Gymnesic Islands, Western Mediterranean
... the other two small mammalian species is scarce and is not based on directly dated bone collagen. In order to establish the accurate timing and causes of species extinction, it is important to have robust chronological data (MacPhee et al., 1999). Chronological accuracy is particularly required in l ...
... the other two small mammalian species is scarce and is not based on directly dated bone collagen. In order to establish the accurate timing and causes of species extinction, it is important to have robust chronological data (MacPhee et al., 1999). Chronological accuracy is particularly required in l ...
pond permanence and the effects of exotic vertebrates on - Gt-ibma
... six was an exception to this pattern and exhibited increased larval survival rates in the absence of direct effects by exotics. The presence of fish in enclosures reduced survival to near zero for both native species. An effect of bullfrog larvae on Pacific treefrog larval survival was not detected, ...
... six was an exception to this pattern and exhibited increased larval survival rates in the absence of direct effects by exotics. The presence of fish in enclosures reduced survival to near zero for both native species. An effect of bullfrog larvae on Pacific treefrog larval survival was not detected, ...
“The History And Future Of Island Conservation In A Snail Shell”
... c. Do current management options deliver potentially successful reintroduced Partula populations, given the theorised predation parameters within which they are likely to work? 1.2 Creating an island baseline to analyse extinction risk The concept of a baseline within conservation-minded ecology co ...
... c. Do current management options deliver potentially successful reintroduced Partula populations, given the theorised predation parameters within which they are likely to work? 1.2 Creating an island baseline to analyse extinction risk The concept of a baseline within conservation-minded ecology co ...
modeling the role of primary productivity disruption in end
... The trophic network modeled in our analysis is based on the fauna of the Late Permian-age Dicynodon Assemblage Zone of the Karoo Basin of South Africa. The Dicynodon zone is the youngest of six Middle to Late Permian-age terrestrial faunal assemblages found in South Africa, and ends at the Permo-Tri ...
... The trophic network modeled in our analysis is based on the fauna of the Late Permian-age Dicynodon Assemblage Zone of the Karoo Basin of South Africa. The Dicynodon zone is the youngest of six Middle to Late Permian-age terrestrial faunal assemblages found in South Africa, and ends at the Permo-Tri ...
burmese pythons in everglades.full
... consumed by pythons, such as large native snakes and raptors. For some species, indirect effects of pythons may be positive. Reductions in raccoons, which frequently prey on eggs of oviparous amniotes (40), may increase nesting success and recruitment of some turtles, crocodilians, and birds. Attemp ...
... consumed by pythons, such as large native snakes and raptors. For some species, indirect effects of pythons may be positive. Reductions in raccoons, which frequently prey on eggs of oviparous amniotes (40), may increase nesting success and recruitment of some turtles, crocodilians, and birds. Attemp ...
The Green and Golden Bell Frog Parramatta Key Population
... removed much of the natural habitat that once likely connected the current separate populations as a single expansive population. The GGBF habitat in the area is now comprised largely of created waterbodies and other landscape features. Many of these features do or may require ongoing active managem ...
... removed much of the natural habitat that once likely connected the current separate populations as a single expansive population. The GGBF habitat in the area is now comprised largely of created waterbodies and other landscape features. Many of these features do or may require ongoing active managem ...
Management Plan `The Green and Golden Bell Frog Key Population
... Population and the other population remnants (including at Rosebery) in the locality within the Sydney Green and Golden Bell Frog (GGBF) Management Region as identified in the draft NSW GGBF Recovery Plan. This Management Plan has been prepared to primarily ensure that the Arncliffe key population i ...
... Population and the other population remnants (including at Rosebery) in the locality within the Sydney Green and Golden Bell Frog (GGBF) Management Region as identified in the draft NSW GGBF Recovery Plan. This Management Plan has been prepared to primarily ensure that the Arncliffe key population i ...
Defining Biodiversity Assessing Biodiversity
... and political factors are typically more important in the formulation of such policies than purely scientific factors. People live in places and, by and large, have created them, that is, made them that place. Ignoring people--or, worse, excluding them--is why many conservation programs fail miserab ...
... and political factors are typically more important in the formulation of such policies than purely scientific factors. People live in places and, by and large, have created them, that is, made them that place. Ignoring people--or, worse, excluding them--is why many conservation programs fail miserab ...
pdf - New Zealand Ecological Society
... grande was believed once to have been found over much of the central south-eastern region of the South Island of New Zealand (see Berry & Gleeson (2005) for details). Concern over the future of the species has been driven by the belief that the present-day fragmented distribution of skinks into eas ...
... grande was believed once to have been found over much of the central south-eastern region of the South Island of New Zealand (see Berry & Gleeson (2005) for details). Concern over the future of the species has been driven by the belief that the present-day fragmented distribution of skinks into eas ...
