Habitat use by three rat species (Rattus spp.) on an island without
... Traps were checked every morning and all rats removed. Rats in podocarp-broadleaf forest on Grid L were killed with an overdose of Halothane®. Rats caught in the shrubland on Grid L were anesthetised with Halothane®, identified to species, sexed, weighed, and ear-tagged for individual identification ...
... Traps were checked every morning and all rats removed. Rats in podocarp-broadleaf forest on Grid L were killed with an overdose of Halothane®. Rats caught in the shrubland on Grid L were anesthetised with Halothane®, identified to species, sexed, weighed, and ear-tagged for individual identification ...
Newell's shearwater population modeling for Habitat Conservation
... of 2,000 and 4,000 birds over 25 years, respectively, compared to no management undertaken. The benefits from these actions have clear potential to offset incidental take proposed in HCP planning. A recovered (i.e. stable, self‐sustaining) Newell’s shearwater population in 25 years ...
... of 2,000 and 4,000 birds over 25 years, respectively, compared to no management undertaken. The benefits from these actions have clear potential to offset incidental take proposed in HCP planning. A recovered (i.e. stable, self‐sustaining) Newell’s shearwater population in 25 years ...
Mammalian Predators of the Larch Sawfly in Eastern Manitoba```
... observed feeding upon larch sawfly cocoons in observation cages. It attacks the cocoons by placing a forefoot on the cocoon and biting off the end and consuming the larval inhabitant. The voracity of the species is illustrated by the following observations. The cinereous shrew has been observed to c ...
... observed feeding upon larch sawfly cocoons in observation cages. It attacks the cocoons by placing a forefoot on the cocoon and biting off the end and consuming the larval inhabitant. The voracity of the species is illustrated by the following observations. The cinereous shrew has been observed to c ...
Timing of fledging is influenced by glucocorticoid physiology in
... Laysan Albatrosses (Phoebastria immutabilis) are pelagic seabirds that have one of the most extreme life history strategies among birds. They lack terrestrial predators, live close to six decades, and raise only one chick in years when they breed (Whittow, 1993). The chicks have an extremely long de ...
... Laysan Albatrosses (Phoebastria immutabilis) are pelagic seabirds that have one of the most extreme life history strategies among birds. They lack terrestrial predators, live close to six decades, and raise only one chick in years when they breed (Whittow, 1993). The chicks have an extremely long de ...
ECOLOGY AND CONSERVATION OF MEDITERRANEAN SEABIRDS
... promoter Xaver Monbailliu step down as Secretary-General. The Medmaravis Council and Executive Board, where he will continue to play an active role, were also renewed with the addition of several new members. It is now up to us to take up the baton and continue the extraordinary work led by the prec ...
... promoter Xaver Monbailliu step down as Secretary-General. The Medmaravis Council and Executive Board, where he will continue to play an active role, were also renewed with the addition of several new members. It is now up to us to take up the baton and continue the extraordinary work led by the prec ...
Hawar Island Protected Area - Management Plan
... Following this, a resort and a hotel on the western coast of Hawar and some offshore smaller islands were developed. To date, construction has been characterized by randomness or haphazardness and also by the lack of comprehensive or integrated planning. In order to avoid the negative impacts of the ...
... Following this, a resort and a hotel on the western coast of Hawar and some offshore smaller islands were developed. To date, construction has been characterized by randomness or haphazardness and also by the lack of comprehensive or integrated planning. In order to avoid the negative impacts of the ...
Seagrass biodiversity at three marine ecoregions of Indonesia
... soil agro-ecosystem. Biodiversitas 17: 585-591. Seagrass is one of the coastal ecosystems in marine ecoregions of Indonesia that has very important ecological and economical functions. This study aimed to illustrate the diversity of seagrass ecosystems through its distribution, coverage, and density ...
... soil agro-ecosystem. Biodiversitas 17: 585-591. Seagrass is one of the coastal ecosystems in marine ecoregions of Indonesia that has very important ecological and economical functions. This study aimed to illustrate the diversity of seagrass ecosystems through its distribution, coverage, and density ...
Variation in the feeding of four species of seabird on Machias Seal
... Seabirds spend almost their entire lives in the marine environment and have lifehistory characteristics that make them unique in the avian world. Overall, they tend to be long-lived (up to 60 years), have small clutch sizes, and mature slowly (Schreiber & Burger 2002). Nearly all seabirds are coloni ...
... Seabirds spend almost their entire lives in the marine environment and have lifehistory characteristics that make them unique in the avian world. Overall, they tend to be long-lived (up to 60 years), have small clutch sizes, and mature slowly (Schreiber & Burger 2002). Nearly all seabirds are coloni ...
