Biodiversity on Oceanic Islands: Its Origin and
... The effects of certain "keystone" taxa in limiting the evolutionary options of others are especially striking, as demonstrated where such taxa are absent. Ants, for example, dominate arthropod communities through most of the world; their absence in Hawaii and SE Polynesia appears to be largely respo ...
... The effects of certain "keystone" taxa in limiting the evolutionary options of others are especially striking, as demonstrated where such taxa are absent. Ants, for example, dominate arthropod communities through most of the world; their absence in Hawaii and SE Polynesia appears to be largely respo ...
Eradication of alien invasive species: surprise effects and
... Island (New Caledonia). Our goal was to define a rational methodology to manage invasive populations in insular ecosystems where there may be surprise effects when an introduced species is eliminated. Specifically, our approach followed three successive steps. First, we undertook complete floristic ...
... Island (New Caledonia). Our goal was to define a rational methodology to manage invasive populations in insular ecosystems where there may be surprise effects when an introduced species is eliminated. Specifically, our approach followed three successive steps. First, we undertook complete floristic ...
Predation by Feral Cats - Tree House Humane Society
... Island Cats The much publicized studies of the effects of feral cats on island bird populations have added to the misinformation about their effects on continental wildlife and therefore made them very unpopular animals. Cats were transported to islands around the world to control rodents, and they ...
... Island Cats The much publicized studies of the effects of feral cats on island bird populations have added to the misinformation about their effects on continental wildlife and therefore made them very unpopular animals. Cats were transported to islands around the world to control rodents, and they ...
AMAMI beccaccia - La Beccaccia Scientifica
... Population justification: Population estimate derived from analysis of recent records and surveys by BirdLife International (2001); also estimated by Rose and Scott (1997) to number <10,000. Recent surveys suggest that the total population including immature birds may now exceed 10,000 individuals b ...
... Population justification: Population estimate derived from analysis of recent records and surveys by BirdLife International (2001); also estimated by Rose and Scott (1997) to number <10,000. Recent surveys suggest that the total population including immature birds may now exceed 10,000 individuals b ...
The Feral Cat (Felis catus)
... in eradicating feral cats from some offshore islands. Due to a very successful program conducted between the Commonwealth and Tasmania with funds from the Natural Heritage Trust, feral cats have been successfully removed from Macquarie Island. This has protected the long-term survival of colonies of ...
... in eradicating feral cats from some offshore islands. Due to a very successful program conducted between the Commonwealth and Tasmania with funds from the Natural Heritage Trust, feral cats have been successfully removed from Macquarie Island. This has protected the long-term survival of colonies of ...
a review of four successful recovery programmes for
... involved the control or eradication of predators at breeding grounds and the provision of safe artificial nest sites. Recovery actions were more difficult to implement for species on large islands. The success of each recovery programme was due largely to concerted action spanning several decades. K ...
... involved the control or eradication of predators at breeding grounds and the provision of safe artificial nest sites. Recovery actions were more difficult to implement for species on large islands. The success of each recovery programme was due largely to concerted action spanning several decades. K ...
Subsidized Island Biogeography Hypothesis: another new twist on
... with an increase in productivity, the slope (z) of the species±area curve for those islands will decrease relative to A (B range in Fig. 1a, b). If plants are on the descending side of the P±D curve where richness decreases with increasing productivity, z for those islands will increase relative to ...
... with an increase in productivity, the slope (z) of the species±area curve for those islands will decrease relative to A (B range in Fig. 1a, b). If plants are on the descending side of the P±D curve where richness decreases with increasing productivity, z for those islands will increase relative to ...
Invasions and stable isotope analysis – informing ecology and
... of ship rats on breeding seabirds on Surprise Island, New Caledonia. They also showed how, in the absence of seabirds, rats switched prey to green turtle (Chelonia mydas) hatchlings. Hobson et al. (1999) were similarly able to demonstrate the seasonal importance of breeding seabirds in the diet of b ...
... of ship rats on breeding seabirds on Surprise Island, New Caledonia. They also showed how, in the absence of seabirds, rats switched prey to green turtle (Chelonia mydas) hatchlings. Hobson et al. (1999) were similarly able to demonstrate the seasonal importance of breeding seabirds in the diet of b ...
