Coastal Plain Endemism and its implications for biodiversity
... Stewart, Gordon, Avon Park, etc.) • State conservation lands • Some large private preserves (TNC) ...
... Stewart, Gordon, Avon Park, etc.) • State conservation lands • Some large private preserves (TNC) ...
J. L. Burnett and K. E. Sieving: RAPTOR DETECTION
... at mist nets. Therefore, we investigated the utility of songbird distress calls to invoke prey inspection behavior by raptors. Distress calls are elicited under a variety of conditions when individuals perceive imminent harm or experience contact with an attacker (Norris & Stamm 1965). Among the fun ...
... at mist nets. Therefore, we investigated the utility of songbird distress calls to invoke prey inspection behavior by raptors. Distress calls are elicited under a variety of conditions when individuals perceive imminent harm or experience contact with an attacker (Norris & Stamm 1965). Among the fun ...
European Code of Conduct on Zoological Gardens and
... and cause serious economic damage, endangering the ecosystem services we rely on and affect negatively many socio-economic interests, including agriculture, forestry and fisheries. Past introductions have usually occurred with little awareness of the potential negative consequences of IAS, but in re ...
... and cause serious economic damage, endangering the ecosystem services we rely on and affect negatively many socio-economic interests, including agriculture, forestry and fisheries. Past introductions have usually occurred with little awareness of the potential negative consequences of IAS, but in re ...
Population, community and ecosystem effects of
... species have been reported to greatly alter native diversity, transforming native ecosystems as well as contributing to the extinction of endangered species, creating important management challenges (Mack et al. 2000). For example, on Macquarie Island, Australia the removal of feral cats led to a tr ...
... species have been reported to greatly alter native diversity, transforming native ecosystems as well as contributing to the extinction of endangered species, creating important management challenges (Mack et al. 2000). For example, on Macquarie Island, Australia the removal of feral cats led to a tr ...
pptx
... “If some mechanism promotes the coexistence of two or more species, each species must be able to increase when it is rare and the others are at their typical abundances; this invasibility criterion is fundamental evidence for species coexistence regardless of the mechanism.” “some subset of the co-o ...
... “If some mechanism promotes the coexistence of two or more species, each species must be able to increase when it is rare and the others are at their typical abundances; this invasibility criterion is fundamental evidence for species coexistence regardless of the mechanism.” “some subset of the co-o ...
Experimentally assessing the relative
... viability selection on island populations of A. sagrei. Predation could still contribute to variation in the form of selection, but its effects are clearly weak relative to those of competition. Larger numbers of experimental replicates may be required to demonstrate any significant effects of preda ...
... viability selection on island populations of A. sagrei. Predation could still contribute to variation in the form of selection, but its effects are clearly weak relative to those of competition. Larger numbers of experimental replicates may be required to demonstrate any significant effects of preda ...
Is a healthy ecosystem one that is rich in parasites?
... where parasites are thought to have had a role in a species decline, the pathogen has spilled over from one host species into another species where there is little coevolutionary history, the wild animal equivalent of an emerging human disease. Such effects are not going to benefit ecosystem functio ...
... where parasites are thought to have had a role in a species decline, the pathogen has spilled over from one host species into another species where there is little coevolutionary history, the wild animal equivalent of an emerging human disease. Such effects are not going to benefit ecosystem functio ...
Population, community and ecosystem effects of exotic herbivores: A
... species have been reported to greatly alter native diversity, transforming native ecosystems as well as contributing to the extinction of endangered species, creating important management challenges (Mack et al. 2000). For example, on Macquarie Island, Australia the removal of feral cats led to a tr ...
... species have been reported to greatly alter native diversity, transforming native ecosystems as well as contributing to the extinction of endangered species, creating important management challenges (Mack et al. 2000). For example, on Macquarie Island, Australia the removal of feral cats led to a tr ...
Apparent predation risk: tests of habitat selection theory reveal
... competition would reveal less use of the risky patch with every reduction in the density of competitors. The increased cost of predation in the presence of competitors is real, but could not be attributed to either an increase in predator numbers or predator behaviour. I refer to such cases as ‘appa ...
