SUCCULENT KAROO ECOSYSTEM PROGRAMME
... process of biodiversity conservation within the Succulent Karoo. After two years, SKEP Namibia had to identify their niche in order to have a clear vision for the future. Namibia Nature Foundation- NNF has been approach to host the SKEP programme in Namibia and after intense discussions an agreement ...
... process of biodiversity conservation within the Succulent Karoo. After two years, SKEP Namibia had to identify their niche in order to have a clear vision for the future. Namibia Nature Foundation- NNF has been approach to host the SKEP programme in Namibia and after intense discussions an agreement ...
COMMUNITY INVASIBILITY, RECRUITMENT LIMITATION, AND GRASSLAND BIODIVERSITY D T
... Field D (Tilman 1987), that has never been cut or cultivated and has been free of domestic livestock grazing for .50 yr. It has been maintained as savanna by prescribed spring burning in two of every three years for the past 30 yr (White 1983, Tester 1989). It was burned in early May of 1991, 1993, ...
... Field D (Tilman 1987), that has never been cut or cultivated and has been free of domestic livestock grazing for .50 yr. It has been maintained as savanna by prescribed spring burning in two of every three years for the past 30 yr (White 1983, Tester 1989). It was burned in early May of 1991, 1993, ...
Species Diversity and Genetic Diversity: Parallel
... may be critical for predicting the overall response of biodiversity to habitat alterations. For example, habitat fragmentation is expected to reduce within-patch diversity at both levels as a result of decreases in population and community size and reduced immigration rate (Hubbell 2001; Frankham et ...
... may be critical for predicting the overall response of biodiversity to habitat alterations. For example, habitat fragmentation is expected to reduce within-patch diversity at both levels as a result of decreases in population and community size and reduced immigration rate (Hubbell 2001; Frankham et ...
Trophically Unique Species Are Vulnerable to Cascading Extinction Linköping University Postprint
... tends to interact with connectance. In sparsely connected communities, extinction of a top predator is less likely to cause secondary extinctions than extinction of a basal species (Borrvall et al. 2000; Quince et al. 2005; Eklöf and Ebenman 2006). However, in more highly connected communities, ext ...
... tends to interact with connectance. In sparsely connected communities, extinction of a top predator is less likely to cause secondary extinctions than extinction of a basal species (Borrvall et al. 2000; Quince et al. 2005; Eklöf and Ebenman 2006). However, in more highly connected communities, ext ...
Resource Depletion and Habitat Segregation by Competitors Under
... lifetime, from carnivory to herbivory (e.g., some turtles; Clark and Gibbons 1969), or from herbivory to carnivory (e.g., some copepods; Neill and Peacock 1980), or from aquatic to terrestrial habitats (e.g., many amphibians). Many other species show large shifts in prey size or habitat use as they ...
... lifetime, from carnivory to herbivory (e.g., some turtles; Clark and Gibbons 1969), or from herbivory to carnivory (e.g., some copepods; Neill and Peacock 1980), or from aquatic to terrestrial habitats (e.g., many amphibians). Many other species show large shifts in prey size or habitat use as they ...
Global change and Mediterranean forests
... removal to expand agricultural land and pastures has been the most common land-use conversion during the last centuries. In particular, Mediterranean forests have widely disappeared because of exploitation and substitution by agricultural landscapes and, more recently, by urban development around ci ...
... removal to expand agricultural land and pastures has been the most common land-use conversion during the last centuries. In particular, Mediterranean forests have widely disappeared because of exploitation and substitution by agricultural landscapes and, more recently, by urban development around ci ...
G. Evelyn Hutchinson
... Hutchinson, G.E. 1918. A swimming grasshopper. - Entomological Record and Journal of Variation. 30:138. Hutchinson, G.E. 1928. The branchial gland of the Cephalopoda- a possible endocrine organ. Nature. 121:674-675. Hutchinson, G.E., G.E. Pickford, and J.F.M. Schuurman. 1932. A contribution to the ...
... Hutchinson, G.E. 1918. A swimming grasshopper. - Entomological Record and Journal of Variation. 30:138. Hutchinson, G.E. 1928. The branchial gland of the Cephalopoda- a possible endocrine organ. Nature. 121:674-675. Hutchinson, G.E., G.E. Pickford, and J.F.M. Schuurman. 1932. A contribution to the ...
