Access to land, livestock production and ecosystem
... developing countries, where natural grasslands are viewed as extensive systems, and intensification is the main focus on research, development and policies implicated. A sound judgment and coordination are the postulation to policies in balancing the production versus conservation dilemma. Unexpecte ...
... developing countries, where natural grasslands are viewed as extensive systems, and intensification is the main focus on research, development and policies implicated. A sound judgment and coordination are the postulation to policies in balancing the production versus conservation dilemma. Unexpecte ...
Fifth National Report to the Convention on Biological Diversity Sweden
... in Sweden, evaluating the species’ risk of extinction. The analyses follow the International Union for Conservation of Nature (IUCN) quantitative Red List Criteria from 2001 and IUCN’s regional guidelines from 2003. There are no major changes in status and trends of biodiversity in Sweden since the ...
... in Sweden, evaluating the species’ risk of extinction. The analyses follow the International Union for Conservation of Nature (IUCN) quantitative Red List Criteria from 2001 and IUCN’s regional guidelines from 2003. There are no major changes in status and trends of biodiversity in Sweden since the ...
Biodiversity and Ecosystem Functioning - annurev-ecolsys
... Biodiversity is now known to be a major determinant, perhaps the major determinant, of community and ecosystem dynamics and functioning. This discovery, which required two decades of research by hundreds of ecologists from around the world, represents a major reversal from the paradigm of the 1970s ...
... Biodiversity is now known to be a major determinant, perhaps the major determinant, of community and ecosystem dynamics and functioning. This discovery, which required two decades of research by hundreds of ecologists from around the world, represents a major reversal from the paradigm of the 1970s ...
effects of grazer richness and composition on algal biomass in a
... pool. In the two ‘‘closed system’’ tanks, each aquarium was covered with mesh (white fabric 0.039 g/cm2 with 1mm holes that allow light penetration of .90%, which is sufficient light for algal growth) to prevent migration of grazers. In the other two ‘‘open system’’ tanks, aquaria were also covered w ...
... pool. In the two ‘‘closed system’’ tanks, each aquarium was covered with mesh (white fabric 0.039 g/cm2 with 1mm holes that allow light penetration of .90%, which is sufficient light for algal growth) to prevent migration of grazers. In the other two ‘‘open system’’ tanks, aquaria were also covered w ...
3. and savannah ecosystems
... species (about 10 per cent of all vascular plants) of which around 60 per cent are endemic to the Mediterranean region. The other four Mediterranean-type ecosystem regions are widely recognised as biological diversity hotspots holding a disproportionate amount of global biological diversity in relat ...
... species (about 10 per cent of all vascular plants) of which around 60 per cent are endemic to the Mediterranean region. The other four Mediterranean-type ecosystem regions are widely recognised as biological diversity hotspots holding a disproportionate amount of global biological diversity in relat ...
INTERNATIONAL RELATIONS, BIODIVERSITY LOSS, AND THE
... Examples include the depletion of animal populations such as tigers or swordfish, as well as medicinal plants such as American ginseng, which today fetch a high price due to their current rarity (National Wildlife 2016, “Overexploitation”). High profile examples include the killing of large game for ...
... Examples include the depletion of animal populations such as tigers or swordfish, as well as medicinal plants such as American ginseng, which today fetch a high price due to their current rarity (National Wildlife 2016, “Overexploitation”). High profile examples include the killing of large game for ...
The Role of Hybrid Vigor in the Replacement of
... Unfortunately, the mechanisms that promote or retard gene flow between divergent populations are little studied and poorly understood. Like many imperiled fish species, the Pecos pupfish (Cyprinodon pecosensis) is threatened with replacement by its hybrids with a close congener. We examined swimming ...
... Unfortunately, the mechanisms that promote or retard gene flow between divergent populations are little studied and poorly understood. Like many imperiled fish species, the Pecos pupfish (Cyprinodon pecosensis) is threatened with replacement by its hybrids with a close congener. We examined swimming ...
Why Are HEALTHY ECOSYSTEMS Important?
... and the Galapagos dove population has increased in size. As the island recovers from its century-long rat infestation, we expect to see the recovery of many other native plant and animal populations. ...
... and the Galapagos dove population has increased in size. As the island recovers from its century-long rat infestation, we expect to see the recovery of many other native plant and animal populations. ...
