Eco-evolutionary feedbacks in community and ecosystem ecology
... Interactions between natural selection and environmental change are well recognized and sit at the core of ecology and evolutionary biology. Reciprocal interactions between ecology and evolution, eco-evolutionary feedbacks, are less well studied, even though they may be critical for understanding th ...
... Interactions between natural selection and environmental change are well recognized and sit at the core of ecology and evolutionary biology. Reciprocal interactions between ecology and evolution, eco-evolutionary feedbacks, are less well studied, even though they may be critical for understanding th ...
A New Model for Global Conservation
... original vegetation has been destroyed, while the remainder faces threats from growing population as well as industrial development ranging from petroleum and mining to hydroelectric, road and other infrastructure projects. Another example is the Sundaland Hotspot in Southeast Asia, which covers an ...
... original vegetation has been destroyed, while the remainder faces threats from growing population as well as industrial development ranging from petroleum and mining to hydroelectric, road and other infrastructure projects. Another example is the Sundaland Hotspot in Southeast Asia, which covers an ...
Surveys of Species at Risk and their Associated Habitats in the
... Many of the Clowhom wetlands have been impacted by humans. One problematic issue facing some of these wetlands and their species are the unnatural and unpredictable fluctuations in water levels with hydro activities. Fluctuating water levels in wetlands immediately adjacent to the reservoir limit r ...
... Many of the Clowhom wetlands have been impacted by humans. One problematic issue facing some of these wetlands and their species are the unnatural and unpredictable fluctuations in water levels with hydro activities. Fluctuating water levels in wetlands immediately adjacent to the reservoir limit r ...
Status of Otters in Nepal
... ii) Overfishing in the major rivers with the use of large gill nets. The use of dynamite, electro-fishing and poisoning in wetlands have also posed a significant threat to its existence. Eurasian otter Lutra lutra The common otter is the only species of concern for local conservation as significant ...
... ii) Overfishing in the major rivers with the use of large gill nets. The use of dynamite, electro-fishing and poisoning in wetlands have also posed a significant threat to its existence. Eurasian otter Lutra lutra The common otter is the only species of concern for local conservation as significant ...
Phenolics and Plant Allelopathy
... 3.1. Extration Methods of Total Phenolics with Solvents Organic solvents, acids and bases have always been used for the extraction of phenolics from plant materials with different efficiencies for individual classes of phenolic compounds [27]. Polar solvents such as methanol, ethanol, acetone, or ac ...
... 3.1. Extration Methods of Total Phenolics with Solvents Organic solvents, acids and bases have always been used for the extraction of phenolics from plant materials with different efficiencies for individual classes of phenolic compounds [27]. Polar solvents such as methanol, ethanol, acetone, or ac ...
Zooplankton community composition of lakes in
... We analysed associations between zooplankton species composition and local abiotic factors in 30 lakes located along a 900 km south-north transect from Whitehorse (Yukon Territory) to Inuvik (Northwest Territories). The lakes were situated in three broadly defined vegetation zones: (i) Boreal forest ...
... We analysed associations between zooplankton species composition and local abiotic factors in 30 lakes located along a 900 km south-north transect from Whitehorse (Yukon Territory) to Inuvik (Northwest Territories). The lakes were situated in three broadly defined vegetation zones: (i) Boreal forest ...
Indirect interactions and plant community structure
... Here I show that strong interspecific competition is highly attenuated, and even reversed to facilitative interactions, when species compete simultaneously in groups. In some cases, the “modified interactions” that occur in groups of competitors may help to explain why some diverse communities in n ...
... Here I show that strong interspecific competition is highly attenuated, and even reversed to facilitative interactions, when species compete simultaneously in groups. In some cases, the “modified interactions” that occur in groups of competitors may help to explain why some diverse communities in n ...
SPECIES AND HABITAT ASSESSMENTS AND CONSERVATION
... – North Carolina PIF Bird Conservation Plain (Johns et al. 2005) The South Atlantic Migratory Bird Initiative (SAMBI) formed to provide a regional scale framework for the conservation of waterfowl, shorebirds, waterbirds, landbirds, and other high priority species (e.g., northern bobwhite and Americ ...
... – North Carolina PIF Bird Conservation Plain (Johns et al. 2005) The South Atlantic Migratory Bird Initiative (SAMBI) formed to provide a regional scale framework for the conservation of waterfowl, shorebirds, waterbirds, landbirds, and other high priority species (e.g., northern bobwhite and Americ ...
Spatial patterns in European rabbit abundance after a population
... Assessing the associations between spatial patterns in population abundance and environmental heterogeneity is critical for understanding various population processes and for managing species and communities. This study evaluates responses in the abundance of the European rabbit (Oryctolagus cunicul ...
