, Andean Cat
... The Andean Cat has a restricted distribution, being found only in the higher elevations of the Andes moutains, in Argentina, Bolivia, Chile and Peru. In Argentina, while the average elevation of occurrence was estimated at 4,236 m (Perovic et al. 2003), it has also been found at lower elevations, wi ...
... The Andean Cat has a restricted distribution, being found only in the higher elevations of the Andes moutains, in Argentina, Bolivia, Chile and Peru. In Argentina, while the average elevation of occurrence was estimated at 4,236 m (Perovic et al. 2003), it has also been found at lower elevations, wi ...
The assembly of tropical tree communities the advances and
... community phylogenies will continue to be widely used and important particularly in the tropics, recent research has demonstrated the feasibility of utilizing three so-called ‘DNA barcode’ regions to generate molecular community phylogenies for entire tropical tree forest plots (Kress et al. 2009, 2 ...
... community phylogenies will continue to be widely used and important particularly in the tropics, recent research has demonstrated the feasibility of utilizing three so-called ‘DNA barcode’ regions to generate molecular community phylogenies for entire tropical tree forest plots (Kress et al. 2009, 2 ...
Ecological Mechanisms Underlying Arthropod Species Further
... shaping grassland systems (67). We review primary ecological mechanisms that determine species diversity of grassland arthropods, and link them to contributions from intermediate- to large-scale ecological factors acting over broad landscapes (37, 114, 121). Grasslands and savannas cover approximate ...
... shaping grassland systems (67). We review primary ecological mechanisms that determine species diversity of grassland arthropods, and link them to contributions from intermediate- to large-scale ecological factors acting over broad landscapes (37, 114, 121). Grasslands and savannas cover approximate ...
SPECIAL SECTION Hunting and Plant Community Dynamics in
... unknown for most studies, and we therefore refer to seed removal rather than seed dispersal. The seed removal ratio varied widely across species and sites (Fig. 1). This variation is caused in part by uncontrolled differences among studies in hunting intensity between protected and hunted sites. Two ...
... unknown for most studies, and we therefore refer to seed removal rather than seed dispersal. The seed removal ratio varied widely across species and sites (Fig. 1). This variation is caused in part by uncontrolled differences among studies in hunting intensity between protected and hunted sites. Two ...
Biodiversity and Ecosystem Function
... There are instances where increased biodiversity may be deleterious ...
... There are instances where increased biodiversity may be deleterious ...
Towards a food web perspective on biodiversity and ecosystem
... webs (Polis and Strong 1996, Thompson et al. 2007, Yodzis 1984) and whether the increased number of feeding links that result from omnivory increases or decreases the stability of energy flow through a food web (McCann et al. 1998, MacArthur 1955). Identifying species that represent influential nodes ...
... webs (Polis and Strong 1996, Thompson et al. 2007, Yodzis 1984) and whether the increased number of feeding links that result from omnivory increases or decreases the stability of energy flow through a food web (McCann et al. 1998, MacArthur 1955). Identifying species that represent influential nodes ...
Collapse of the world`s largest herbivores
... for grazing, a reduction in forage and water available to wild herbivores, a greater risk of disease transmission from domestic to wild species (32), and increased methane emissions (31). In central Asia, the expansion of goat grazing for cashmere wool production for international export has reduced ...
... for grazing, a reduction in forage and water available to wild herbivores, a greater risk of disease transmission from domestic to wild species (32), and increased methane emissions (31). In central Asia, the expansion of goat grazing for cashmere wool production for international export has reduced ...
Responses of Tropical Bats to Habitat Fragmentation, Logging, and
... (Struebig et al. 2015), and the synergistic effects of both processes? Simple pan- tropical meta-analyses suggest that the impacts of land-use change on mammal diversity, particularly on bats, are somewhat less severe than for other animal groups (Gibson et al. 2011). Nevertheless, such studies ca ...
... (Struebig et al. 2015), and the synergistic effects of both processes? Simple pan- tropical meta-analyses suggest that the impacts of land-use change on mammal diversity, particularly on bats, are somewhat less severe than for other animal groups (Gibson et al. 2011). Nevertheless, such studies ca ...
Biodiversity and teaching - Bertrand Pajot
... Production’s services: food, water, genetic resources, clothes, ...
... Production’s services: food, water, genetic resources, clothes, ...
Introductory Report on Nature Conservation in
... Coniferous species, largely Fir Abies alba, Spruce Picea excelsa and Mugho Pine Pinus mugo, dominate in the forests of higher altitude. Abieto-Picetum forests occupy a wide area of the mountains in northern Montenegro in the zones of Kovač, Ljubišnja, Durmitor, Sinjajevina, Krstac, Smiljevica and Ha ...
... Coniferous species, largely Fir Abies alba, Spruce Picea excelsa and Mugho Pine Pinus mugo, dominate in the forests of higher altitude. Abieto-Picetum forests occupy a wide area of the mountains in northern Montenegro in the zones of Kovač, Ljubišnja, Durmitor, Sinjajevina, Krstac, Smiljevica and Ha ...
