“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 ...
Arid Recovery
... Some benefits of controlling rabbits include: • improving regeneration of native vegetation • reducing populations of introduced predators such as foxes and feral cats ...
... Some benefits of controlling rabbits include: • improving regeneration of native vegetation • reducing populations of introduced predators such as foxes and feral cats ...
MS Word Document - 881.5 KB - Department of Environment, Land
... formed from an undersea volcano that rose to the surface and has since subsided and risen over geological time. Terraces have formed around the island as a result of marine reef development and erosion processes. Christmas Island has a tropical climate with a distinct wet season between December and ...
... formed from an undersea volcano that rose to the surface and has since subsided and risen over geological time. Terraces have formed around the island as a result of marine reef development and erosion processes. Christmas Island has a tropical climate with a distinct wet season between December and ...
Galapagos Penguin - University of Arizona | Ecology and
... commercial fishing industry since they eat large amounts of fish which can be used by humans or which might otherwise serve as food for larger, commercially hunted fish. Penguins may eat as much as 3,000 tons of otherwise commercially viable fish each year. The impact of humans on the Galapagos peng ...
... commercial fishing industry since they eat large amounts of fish which can be used by humans or which might otherwise serve as food for larger, commercially hunted fish. Penguins may eat as much as 3,000 tons of otherwise commercially viable fish each year. The impact of humans on the Galapagos peng ...
evidence of top-down control
... al. 2000) and, on occasion, locally obliterate them (e.g. Kavanagh 1988). Closely related to these two opposing views is the long-lasting debate of the importance of density-dependence in the regulation of populations. The density-dependent approach suggests that population growth rates decrease wit ...
... al. 2000) and, on occasion, locally obliterate them (e.g. Kavanagh 1988). Closely related to these two opposing views is the long-lasting debate of the importance of density-dependence in the regulation of populations. The density-dependent approach suggests that population growth rates decrease wit ...
Fear in Wildlife Food Webs: Large Carnivore Predation Risk
... List of Figures Figure 2.1. Distribution of raccoons on the Gulf Islands, B.C., Canada. Islands shown in black indicate those on which the presence of raccoons was established, whereas no raccoons or raccoon latrines were observed on islands shown in white. Islands shown in grey were not surveyed. L ...
... List of Figures Figure 2.1. Distribution of raccoons on the Gulf Islands, B.C., Canada. Islands shown in black indicate those on which the presence of raccoons was established, whereas no raccoons or raccoon latrines were observed on islands shown in white. Islands shown in grey were not surveyed. L ...
feral cat colonies in florida: the fur and feathers are flying
... The Lower Keys marsh rabbit is a federal endangered species with a population estimated to be about 100 to 300 individuals.36 The species could go extinct within 2 or 3 decades if current mortality rates continue, and the greatest threat to the Lower Keys marsh rabbit now appears to be predation. 3 ...
... The Lower Keys marsh rabbit is a federal endangered species with a population estimated to be about 100 to 300 individuals.36 The species could go extinct within 2 or 3 decades if current mortality rates continue, and the greatest threat to the Lower Keys marsh rabbit now appears to be predation. 3 ...
The role of foxes and feral cats in faunal decline
... range over the 200 years of European settlement and are believed to be at ongoing risk of further declines. One factor implicated in the decline of ground-nesting birds in general, and Malleefowl in particular, is predation by the introduced fox (Saunders et al. 1995: 126; Benshemesh 2000). However, ...
... range over the 200 years of European settlement and are believed to be at ongoing risk of further declines. One factor implicated in the decline of ground-nesting birds in general, and Malleefowl in particular, is predation by the introduced fox (Saunders et al. 1995: 126; Benshemesh 2000). However, ...
A Feasibility Study for the Eradication of House Mice from
... The improved understanding of the technical systems used in aerial application of bait (e.g. DGPS, sowing buckets, overlapping and multiple baiting to ensure no gaps in bait distribution, pilot skills) and perhaps the absence of rats Rattus spp. increase the likelihood of success on Gough Island – i ...
... The improved understanding of the technical systems used in aerial application of bait (e.g. DGPS, sowing buckets, overlapping and multiple baiting to ensure no gaps in bait distribution, pilot skills) and perhaps the absence of rats Rattus spp. increase the likelihood of success on Gough Island – i ...
Rabies Prevention and Management of Cats in the Context of
... (TNVR) and other similarly named programmes as alternatives to euthanasia. These programmes involve humane trapping of feral cats, sterilization surgery and return to the environment, often but not always with vaccination against rabies and other diseases (Alley Cat Allies, 2012c). Such programmes g ...
