Duffy 2003 Ecol Let - Virginia Institute of Marine Science
... comparatively low vulnerability of large plants is illustrated by the fact that disappearance of a single widespread tree species at the end of the Pleistocene was considered so unusual as to be published in Science (Jackson & Weng 1999). Similarly, in the sea, relentless fishing pressure throughout ...
... comparatively low vulnerability of large plants is illustrated by the fact that disappearance of a single widespread tree species at the end of the Pleistocene was considered so unusual as to be published in Science (Jackson & Weng 1999). Similarly, in the sea, relentless fishing pressure throughout ...
Empirical perspectives on species borders: from traditional
... Environmental Health Sciences, Univ. of California, Los Angeles, CA 90095, USA. ...
... Environmental Health Sciences, Univ. of California, Los Angeles, CA 90095, USA. ...
Extinction and the zoogeography of West Indian land mammals
... concept of stable continents and islands. As a consequence, overwater dispersal was the only credible biogeographic hypothesis that could explain the presence of land mammals on oceanic islands such as the West Indies (Matthew, 1918; Darlington, 1938; Simpson, 1956). Simpson was so sure of a dispers ...
... concept of stable continents and islands. As a consequence, overwater dispersal was the only credible biogeographic hypothesis that could explain the presence of land mammals on oceanic islands such as the West Indies (Matthew, 1918; Darlington, 1938; Simpson, 1956). Simpson was so sure of a dispers ...
A declining species has to be added to the official list of endangered
... determination that its action is not likely to adversely affect listed species or their critical habitat, i.e., an exception to formal consultation. Formal consultation is conducted when the Federal agency determines its action may affect a listed species or its critical habitat and submits a writte ...
... determination that its action is not likely to adversely affect listed species or their critical habitat, i.e., an exception to formal consultation. Formal consultation is conducted when the Federal agency determines its action may affect a listed species or its critical habitat and submits a writte ...
New Zealand native butterflies
... Where land was cleared for farming, the southern blue has been displaced by the common blue. Larvae eat native broom, clovers and trefoils. If they run out of food, they can pupate successfully, resulting in a smaller adult. ...
... Where land was cleared for farming, the southern blue has been displaced by the common blue. Larvae eat native broom, clovers and trefoils. If they run out of food, they can pupate successfully, resulting in a smaller adult. ...
Feathering the Future of Burnett Mary Shorebirds
... Red-necked stint weighs only 30 g (fits into a wine glass!) but can fly up to 2500 km without stopping Shorebirds need to eat up to 1/3 of their body weight each day to satisfy high energy demands important that birds can feed and rest when arrive at destination ...
... Red-necked stint weighs only 30 g (fits into a wine glass!) but can fly up to 2500 km without stopping Shorebirds need to eat up to 1/3 of their body weight each day to satisfy high energy demands important that birds can feed and rest when arrive at destination ...
Ecological effects of invasive alien insects
... on the environment, either through the control of a pest of ecological importance or through pesticide reduction, were excluded. Papers describing a negative impact of phytosanitary methods implemented to control invasive insects were also excluded, as well as those mentioning interference with pest ...
... on the environment, either through the control of a pest of ecological importance or through pesticide reduction, were excluded. Papers describing a negative impact of phytosanitary methods implemented to control invasive insects were also excluded, as well as those mentioning interference with pest ...
The Effects of Urban Sprawl on Birds at Multiple Levels
... 1920), many researchers believed that, for the field of ecology to progress, studies had to occur in areas that were not subject to human pressures (Grimm et al. 2000). This view slowly changed during the 1990s with the publication of the work of Vitousek et al. (1997), which recognized the human do ...
... 1920), many researchers believed that, for the field of ecology to progress, studies had to occur in areas that were not subject to human pressures (Grimm et al. 2000). This view slowly changed during the 1990s with the publication of the work of Vitousek et al. (1997), which recognized the human do ...
here - Ammonia Workshop Edinburgh 2006
... - CLEs are important for nature preservation at more local scale, - are used in air quality regulations - [NH3] can be measured more easily than N deposition ...
... - CLEs are important for nature preservation at more local scale, - are used in air quality regulations - [NH3] can be measured more easily than N deposition ...