Genetic consequences of ecological reserve design guidelines: An
... all common alleles. As such, this research contributes both to understanding the genetic diversity consequences of applying ecological guidelines and to understanding how many populations are required to represent within-species genetic diversity when diversity patterns are unknown. This approach is ...
... all common alleles. As such, this research contributes both to understanding the genetic diversity consequences of applying ecological guidelines and to understanding how many populations are required to represent within-species genetic diversity when diversity patterns are unknown. This approach is ...
INTRODUCTION Definition and meaning, guiding principles
... fashion similar to a “fine Swiss watch”. Leopold saw ecosystems existing within equilibriums, a view subsequently replaced by non-equilibrium views. Even today the science of conservation is still developing since it has been marred by past academic prejudice, which has left its development as a dis ...
... fashion similar to a “fine Swiss watch”. Leopold saw ecosystems existing within equilibriums, a view subsequently replaced by non-equilibrium views. Even today the science of conservation is still developing since it has been marred by past academic prejudice, which has left its development as a dis ...
Marine biodiversity and ecosystem functioning: what`s known and
... from marine systems. Here, we present the results of a meta-analysis of 110 marine experiments from 42 studies that manipulated the species richness of organisms across a range of taxa and trophic levels and analysed the consequences for various ecosystem processes (categorised as production, consum ...
... from marine systems. Here, we present the results of a meta-analysis of 110 marine experiments from 42 studies that manipulated the species richness of organisms across a range of taxa and trophic levels and analysed the consequences for various ecosystem processes (categorised as production, consum ...
Nichols, M.C. 2003. Conservation strategy for robust redhorse
... specimens collected in the Yadkin River, North Carolina. The species was essentially lost to science until 1991 when five specimens were collected by Georgia Department of Natural Resources, Wildlife Resource Division (WRD) biologists downstream of Sinclair Dam on the Oconee River near Tombsboro, Ge ...
... specimens collected in the Yadkin River, North Carolina. The species was essentially lost to science until 1991 when five specimens were collected by Georgia Department of Natural Resources, Wildlife Resource Division (WRD) biologists downstream of Sinclair Dam on the Oconee River near Tombsboro, Ge ...
Southern Yorke Peninsula CAP Summary
... issues. A complementary process for soil and water assets has been developed since 2014. The Naturally Yorke Conservation Program is a collaboration between Natural Resources Northern and Yorke, environmental and agricultural NGOs, community groups and individuals with a vision to protect and restor ...
... issues. A complementary process for soil and water assets has been developed since 2014. The Naturally Yorke Conservation Program is a collaboration between Natural Resources Northern and Yorke, environmental and agricultural NGOs, community groups and individuals with a vision to protect and restor ...
The conservation status of the Wedge- tailed Eagle in Australian law
... international conservation organisations also report the population trend as increasing.5 At a time when the general trend for large eagle species worldwide is to decline in numbers, and their conservation status gives cause for concern, the Wedge-tailed Eagle has fared better than most.6 The prima ...
... international conservation organisations also report the population trend as increasing.5 At a time when the general trend for large eagle species worldwide is to decline in numbers, and their conservation status gives cause for concern, the Wedge-tailed Eagle has fared better than most.6 The prima ...
Northern Corroboree Frog review of information
... extensive fires that occurred during January 2003 in Kosciuszko National Park burnt through much of the range of the species. These fires occurred during the peak breeding period and direct observations were made of male frogs perishing in nest sites due to heat exposure (DECC 2007). Based on the nu ...
... extensive fires that occurred during January 2003 in Kosciuszko National Park burnt through much of the range of the species. These fires occurred during the peak breeding period and direct observations were made of male frogs perishing in nest sites due to heat exposure (DECC 2007). Based on the nu ...
4.0 Billion Years of Earth Environmental Change
... However, similar climate changes have occurred at the end of each glacial event, of which there have been many dozens, and the megafauna survived all of those. ...
... However, similar climate changes have occurred at the end of each glacial event, of which there have been many dozens, and the megafauna survived all of those. ...
Plant Diversity of Forests
... Changes in biological diversity of natural ecosystems have in the second half of 20th century become a global problem due to intensive human activities. Therefore, higher attention has been paid to these problems. The year 1992 can be considered as the pivotal year in this field since in this year t ...
