Now you see them, now you don`t! – population crashes of
... introduced species may simply be temporary lows during a more or less regular boom-and-bust cycle. However, on a restricted site (such as a small island), a boom-or-bust cycle may be impossible and recovery may never ensue; local extinction may even occur. In several instances, apparently spontaneou ...
... introduced species may simply be temporary lows during a more or less regular boom-and-bust cycle. However, on a restricted site (such as a small island), a boom-or-bust cycle may be impossible and recovery may never ensue; local extinction may even occur. In several instances, apparently spontaneou ...
Allocation in High-Sea Fisheries
... WHY SO LITTLE PROGRESS? Little incentive for very large expenditure with krill fishery minimal given economic constraints ...
... WHY SO LITTLE PROGRESS? Little incentive for very large expenditure with krill fishery minimal given economic constraints ...
Endangered Species
... is the job of the U.S. Fish and Wildlife Service to manage over 500 refuges with over 90 million acres for the conversation of endangered species, ecosystems, and natural diversity. ...
... is the job of the U.S. Fish and Wildlife Service to manage over 500 refuges with over 90 million acres for the conversation of endangered species, ecosystems, and natural diversity. ...
Designing marine reserves for interacting species: Insights
... increasing movement and decreasing growth and movement bias (Gopalsamy, 1977). In addition to reserve size, models such as those described above can provide insight into the debate on whether to establish a single large or several small reserves (SLOSS). For example, in a competition-colonization mo ...
... increasing movement and decreasing growth and movement bias (Gopalsamy, 1977). In addition to reserve size, models such as those described above can provide insight into the debate on whether to establish a single large or several small reserves (SLOSS). For example, in a competition-colonization mo ...
Significant Wildlife Habitat Criteria Schedules For Ecoregion 3E
... concentrate these species of bats at stopover areas. The location and characteristics of stopover habitats are generally unknown. Information Sources • OMNRF for possible locations and contact for local experts • University Biology Departments with bat experts. ...
... concentrate these species of bats at stopover areas. The location and characteristics of stopover habitats are generally unknown. Information Sources • OMNRF for possible locations and contact for local experts • University Biology Departments with bat experts. ...
invasional meltdown - UCF College of Sciences
... A literature review of the interactions between nonnative species of the Great Lakes revealed 3 cases of mutualisms as well as 14 cases of commensalisms, more than the number of documented negative interactions between invasive species in the Great Lakes. These population-level impacts were, for the ...
... A literature review of the interactions between nonnative species of the Great Lakes revealed 3 cases of mutualisms as well as 14 cases of commensalisms, more than the number of documented negative interactions between invasive species in the Great Lakes. These population-level impacts were, for the ...
Biodiversity and ecosystem health
... Biological diversity, or biodiversity, is the term given to the variety of life on earth and the natural patterns it forms. This diversity is often understood in terms of the wide variety of plants, animals and micro-organisms but also includes genetic differences within each species. Another aspect ...
... Biological diversity, or biodiversity, is the term given to the variety of life on earth and the natural patterns it forms. This diversity is often understood in terms of the wide variety of plants, animals and micro-organisms but also includes genetic differences within each species. Another aspect ...
Forest Birds in Urban Areas:
... addition, there is evidence that supplemental food sources, particularly bird feeders, subsidize local native predator populations. Native predators have a greater relative impact than non-native predators. The domestic cat is the primary non-native predator. While cats are more abundant in urban en ...
... addition, there is evidence that supplemental food sources, particularly bird feeders, subsidize local native predator populations. Native predators have a greater relative impact than non-native predators. The domestic cat is the primary non-native predator. While cats are more abundant in urban en ...
File
... • When two species coexist, they have lower equilibrium population densities than either would alone. • In some cases, competition causes one species to go extinct. ...
... • When two species coexist, they have lower equilibrium population densities than either would alone. • In some cases, competition causes one species to go extinct. ...
Marcel Rejmánek at 60 – the man and his work
... apart most is his exceptional ability to combine insights from different fields. His knowledge of the literature is unsurpassable. Even now, in the era of electronic databases, when one is about to finish a paper and does not want to miss a crucial citation, the safest way is to ask Marcel. Contacti ...
... apart most is his exceptional ability to combine insights from different fields. His knowledge of the literature is unsurpassable. Even now, in the era of electronic databases, when one is about to finish a paper and does not want to miss a crucial citation, the safest way is to ask Marcel. Contacti ...
Biodiversity Problems in Freshwater Ecosystems in China: Impact of
... and the distributions of freshwater fish species are more limited. Freshwater ecosystems are also less stable, and much more susceptible to environmental disturbance. For example, more than one decade ago in Lake Luguhu (located in the intersectional area between Sichuan and Yunnan provinces), local ...
... and the distributions of freshwater fish species are more limited. Freshwater ecosystems are also less stable, and much more susceptible to environmental disturbance. For example, more than one decade ago in Lake Luguhu (located in the intersectional area between Sichuan and Yunnan provinces), local ...
Overview of El Carmen Project, Maderas del Carmen, Coahuila
... assess the lands ecological condition and biodiversity; (4) develop and implement conservations plans for the restoration and protection of the ecological integrity and unique biodiversity; and (5) define and develop plans for protection of vital ecological corridors spanning the international borde ...
... assess the lands ecological condition and biodiversity; (4) develop and implement conservations plans for the restoration and protection of the ecological integrity and unique biodiversity; and (5) define and develop plans for protection of vital ecological corridors spanning the international borde ...
NatureServe Explorer - Global Invasive Species Information Network
... and conservation data centers located throughout the United States, Canada, and Latin America. The program members collect and manage data about plants, animals, and ecological communities. NatureServe employs ecologists, botanists, zoologists, and data specialists to fulfill its mission of connecti ...