The Impact of Feral Cats on Mona Island Wildlife and
... Test P > 0.1) nor the trapping locality-Sardinera or Pájaros (2-Tail Fisher’s Exact Test P > 0.1) (n = 10). The only non-target animals caught were hermit crabs. Hunters killed 12 cats. This technique was more successful than trapping, since on average 1.6 cats were taken for every 10 hours of effo ...
... Test P > 0.1) nor the trapping locality-Sardinera or Pájaros (2-Tail Fisher’s Exact Test P > 0.1) (n = 10). The only non-target animals caught were hermit crabs. Hunters killed 12 cats. This technique was more successful than trapping, since on average 1.6 cats were taken for every 10 hours of effo ...
THE IMPACT OF THE FERAL CAT (FELIS CATUS) ON THE NATIVE
... 3. Black rats were reportedly introduced before cats (sometime prior to 1 893 Atkinson, 1 98 5), and may have caused the extinction of sorne species vulnerable to predation before any scientific record was made of their presence (eg. there appears to be no obvious reason why the White and Brown boob ...
... 3. Black rats were reportedly introduced before cats (sometime prior to 1 893 Atkinson, 1 98 5), and may have caused the extinction of sorne species vulnerable to predation before any scientific record was made of their presence (eg. there appears to be no obvious reason why the White and Brown boob ...
Invasive mammals in Cuba: an overview
... rural zones with human activities and less abundant in forested and mountain forest areas. This is most likely related to the trophic relationship with their prey, such as rats and mice, which are also more common in areas occupied by humans and domestic animals. In sugarcane fields, mongoose popula ...
... rural zones with human activities and less abundant in forested and mountain forest areas. This is most likely related to the trophic relationship with their prey, such as rats and mice, which are also more common in areas occupied by humans and domestic animals. In sugarcane fields, mongoose popula ...
A Review of the Studies on the Lizard and Snakes of the Izu Island
... The simple insular vertebrate fauna facilitates the identification of food webs (Fig. 2). From the standpoint of lizards, terrestrial food webs of the Izu islands are classified into four types based on faunal differences in potential native predators: groups of islands with just avian; avian and op ...
... The simple insular vertebrate fauna facilitates the identification of food webs (Fig. 2). From the standpoint of lizards, terrestrial food webs of the Izu islands are classified into four types based on faunal differences in potential native predators: groups of islands with just avian; avian and op ...
Feral Cats - American Association of Wildlife Veterinarians
... non-native, detrimental predator of native wildlife including birds, mammals, reptiles, and amphibians. Animal welfare, animal rights, and human groups have become active proponents of managed cat colonies which are groups of feral cats that are trapped, disease tested, vaccinated, neutered, and rel ...
... non-native, detrimental predator of native wildlife including birds, mammals, reptiles, and amphibians. Animal welfare, animal rights, and human groups have become active proponents of managed cat colonies which are groups of feral cats that are trapped, disease tested, vaccinated, neutered, and rel ...
GreenEnvHisHaw
... (Macdonald et al, 1983, p.338). Each new volcanic island was then carried away from this geologic hotspot as the Pacific tectonic plate crept to the northwest at a rate of several inches a year. As one island’s source of lava was cut off, another island was born. An entire chain of islands was forme ...
... (Macdonald et al, 1983, p.338). Each new volcanic island was then carried away from this geologic hotspot as the Pacific tectonic plate crept to the northwest at a rate of several inches a year. As one island’s source of lava was cut off, another island was born. An entire chain of islands was forme ...
Ecological effects and distribution of invasive non - IPNA-CSIC
... It has spread to all the islands of the Canaries but is absent from the islets. It mainly inhabits towns and villages where it damages crops (see Pérez Padrón & Miralles Ciscar, 1974). It also occupies some rural areas where it has also probably influenced the ecological degradation of the Canarian ...
... It has spread to all the islands of the Canaries but is absent from the islets. It mainly inhabits towns and villages where it damages crops (see Pérez Padrón & Miralles Ciscar, 1974). It also occupies some rural areas where it has also probably influenced the ecological degradation of the Canarian ...
Effects of an Arctic Fox Visit to a Low Arctic Seabird Colony
... Information from the 1972 and 2000 aerial surveys indicates that the murre population at Funk Island has remained relatively stable (389 097 in 1972 bp to 412 524 bp in 2000; Chardine et al., 2003), with only minor shifts in nest site distribution. Nonetheless, it is possible that the Funk Island mu ...