Australian Government
... instead be better estimates of the impact that feral cats are having on threatened and non-threatened native fauna. Doherty et al. (2015) state that reducing the impacts of feral cats is a priority for conservation managers across the globe, and success in achieving this aim requires a detailed unde ...
... instead be better estimates of the impact that feral cats are having on threatened and non-threatened native fauna. Doherty et al. (2015) state that reducing the impacts of feral cats is a priority for conservation managers across the globe, and success in achieving this aim requires a detailed unde ...
Impacts of Feral and Free-ranging Domestic Cats on Wildlife in Florida
... and 3.5 % birds by volume, with the balance being lizards and insects. Numerous diet studies confirm that cats can prey on a wide variety of animals, but that small mammals and birds make up the great majority of food items (see Jurek 1994, American Humane Association 1997). ...
... and 3.5 % birds by volume, with the balance being lizards and insects. Numerous diet studies confirm that cats can prey on a wide variety of animals, but that small mammals and birds make up the great majority of food items (see Jurek 1994, American Humane Association 1997). ...
Marsh rabbit mortalities tie pythons to the precipitous decline of
... and spread of invasive Burmese pythons [2], a large-bodied snake native to southeast Asia that preys on vertebrates. Pythons were probably introduced into ENP several decades ago via releases or escapes from private ownership [7]. Sightings and removals of pythons in ENP were sporadic in the 1980s a ...
... and spread of invasive Burmese pythons [2], a large-bodied snake native to southeast Asia that preys on vertebrates. Pythons were probably introduced into ENP several decades ago via releases or escapes from private ownership [7]. Sightings and removals of pythons in ENP were sporadic in the 1980s a ...
Feral Swine in North America
... populations that may not be permanently established yet. In these areas, eradication is, and should be, the goal. The most widely accepted methods for control and eradication include trapping, snaring, shooting, use of trained dogs, and aerial gunning. Research indicates feral swine populations mus ...
... populations that may not be permanently established yet. In these areas, eradication is, and should be, the goal. The most widely accepted methods for control and eradication include trapping, snaring, shooting, use of trained dogs, and aerial gunning. Research indicates feral swine populations mus ...
Evaluation of NFWF`s Pacific Seabird Program
... Figure!3.!Relative!feasibility!and!demographic!benefits!of!four!actions!targeting!the! Townsend’s!Shearwater!according!to!the!greater!seabird!community! Figure!4.!Investment,!matching!funds,!and!funding!gap!for!NFWF’s!nine!invasive!animal! eradication!investments! Figure!5.!Global!bycatch!intensity! ...
... Figure!3.!Relative!feasibility!and!demographic!benefits!of!four!actions!targeting!the! Townsend’s!Shearwater!according!to!the!greater!seabird!community! Figure!4.!Investment,!matching!funds,!and!funding!gap!for!NFWF’s!nine!invasive!animal! eradication!investments! Figure!5.!Global!bycatch!intensity! ...
From tameness to wariness: chemical recognition of snake
... was tested once a day within their normal activity period (08.00–17.00 h GMT). The experimental room was dark and only the terrarium was illuminated by a 75 W bulb 50 cm above it, providing homogeneous lighting. We maintained a homogeneous constant temperature of 30 ◦ C in the experimental room in o ...
... was tested once a day within their normal activity period (08.00–17.00 h GMT). The experimental room was dark and only the terrarium was illuminated by a 75 W bulb 50 cm above it, providing homogeneous lighting. We maintained a homogeneous constant temperature of 30 ◦ C in the experimental room in o ...
Linking invasive exotic vertebrates and their ecosystem impacts in
... Understanding processes and impacts of biological invasions is fundamental for ecology and management. Recent reviews summarized the mechanisms by which invasive species alter entire ecosystems, but quantitative assessments of these mechanisms are lacking for actual assemblages to determine their re ...
... Understanding processes and impacts of biological invasions is fundamental for ecology and management. Recent reviews summarized the mechanisms by which invasive species alter entire ecosystems, but quantitative assessments of these mechanisms are lacking for actual assemblages to determine their re ...
The amphibians and reptiles of the Cayman Islands: Conservation
... Crocodylus rhombifer is not listed in table 2. The Cayman Islands are believed to have once supported large populations of both C. acutus and C. rhombifer. Subfossil remains of C. rhombifer and associated coproliths occur in abundance throughout Grand Cayman in saturated peat deposits accumulated in ...
