POPULATION VIABILITY ANALYSIS Mark S. Boyce Journal Article
... populations, the target of most PVA (121). In a sense, the distinction between deterministic and stochastic processes in ecology is artificial because all ecological processes are stochastic. Mapard Smith (97) points out that “the use of deterministic rather than stochastic models can only be justif ...
... populations, the target of most PVA (121). In a sense, the distinction between deterministic and stochastic processes in ecology is artificial because all ecological processes are stochastic. Mapard Smith (97) points out that “the use of deterministic rather than stochastic models can only be justif ...
A Landowner`s Guide
... for protecting and promoting natural resources and wildlife Fences are an increasing concern for conservation efforts in regions such as Sonoma County where the human population is growing in rural or formerly undeveloped areas. Fences that prevent wildlife from moving as they need to—not all fences ...
... for protecting and promoting natural resources and wildlife Fences are an increasing concern for conservation efforts in regions such as Sonoma County where the human population is growing in rural or formerly undeveloped areas. Fences that prevent wildlife from moving as they need to—not all fences ...
Environmental and genetic cues in the evolution of phenotypic
... phenotype could be the level of investment in defense. The risk of predation might be variable in one habitat, but uniformly low (or uniformly high) in another. With gene flow between habitats, one may expect a genetic polymorphism, with genes for inducible development reaching higher frequency in o ...
... phenotype could be the level of investment in defense. The risk of predation might be variable in one habitat, but uniformly low (or uniformly high) in another. With gene flow between habitats, one may expect a genetic polymorphism, with genes for inducible development reaching higher frequency in o ...
Woylie declines: what are the causes?
... losses within two to five years with few or no signs of a subsequent recovery. There are now less than 2000 individuals estimated remaining within the last four indigenous populations (Perup, Greater Kingston, Dryandra and Tutanning), which despite the low numbers still support high levels of geneti ...
... losses within two to five years with few or no signs of a subsequent recovery. There are now less than 2000 individuals estimated remaining within the last four indigenous populations (Perup, Greater Kingston, Dryandra and Tutanning), which despite the low numbers still support high levels of geneti ...
Local genetic differentiation and adaptation in freshwater
... well-defined phase of sexual reproduction, surviving harsh periods (drying out or freezing of the pond) as resting stages. It was found that populations living in intermittent habitats were characterized by high genetic diversity and relatively stable genotype frequencies that are in close agreement ...
... well-defined phase of sexual reproduction, surviving harsh periods (drying out or freezing of the pond) as resting stages. It was found that populations living in intermittent habitats were characterized by high genetic diversity and relatively stable genotype frequencies that are in close agreement ...
Behavior and conservation: a bridge too far?
... constricted underpasses [35], and microtine rodents completely avoided overpasses [36]. This research helps solve the problem of the best way to facilitate population and gene flow in species whose habitats are fragmented by roads, and addresses these issues for several species simultaneously (Step 3 ...
... constricted underpasses [35], and microtine rodents completely avoided overpasses [36]. This research helps solve the problem of the best way to facilitate population and gene flow in species whose habitats are fragmented by roads, and addresses these issues for several species simultaneously (Step 3 ...
Livestock predation by lions, leopards, spotted hyenas
... killing of large carnivores. This is perhaps the most serious threat facing large carnivores amidst the ever-expanding human population. Most protected areas are too small to support wide-ranging carnivores. Such species must utilize adjacent dispersal areas for supplementary food (Woodroffe & Frank ...
... killing of large carnivores. This is perhaps the most serious threat facing large carnivores amidst the ever-expanding human population. Most protected areas are too small to support wide-ranging carnivores. Such species must utilize adjacent dispersal areas for supplementary food (Woodroffe & Frank ...
Wild Mammals in Captivity: Principles and Techniques for Zoo
... the integration of these biological data collected sequentially on individual animals, for individuals perceive stressors differently as a function of their age, sex, background, personality, or reproductive condition (Benus, Koolhaas, and van Oortmerssen ; Suomi ; Mason, Mendoza, and Moberg ...
... the integration of these biological data collected sequentially on individual animals, for individuals perceive stressors differently as a function of their age, sex, background, personality, or reproductive condition (Benus, Koolhaas, and van Oortmerssen ; Suomi ; Mason, Mendoza, and Moberg ...