... (TNVR) and other similarly named programmes as alternatives to euthanasia. These programmes involve humane trapping of feral cats, sterilization surgery and return to the environment, often but not always with vaccination against rabies and other diseases (Alley Cat Allies, 2012c). Such programmes g ...
GREAT LAKES ISLANDS: BIODIVERSITY ELEMENTS AND THREATS
... landscape unique in the world. Nowhere else does the combination of vast, interconnected, mid-continental bodies of freshwater and such a number and variety of islands occur. Found from 490 to 410 North and 920 to 760 West, the islands occur in different climatic zones and thus support a wide range ...
... landscape unique in the world. Nowhere else does the combination of vast, interconnected, mid-continental bodies of freshwater and such a number and variety of islands occur. Found from 490 to 410 North and 920 to 760 West, the islands occur in different climatic zones and thus support a wide range ...
The Islands of the Great Lakes
... landscape unique in the world. Nowhere else does the combination of vast, interconnected, mid-continental bodies of freshwater and such a number and variety of islands occur. Found from 490 to 410 North and 920 to 760 West, the islands occur in different climatic zones and thus support a wide range ...
... landscape unique in the world. Nowhere else does the combination of vast, interconnected, mid-continental bodies of freshwater and such a number and variety of islands occur. Found from 490 to 410 North and 920 to 760 West, the islands occur in different climatic zones and thus support a wide range ...
Feral goat - Department of Agriculture, Fisheries and Forestry
... Habitat and distribution Today, feral goats are present over much of Australia, with greatest numbers being concentrated in the semi-arid pastoral areas of Western Australia, western New South Wales, southern South Australia, and central and south-western Queensland. In a 2010 research paper, it was ...
... Habitat and distribution Today, feral goats are present over much of Australia, with greatest numbers being concentrated in the semi-arid pastoral areas of Western Australia, western New South Wales, southern South Australia, and central and south-western Queensland. In a 2010 research paper, it was ...
ago2003 - studylib.net
... a protective mechanism against predation or as a defence against conspecific adult aggressiveness. Our results show that chick desertion was not related to chick growth rate and was driven primarily by a parental decision, determined by adult physical constraints imposed by moulting needs and the sho ...
... a protective mechanism against predation or as a defence against conspecific adult aggressiveness. Our results show that chick desertion was not related to chick growth rate and was driven primarily by a parental decision, determined by adult physical constraints imposed by moulting needs and the sho ...
Feral and unwanted cats - Greater Wellington Regional Council
... in the North Island by the 1830s and in the South Island, by the 1860s. When rabbits became a major problem, the feral cat spread increased because cats were bought in from the cities and released to control rabbit infested farmland. ...
... in the North Island by the 1830s and in the South Island, by the 1860s. When rabbits became a major problem, the feral cat spread increased because cats were bought in from the cities and released to control rabbit infested farmland. ...
Variation in Population Synchrony in a Multi
... tern abundance and breeding success through direct predation of eggs and chicks as well as through competition for nest sites [31], [34], [35]. The effect of gull predation on breeding population abundance and productivity might be expected to vary among sympatrically breeding terns, as even closely ...
... tern abundance and breeding success through direct predation of eggs and chicks as well as through competition for nest sites [31], [34], [35]. The effect of gull predation on breeding population abundance and productivity might be expected to vary among sympatrically breeding terns, as even closely ...
Polar Biol (2003) 26: 538–544 - DIGITAL.CSIC, el repositorio
... a protective mechanism against predation or as a defence against conspecific adult aggressiveness. Our results show that chick desertion was not related to chick growth rate and was driven primarily by a parental decision, determined by adult physical constraints imposed by moulting needs and the sho ...
... a protective mechanism against predation or as a defence against conspecific adult aggressiveness. Our results show that chick desertion was not related to chick growth rate and was driven primarily by a parental decision, determined by adult physical constraints imposed by moulting needs and the sho ...
Durham E-Theses The Breeding Ecology of Homed Puffins
... The Horned Puffin (Fratercula corniculata) is one of three North Pacific puffin species. Horned Puffins almost always nest amongst boulders and in rock crevices. This makes access to nest-sites and chicks difficult and, as a result, sample sizes are small for many their breeding parameters. I studie ...
... The Horned Puffin (Fratercula corniculata) is one of three North Pacific puffin species. Horned Puffins almost always nest amongst boulders and in rock crevices. This makes access to nest-sites and chicks difficult and, as a result, sample sizes are small for many their breeding parameters. I studie ...
Download technical report 180
... long-term recovery of the existing seabird populations and were likely preventing other seabird species from colonizing the area. The impacts of seed predation on endangered plants, while not as extensively documented, were also likely contributing to poor reproductive success and survival. The deva ...