... and conservation data centers located throughout the United States, Canada, and Latin America. The program members collect and manage data about plants, animals, and ecological communities. NatureServe employs ecologists, botanists, zoologists, and data specialists to fulfill its mission of connecti ...
Interactions between alien species and restoration of large
... Although common reed is native to North America, highly invasive alien genotypes have spread over much of the continent (Saltonstall 2002). These alien genotypes often form dense, monospecific stands. On the Hudson, invasive genotypes of common reed probably appeared in the late 19th or early 20th c ...
... Although common reed is native to North America, highly invasive alien genotypes have spread over much of the continent (Saltonstall 2002). These alien genotypes often form dense, monospecific stands. On the Hudson, invasive genotypes of common reed probably appeared in the late 19th or early 20th c ...
Habitat-dependent foraging in a classic predatorа/prey system: a
... two different habitats vary in predation rate, foragers will spend more time in patches located in the safer habitat, and thereby achieve a lower quitting-harvest rate, (there will be fewer resources left in patches in the safe habitat than in the riskier one, it will have a lower giving-up density) ...
... two different habitats vary in predation rate, foragers will spend more time in patches located in the safer habitat, and thereby achieve a lower quitting-harvest rate, (there will be fewer resources left in patches in the safe habitat than in the riskier one, it will have a lower giving-up density) ...
by Sydne Record
... used to be more common in Massachusetts, with several populations scattered across the state. Yet today, there is only one extant population. Although there is no evidence to determine precisely how these populations became extinct, given their documented localities, many of them were likely lost as ...
... used to be more common in Massachusetts, with several populations scattered across the state. Yet today, there is only one extant population. Although there is no evidence to determine precisely how these populations became extinct, given their documented localities, many of them were likely lost as ...
Module 1.1: Chelonians - The Maryland Zoo in Baltimore
... permits. Listed under Appendix II because the animal is still conservation dependent, and overharvest could quickly become a major pressure on the animal’s population if not controlled. Federally listed as a “species of concern,” meaning they may be in need of concentrated conservation actions in th ...
... permits. Listed under Appendix II because the animal is still conservation dependent, and overharvest could quickly become a major pressure on the animal’s population if not controlled. Federally listed as a “species of concern,” meaning they may be in need of concentrated conservation actions in th ...
COLORADO PLATEAU HANGING GARDEN
... occurring across many communities; landscape includes partially disturbed natural or seminatural communities, some of it not high quality due to overgrazing or recent logging. ...
... occurring across many communities; landscape includes partially disturbed natural or seminatural communities, some of it not high quality due to overgrazing or recent logging. ...
How to make wildlife conservation more compatible with production forestry:... Kalimantan
... fate of many species depends upon what happens to other forestlands. Forest areas used for environmentally sound and sustainably productive uses represent an opportunity for biodiversity conservation. Although not a substitute for nature reserves, many species could be conserved within a forest esta ...
... fate of many species depends upon what happens to other forestlands. Forest areas used for environmentally sound and sustainably productive uses represent an opportunity for biodiversity conservation. Although not a substitute for nature reserves, many species could be conserved within a forest esta ...
chapter 50
... factors that affect population size and composition. • A community consists of all the organisms of all the species that inhabit a particular area. Community ecology examines the interactions between species and considers how factors such as predation, competition, disease, and disturbance affect co ...
... factors that affect population size and composition. • A community consists of all the organisms of all the species that inhabit a particular area. Community ecology examines the interactions between species and considers how factors such as predation, competition, disease, and disturbance affect co ...
Lethal effects of habitat degradation on fishes through changing
... the ability of the changed habitat to meet the inhabitant’s resource requirements [13,14]. As the services provided by a habitat change, so will the interactions between species that live within the habitat. Understanding how community processes change as the quality of the environment changes is ce ...
... the ability of the changed habitat to meet the inhabitant’s resource requirements [13,14]. As the services provided by a habitat change, so will the interactions between species that live within the habitat. Understanding how community processes change as the quality of the environment changes is ce ...
Yellow Sea coast
... disturbance. The DMZ is afforded protection by the current security situation in Korea, but could be opened up for development (with resulting increased disturbance) should the situation change in the future. Various options for the conservation of key areas for biodiversity need to be considered in ...
... disturbance. The DMZ is afforded protection by the current security situation in Korea, but could be opened up for development (with resulting increased disturbance) should the situation change in the future. Various options for the conservation of key areas for biodiversity need to be considered in ...
Jaguarundi CH Petition Backup
... occurring in the U.S. portion of the Jaguarundi’s range. Human population growth within this wildcat’s range is a driver of continued loss of habitat to agriculture and development. Border installations and related activity further degrade and fragment its habitat, as well as dividing small U.S. pop ...
... occurring in the U.S. portion of the Jaguarundi’s range. Human population growth within this wildcat’s range is a driver of continued loss of habitat to agriculture and development. Border installations and related activity further degrade and fragment its habitat, as well as dividing small U.S. pop ...
Biodiversity is Autocatalytic
... implies that there are no real differences between the niches of each species and that their success is dictated by the randomness of the moment [5]. In contrast, the idea that niches are critical for the maintenance of species diversity, challenging the neutral theory of biodiversity, has received ...
... implies that there are no real differences between the niches of each species and that their success is dictated by the randomness of the moment [5]. In contrast, the idea that niches are critical for the maintenance of species diversity, challenging the neutral theory of biodiversity, has received ...
Habitat conservation
Habitat conservation is a land management practice that seeks to conserve, protect and restore habitat areas for wild plants and animals, especially conservation reliant species, and prevent their extinction, fragmentation or reduction in range. It is a priority of many groups that cannot be easily characterized in terms of any one ideology.