3337 CBD Synthesis.indd - Millennium Ecosystem Assessment
... and to establish the scientific basis for actions needed to enhance the conservation and sustainable use of ecosystems and their contributions to human well-being. Biological diversity plays a critical role in underpinning ecosystem services. Governments supported the establishment of the MA through ...
... and to establish the scientific basis for actions needed to enhance the conservation and sustainable use of ecosystems and their contributions to human well-being. Biological diversity plays a critical role in underpinning ecosystem services. Governments supported the establishment of the MA through ...
Woylie declines: what are the causes?
... Understanding the causes of the woylie declines and the factors limiting population recovery is a top priority of the Woylie Recovery Plan because this will directly instruct conservation and management efforts on the most effective and efficient means of ensuring a robust and sustained recovery of ...
... Understanding the causes of the woylie declines and the factors limiting population recovery is a top priority of the Woylie Recovery Plan because this will directly instruct conservation and management efforts on the most effective and efficient means of ensuring a robust and sustained recovery of ...
Artificial Lighting - The Nature Conservancy
... Reduce light spillage by properly shading and directing light downward, diffusing light to reduce glare, using low-pressure sodium lamps, and avoiding and minimizing flaring (green completion). Reduce the amount, intensity and timing of artificial lighting particularly (a) during migration periods a ...
... Reduce light spillage by properly shading and directing light downward, diffusing light to reduce glare, using low-pressure sodium lamps, and avoiding and minimizing flaring (green completion). Reduce the amount, intensity and timing of artificial lighting particularly (a) during migration periods a ...
IMPACT: Toward a framework for understanding the
... policy context. We end with recommendations about how the field of invasion biology might proceed in order to build a general framework for understanding and predicting impacts. In particular, we advocate studies designed to explore the correlations among different measures: Are the results of compl ...
... policy context. We end with recommendations about how the field of invasion biology might proceed in order to build a general framework for understanding and predicting impacts. In particular, we advocate studies designed to explore the correlations among different measures: Are the results of compl ...
High trophic overlap within the seabird community of Argentinean
... were collected from nestling and adult seabirds, as well as prey, during three consecutive breeding seasons in 28 breeding colonies. 2. Relative to those in other temperate and polar regions, this seabird community showed a high degree of overlap in trophic level (TL) among species (93% of species w ...
... were collected from nestling and adult seabirds, as well as prey, during three consecutive breeding seasons in 28 breeding colonies. 2. Relative to those in other temperate and polar regions, this seabird community showed a high degree of overlap in trophic level (TL) among species (93% of species w ...
Neutral theory and community ecology
... predict these patterns. Hubbell’s theory contends that drastic simplifications on the manifold processes that shape ecological communities can be made. This theory is neutral because it assumes that all individuals in a community are strictly equivalent regarding their prospects of reproduction and ...
... predict these patterns. Hubbell’s theory contends that drastic simplifications on the manifold processes that shape ecological communities can be made. This theory is neutral because it assumes that all individuals in a community are strictly equivalent regarding their prospects of reproduction and ...
Threats, conservation strategies, and prognosis for suckers
... mountain suckers with horny plates on their lower lip for scraping invertebrates and algae from rocks in fast-moving streams; and (3) typical suckers with subterminal mouths that occupy a wide range of fluvial habitats. Extreme variation occurs in life-history strategies. For example, some species ar ...
... mountain suckers with horny plates on their lower lip for scraping invertebrates and algae from rocks in fast-moving streams; and (3) typical suckers with subterminal mouths that occupy a wide range of fluvial habitats. Extreme variation occurs in life-history strategies. For example, some species ar ...
Species dynamics alter community diversitybiomass stability
... ferent dynamical behaviours are more nuanced than previous work has suggested, with negative diversity–stability patterns possible contrary to predictions from earlier work on similar models. an ...
... ferent dynamical behaviours are more nuanced than previous work has suggested, with negative diversity–stability patterns possible contrary to predictions from earlier work on similar models. an ...
Practice Exam
... a) Developed countries are home to twice as many people as developing countries. b) Developed countries are home to four times as many people as developing countries. c) Developed countries have more rapid population growth rates than developing countries. d) Developed countries have lower per capit ...
... a) Developed countries are home to twice as many people as developing countries. b) Developed countries are home to four times as many people as developing countries. c) Developed countries have more rapid population growth rates than developing countries. d) Developed countries have lower per capit ...
Mudflats and Invertebrates
... meandering path offers many areas for slower moving waters to deposit their smaller and light weight sediments. Because the settling sediments are tiny, they can pack together tightly with little to no pore space between them. This lack of pore space creates an anoxic or anaerobic environment. While ...