Marker, L. (2005). Cheetah conservation in Namibia. Animal
... In Namibia, cheetahs have long been persecuted due to conflict with local farmers, and the population has suffered high levels of “off take” as a result, with 6,829 wild cheetahs reported killed or placed in captivity during the 1980s alone (CITES, 1992; Marker-Kraus et al., 1996). Understanding the ...
... In Namibia, cheetahs have long been persecuted due to conflict with local farmers, and the population has suffered high levels of “off take” as a result, with 6,829 wild cheetahs reported killed or placed in captivity during the 1980s alone (CITES, 1992; Marker-Kraus et al., 1996). Understanding the ...
Comments on the nature of deception
... cryptic and aposematic animals. But is the hiss of a grass s n J e , for example, deimatic behaviour, or is it mimicking the hiss of a poisonous snake-in England, an adder? As Vane-Wright commented in his interesting letter already referred to, “Perhaps mimicry is about species, or groups of species ...
... cryptic and aposematic animals. But is the hiss of a grass s n J e , for example, deimatic behaviour, or is it mimicking the hiss of a poisonous snake-in England, an adder? As Vane-Wright commented in his interesting letter already referred to, “Perhaps mimicry is about species, or groups of species ...
Case Studies II
... There is evidence to suggest inbreeding may be or become important. It’s evidence that females don’t disperse far enough from their natal territories to avoid inbreeding (Maehr, et al. 2002). Females move, on average, only 20.3 km, and this is less than the width of one home range. Males go further ...
... There is evidence to suggest inbreeding may be or become important. It’s evidence that females don’t disperse far enough from their natal territories to avoid inbreeding (Maehr, et al. 2002). Females move, on average, only 20.3 km, and this is less than the width of one home range. Males go further ...
i1905e01
... of such movements are closely associated with the flow of energy (Purves et al., 2004). The flow of energy and its transfer efficiency characterize certain aspects of an ecosystem: the number of trophic levels, the relative importance of detritus, herbivore and predatory feeding, the steady-state va ...
... of such movements are closely associated with the flow of energy (Purves et al., 2004). The flow of energy and its transfer efficiency characterize certain aspects of an ecosystem: the number of trophic levels, the relative importance of detritus, herbivore and predatory feeding, the steady-state va ...
Human-carnivore coexistence in Qomolangma (Mt. Everest) Nature
... also collected census data on human population and livestock holding of all townships in 2013 from the county governments. We coded predation incidents by year, month, township, number and type of livestock killed, and predator species. Because the livestock census data that we used did not distingu ...
... also collected census data on human population and livestock holding of all townships in 2013 from the county governments. We coded predation incidents by year, month, township, number and type of livestock killed, and predator species. Because the livestock census data that we used did not distingu ...
IUCN Species Survival Commission
... an attempt to establish a species, for the purpose of conservation, outside its recorded distribution but within appropriate habitat and eco-geographical area.” Thus, assisted colonisation has been used successfully to counter imminent extinction threats to endangered species long before the current ...
... an attempt to establish a species, for the purpose of conservation, outside its recorded distribution but within appropriate habitat and eco-geographical area.” Thus, assisted colonisation has been used successfully to counter imminent extinction threats to endangered species long before the current ...
Restoration Biology: A Population Biology Perspective
... probability of extinction or evolutionary potential of populations. Given a measured amount of genetic drift or inbreeding, Ne is the number of individuals within an “ideal” population mating at random that would produce the observed amount of drift or inbreeding. Thus, “real world” deviations from ...
... probability of extinction or evolutionary potential of populations. Given a measured amount of genetic drift or inbreeding, Ne is the number of individuals within an “ideal” population mating at random that would produce the observed amount of drift or inbreeding. Thus, “real world” deviations from ...
Session 2 Frog Marking Guidelines R Johnson
... What does it all mean? • If behaviour or survival of the animal is likely to be seriously impaired, alternate methods to toe-clipping should be considered • Toe-clipping has been demonstrated to influence the return rate of marked animals • Operators of this technique need to have a high degree of ...
... What does it all mean? • If behaviour or survival of the animal is likely to be seriously impaired, alternate methods to toe-clipping should be considered • Toe-clipping has been demonstrated to influence the return rate of marked animals • Operators of this technique need to have a high degree of ...
