Grizzly Bear
... projects, recreational and backcountry uses) which contribute to the fragmentation, loss or significant alteration of critical habitat features and food sources. Loss of connectivity, forage and denning features from urbanization and expanding settlement patterns in formerly “wilderness” areas conti ...
... projects, recreational and backcountry uses) which contribute to the fragmentation, loss or significant alteration of critical habitat features and food sources. Loss of connectivity, forage and denning features from urbanization and expanding settlement patterns in formerly “wilderness” areas conti ...
Site 55. WG Morris Reserve, Wantirna
... Acacia aculeatissima (Thin-leaf Wattle). Nine plants were found. Acacia genistifolia (Spreading Wattle). Eight appeared after a fire in c. 2000, of which two have since died. Austrostipa rudis subsp. australis (a subspecies of Veined Spear-grass). At least eight plants; probably a viable population. ...
... Acacia aculeatissima (Thin-leaf Wattle). Nine plants were found. Acacia genistifolia (Spreading Wattle). Eight appeared after a fire in c. 2000, of which two have since died. Austrostipa rudis subsp. australis (a subspecies of Veined Spear-grass). At least eight plants; probably a viable population. ...
Practical messages of the study
... fungi, bryophytes, lichens, invertebrates, amphibians, cavity nesting birds, bats, small mammals) need dead wood as living, breeding and nesting site. In the case of bryophytes, a lot of species occur on dead wood obligatorily (true epixylics) or facultatively (epiphytes, epigeic and epilithic speci ...
... fungi, bryophytes, lichens, invertebrates, amphibians, cavity nesting birds, bats, small mammals) need dead wood as living, breeding and nesting site. In the case of bryophytes, a lot of species occur on dead wood obligatorily (true epixylics) or facultatively (epiphytes, epigeic and epilithic speci ...
Community Dynamics of Insular Biotas in Space and Time
... the entire assemblage (Simberloff and Martin 1991, Worthen 1996, Whittaker 1998, Wright et al 1998). For example, distributions of idiosyncratic species suggest that they are affected by biogeographic factors different from those affecting the assemblage as a whole (Atmar & Patterson 1993). However, ...
... the entire assemblage (Simberloff and Martin 1991, Worthen 1996, Whittaker 1998, Wright et al 1998). For example, distributions of idiosyncratic species suggest that they are affected by biogeographic factors different from those affecting the assemblage as a whole (Atmar & Patterson 1993). However, ...
Introduction of Leptodactylus labyrinthicus (Spix, 1824)(Anura
... range of the species has been expanded by anthropogenic dispersal corridors. Thus, we believe that the population living in Manaus was introduced, and we present a brief description for it origin. Large frogs are used for human consumption in Brazil, and some species have been bred in captivity. In ...
... range of the species has been expanded by anthropogenic dispersal corridors. Thus, we believe that the population living in Manaus was introduced, and we present a brief description for it origin. Large frogs are used for human consumption in Brazil, and some species have been bred in captivity. In ...
Climate change impacts on marine ecosystems
... or continuously, outside the range to which the biological system ...
... or continuously, outside the range to which the biological system ...
2015-01-03_UTRB-call_ver17
... Listed, Proposed, Candidate Fish Species - [Number species per 12-digit HUC] ...
... Listed, Proposed, Candidate Fish Species - [Number species per 12-digit HUC] ...
October - Australasian Wildlife Management Society
... New Zealand conservation services spend millions of dollars annually on protecting native flora and fauna. With more than 40% of pre-human bird species now extinct, the proportion of birds classed as threatened in New Zealand is one of the world’s highest. Campaigns to eradicate pests such as stoats ...
... New Zealand conservation services spend millions of dollars annually on protecting native flora and fauna. With more than 40% of pre-human bird species now extinct, the proportion of birds classed as threatened in New Zealand is one of the world’s highest. Campaigns to eradicate pests such as stoats ...
9 tcp/rer/3402/ra/arthu - Assistance to Western Balkan Countries for
... Overlaps with and complements actions to prevent the ...
... Overlaps with and complements actions to prevent the ...
global amphibian declines: a review of some current hypotheses
... Most amphibian population declines can be traced to anthropogenic causes. Habitat alteration and destruction are the primary causes of declines in developed countries. Disease and UV-B radiation have been proposed as explanations for widespread amphibian declines in the tropics, but these hypo ...
... Most amphibian population declines can be traced to anthropogenic causes. Habitat alteration and destruction are the primary causes of declines in developed countries. Disease and UV-B radiation have been proposed as explanations for widespread amphibian declines in the tropics, but these hypo ...
Misleading criticisms of invasion science
... and ‘deliberate persecution’ (Thomas, 2013). In reality, managers are constrained by limited resources and seek to prioritize species that are likely to become problematic. However, this effort is hampered by several facts that are generally ignored by the naysayers: (1) the impacts of most invasion ...
... and ‘deliberate persecution’ (Thomas, 2013). In reality, managers are constrained by limited resources and seek to prioritize species that are likely to become problematic. However, this effort is hampered by several facts that are generally ignored by the naysayers: (1) the impacts of most invasion ...
... studies. For example, Turnbull et al. tested the predictions of the competition-colonization hypothesis using a guild of annual plants (13). In an experiment where seeds of eight species were added to quadrats in equal numbers, the large-seeded species were found to dominate the community when sowin ...
The Origin of Diversity
... allows coexistence of species can also explain why there is an advantage in having multiple versions of a gene in a population if it confers immunity towards a certain disease. Through the specificity of diseases, specific species as well as genotypes can be down regulated allowing for the survival ...