... long-term recovery of the existing seabird populations and were likely preventing other seabird species from colonizing the area. The impacts of seed predation on endangered plants, while not as extensively documented, were also likely contributing to poor reproductive success and survival. The deva ...
Evaluating the role of the dingo as a trophic
... Abstract The importance of strongly interactive predators has been demonstrated in many ecosystems, and the maintenance or restoration of species interactions is a major priority in the global conservation of biodiversity. By limiting populations of prey and/or competitors, apex predators can increa ...
... Abstract The importance of strongly interactive predators has been demonstrated in many ecosystems, and the maintenance or restoration of species interactions is a major priority in the global conservation of biodiversity. By limiting populations of prey and/or competitors, apex predators can increa ...
Feral cats: killing 75 million native animals every night
... laboriously cleared of feral cats - are not currently effective at a landscape scale. Cats are difficult to locate and extremely wary, which makes trapping and shooting resource-intensive and impracticable. In addition, the removal of cats from one area is offset by immigration from adjacent areas. ...
... laboriously cleared of feral cats - are not currently effective at a landscape scale. Cats are difficult to locate and extremely wary, which makes trapping and shooting resource-intensive and impracticable. In addition, the removal of cats from one area is offset by immigration from adjacent areas. ...
Feral Populations of Amphibians and Reptiles in the Ryukyu
... these islands, Ishigakijima may not have an established population yet, because the record derives from a single observation (Japan Wildlife Research Center, 2001), and no other recent surveys on this island have yielded any evidence of its occurrence (Mi. Toda, unpublished data). On the other islan ...
... these islands, Ishigakijima may not have an established population yet, because the record derives from a single observation (Japan Wildlife Research Center, 2001), and no other recent surveys on this island have yielded any evidence of its occurrence (Mi. Toda, unpublished data). On the other islan ...
Conservation and ecology of Hutton`s shearwater (Puffinus huttoni)
... Hutton's shearwater (Puffinus huttoni) breeds at only two remaining colonies located in the Seaward Kaikoura Mountains. An introduced predator, the stoat (Mustela erminea), has been identified as the main potential threat to the continued survival of Hutton's shearwaters and a major aim of this rese ...
... Hutton's shearwater (Puffinus huttoni) breeds at only two remaining colonies located in the Seaward Kaikoura Mountains. An introduced predator, the stoat (Mustela erminea), has been identified as the main potential threat to the continued survival of Hutton's shearwaters and a major aim of this rese ...
Action Plan for Seabird Conservation in New Zealand Part B: Non
... Populations on Raoul Island were eradicated by introduced Norway rats, and possibly Pacific rats and feral cats. Pacific rats may restrict the population on Macauley Island to breeding on cliff faces and coastal ledges where rats are scarce or absent (Taylor & Tennyson 1988). Feral goats impacted on ...
... Populations on Raoul Island were eradicated by introduced Norway rats, and possibly Pacific rats and feral cats. Pacific rats may restrict the population on Macauley Island to breeding on cliff faces and coastal ledges where rats are scarce or absent (Taylor & Tennyson 1988). Feral goats impacted on ...
Fact Sheets about Cats
... Domestic animals are bred by people to increase how useful they are for work, food, or as pets. It is thought that most domestic animals, like horses, cattle and dogs, were specifically selected for domestication, but cats became domesticated by coincidence as they lived in increasing proximity to p ...
... Domestic animals are bred by people to increase how useful they are for work, food, or as pets. It is thought that most domestic animals, like horses, cattle and dogs, were specifically selected for domestication, but cats became domesticated by coincidence as they lived in increasing proximity to p ...
Introduced mammals on seabird breeding islands
Seabirds include some of the most threatened taxa anywhere in the world. For example, of extant albatross species, 82% are listed as threatened, endangered, or critically endangered by the International Union for Conservation of Nature. The two leading threats to seabirds are accidental bycatch by commercial fishing operations and introduced mammals on their breeding islands. Mammals are typically brought to remote islands by humans either accidentally as stowaways on ships, or deliberately for hunting, ranching, or biological control of previously introduced species. Introduced mammals have a multitude of negative effects on seabirds including direct and indirect effects. Direct effects include predation and disruption of breeding activities, and indirect effects include habitat transformation due to overgrazing and major shifts in nutrient cycling due to a halting of nutrient subsidies from seabird excrement. There are other invasive species on islands that wreak havoc on native bird populations (e.g. brown snakes on Guam), but mammals are by far the most commonly introduced species to islands and the most detrimental to breeding seabirds. Despite efforts to remove introduced mammals from these remote islands, invasive mammals are still present on roughly 80% of islands worldwide.