Metapopulation Ecology - Department of Ecology and Evolutionary
... small population, and a large patch is more likely to be colonised than a small one as modelled by Hastings and Wolin (1989). The persistence of interacting species has also been modelled using a general form of Levins model, starting with Nee and May (1992). The deterministic models above, interpre ...
... small population, and a large patch is more likely to be colonised than a small one as modelled by Hastings and Wolin (1989). The persistence of interacting species has also been modelled using a general form of Levins model, starting with Nee and May (1992). The deterministic models above, interpre ...
Growling Grass Frog Habitat Assessment and Mapping: PSP 1067
... Ecology Australia was commissioned by the Metropolitan Planning Authority in May 2013 to undertake habitat assessment and mapping, and to subsequently develop a Concept Plan, for the Growling Grass Frog Litoria raniformis within the Donny brook and Woodstock Precinct Structure Plan (PSP) areas. This ...
... Ecology Australia was commissioned by the Metropolitan Planning Authority in May 2013 to undertake habitat assessment and mapping, and to subsequently develop a Concept Plan, for the Growling Grass Frog Litoria raniformis within the Donny brook and Woodstock Precinct Structure Plan (PSP) areas. This ...
KoalaS and Climate Change
... for further changing their behaviour. If females are unable to produce joeys to replace Koalas that die of old age, populations will dwindle and eventually disappear. Increasing droughts and bushfires: Koalas’ warm fur and thick skin enables them to endure cold conditions in southern Australia, but ...
... for further changing their behaviour. If females are unable to produce joeys to replace Koalas that die of old age, populations will dwindle and eventually disappear. Increasing droughts and bushfires: Koalas’ warm fur and thick skin enables them to endure cold conditions in southern Australia, but ...
KoalaS and Climate Change
... for further changing their behaviour. If females are unable to produce joeys to replace Koalas that die of old age, populations will dwindle and eventually disappear. Increasing droughts and bushfires: Koalas’ warm fur and thick skin enables them to endure cold conditions in southern Australia, but ...
... for further changing their behaviour. If females are unable to produce joeys to replace Koalas that die of old age, populations will dwindle and eventually disappear. Increasing droughts and bushfires: Koalas’ warm fur and thick skin enables them to endure cold conditions in southern Australia, but ...
Colonization in metapopulations: a review of
... stochasticity) a good colonizer should have a high ratio of natality to mortality, best achieved through low mortality. Otherwise, a high and invariable r is advantageous, unless the bad times can be averaged out with a low rate of mortality. The ratio Alp has no dimension, whereas r is expressed pe ...
... stochasticity) a good colonizer should have a high ratio of natality to mortality, best achieved through low mortality. Otherwise, a high and invariable r is advantageous, unless the bad times can be averaged out with a low rate of mortality. The ratio Alp has no dimension, whereas r is expressed pe ...
2. review of toheroa in new zealand
... The toheroa is an important shellfish in New Zealand and is highly valued by Māori. In the first half of the twentieth century it was harvested commercially in large numbers. Unfortunately, because of population decline, only limited cultural harvest is currently permitted throughout New Zealand. Nu ...
... The toheroa is an important shellfish in New Zealand and is highly valued by Māori. In the first half of the twentieth century it was harvested commercially in large numbers. Unfortunately, because of population decline, only limited cultural harvest is currently permitted throughout New Zealand. Nu ...
vamosi and schluter 2004
... southwestern British Columbia and compared them with the same traits in nearby allopatric populations in the presence of the same predatory fish (Oncorhynchus sp.). This approach is analogous to tests of ecological character displacement that compare trophic traits of sympatric and allopatric specie ...
... southwestern British Columbia and compared them with the same traits in nearby allopatric populations in the presence of the same predatory fish (Oncorhynchus sp.). This approach is analogous to tests of ecological character displacement that compare trophic traits of sympatric and allopatric specie ...
(1999) Consequences of the Allee effect for behaviour, ecology and
... a situation that might arise in a flock of another species, where collective vigilance shows little increase above a small number of birds, but in flocks below that size, mortality due to predation is almost 100%). ...
... a situation that might arise in a flock of another species, where collective vigilance shows little increase above a small number of birds, but in flocks below that size, mortality due to predation is almost 100%). ...
Habitat Fragmentation – In Theory
... This study examines the effects of habitat fragmentation on the carabid beetle species richness and abundance in fragmented forest habitats relative to non fragmented forest habitats. Based on previous studies, Davies and Margules hypothesized that carabid beetle species richness would decrease in ...