... Crocodylus rhombifer is not listed in table 2. The Cayman Islands are believed to have once supported large populations of both C. acutus and C. rhombifer. Subfossil remains of C. rhombifer and associated coproliths occur in abundance throughout Grand Cayman in saturated peat deposits accumulated in ...
GIANT TORTOISE - Galapagos Conservancy
... engineers in the Galapagos Islands, helping to shape the landscape for the islands’ other extraordinary creatures and plantlife. As many as 200,000 Giant Tortoises once roamed the islands, but only 20,000 (or just 10–20% of the original population) remain today. Their dramatic decline was mainly due ...
... engineers in the Galapagos Islands, helping to shape the landscape for the islands’ other extraordinary creatures and plantlife. As many as 200,000 Giant Tortoises once roamed the islands, but only 20,000 (or just 10–20% of the original population) remain today. Their dramatic decline was mainly due ...
Biology and Impacts of Pacific Invasive Species 7. The domestic cat
... continue to kill even when already actively feeding on other prey (George 1974, Adamec 1976). Some argue that cats “may now serve a beneficial role” in particular ecosystems because they have been present so long (Gorman and Levy 2004), but ecological studies reveal a continuing record of damage and ...
... continue to kill even when already actively feeding on other prey (George 1974, Adamec 1976). Some argue that cats “may now serve a beneficial role” in particular ecosystems because they have been present so long (Gorman and Levy 2004), but ecological studies reveal a continuing record of damage and ...
IMPACTS OF FREE-RANGING DOMESTIC CATS (FELIS CATUS
... in which they occur. Because of their ability to overwhelm existing native species and natural ecosystem processes in environments in which they have been introduced, domestic cats are moreover classified as invasive species. Invasive species, particularly predators, together with habitat destructio ...
... in which they occur. Because of their ability to overwhelm existing native species and natural ecosystem processes in environments in which they have been introduced, domestic cats are moreover classified as invasive species. Invasive species, particularly predators, together with habitat destructio ...
IMPACTS of FERAL and FREE- RANGING CATS on BIRD SPECIES
... Scrub-Jay, and Hawaiian Petrel nest and/or feed considered high priorities for cat control to protect on the ground. These species evolved in the absence of threatened bird species. cats and other alien predators and do not have effective defenses against them. Keeping in mind these factors Alien Pr ...
... Scrub-Jay, and Hawaiian Petrel nest and/or feed considered high priorities for cat control to protect on the ground. These species evolved in the absence of threatened bird species. cats and other alien predators and do not have effective defenses against them. Keeping in mind these factors Alien Pr ...
Predation in bird populations
... If we consider non-lethal effects as inevitable whenever one species hunts another that is capable of behaviours that might reduce its risk of attack or capture, then there should only ever be special circumstances when predators do not affect prey populations indirectly. Widespread non-lethal comp ...
... If we consider non-lethal effects as inevitable whenever one species hunts another that is capable of behaviours that might reduce its risk of attack or capture, then there should only ever be special circumstances when predators do not affect prey populations indirectly. Widespread non-lethal comp ...
The Predation of Wild Birds in the UK
... practically every other species on earth, predation is a real, daily threat. Animals have evolved a wide range of defences, such as camouflage, vigilance, speed and armoury, to avoid ending up as someone else’s dinner. Predators, in turn, have evolved as impressive an array of adaptations to try to ...
... practically every other species on earth, predation is a real, daily threat. Animals have evolved a wide range of defences, such as camouflage, vigilance, speed and armoury, to avoid ending up as someone else’s dinner. Predators, in turn, have evolved as impressive an array of adaptations to try to ...
Action plan for seabird conservation in New Zealand. Part A
... All threatened seabird taxa are discussed in Part A and non-threatened seabird taxa in Part B. In each document, taxa are arranged in alphabetical order of their scientific names. An index of scientific and common names is provided at the back of each document to help locate the text about each seab ...
... All threatened seabird taxa are discussed in Part A and non-threatened seabird taxa in Part B. In each document, taxa are arranged in alphabetical order of their scientific names. An index of scientific and common names is provided at the back of each document to help locate the text about each seab ...
Feral Swine: Impacts of Invasive Species
... and livestock. Feral swine can carry at least 30 important viral and bacterial diseases, such as leptospirosis, salmonellosis, and brucellosis and at least 37 parasites that affect people, pets, livestock, or wildlife.7 ...
... and livestock. Feral swine can carry at least 30 important viral and bacterial diseases, such as leptospirosis, salmonellosis, and brucellosis and at least 37 parasites that affect people, pets, livestock, or wildlife.7 ...
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.