... Changes in biological diversity of natural ecosystems have in the second half of 20th century become a global problem due to intensive human activities. Therefore, higher attention has been paid to these problems. The year 1992 can be considered as the pivotal year in this field since in this year t ...
lesson 1: explore the ecosystem
... world’s biomes. Biomes are large and can be identified by the general type of biotic and abiotic factors they include. Within each biome are several smaller and varied ecosystems. ...
... world’s biomes. Biomes are large and can be identified by the general type of biotic and abiotic factors they include. Within each biome are several smaller and varied ecosystems. ...
Condition index monitoring supports conservation priorities for the
... and corticosterone concentrations during moult (seasonal pattern similar to Gouldian finches), haematocrit values did not differ among populations in a predictable way. Star and black-throated finch populations, which were predicted to be vulnerable to decline, showed evidence of poor condition duri ...
... and corticosterone concentrations during moult (seasonal pattern similar to Gouldian finches), haematocrit values did not differ among populations in a predictable way. Star and black-throated finch populations, which were predicted to be vulnerable to decline, showed evidence of poor condition duri ...
108790 No Species Text Q6 - Department of Environment, Water
... in South Australia. Nature conservation is defined as: societies’ actions focused on sustaining life on earth. ...
... in South Australia. Nature conservation is defined as: societies’ actions focused on sustaining life on earth. ...
PDF
... large degree of uncertainty. In fact, only about 1.5 million species have been described so far (Parker, 1982; Arnett, 1985), while scientists estimate that ...
... large degree of uncertainty. In fact, only about 1.5 million species have been described so far (Parker, 1982; Arnett, 1985), while scientists estimate that ...
UK Overseas Territories and Crown Dependiences: 2011
... environmental management in Anguilla. Other agencies such as the Department of Physical Planning; Department of Agriculture; Department of Fisheries and Marine Resources and the Environmental Health Department are also responsible for environmental and biodiversity related management, monitoring and ...
... environmental management in Anguilla. Other agencies such as the Department of Physical Planning; Department of Agriculture; Department of Fisheries and Marine Resources and the Environmental Health Department are also responsible for environmental and biodiversity related management, monitoring and ...
bakersfield cactus - Bakersfield Habitat Conservation Plan
... During the fall of last year, with the necessary permits and permissions, a team of scientists collected about 400 pads from both public and private land. The plants are being allowed to grow for nine months in a protected facility and will then be transplanted this fall. The goal is to establish si ...
... During the fall of last year, with the necessary permits and permissions, a team of scientists collected about 400 pads from both public and private land. The plants are being allowed to grow for nine months in a protected facility and will then be transplanted this fall. The goal is to establish si ...
Stopping evolution: Genetic management of captive
... cranes (Jones et al. 2002)] and primate species [e.g., lion-tailed macaques (Morin and Ryder 1991), bonobos (Reinartz 1977)], but more such work is needed. In order to assess what the age of genomics will contribute to species conservation, it is important to determine how effectively we can use mor ...
... cranes (Jones et al. 2002)] and primate species [e.g., lion-tailed macaques (Morin and Ryder 1991), bonobos (Reinartz 1977)], but more such work is needed. In order to assess what the age of genomics will contribute to species conservation, it is important to determine how effectively we can use mor ...
DEVELOPING THE COST OF LARGE CARNIVORE CONFLICT
... In our modern world, with shrinking wildlife habitat and increasing human populations, large carnivores have proven to be among the most difficult groups of mammals to conserve, (Mech, 1995). Their populations have been dramatically reduced during the last 200 years, with their large home range requ ...
... In our modern world, with shrinking wildlife habitat and increasing human populations, large carnivores have proven to be among the most difficult groups of mammals to conserve, (Mech, 1995). Their populations have been dramatically reduced during the last 200 years, with their large home range requ ...
Conservation biology
Conservation biology is the scientific study of nature and of Earth's biodiversity with the aim of protecting species, their habitats, and ecosystems from excessive rates of extinction and the erosion of biotic interactions. It is an interdisciplinary subject drawing on natural and social sciences, and the practice of natural resource management.The conservation ethic is based on the findings of conservation biology.