... competition would reveal less use of the risky patch with every reduction in the density of competitors. The increased cost of predation in the presence of competitors is real, but could not be attributed to either an increase in predator numbers or predator behaviour. I refer to such cases as ‘appa ...
assessment
... (Clifton et al. 2006, SKM 2008). The scale of recent and anticipated changes will alter flow regimes, water quality and groundwater recharge in regional water-dependent ecosystems. As noted, the limited habitat and small size of the population make the mussels vulnerable to a variety of threats. Man ...
... (Clifton et al. 2006, SKM 2008). The scale of recent and anticipated changes will alter flow regimes, water quality and groundwater recharge in regional water-dependent ecosystems. As noted, the limited habitat and small size of the population make the mussels vulnerable to a variety of threats. Man ...
Species, trophic, and functional diversity in marine
... is beyond the goal of protecting particular species or areas with economical or cultural value. However, most data on the effects of MPAs focus on target species and there is limited evidence for the consequences of protection at larger levels of organization. Quantitative information on the reserve ...
... is beyond the goal of protecting particular species or areas with economical or cultural value. However, most data on the effects of MPAs focus on target species and there is limited evidence for the consequences of protection at larger levels of organization. Quantitative information on the reserve ...
Technical manual for sampling small mammals in the Arctic
... The length of the transect will depend on the answers to the following questions: A– What am I sampling? B– Are all important habitats covered? C– How many transects should be made to cover all the study area? Based on experience, 500 m is often a good compromise between having transects long enough ...
... The length of the transect will depend on the answers to the following questions: A– What am I sampling? B– Are all important habitats covered? C– How many transects should be made to cover all the study area? Based on experience, 500 m is often a good compromise between having transects long enough ...
Food Webs, Models and Species Extinctions in a
... environmental stochasticity, (b) why different species are more or less extinction prone, and (c) whether we can predict imminent extinctions. Or, more specifically: (a) Are there certain types of species that become endangered or die out more often than other species? (b) What characteristics of ec ...
... environmental stochasticity, (b) why different species are more or less extinction prone, and (c) whether we can predict imminent extinctions. Or, more specifically: (a) Are there certain types of species that become endangered or die out more often than other species? (b) What characteristics of ec ...
pptx
... “If some mechanism promotes the coexistence of two or more species, each species must be able to increase when it is rare and the others are at their typical abundances; this invasibility criterion is fundamental evidence for species coexistence regardless of the mechanism.” “some subset of the co-o ...
... “If some mechanism promotes the coexistence of two or more species, each species must be able to increase when it is rare and the others are at their typical abundances; this invasibility criterion is fundamental evidence for species coexistence regardless of the mechanism.” “some subset of the co-o ...
State of the Art Report - 4rd. draft
... agents which contribute towards the disturbance effect caused by transportation infrastructure. Most of these pollutants accumulate in close proximity to the infrastructure but, in some cases, direct effects on vegetation and fauna can be observed at distances over several hundreds of metres away (e ...
... agents which contribute towards the disturbance effect caused by transportation infrastructure. Most of these pollutants accumulate in close proximity to the infrastructure but, in some cases, direct effects on vegetation and fauna can be observed at distances over several hundreds of metres away (e ...
Recovery Strategy for Puget Oregonian Snail (Cryptomastix devia
... fulfilling its commitments under the Accord for the Protection of Species at Risk in Canada, and the Canada – British Columbia Agreement on Species at Risk. This document identifies the recovery strategies that are deemed necessary, based on the best available scientific and traditional information, ...
... fulfilling its commitments under the Accord for the Protection of Species at Risk in Canada, and the Canada – British Columbia Agreement on Species at Risk. This document identifies the recovery strategies that are deemed necessary, based on the best available scientific and traditional information, ...
Weighting and indirect effects identify keystone species in food webs
... to various extinction scenarios. Link weight and/or indirect effects had stronger effects on foodweb stability than the simple removal of ‘hubs’, demonstrating that both quantitative fluxes and species dissipating their effects across many links should be of great concern in biodiversity conservatio ...