Saving the World`s Terrestrial Megafauna
... equest the help of individuals, governments, corporations, and nongovernmental organizations to stop practices that are harmful to these species and to actively engage in helping to reverse declines in megafauna. 8. S trive for increased awareness among the global public of the current megafauna ...
... equest the help of individuals, governments, corporations, and nongovernmental organizations to stop practices that are harmful to these species and to actively engage in helping to reverse declines in megafauna. 8. S trive for increased awareness among the global public of the current megafauna ...
Biodiversity and resilience of arthropod communities after fire
... (e.g. Tinner et al. 2005), thus profoundly altering important ecosystem properties. Only with the introduction of chestnut (C. sativa) cultivation by the Romans 2,000 years ago, was slash and burn agriculture abandoned and fire frequencies returned to lower levels. However, these intermediate levels ...
... (e.g. Tinner et al. 2005), thus profoundly altering important ecosystem properties. Only with the introduction of chestnut (C. sativa) cultivation by the Romans 2,000 years ago, was slash and burn agriculture abandoned and fire frequencies returned to lower levels. However, these intermediate levels ...
animal behavior and conservation biology
... degree to which a population would be placed at risk by environmental change, since specialists may be more vulnerable to disturbance than generalists (Arcese et al. 1997). Nonetheless, species with highly specialized behaviors may be able to expand their repertoire when opportunity or necessity dic ...
... degree to which a population would be placed at risk by environmental change, since specialists may be more vulnerable to disturbance than generalists (Arcese et al. 1997). Nonetheless, species with highly specialized behaviors may be able to expand their repertoire when opportunity or necessity dic ...
Best Management Practices for Wildlife Corridors
... as causing habitat loss, a single freeway (typical width = 50 m, including median and shoulder) crossing diagonally across a 1-mile section of land results in the loss of 4.4% of habitat area for any species that cannot live in the right-of-way. Roads cause habitat fragmentation because they break l ...
... as causing habitat loss, a single freeway (typical width = 50 m, including median and shoulder) crossing diagonally across a 1-mile section of land results in the loss of 4.4% of habitat area for any species that cannot live in the right-of-way. Roads cause habitat fragmentation because they break l ...
petition to list two arizona plants from the sky islands as threatened
... The two plant species presented in this petition-- Bartram stonecrop (Graptopetalum bartramii) and Beardless chinch weed (Pectis imberbis) are in danger of becoming extinct and need Endangered Species Act protection to ensure their continued survival. Bartram stonecrop is a rare succulent known only ...
... The two plant species presented in this petition-- Bartram stonecrop (Graptopetalum bartramii) and Beardless chinch weed (Pectis imberbis) are in danger of becoming extinct and need Endangered Species Act protection to ensure their continued survival. Bartram stonecrop is a rare succulent known only ...
The Endangered Species Act of 1973
... merely to consider the protection of endangered species, rather than a formal and fundamental requirement of preservation. See 5 ENVIR. L. REP. 50189 (1975). For further discussion of ...
... merely to consider the protection of endangered species, rather than a formal and fundamental requirement of preservation. See 5 ENVIR. L. REP. 50189 (1975). For further discussion of ...
Biodiversity and Conservation
... The variety of genes or inheritable characteristics that are present in a population comprises its genetic diversity. Genetic diversity increases the chances that some species will survive during changing environmental conditions or during the outbreak of disease. ...
... The variety of genes or inheritable characteristics that are present in a population comprises its genetic diversity. Genetic diversity increases the chances that some species will survive during changing environmental conditions or during the outbreak of disease. ...
Common gecko - Department of Conservation
... Gardening tips During their life common geckos may travel only very short distances and, so long as your garden provides good, safe habitat, they may be seen in the same parts of your garden for decades. Common geckos are important seed dispersers for many native seeds. Plant an abundance of species ...
... Gardening tips During their life common geckos may travel only very short distances and, so long as your garden provides good, safe habitat, they may be seen in the same parts of your garden for decades. Common geckos are important seed dispersers for many native seeds. Plant an abundance of species ...