... allows coexistence of species can also explain why there is an advantage in having multiple versions of a gene in a population if it confers immunity towards a certain disease. Through the specificity of diseases, specific species as well as genotypes can be down regulated allowing for the survival ...
the$impact$of$invasive$alien$species$ on$native
... grazing/herbivory/browsing! in! 37%! of! cases.! A! key! difference! is! that! for! animals! species! competition! is! only! the! second! cause! of! impact,! accounting! for! 29%! of! cases.! For! this! group! the! main!cause!of!impact!is!in!fact!predation.!This!is! not! surprising,! as! predation! ...
... grazing/herbivory/browsing! in! 37%! of! cases.! A! key! difference! is! that! for! animals! species! competition! is! only! the! second! cause! of! impact,! accounting! for! 29%! of! cases.! For! this! group! the! main!cause!of!impact!is!in!fact!predation.!This!is! not! surprising,! as! predation! ...
click here to download a pdf of this report
... introductions and create an early warning network of informed citizens. Community support and involvement with conservation issues is crucial to their ultimate success, as evidenced by the ongoing Miconia calvescens eradication efforts throughout the islands. There was one new record for Wasmannia a ...
... introductions and create an early warning network of informed citizens. Community support and involvement with conservation issues is crucial to their ultimate success, as evidenced by the ongoing Miconia calvescens eradication efforts throughout the islands. There was one new record for Wasmannia a ...
Evaluating the “recovery level” of endangered species without prior
... likelihood ratio tests. In this analysis, we excluded sites where no individuals of each endemic species were observed during 9 years. As these sites were located near the original mongoose release point, we assumed that endemic species had been locally extirpated by long-term high predation pressur ...
... likelihood ratio tests. In this analysis, we excluded sites where no individuals of each endemic species were observed during 9 years. As these sites were located near the original mongoose release point, we assumed that endemic species had been locally extirpated by long-term high predation pressur ...
1495/Chapter 12
... he says, “we imply that they don’t interbreed — or interbreed so rarely that their differences in mating behaviour, genetics, and so on are maintained by natural selection against hybrids.” But their definition of a species is a “soft” one, with which some scientists would disagree. Laboratory studi ...
... he says, “we imply that they don’t interbreed — or interbreed so rarely that their differences in mating behaviour, genetics, and so on are maintained by natural selection against hybrids.” But their definition of a species is a “soft” one, with which some scientists would disagree. Laboratory studi ...
On the stabilizing effect of predators and competitors on ecological
... upon a bistable community, thus complementing Kirlingers (1986) work on two-prey, two-predator systems. We shall also investigate the effect of a predator (or a competitor) upon an ecological community consisting of three cyclically competing species which was originally studied by May and Leonard ( ...
... upon a bistable community, thus complementing Kirlingers (1986) work on two-prey, two-predator systems. We shall also investigate the effect of a predator (or a competitor) upon an ecological community consisting of three cyclically competing species which was originally studied by May and Leonard ( ...
Restoration-Focused Germination and Development
... Natural land recovery might occur eventually if secondary succession is allowed to prosper without any other disturbance (Lamb & Gilmour, 2003; Greipsson, 2011). However, this process is slow, often obstructed, and its outcomes are uncertain (Brown & Lugo, 1994; del Moral et al., 2007). When forest ...
... Natural land recovery might occur eventually if secondary succession is allowed to prosper without any other disturbance (Lamb & Gilmour, 2003; Greipsson, 2011). However, this process is slow, often obstructed, and its outcomes are uncertain (Brown & Lugo, 1994; del Moral et al., 2007). When forest ...
Killer Shrimp - Dikerogammarus villosus
... Video 1 Predation of aquatic sowbug by D. villosus.3 ...
... Video 1 Predation of aquatic sowbug by D. villosus.3 ...
European Strategy on Invasive Alien Species
... develop technical references well ahead of many other regions. Its size, number of countries and borders and free trade arrangements make it essential to promote consistency and avoid unilateral national efforts being undermined by their neighbours’ inaction. Moreover, IAS can themselves act as barr ...
... develop technical references well ahead of many other regions. Its size, number of countries and borders and free trade arrangements make it essential to promote consistency and avoid unilateral national efforts being undermined by their neighbours’ inaction. Moreover, IAS can themselves act as barr ...
Document
... What animal species are likely inhabitants of such a system? Given the characteristics of the site, its location and the project goals, what would serve as an appropriate “reference ecosystem”? What are the major characteristic plant species assemblages of such a reference ecosystem? The resto ...
... What animal species are likely inhabitants of such a system? Given the characteristics of the site, its location and the project goals, what would serve as an appropriate “reference ecosystem”? What are the major characteristic plant species assemblages of such a reference ecosystem? The resto ...
08
... naturalized alien plants. Most introduced plant species have evolved with slugs, and may therefore be better-defended and less palatable, in general, than their now sympatric native competitors. Although other factors, such as life history traits, will influence competitive outcomes between native a ...
... naturalized alien plants. Most introduced plant species have evolved with slugs, and may therefore be better-defended and less palatable, in general, than their now sympatric native competitors. Although other factors, such as life history traits, will influence competitive outcomes between native a ...
Invasive Species - South Bay Salt Pond Restoration Project
... Invasive species have had a major impact on the ecology of the San Francisco Bay. Tidal mudflats and shallow water habitats are almost entirely composed of introduced species, and native species are rarely found in abundance (Nichols and Thompson, 1985; Thompson and Shouse, 2002; Shouse and Thompson ...
... Invasive species have had a major impact on the ecology of the San Francisco Bay. Tidal mudflats and shallow water habitats are almost entirely composed of introduced species, and native species are rarely found in abundance (Nichols and Thompson, 1985; Thompson and Shouse, 2002; Shouse and Thompson ...
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.