... This study examines the effects of habitat fragmentation on the carabid beetle species richness and abundance in fragmented forest habitats relative to non fragmented forest habitats. Based on previous studies, Davies and Margules hypothesized that carabid beetle species richness would decrease in ...
international carnivore conservation and management with
... core areas and corridors may vary from species to species, contiguous habitat is a common requirement for large carnivores. Core areas are areas where human uses are greatly restricted and natural processes reign. Core areas refer to areas where conservation of biodiversity, ecological integrity, wi ...
... core areas and corridors may vary from species to species, contiguous habitat is a common requirement for large carnivores. Core areas are areas where human uses are greatly restricted and natural processes reign. Core areas refer to areas where conservation of biodiversity, ecological integrity, wi ...
HABITAT DESCRIPTIONS: UPLAND HABITATS
... biodiversity conservation, and produces educational publications on natural history and conservation topics. Hudsonia does not support or oppose development proposals or land use changes; rather, we conduct scientific studies and provide full resulting data, analysis, and recommendations to landowne ...
... biodiversity conservation, and produces educational publications on natural history and conservation topics. Hudsonia does not support or oppose development proposals or land use changes; rather, we conduct scientific studies and provide full resulting data, analysis, and recommendations to landowne ...
here - cloudfront.net
... for the vulnerable koala (Phasocolarctos cinereus) in Queensland, New South Wales and the Australian Capital Territory (Draft Koala Guidelines or Guidelines). Our submission has been prepared with the assistance of the EDO NSW science team, and ecologists with expertise in koalas. ANEDO has extensiv ...
... for the vulnerable koala (Phasocolarctos cinereus) in Queensland, New South Wales and the Australian Capital Territory (Draft Koala Guidelines or Guidelines). Our submission has been prepared with the assistance of the EDO NSW science team, and ecologists with expertise in koalas. ANEDO has extensiv ...
Current Status, Distribution, and Conservation of the Burrowing Owl
... Abstract.—The Burrowing Owl (Speotyto cunicularia) inhabits open prairie grassland habitat in the midwestern and western US and Canada. For several years now, numbers of this species in North America have been declining at an alarming rate. Currently, Burrowing Owls are listed as endangered in Canad ...
... Abstract.—The Burrowing Owl (Speotyto cunicularia) inhabits open prairie grassland habitat in the midwestern and western US and Canada. For several years now, numbers of this species in North America have been declining at an alarming rate. Currently, Burrowing Owls are listed as endangered in Canad ...
Megafauna and ecosystem function from the
... charisma, but, beyond these impacts, such large animals have profound and distinct effects on the nature and functioning of the ecosystems they inhabit. Martin (8) first posited a major human role in past megafaunal disappearances, and, since then, much has been written on their patterns and causes ...
... charisma, but, beyond these impacts, such large animals have profound and distinct effects on the nature and functioning of the ecosystems they inhabit. Martin (8) first posited a major human role in past megafaunal disappearances, and, since then, much has been written on their patterns and causes ...
Patterns of Genetic Differentiation in Appalachian Desmognathine
... complex have revealed complex patterns of genetic fragmentation among populations and species. Populations of D. carolinensls within the Black and Great Craggy Mountains of western North Carolina exhibit pronounced variation In allozyme frequencies at five polymorphic loci. Allozyme frequencies at o ...
... complex have revealed complex patterns of genetic fragmentation among populations and species. Populations of D. carolinensls within the Black and Great Craggy Mountains of western North Carolina exhibit pronounced variation In allozyme frequencies at five polymorphic loci. Allozyme frequencies at o ...
The interplay between habitat structure and chemical
... the success of their predatory strategies (e.g., Karkarey et al., 2014), or through the provision of resources that can mitigate the impacts of disturbances (e.g., shelter and food; Caley & StJohn, 1996; Syms & Jones, 2000). Complex habitats can also facilitate recovery (e.g., Kovalenko, Thomaz & Wa ...
... the success of their predatory strategies (e.g., Karkarey et al., 2014), or through the provision of resources that can mitigate the impacts of disturbances (e.g., shelter and food; Caley & StJohn, 1996; Syms & Jones, 2000). Complex habitats can also facilitate recovery (e.g., Kovalenko, Thomaz & Wa ...
Decline in amphibian populations
Since the 1980s, declines in amphibian populations, including population crashes and mass localized extinctions, have been noted from locations all over the world. These declines are perceived as one of the most critical threats to global biodiversity, and several causes are believed to be involved, including disease, habitat destruction and modification, exploitation, pollution, pesticide use, introduced species, and ultraviolet-B radiation (UV-B). However, many of the causes of amphibian declines are still poorly understood, and the topic is currently a subject of much ongoing research. Calculations based on extinction rates suggest that the current extinction rate of amphibians could be 211 times greater than the background extinction rate and the estimate goes up to 25,000–45,000 times if endangered species are also included in the computation.