Breeding and Non-breeding Survival of Lesser Prairie
... Most models of range supply and animal demand sum the available nutrients supplied by forage in the habitat and then divide by the animal’s nutritional requirements. However, these models are simple and fail to make predictions based on varying levels of nutritional quality required by individuals ( ...
... Most models of range supply and animal demand sum the available nutrients supplied by forage in the habitat and then divide by the animal’s nutritional requirements. However, these models are simple and fail to make predictions based on varying levels of nutritional quality required by individuals ( ...
Chapter 7
... households and drawing the numbers from a randomized table. Respondents were interviewed about number of livestock owned, livestock management, number of livestock lost to predation from 2006 to 2010 due to leopards, spotted hyenas and jackals. To quantify the economic cost of livestock depredation, ...
... households and drawing the numbers from a randomized table. Respondents were interviewed about number of livestock owned, livestock management, number of livestock lost to predation from 2006 to 2010 due to leopards, spotted hyenas and jackals. To quantify the economic cost of livestock depredation, ...
A Field Manual for Seed Collectors SEED COLLECTING FOR THE
... collectors are requested to enter comprehensive identification notes on the field data form. If a local expert is not available to identify species, plant identification guides should be used instead. Floras are often incomplete and, in many cases, are more appropriate to herbarium identification. M ...
... collectors are requested to enter comprehensive identification notes on the field data form. If a local expert is not available to identify species, plant identification guides should be used instead. Floras are often incomplete and, in many cases, are more appropriate to herbarium identification. M ...
Genetic variation and community change selection, evolution, and
... 1. There is relatively little information on how evolutionary processes that alter genetic variation in a focal species may affect interactions with other species, impact the structure or function of the community and ecosystem, and affect evolutionary feedbacks among interacting species through tim ...
... 1. There is relatively little information on how evolutionary processes that alter genetic variation in a focal species may affect interactions with other species, impact the structure or function of the community and ecosystem, and affect evolutionary feedbacks among interacting species through tim ...
Genetic variation and community change selection, evolution, and
... 1. There is relatively little information on how evolutionary processes that alter genetic variation in a focal species may affect interactions with other species, impact the structure or function of the community and ecosystem, and affect evolutionary feedbacks among interacting species through tim ...
... 1. There is relatively little information on how evolutionary processes that alter genetic variation in a focal species may affect interactions with other species, impact the structure or function of the community and ecosystem, and affect evolutionary feedbacks among interacting species through tim ...
Animals, the environment and people
... support elephant conservation. In an effort to reduce the short-term impacts of crop raiding, methods to keep elephants out of crop fields were developed and tested over several growing seasons. By at least partly alleviating the problem, farmers may become less antagonistic toward elephants – hopef ...
... support elephant conservation. In an effort to reduce the short-term impacts of crop raiding, methods to keep elephants out of crop fields were developed and tested over several growing seasons. By at least partly alleviating the problem, farmers may become less antagonistic toward elephants – hopef ...
Capture and Handling of Amphibians
... reduce injury to animals. Minimize the time spent examining and handling captured amphibians. ...
... reduce injury to animals. Minimize the time spent examining and handling captured amphibians. ...
Guidelines for the treatment of animals in behavioural research and teaching
... benefit analysis. Costs are considered to be costs to the animals (e.g. compromises of animal welfare, reduction of survivability or reproductive success) or the environment, or reductions in the quality of science. Benefits are considered to be the value of the specific scientific insights sought to hu ...
... benefit analysis. Costs are considered to be costs to the animals (e.g. compromises of animal welfare, reduction of survivability or reproductive success) or the environment, or reductions in the quality of science. Benefits are considered to be the value of the specific scientific insights sought to hu ...
1 Compassion As A Practical And Evolved Ethic For Conservation
... dictated by decision-‐making aimed at economic and utilitarian values (Artelle et al. 2014), to the detriment of aesthetic and other ethical values (Jepson and Canney 2003). The denial of ...
... dictated by decision-‐making aimed at economic and utilitarian values (Artelle et al. 2014), to the detriment of aesthetic and other ethical values (Jepson and Canney 2003). The denial of ...