... meandering path offers many areas for slower moving waters to deposit their smaller and light weight sediments. Because the settling sediments are tiny, they can pack together tightly with little to no pore space between them. This lack of pore space creates an anoxic or anaerobic environment. While ...
Advances in Environmental Biology
... The wildlife sanctuary of Padang Sugihan in South Sumatra province is the habitat of wild Sumatran elephants that have five types of plant communities (sub-habitats) of lowland wetland ecosystem such as mixed swamp forests, secondary forests, stands of Melaleuca cajuputi, inland marsh grasses and sw ...
... The wildlife sanctuary of Padang Sugihan in South Sumatra province is the habitat of wild Sumatran elephants that have five types of plant communities (sub-habitats) of lowland wetland ecosystem such as mixed swamp forests, secondary forests, stands of Melaleuca cajuputi, inland marsh grasses and sw ...
Habitat selection by feral cats and dingoes in a
... feral cats (Konecny 1987; Alterio et al. 1998), no study has examined the possible reasons underlying these phenomena. Habitat use in animals has been much studied over the past 75 years (Rosenzweig 1991). From early on it was recognized that within some species, individuals actually choose which ha ...
... feral cats (Konecny 1987; Alterio et al. 1998), no study has examined the possible reasons underlying these phenomena. Habitat use in animals has been much studied over the past 75 years (Rosenzweig 1991). From early on it was recognized that within some species, individuals actually choose which ha ...
This page is also available as a
... how rapidly) and the threats faced by those species. Hunting, habitat loss/degradation and climate change are the three biggest threats to the natural world and these problems are increasing the number of endangered species rapidly. Below is a list of some of the species associated with Mangroves ra ...
... how rapidly) and the threats faced by those species. Hunting, habitat loss/degradation and climate change are the three biggest threats to the natural world and these problems are increasing the number of endangered species rapidly. Below is a list of some of the species associated with Mangroves ra ...
frogwatch teachers` guide to frogs as indicators of
... mines of yesteryear—respond quickly to changes in their environment. This is important because we rely on the wetland ecosystems where they live for our clean water. Wetlands act as natural filters to keep Canada's water pure. Declines in frog populations may indicate ecological problems in an ecosy ...
... mines of yesteryear—respond quickly to changes in their environment. This is important because we rely on the wetland ecosystems where they live for our clean water. Wetlands act as natural filters to keep Canada's water pure. Declines in frog populations may indicate ecological problems in an ecosy ...
Overview of Ecological Responses to the Eruption of Mount St. Helens
... The sensational 1980 eruption of Mount St. Helens and the subsequent ecological responses are the most thoroughly studied volcanic eruption in the world. The posteruption landscape was remarkable, and nearly a quarter century of study has provided a wealth of information and insight on a broad spect ...
... The sensational 1980 eruption of Mount St. Helens and the subsequent ecological responses are the most thoroughly studied volcanic eruption in the world. The posteruption landscape was remarkable, and nearly a quarter century of study has provided a wealth of information and insight on a broad spect ...
Indirect Effects in - Department of Knowledge Technologies
... In the end of nineteenth century the school of thought founded by Dokuchaiev had developed a theory that soil was a product of complex interactions between climate and geological and biological components of the terrestrial landscape. Indirect effects in terrestrial ecosystems relate to the dependen ...
... In the end of nineteenth century the school of thought founded by Dokuchaiev had developed a theory that soil was a product of complex interactions between climate and geological and biological components of the terrestrial landscape. Indirect effects in terrestrial ecosystems relate to the dependen ...
Reconciliation ecology
Reconciliation ecology is the branch of ecology which studies ways to encourage biodiversity in human-dominated ecosystems. Michael Rosenzweig first articulated the concept in his book Win-Win Ecology, based on the theory that there is not enough area for all of earth’s biodiversity to be saved within designated nature preserves. Therefore, humans should increase biodiversity in human-dominated landscapes. By managing for biodiversity in ways that do not decrease human utility of the system, it is a ""win-win"" situation for both human use and native biodiversity. The science is based in the ecological foundation of human land-use trends and species-area relationships. It has many benefits beyond protection of biodiversity, and there are numerous examples of it around the globe. Aspects of reconciliation ecology can already be found in management legislation, but there are challenges in both public acceptance and ecological success of reconciliation attempts.