network topology and biodiversity loss in food webs: robustness
... undergoing secondary extinctions. The same amount of random removals results in ~20% secondary extinctions in the Grassland web and <10% in the other three webs. Similar results were reported for the taxonomic versions of the latter three webs, including the very extreme fragility of the Scotch Broo ...
... undergoing secondary extinctions. The same amount of random removals results in ~20% secondary extinctions in the Grassland web and <10% in the other three webs. Similar results were reported for the taxonomic versions of the latter three webs, including the very extreme fragility of the Scotch Broo ...
Chapter-9-Wildlife-Biology-and-Management
... Shelter • All organisms have basic habitat needs – Habitat: Home where organism eats, rests, and ...
... Shelter • All organisms have basic habitat needs – Habitat: Home where organism eats, rests, and ...
Plants and insects in early oldfield succession
... individual plant has been touched. Likewise, we assume that the presence of a species at a given presence/absence pin indicates that only one individual has been touched. Our personal observations over two years suggest that these assumptions are realistic. Arthropods Arthropods were sorted into tax ...
... individual plant has been touched. Likewise, we assume that the presence of a species at a given presence/absence pin indicates that only one individual has been touched. Our personal observations over two years suggest that these assumptions are realistic. Arthropods Arthropods were sorted into tax ...
From biodiversity-based conservation to an ethic of bioproportionality
... Few vast areas of land relatively undisturbed by human activity and home to abundant populations of wild, indigenous animal species remain on earth, but wherever they do – as in parts of the Arctic, Antarctica, Australia and South America – they are currently threatened with large-scale resource ext ...
... Few vast areas of land relatively undisturbed by human activity and home to abundant populations of wild, indigenous animal species remain on earth, but wherever they do – as in parts of the Arctic, Antarctica, Australia and South America – they are currently threatened with large-scale resource ext ...
ECOlogical use of native PLANTs for environmental
... Economic impacts (high management and eradication cost of invasive species as for e.g. eradicate Carpobrotus edulis and C. acinaciformis in Spain) Human health (some exotic plants have a direct impact on humans, such as those species that have become new sources of allergies for local residents) Eco ...
... Economic impacts (high management and eradication cost of invasive species as for e.g. eradicate Carpobrotus edulis and C. acinaciformis in Spain) Human health (some exotic plants have a direct impact on humans, such as those species that have become new sources of allergies for local residents) Eco ...
1 Theories
... chance. Perhaps many of the species in the species pool are ecological equivalents, so ...
... chance. Perhaps many of the species in the species pool are ecological equivalents, so ...
Latitudinal gradients in biotic niche breadth vary
... therefore linear in a log – log plot. (b) We show two versions of the latitudinal – niche breadth hypothesis that have been proposed to explain this gradient. Hypothesis 1 posits that greater environmental stability in the tropics will allow species to evolve narrower niches (indicated by parabolas) ...
... therefore linear in a log – log plot. (b) We show two versions of the latitudinal – niche breadth hypothesis that have been proposed to explain this gradient. Hypothesis 1 posits that greater environmental stability in the tropics will allow species to evolve narrower niches (indicated by parabolas) ...
Training on Payments for Ecosystem Services: Biodiversity Module
... ¾ Traditionally free benefits to society or “public goods” ¾ Scale is variable from local to global benefits Biodiversity - 0: General Notes and Introduction ...
... ¾ Traditionally free benefits to society or “public goods” ¾ Scale is variable from local to global benefits Biodiversity - 0: General Notes and Introduction ...
MONTEVERDE GOLDEN TOAD Remaining Population: Unknown
... In 1987, the golden toad was closely studied by an American ecologist and herpetologist who, by chance, happened upon its breeding spectacle. She described it as brief and breathtaking; the males looked like "little jewels on the forest floor." She was so fascinated that she applied for a grant to r ...
... In 1987, the golden toad was closely studied by an American ecologist and herpetologist who, by chance, happened upon its breeding spectacle. She described it as brief and breathtaking; the males looked like "little jewels on the forest floor." She was so fascinated that she applied for a grant to r ...
Larsen et al (2005) Ecol Letters pdf
... from communities will be random with respect to functional importance. However, a correlation between these traits can modify the relationship between richness and ecosystem function. Based on these observations, we developed a conceptual framework to describe how speciesÕ response and effect traits ...