... Assessing the associations between spatial patterns in population abundance and environmental heterogeneity is critical for understanding various population processes and for managing species and communities. This study evaluates responses in the abundance of the European rabbit (Oryctolagus cunicul ...
foraging ecology of the red-crowned parakeet
... August) and the frequency data then analysed using Chi-square tests for independence. This data was then transformed into percentages from which 95% confidence limits were calculated and graphed. Seasonal differences in diet were compared between both parakeet species, except for summer months due t ...
... August) and the frequency data then analysed using Chi-square tests for independence. This data was then transformed into percentages from which 95% confidence limits were calculated and graphed. Seasonal differences in diet were compared between both parakeet species, except for summer months due t ...
ppt
... “The extraordinary diversity of the terrestrial fauna, which is much greater than that of the marine fauna, is clearly due largely to the diversity provided by terrestrial plants… on the whole the problem still remains, but in the new form: Why are there so many kinds of plants?” Hutchinson (1959) “ ...
... “The extraordinary diversity of the terrestrial fauna, which is much greater than that of the marine fauna, is clearly due largely to the diversity provided by terrestrial plants… on the whole the problem still remains, but in the new form: Why are there so many kinds of plants?” Hutchinson (1959) “ ...
Waterbird Conservation Plan - Prairie Habitat Joint Venture
... conditions, on dispersal and population shifts. • An understanding of the relative role of breeding, staging, and wintering grounds on waterbird populations (e.g., knowing where conservation bottlenecks are and who will address them). These issues will need to be addressed at a broader scale than th ...
... conditions, on dispersal and population shifts. • An understanding of the relative role of breeding, staging, and wintering grounds on waterbird populations (e.g., knowing where conservation bottlenecks are and who will address them). These issues will need to be addressed at a broader scale than th ...
WABSI Research Plan 2017-2020
... but only with robust scientific information that can be used by decision makers to avoid and minimise impacts and, where necessary, develop complementary management strategies, such as biodiversity offsets and restoration to address significant residual impacts. A biodiversity institute has the pote ...
... but only with robust scientific information that can be used by decision makers to avoid and minimise impacts and, where necessary, develop complementary management strategies, such as biodiversity offsets and restoration to address significant residual impacts. A biodiversity institute has the pote ...
The distribution of deer biomass in North America supports the
... et al. 1992). In three-link systems, a trade-off between elusiveness and use of marginal forage, and coevolution allow some slow increase of herbivore biomass along with productivity even under predator regulation (L. Oksanen 1992). Finally, according to EEH, carnivore biomass increases asymptotical ...
... et al. 1992). In three-link systems, a trade-off between elusiveness and use of marginal forage, and coevolution allow some slow increase of herbivore biomass along with productivity even under predator regulation (L. Oksanen 1992). Finally, according to EEH, carnivore biomass increases asymptotical ...
Synchronous dynamics of zooplankton competitors
... communities [1,2] and of the processes structuring community composition [3–5]. Synchrony and its alternative pattern, compensation (or compensatory dynamics), are mutually exclusive phenomenological features of community dynamics that can arise from many underlying mechanisms [6,7]. Compensation ma ...
... communities [1,2] and of the processes structuring community composition [3–5]. Synchrony and its alternative pattern, compensation (or compensatory dynamics), are mutually exclusive phenomenological features of community dynamics that can arise from many underlying mechanisms [6,7]. Compensation ma ...
Streaked Horned Lark Habitat Characteristics
... Finally, because larks tend to use early successional habitats and vegetation conditions may change rapidly within and between seasons, habitat suitability may change over time depending on the site, the type of vegetation, and the nature of past and ongoing human disturbance. Because of these chang ...
... Finally, because larks tend to use early successional habitats and vegetation conditions may change rapidly within and between seasons, habitat suitability may change over time depending on the site, the type of vegetation, and the nature of past and ongoing human disturbance. Because of these chang ...
Spatial Ecology of Wolverines in Scandinavia
... Large carnivores in Europe During the last centuries, wilderness areas in Europe have changed into multiple-use landscapes in the face of human development and urbanisation. Today, impacts from the changing landscapes are considered to be the most important threat to biological diversity in terrestr ...
... Large carnivores in Europe During the last centuries, wilderness areas in Europe have changed into multiple-use landscapes in the face of human development and urbanisation. Today, impacts from the changing landscapes are considered to be the most important threat to biological diversity in terrestr ...
Spatial Ecology of Wolverines in Scandinavia
... Large carnivores in Europe During the last centuries, wilderness areas in Europe have changed into multiple-use landscapes in the face of human development and urbanisation. Today, impacts from the changing landscapes are considered to be the most important threat to biological diversity in terrestr ...