... Information from the 1972 and 2000 aerial surveys indicates that the murre population at Funk Island has remained relatively stable (389 097 in 1972 bp to 412 524 bp in 2000; Chardine et al., 2003), with only minor shifts in nest site distribution. Nonetheless, it is possible that the Funk Island mu ...
A Public Health Perspective on Stray Cat Management
... Group feeding provides interface w/reservoirs • Florida feral cats & raccoons/opossums3 ...
... Group feeding provides interface w/reservoirs • Florida feral cats & raccoons/opossums3 ...
House mouse Mus musculus eradication by aerial bait application
... natural environments, and in most cases introduced populations having significant negative impacts on native biodiversity; New Zealand has been no exception. In New Zealand mice have been recorded killing native lizards (Whitaker 1978), suppressing regeneration in many plants (Badan 1979) and are kn ...
... natural environments, and in most cases introduced populations having significant negative impacts on native biodiversity; New Zealand has been no exception. In New Zealand mice have been recorded killing native lizards (Whitaker 1978), suppressing regeneration in many plants (Badan 1979) and are kn ...
View contents and download Changing Seabird Management in Hawai‘i
... Abstract.—Fossil evidence indicates that diverse and abundant seabird communities were once found in the main Hawaiian Islands. However, these seabird populations have severely decreased, or even disappeared, as a result of human disturbance, habitat loss and predation from introduced mammals. Today ...
... Abstract.—Fossil evidence indicates that diverse and abundant seabird communities were once found in the main Hawaiian Islands. However, these seabird populations have severely decreased, or even disappeared, as a result of human disturbance, habitat loss and predation from introduced mammals. Today ...
Ecological Impacts of Feral Cats
... Ecological Impacts of Feral Cats The domestic cat (Felis catus) is now found on all 7 continents, with 600 million cats worldwide and 148-188 million within the United States.1,2As a domestic animal, cats have no native range and are a non-native species in all environments worldwide; native prey sp ...
... Ecological Impacts of Feral Cats The domestic cat (Felis catus) is now found on all 7 continents, with 600 million cats worldwide and 148-188 million within the United States.1,2As a domestic animal, cats have no native range and are a non-native species in all environments worldwide; native prey sp ...
I Unit 9 PPT
... • 200 living species of primates, classified as prosimians. • Traditionally primates are divided into two groups- Prosimians which include lemurs, lorises, and tarsiers and; Anthropoids which include monkeys, apes, and humans. ...
... • 200 living species of primates, classified as prosimians. • Traditionally primates are divided into two groups- Prosimians which include lemurs, lorises, and tarsiers and; Anthropoids which include monkeys, apes, and humans. ...
Impacts of climate change on seabirds
... following additional pressures on UK Seabird populations: • Introduction of non-indigenous species: introductions of non-native mammals to islands have had major negative impacts on the resident colonies of ground-nesting seabirds (Craik, 1997, 1998; Mitchell and Ratcliffe, 2007; Ratcliffe et al. 20 ...
... following additional pressures on UK Seabird populations: • Introduction of non-indigenous species: introductions of non-native mammals to islands have had major negative impacts on the resident colonies of ground-nesting seabirds (Craik, 1997, 1998; Mitchell and Ratcliffe, 2007; Ratcliffe et al. 20 ...
Southern Royal Albatross EN1.2 - Agreement on the Conservation
... Although some population data are available for this species, survival rates of juveniles are not known and recent data on adult survival is lacking. Diet and the movement and distribution of non breeding birds also require further research. A greater understanding of the overlap with fishing operat ...
... Although some population data are available for this species, survival rates of juveniles are not known and recent data on adult survival is lacking. Diet and the movement and distribution of non breeding birds also require further research. A greater understanding of the overlap with fishing operat ...
position statement on feral cats
... cats is not productive. The number of cats is undeniably large. Even if conservative estimates of prey taken are considered, the number of prey animals killed is immense. The supplemental feeding of cats does not deter them from killing wildlife; often they do not eat what they kill. Likewise, popul ...
... cats is not productive. The number of cats is undeniably large. Even if conservative estimates of prey taken are considered, the number of prey animals killed is immense. The supplemental feeding of cats does not deter them from killing wildlife; often they do not eat what they kill. Likewise, popul ...
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.