... from communities will be random with respect to functional importance. However, a correlation between these traits can modify the relationship between richness and ecosystem function. Based on these observations, we developed a conceptual framework to describe how speciesÕ response and effect traits ...
Extinction order and altered community structure
... from communities will be random with respect to functional importance. However, a correlation between these traits can modify the relationship between richness and ecosystem function. Based on these observations, we developed a conceptual framework to describe how species! response and effect traits ...
... from communities will be random with respect to functional importance. However, a correlation between these traits can modify the relationship between richness and ecosystem function. Based on these observations, we developed a conceptual framework to describe how species! response and effect traits ...
Louisiana Waterthrush
... Maintain mature stream-side forests, providing or maintaining nesting habitat in steep, eroding stream banks, and increasing riffle areas and shallow stream edges. Louisiana Waterthrushes also require relatively large tracts of forest. Although the minimum width of forest corridors necessary for ...
... Maintain mature stream-side forests, providing or maintaining nesting habitat in steep, eroding stream banks, and increasing riffle areas and shallow stream edges. Louisiana Waterthrushes also require relatively large tracts of forest. Although the minimum width of forest corridors necessary for ...
Habitat Partitioning by Two Sympatric Species of Chipmunk (Genus
... The artificial feeding stations were highly successful in attracting both species at the same times during the day. The most successful station was located in an ecotonal area easily accessible to both species. Once both species began utilizing the feeding stations a clear hierarchy was established ...
... The artificial feeding stations were highly successful in attracting both species at the same times during the day. The most successful station was located in an ecotonal area easily accessible to both species. Once both species began utilizing the feeding stations a clear hierarchy was established ...
Ecological Reference Points for Forage Species
... ecosystems.vii But NMFS had never provided guidance and direction as to how fishery managers should take into account the protection of PREY DEPLETION ASSOCIATED WITH MSY marine ecosystems when they set catch limits, or how MSY should be reduced by ecological factors, or even what those factors are. ...
... ecosystems.vii But NMFS had never provided guidance and direction as to how fishery managers should take into account the protection of PREY DEPLETION ASSOCIATED WITH MSY marine ecosystems when they set catch limits, or how MSY should be reduced by ecological factors, or even what those factors are. ...
Riparian Habitat Management for Reptiles and Amphibians on
... and loss of aquatic habitat (Hall 1980). Herpetofauna are important in food chains and they make up large proportions of vertebrates in certain ecosystems (Bury and Raphael 1983). Information on amphibian and reptile abundance and diversity helps determine the relative health of ecosystems. For exam ...
... and loss of aquatic habitat (Hall 1980). Herpetofauna are important in food chains and they make up large proportions of vertebrates in certain ecosystems (Bury and Raphael 1983). Information on amphibian and reptile abundance and diversity helps determine the relative health of ecosystems. For exam ...
São Tomé e Príncipe International Species Action Plans for Critically
... practices have threatened and have exerted great pressure on the biodiversity, and in particular on some sensitive endemic species. As a result some of them, including the Dwarfolive ibis Bostrychia bocagei, the São Tomé Grosbeak Neospiza concolor and the São Tomé Fiscal Lanius newtoni, are now clas ...
... practices have threatened and have exerted great pressure on the biodiversity, and in particular on some sensitive endemic species. As a result some of them, including the Dwarfolive ibis Bostrychia bocagei, the São Tomé Grosbeak Neospiza concolor and the São Tomé Fiscal Lanius newtoni, are now clas ...
Bird conservation in tropical ecosystems
... the lifeblood of biodiversity. They are particularly important in tropical ecosystems because co-evolutionary associations tend to increase in abundance towards the equator (Schemske et al. 2009). In effect, the complex architecture of food webs and other biotic interactions in tropical ecosystems i ...
... the lifeblood of biodiversity. They are particularly important in tropical ecosystems because co-evolutionary associations tend to increase in abundance towards the equator (Schemske et al. 2009). In effect, the complex architecture of food webs and other biotic interactions in tropical ecosystems i ...
Ecological benefits of the temporary nature concept
... Temporary nature seems very attractive to some species, but finally does not offer suitable conditions for survival or reproduction. Examples: Birds are attracted to a breeding site with suitable conditions, but predation of chicks is too high for maintaining the population. Animals are attracted to ...
... Temporary nature seems very attractive to some species, but finally does not offer suitable conditions for survival or reproduction. Examples: Birds are attracted to a breeding site with suitable conditions, but predation of chicks is too high for maintaining the population. Animals are attracted to ...
