Hibernation and daily torpor minimize mammalian extinctions
... (Humphries et al. 2002), may stand a better chance of surviving future energetic challenges than homeothermic species (Liow et al. 2009). Global warming is predicted to alter local weather patterns and increase the frequency and intensity of severe events, such as droughts, fires, storms, and floods ...
... (Humphries et al. 2002), may stand a better chance of surviving future energetic challenges than homeothermic species (Liow et al. 2009). Global warming is predicted to alter local weather patterns and increase the frequency and intensity of severe events, such as droughts, fires, storms, and floods ...
The habitat condition data dictionary
... Limiting factor lists mix ecological processes operating over a wide variety of spatial and temporal scales ...
... Limiting factor lists mix ecological processes operating over a wide variety of spatial and temporal scales ...
Cradle or museum?
... There are a range of factors that probably contribute differentially depending on the taxon. ...
... There are a range of factors that probably contribute differentially depending on the taxon. ...
DIVERSITY HYPOTHESIS
... There are a range of factors that probably contribute differentially depending on the taxon. ...
... There are a range of factors that probably contribute differentially depending on the taxon. ...
Habitat Fragmentation – In Theory
... habitats. Based on previous studies, Davies and Margules hypothesized that carabid beetle species richness would decrease in fragmented habitats, and carabid beetle abundance would decrease with the occurrence of fragmentation, with decreasing size of the fragment, and with proximity to the edge of ...
... habitats. Based on previous studies, Davies and Margules hypothesized that carabid beetle species richness would decrease in fragmented habitats, and carabid beetle abundance would decrease with the occurrence of fragmentation, with decreasing size of the fragment, and with proximity to the edge of ...
Weighting and indirect effects identify keystone species in food webs
... There has been a tradition of binary descriptions in many network studies, reflecting the relative ease of data collection, but there is a growing appreciation that this qualitative network structure is often uninformative (Jord an et al. 2006). An increasing number of studies now consider weighted ...
... There has been a tradition of binary descriptions in many network studies, reflecting the relative ease of data collection, but there is a growing appreciation that this qualitative network structure is often uninformative (Jord an et al. 2006). An increasing number of studies now consider weighted ...
Resource partitioning between ungulate populations in arid
... biomass and vegetative cover relative to more mesic systems, with high spatiotemporal variability driven by ...
... biomass and vegetative cover relative to more mesic systems, with high spatiotemporal variability driven by ...
Replacing Sources with Sinks: When Do Populations Go Down the
... by no means the only one in which land is converted into habitat with lower value to wildlife populations. When prairies are converted into grazed grasslands, or forests into fragmented woodlots, there is no legal requirement to provide mitigation, but negative ecological impacts occur, nonetheless. ...
... by no means the only one in which land is converted into habitat with lower value to wildlife populations. When prairies are converted into grazed grasslands, or forests into fragmented woodlots, there is no legal requirement to provide mitigation, but negative ecological impacts occur, nonetheless. ...
The effect of habitat heterogeneity on species diversity patterns: a
... also play a role in the way different scales of environmental heterogeneity affect different species (Levin, 1992). For example, Robinson et al. (1992) showed that three small mammal species differing in body size (Sigmodon hispidus, 135 g; Microtus ochogaster, 43 g; Peromyscus maniculatus, 22 g), e ...
... also play a role in the way different scales of environmental heterogeneity affect different species (Levin, 1992). For example, Robinson et al. (1992) showed that three small mammal species differing in body size (Sigmodon hispidus, 135 g; Microtus ochogaster, 43 g; Peromyscus maniculatus, 22 g), e ...
Impacts of climate change on the future of biodiversity
... populations due to directional selection and rapid migration, which could in turn affect ecosystem functioning and resilience (Botkin et al. 2007 but, see Meyers & Bull 2002). However, most studies are centred on impacts at higher organisational levels, and genetic effects of climate change have bee ...
... populations due to directional selection and rapid migration, which could in turn affect ecosystem functioning and resilience (Botkin et al. 2007 but, see Meyers & Bull 2002). However, most studies are centred on impacts at higher organisational levels, and genetic effects of climate change have bee ...
Return of the Vultures
... proposed using the vulture safe drug meloxicam which they found was as effective as diclofenac. As a precaution, they emphasised the importance of establishing a captive breeding conservation programme to help maintain wild vulture populations. This is especially important as any improvements in vul ...
... proposed using the vulture safe drug meloxicam which they found was as effective as diclofenac. As a precaution, they emphasised the importance of establishing a captive breeding conservation programme to help maintain wild vulture populations. This is especially important as any improvements in vul ...
Has the ghost of competition passed?
... effects arise from constant habitat-dependent competition. The habitat effect is easily estimated from census data by the use of habitat isodars (lines along which expected fitness is identical in both habitats). The isodar solutions not only reveal the ghost of competition, they can be used as a co ...
... effects arise from constant habitat-dependent competition. The habitat effect is easily estimated from census data by the use of habitat isodars (lines along which expected fitness is identical in both habitats). The isodar solutions not only reveal the ghost of competition, they can be used as a co ...
Shrublands habitat profile in the NH Wildlife Action Plan
... glacial outwash deposits of major river valleys where food was plentiful (Whitney 1994). Pitch pine-scrub oak barrens occur in these areas (Howard et al. 2005). The result of Native American burning was a mosaic of habitat types in different states of succession, likely including native scrub oak sh ...
... glacial outwash deposits of major river valleys where food was plentiful (Whitney 1994). Pitch pine-scrub oak barrens occur in these areas (Howard et al. 2005). The result of Native American burning was a mosaic of habitat types in different states of succession, likely including native scrub oak sh ...