Global ant (Hymenoptera: Formicidae) biodiversity and biogeography
... variety of key words, including (formicidae + pitfall, formicidae + litter, formicidae + transect, and formicidae + diversity) related to ant communities (the same approach initially used for the North American database). We focused on searches that included the terms "pitfall" (for pitfall traps) a ...
... variety of key words, including (formicidae + pitfall, formicidae + litter, formicidae + transect, and formicidae + diversity) related to ant communities (the same approach initially used for the North American database). We focused on searches that included the terms "pitfall" (for pitfall traps) a ...
The relationship between biodiversity and ecosystem functioning in
... ability to reduce temporal variability of these properties in a fluctuating environment. Environmental fluctuations were included in the form of sinusoidal variations in temperature or other abiotic variables on which plant and herbivore mortality rates depend. We assume that these rates have a Gaussi ...
... ability to reduce temporal variability of these properties in a fluctuating environment. Environmental fluctuations were included in the form of sinusoidal variations in temperature or other abiotic variables on which plant and herbivore mortality rates depend. We assume that these rates have a Gaussi ...
Read full study - Center for Watershed Sciences
... predicted to exacerbate extinctions in the future [7–10]. Estimates of known extinctions however, are likely gross underestimates because most groups of freshwater organisms are understudied [11]. The insular and fragmented nature of freshwater habitats, which often results in high levels of endemis ...
... predicted to exacerbate extinctions in the future [7–10]. Estimates of known extinctions however, are likely gross underestimates because most groups of freshwater organisms are understudied [11]. The insular and fragmented nature of freshwater habitats, which often results in high levels of endemis ...
L E T T E R
... In our analysis of population stability, abundances for each plot were detrended by regressing abundances against year before calculating standard deviation of detrended abundances. Detrending removed variation caused by long-term directional change in arthropod abundances that could be attributed t ...
... In our analysis of population stability, abundances for each plot were detrended by regressing abundances against year before calculating standard deviation of detrended abundances. Detrending removed variation caused by long-term directional change in arthropod abundances that could be attributed t ...
Is There a Latitudinal Gradient in the Importance of Biotic Interactions?
... Annu. Rev. Ecol. Evol. Syst. 2009.40:245-269. Downloaded from www.annualreviews.org by Dr. Diego Rodriguez on 02/23/12. For personal use only. ...
... Annu. Rev. Ecol. Evol. Syst. 2009.40:245-269. Downloaded from www.annualreviews.org by Dr. Diego Rodriguez on 02/23/12. For personal use only. ...
CHOOSING THE APPROPRIATE SCALE OF RESERVES FOR
... of ecosystems may be assessed by (a) endangerment of ecosystems (104); (b) hotspots of species diversity within ecoregions (2, 33, 121, 124, 169); (c) representation among habitat types (46, 58); or (d ) critical ecosystem functions (30, 88). It is the multitude of valued attributes of ecosystems th ...
... of ecosystems may be assessed by (a) endangerment of ecosystems (104); (b) hotspots of species diversity within ecoregions (2, 33, 121, 124, 169); (c) representation among habitat types (46, 58); or (d ) critical ecosystem functions (30, 88). It is the multitude of valued attributes of ecosystems th ...
Phylogeographic Analyses and Paleodistribution
... Although many phylogeographic studies have been conducted to analyze the impact of the ice age on species history of Northern Hemisphere mountain plants, such studies are nearly absent for plants of the Southern Hemisphere, particularly for lowland vegetation units. These species should have been pr ...
... Although many phylogeographic studies have been conducted to analyze the impact of the ice age on species history of Northern Hemisphere mountain plants, such studies are nearly absent for plants of the Southern Hemisphere, particularly for lowland vegetation units. These species should have been pr ...
Hat Hill Road Flora and Fauna
... been previously quite disturbed and within this area there is a BMX bike track. The vegetation in this area, although containing Eucalytus oreades, does not contain pure stands of this species as in other areas in the Blue Mountains and this species is intermixed with the other species on the site. ...
... been previously quite disturbed and within this area there is a BMX bike track. The vegetation in this area, although containing Eucalytus oreades, does not contain pure stands of this species as in other areas in the Blue Mountains and this species is intermixed with the other species on the site. ...
BIODIVERSITY AND ECOSYSTEM FUNCTION: DO SPECIES
... Biological communities perform a variety of functions within ecosystems, including regulation of climatic processes, breakdown of waste, recycling of nutrients, maintenance of soil fertility and provision of natural resources. Although exact numbers and timescales are difficult to determine, it is c ...
... Biological communities perform a variety of functions within ecosystems, including regulation of climatic processes, breakdown of waste, recycling of nutrients, maintenance of soil fertility and provision of natural resources. Although exact numbers and timescales are difficult to determine, it is c ...
Tropical Andes
The Tropical Andes is a subregion of the Andes spanning all of the Andes except the southern mediterranean and temperate zones. The Tropical Andes area spans 1,542,644 km2.