... Large carnivores in Europe During the last centuries, wilderness areas in Europe have changed into multiple-use landscapes in the face of human development and urbanisation. Today, impacts from the changing landscapes are considered to be the most important threat to biological diversity in terrestr ...
The role of earthworms for assessment of sustainability and as
... The choice of earthworm collection methods depends on the aim of the sampling campaign, i.e., obtaining the maximum number of species in one area or estimating differences among various components or locations in a landscape. Sampling methods always represent a compromise between effort and labor (a ...
... The choice of earthworm collection methods depends on the aim of the sampling campaign, i.e., obtaining the maximum number of species in one area or estimating differences among various components or locations in a landscape. Sampling methods always represent a compromise between effort and labor (a ...
An experimental demonstration of direct behavioural
... replacing the autochthonous species P. melisellensis by competitive exclusion. We used an experimental approach on newborn lizards to test the hypothesis that direct behavioural interference occurs between P. sicula and P. melisellensis, whereby the former obtains an advantage over the latter. Brief ...
... replacing the autochthonous species P. melisellensis by competitive exclusion. We used an experimental approach on newborn lizards to test the hypothesis that direct behavioural interference occurs between P. sicula and P. melisellensis, whereby the former obtains an advantage over the latter. Brief ...
Environment, Politics and Development Working Paper Series
... Conservation of species and ecosystems is a major global trend that has developed over the last 50 years in response to increasing evidence of environmental degradation associated with human activity (see e.g. Primack 1993; Hunter 2002). Much current global conservation policy and implementation is ...
... Conservation of species and ecosystems is a major global trend that has developed over the last 50 years in response to increasing evidence of environmental degradation associated with human activity (see e.g. Primack 1993; Hunter 2002). Much current global conservation policy and implementation is ...
An Analysis of Macaw Conservation Strategies at the Tambopata
... The first successful artificial nest boxes were created at the TRC in 1990. The nest boxes were made from Ireartea palm trunks and were inhabited by wild macaws. This resulted in the scarlet macaw (Ara Macoa) being the first species to fledge young one of the nest boxes. However, these nest boxes we ...
... The first successful artificial nest boxes were created at the TRC in 1990. The nest boxes were made from Ireartea palm trunks and were inhabited by wild macaws. This resulted in the scarlet macaw (Ara Macoa) being the first species to fledge young one of the nest boxes. However, these nest boxes we ...
Species Profile - Atlantic States Marine Fisheries Commission
... American shad are preyed upon by many species including sharks, tunas, king mackerel, seals, and porpoises. They are also a seasonally important prey species for a number of fish, birds, and wildlife species, with the adult spawning American shad arriving in the early spring when other prey may be s ...
... American shad are preyed upon by many species including sharks, tunas, king mackerel, seals, and porpoises. They are also a seasonally important prey species for a number of fish, birds, and wildlife species, with the adult spawning American shad arriving in the early spring when other prey may be s ...
consumer–resource body-size relationships in natural food webs
... Abstract. It has been suggested that differences in body size between consumer and resource species may have important implications for interaction strengths, population dynamics, and eventually food web structure, function, and evolution. Still, the general distribution of consumer–resource body-si ...
... Abstract. It has been suggested that differences in body size between consumer and resource species may have important implications for interaction strengths, population dynamics, and eventually food web structure, function, and evolution. Still, the general distribution of consumer–resource body-si ...
Streaked horned lark habitat selection and restoration, by Scott F
... Peter focused on three general areas where conservation and research are needed for Garry oak systems. The first need is to save what is left—to protect remaining oak habitats from development, since so little remains. Research is needed on restoration of degraded habitats, which Peter regards as th ...
... Peter focused on three general areas where conservation and research are needed for Garry oak systems. The first need is to save what is left—to protect remaining oak habitats from development, since so little remains. Research is needed on restoration of degraded habitats, which Peter regards as th ...
Biological Dynamics of Forest Fragments Project
The Biological Dynamics of Forest Fragments Project, originally called the Minimum Critical Size of Ecosystems Project is a large-scale ecological experiment looking at the effects of habitat fragmentation on tropical rainforest; it is one of the most expensive biology experiments ever run. The experiment, which was established in 1979 is located near Manaus, in the Brazilian Amazon. The project is jointly managed by the Smithsonian Institution and INPA, the Brazilian Institute for Research in the Amazon.The project was initiated in 1979 by Thomas Lovejoy to investigate the SLOSS debate. Initially named the Minimum Critical Size of Ecosystems Project, the project created forest fragments of sizes 1 hectare (2 acres), 10 hectares (25 acres), and 100 hectares (247 acres). Data were collected prior to the creation of the fragments and studies of the effects of fragmentation now exceed 25 years.As of October 2010 562 publications and 143 graduate dissertations and theses had emerged from the project.