... to various extinction scenarios. Link weight and/or indirect effects had stronger effects on foodweb stability than the simple removal of ‘hubs’, demonstrating that both quantitative fluxes and species dissipating their effects across many links should be of great concern in biodiversity conservatio ...
the economics of biodiversity
... maximizes the diversity measure D0 (π). The essential tension in this optimization problem is between the safety provided by a large number of patches and the corresponding large number of potentially harmful pests. 2.2. Measures based on joint dissimilarity The focus of the rest of this section is ...
... maximizes the diversity measure D0 (π). The essential tension in this optimization problem is between the safety provided by a large number of patches and the corresponding large number of potentially harmful pests. 2.2. Measures based on joint dissimilarity The focus of the rest of this section is ...
doc - ChinCare.com
... been close enough to describe in detail their behavior. However, the locals assure me that, if I just try this one spot, I will see elusive endangered chinchillas up close and personal. So, I sit and wait for nightfall. Tonight seems like all other nights out in the mountains—cold, very dark and pea ...
... been close enough to describe in detail their behavior. However, the locals assure me that, if I just try this one spot, I will see elusive endangered chinchillas up close and personal. So, I sit and wait for nightfall. Tonight seems like all other nights out in the mountains—cold, very dark and pea ...
Phenotypic and phylogenetic evidence for the role of food and
... the ways species’ similarities and differences govern their co-occurrence. Hypotheses about community assembly involve one or both of (a) environmental filtering, in which species sharing certain environmental tolerances or habitat requirements co-occur in locations meeting those criteria, and (b) re ...
... the ways species’ similarities and differences govern their co-occurrence. Hypotheses about community assembly involve one or both of (a) environmental filtering, in which species sharing certain environmental tolerances or habitat requirements co-occur in locations meeting those criteria, and (b) re ...
INTERMEDIATE DISTURBANCE AND ITS RELATIONSHIP TO
... whether or not there are mechanisms in lakes that can create patches at appropriate spatial and temporal scales. In addition, Wilson (1994) poses the more general question of whether or not the intermediate disturbance hypothesis applies to within- or between-patch scales. The first two issues refle ...
... whether or not there are mechanisms in lakes that can create patches at appropriate spatial and temporal scales. In addition, Wilson (1994) poses the more general question of whether or not the intermediate disturbance hypothesis applies to within- or between-patch scales. The first two issues refle ...
Plant species traits are the predominant control on
... from published and unpublished sources based on experimental multi-species incubations (see Appendix S1). In most cases, the data were contributed directly by the lead author of the original experiment, allowing the original researcher to classify species functional traits and to include unpublished ...
... from published and unpublished sources based on experimental multi-species incubations (see Appendix S1). In most cases, the data were contributed directly by the lead author of the original experiment, allowing the original researcher to classify species functional traits and to include unpublished ...
Network structure beyond food webs: mapping non
... trophic interactions can often be observed in the field, either directly or using simple methods such as the examination of gut contents. Second, unlike the binary nature of trophic interactions (e.g., a predator either eats the prey species or does not), the net outcome of most non-trophic interacti ...
... trophic interactions can often be observed in the field, either directly or using simple methods such as the examination of gut contents. Second, unlike the binary nature of trophic interactions (e.g., a predator either eats the prey species or does not), the net outcome of most non-trophic interacti ...
Network structure beyond food webs: mapping nontrophic and
... trophic interactions can often be observed in the field, either directly or using simple methods such as the examination of gut contents. Second, unlike the binary nature of trophic interactions (e.g., a predator either eats the prey species or does not), the net outcome of most non-trophic interacti ...
... trophic interactions can often be observed in the field, either directly or using simple methods such as the examination of gut contents. Second, unlike the binary nature of trophic interactions (e.g., a predator either eats the prey species or does not), the net outcome of most non-trophic interacti ...
Chapter 54(Community Ecology)
... • Species richness generally declines along an equatorial-polar gradient and is especially great in the tropics • Two key factors in equatorial-polar gradients of species richness are probably evolutionary history and climate • The greater age of tropical environments may account for the greater spe ...
... • Species richness generally declines along an equatorial-polar gradient and is especially great in the tropics • Two key factors in equatorial-polar gradients of species richness are probably evolutionary history and climate • The greater age of tropical environments may account for the greater spe ...
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.