Conservation status of Spotted Tree Frog in New South Wales
... undergo metamorphosis (NSW NPWS 2001). Results from mark-recapture experiments indicate that at Bogong Creek a large proportion of individuals live longer than ten years, once they reach adulthood. The oldest individual recorded so far is a female that reached 13 years (Gillespie 1997b). Age to sexu ...
... undergo metamorphosis (NSW NPWS 2001). Results from mark-recapture experiments indicate that at Bogong Creek a large proportion of individuals live longer than ten years, once they reach adulthood. The oldest individual recorded so far is a female that reached 13 years (Gillespie 1997b). Age to sexu ...
Ecology of Estuaries I. Importance of Estuaries
... • freshwater mixes with seawater to create brackish water (0.5-35 ppt salt) ...
... • freshwater mixes with seawater to create brackish water (0.5-35 ppt salt) ...
Full Article - Notornis - Ornithological Society of New Zealand
... Moncorps et al. 1998; Reinhart et al. 2000). Cooperative hunting by the subantarctic skua has been recorded targeting larger seabirds, such as the white-chinned petrel (Procellaria aequinoctialis), grey petrel (P. cinerea) and small unattended chicks of various albatross species (Sinclair 1980). Thi ...
... Moncorps et al. 1998; Reinhart et al. 2000). Cooperative hunting by the subantarctic skua has been recorded targeting larger seabirds, such as the white-chinned petrel (Procellaria aequinoctialis), grey petrel (P. cinerea) and small unattended chicks of various albatross species (Sinclair 1980). Thi ...
Conservation Through Management – Cut Wood as Substrate for
... the last century, conservation biology related to forests is a young discipline, its coming of age in Sweden represented by the first IUCN-adapted Red Lists and their associated educational materials (Ingelög et al. 1984; Ehnström and Waldén 1986). Together with Red Lists from other Scandinavian cou ...
... the last century, conservation biology related to forests is a young discipline, its coming of age in Sweden represented by the first IUCN-adapted Red Lists and their associated educational materials (Ingelög et al. 1984; Ehnström and Waldén 1986). Together with Red Lists from other Scandinavian cou ...
Cryptic species, cryptic endosymbionts, and geographical variation
... 1208 T A M A R A M . M C G O V E R N and M I C H A E L E . H E L L B E R G and with their environments in different ways (Haylor et al. 1984; Knowlton et al. 1992; Mokady & Brickner 2001), and by definition have independent population dynamics. Ecological differences that previously might have been ...
... 1208 T A M A R A M . M C G O V E R N and M I C H A E L E . H E L L B E R G and with their environments in different ways (Haylor et al. 1984; Knowlton et al. 1992; Mokady & Brickner 2001), and by definition have independent population dynamics. Ecological differences that previously might have been ...
a landscape simulation model for understanding animal
... • A population is the group of individuals belonging to a given species in a particular patch. Many of the population's characteristics are determined by the "species" it belongs to. Some of these characteristics do not change during a simulation (" body size," "birth rate," "death rate," "metabolic ...
... • A population is the group of individuals belonging to a given species in a particular patch. Many of the population's characteristics are determined by the "species" it belongs to. Some of these characteristics do not change during a simulation (" body size," "birth rate," "death rate," "metabolic ...
Fact Sheet: Riparian Buffers in Parks
... (Stacey et al. 2006). Dominant species exert the most influence, and thus the greatest functional changes will occur if the abundance of these species is altered (Richardson et al. 2007). The understory (sapling) community reflects a habitats current ecological condition; while overstory (tree) co ...
... (Stacey et al. 2006). Dominant species exert the most influence, and thus the greatest functional changes will occur if the abundance of these species is altered (Richardson et al. 2007). The understory (sapling) community reflects a habitats current ecological condition; while overstory (tree) co ...
The Population Biology of Invasive Species Ann K. Sakai
... Phenotypic plasticity has often been cited as a life-history trait needed for colonization of new areas because colonists must be able to cope with a range of environmental conditions (Baker 1965, 1974, Gray 1986). Comparative and experimental studies of invasive species and non-invasive congeners m ...
... Phenotypic plasticity has often been cited as a life-history trait needed for colonization of new areas because colonists must be able to cope with a range of environmental conditions (Baker 1965, 1974, Gray 1986). Comparative and experimental studies of invasive species and non-invasive congeners m ...
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.