Native Forest Restoration Guide
... broadleaved forest interspersed with taller canopy trees such as rimu, tōtara, miro, tānekaha, kahikatea, and stands of kauri. Of the broadleaved species, taraire, pūriri and kohekohe are very common canopy trees at lower altitudes, with tawa typically becoming more common above 200m and on cooler s ...
... broadleaved forest interspersed with taller canopy trees such as rimu, tōtara, miro, tānekaha, kahikatea, and stands of kauri. Of the broadleaved species, taraire, pūriri and kohekohe are very common canopy trees at lower altitudes, with tawa typically becoming more common above 200m and on cooler s ...
A Game-Theoretic Model for Punctuated Equilibrium
... this model, it would be possible to take each lineage to be a separate species (corresponding to assuming every payoff function is unrelated to every other) and so each successful mutation would lead to a new species. Although this is an important extreme, we are more interested in modelling invasion ...
... this model, it would be possible to take each lineage to be a separate species (corresponding to assuming every payoff function is unrelated to every other) and so each successful mutation would lead to a new species. Although this is an important extreme, we are more interested in modelling invasion ...
View PDF
... cultivated plants, from a wide range of perspectives. My doctorate is not in the green stuff at all – it is actually in fungi, but even more so, slightly off to askance, it is actually on a group of organisms called oomycetes, what many other people would really be more familiar with things like phy ...
... cultivated plants, from a wide range of perspectives. My doctorate is not in the green stuff at all – it is actually in fungi, but even more so, slightly off to askance, it is actually on a group of organisms called oomycetes, what many other people would really be more familiar with things like phy ...
maintenance
... This TPC excludes lions less than two years old as the numbers of animals in this age group are considered to be the most volatile and are likely to cause short-term variations in population densities which may have a disproportionate influence on the results of a census. Not including these juveni ...
... This TPC excludes lions less than two years old as the numbers of animals in this age group are considered to be the most volatile and are likely to cause short-term variations in population densities which may have a disproportionate influence on the results of a census. Not including these juveni ...
Patterns of cooccurrences in a killifish
... which a system is analysed (Violle et al. 2012). Largescale patterns are often related to environmental filtering of species, whereas small-scale patterns are likely to be more affected by interspecific interactions (Weiher & Keddy 1999; Webb et al. 2002). The prevailing view is that species are bas ...
... which a system is analysed (Violle et al. 2012). Largescale patterns are often related to environmental filtering of species, whereas small-scale patterns are likely to be more affected by interspecific interactions (Weiher & Keddy 1999; Webb et al. 2002). The prevailing view is that species are bas ...
IMPACT: Toward a framework for understanding the
... (Anagnostakis 1987, von Broembsen 1989). However, ecologists disagree over whether or not that invasion had a biologically significant impact on the Eastern deciduous forest as a whole (von Broembsen 1989, Day and Monk 1974, Shugart and West 1977). Such disagreement can be attributed in part to the ...
... (Anagnostakis 1987, von Broembsen 1989). However, ecologists disagree over whether or not that invasion had a biologically significant impact on the Eastern deciduous forest as a whole (von Broembsen 1989, Day and Monk 1974, Shugart and West 1977). Such disagreement can be attributed in part to the ...
Sustaining the Saco
... Introduction For sustainable management of an ecosystem or resources within an ecosystem, it is not enough to study specific species of interest. It is much more informative for management and conservation decision-making to consider the connections among species in the ecosystem. Connections among ...
... Introduction For sustainable management of an ecosystem or resources within an ecosystem, it is not enough to study specific species of interest. It is much more informative for management and conservation decision-making to consider the connections among species in the ecosystem. Connections among ...
Island restoration
The ecological restoration of islands, or island restoration, is the application of the principles of ecological restoration to islands and island groups. Islands, due to their isolation, are home to many of the world's endemic species, as well as important breeding grounds for seabirds and some marine mammals. Their ecosystems are also very vulnerable to human disturbance and particularly to introduced species, due to their small size. Island groups such as New Zealand and Hawaii have undergone substantial extinctions and losses of habitat. Since the 1950s several organisations and government agencies around the world have worked to restore islands to their original states; New Zealand has used them to hold natural populations of species that would otherwise be unable to survive in the wild. The principal components of island restoration are the removal of introduced species and the reintroduction of native species.