Part 2 - Management Plan Rev S - clean version
... 2012j) It has reddish brown fur dorsally, with cream coloured fur on its ventral surface. White spots are present on its back and rump although the tails is unspotted. The Northern quoll has a pointy snout. The Northern quoll is a solitary carnivorous marsupial that makes its dens in rock crevices, ...
... 2012j) It has reddish brown fur dorsally, with cream coloured fur on its ventral surface. White spots are present on its back and rump although the tails is unspotted. The Northern quoll has a pointy snout. The Northern quoll is a solitary carnivorous marsupial that makes its dens in rock crevices, ...
The interplay between environmental conditions and Allee effects
... As a result of the combined influence of Allee effects and demographic stochasticity, the probability of establishment for a small population colonizing new habitat tends to increase as the initial number of individuals in a population increases (Dennis 2002). This relationship has been adopted as a ...
... As a result of the combined influence of Allee effects and demographic stochasticity, the probability of establishment for a small population colonizing new habitat tends to increase as the initial number of individuals in a population increases (Dennis 2002). This relationship has been adopted as a ...
Genetic diversity
... The current mass extinction is human caused • During this Quaternary period, we may lose more than half of all species - Hundreds of human-induced species extinctions, and multitudes of others, teeter on the brink of extinction • The current global extinction rate is 100 to 1,000 times greater than ...
... The current mass extinction is human caused • During this Quaternary period, we may lose more than half of all species - Hundreds of human-induced species extinctions, and multitudes of others, teeter on the brink of extinction • The current global extinction rate is 100 to 1,000 times greater than ...
Submission - Friends of Felton
... assessment of a project. Currently, the EPBC Act 1999 provides no mechanisms for the impacts of mining on the koala to be considered because the species is not listed as threatened and often, as in the case of Felton, nor are the vegetation communities. Nor does the EPBC Act 1999 adequately address ...
... assessment of a project. Currently, the EPBC Act 1999 provides no mechanisms for the impacts of mining on the koala to be considered because the species is not listed as threatened and often, as in the case of Felton, nor are the vegetation communities. Nor does the EPBC Act 1999 adequately address ...
The controversy space on Quaternary megafaunal extinctions
... space has stages of conceptual stagnation or conceptual blockage, and stages of conceptual unblockage in which the controversy space recovers its initial momentum. The aim of this paper is to analyze the historical pattern of conceptual change in the debate on the causes of Quaternary extinctions us ...
... space has stages of conceptual stagnation or conceptual blockage, and stages of conceptual unblockage in which the controversy space recovers its initial momentum. The aim of this paper is to analyze the historical pattern of conceptual change in the debate on the causes of Quaternary extinctions us ...
Dynamics of ecological communities in variable environments
... change both temporally and spatially, such as climatic factors (Ruokolainen et al. 2009). Variation in the environment can affect species vital rates directly or indirectly mediated through species interactions (Ives et al. 2004). Time series of an environmental variable is described by its mean and ...
... change both temporally and spatially, such as climatic factors (Ruokolainen et al. 2009). Variation in the environment can affect species vital rates directly or indirectly mediated through species interactions (Ives et al. 2004). Time series of an environmental variable is described by its mean and ...
KREMEN 2005 Managing Ecosystem Services_What Do We Need
... and (4) measuring the spatio-temporal scale over which providers and services operate. While each of these sub-topics is a subject of active research in ecology, this approach will be most useful in influencing environmental policy and land-use planning when applied in its entirety. For maximum effe ...
... and (4) measuring the spatio-temporal scale over which providers and services operate. While each of these sub-topics is a subject of active research in ecology, this approach will be most useful in influencing environmental policy and land-use planning when applied in its entirety. For maximum effe ...
The Gopher Tortoise - Gopher Tortoise Council
... roads, move tortoise to nearest habitat (preferably in direction it was heading) BEWARE OF TRAFFIC! ...
... roads, move tortoise to nearest habitat (preferably in direction it was heading) BEWARE OF TRAFFIC! ...
File - Cook Biology
... • Most species loss can be traced to three major threats: – Habitat destruction – Introduced species – Overexploitation ...
... • Most species loss can be traced to three major threats: – Habitat destruction – Introduced species – Overexploitation ...
climate change and connectivity: are corridors the solution?
... are considered in light of current and ongoing climatic changes like rising temperatures and an increased fluctuation in weather patterns. The chosen studies examine the different roles of corridors: immigration, movement, prevention of genetic drift, and reducing the effects of demographic stochast ...
... are considered in light of current and ongoing climatic changes like rising temperatures and an increased fluctuation in weather patterns. The chosen studies examine the different roles of corridors: immigration, movement, prevention of genetic drift, and reducing the effects of demographic stochast ...
Intertidal Underboulder Communities
... to the biodiversity of a shore. The presence of boulders on a shore may also lead to local modification to wave exposure, current strength and levels of trapped organic matter in the area surrounding the boulders themselves. Altering the physical environment in this way results in an enhancement to ...
... to the biodiversity of a shore. The presence of boulders on a shore may also lead to local modification to wave exposure, current strength and levels of trapped organic matter in the area surrounding the boulders themselves. Altering the physical environment in this way results in an enhancement to ...
Metapopulation Ecology - Department of Ecology and Evolutionary
... given instant, and there is limited migration between local populations. Several ecological processes characterise metapopulations: (1) frequent local extinction and (2) long-term survival of the metapopulation being dependent on colonisation through local dispersal. In a strict metapopulation, the ...
... given instant, and there is limited migration between local populations. Several ecological processes characterise metapopulations: (1) frequent local extinction and (2) long-term survival of the metapopulation being dependent on colonisation through local dispersal. In a strict metapopulation, the ...