The Effects of Summer Dams on Salmon and Steelhead
... or most of their flow, and some reaches may become dewatered. Such reductions in downstream flow have the potential to strand fishes along stream banks, or they may cause fishes to become isolated in small pools or other marginal habitats. Risk of stranding is generally highest in areas where the ch ...
... or most of their flow, and some reaches may become dewatered. Such reductions in downstream flow have the potential to strand fishes along stream banks, or they may cause fishes to become isolated in small pools or other marginal habitats. Risk of stranding is generally highest in areas where the ch ...
Mesotrophic Lochs WW1 - Tayside Biodiversity
... inclusion as key sites. However, a few that particularly stand out are the Lowes chain of lochs between Dunkeld and Blairgowrie (Craiglush, Lowes, Butterstone, Clunie and Marlee), the Black Loch at Cleish, and Loch Moraig. These represent relatively unpolluted or pristine examples. Loch Leven, possi ...
... inclusion as key sites. However, a few that particularly stand out are the Lowes chain of lochs between Dunkeld and Blairgowrie (Craiglush, Lowes, Butterstone, Clunie and Marlee), the Black Loch at Cleish, and Loch Moraig. These represent relatively unpolluted or pristine examples. Loch Leven, possi ...
- NDLScholarship
... and the will to do so. They further contend that continued allegiance to the Noah Principle prevents a real discussion of the choices we must make. Mann and Plummer thus propose an alternative system that would allow society to choose between endangered species and other concerns (e.g., whooping cra ...
... and the will to do so. They further contend that continued allegiance to the Noah Principle prevents a real discussion of the choices we must make. Mann and Plummer thus propose an alternative system that would allow society to choose between endangered species and other concerns (e.g., whooping cra ...
Wetlands At Risk - National Wildlife Federation
... plants, including the venus flytrap, sweet pitcher and spring-flowering goldenrod. If this habitat is lost, many plants may face extinction. Pocosins also support a rich array of rare fauna, including Hessel’s hairstreak butterfly, the endangered red-cockaded woodpecker, the American alligator, blac ...
... plants, including the venus flytrap, sweet pitcher and spring-flowering goldenrod. If this habitat is lost, many plants may face extinction. Pocosins also support a rich array of rare fauna, including Hessel’s hairstreak butterfly, the endangered red-cockaded woodpecker, the American alligator, blac ...
Functional traits, convergent evolution, and periodic tables of niches
... Ecology faces challenges not shared by chemistry that complicate attempts to create similar classifications. Organisms and their habitats reveal variation across multiple dimensions and scales, are subject to stochastic influences, and contemporary observations are, to varying degrees, influenced by ...
... Ecology faces challenges not shared by chemistry that complicate attempts to create similar classifications. Organisms and their habitats reveal variation across multiple dimensions and scales, are subject to stochastic influences, and contemporary observations are, to varying degrees, influenced by ...
FACTORS UNDERLYING THE INTERACTIONS BETWEEN
... I assessed major factors influencing the interactions between the mestizo community and wildlife of the Impenetrable, in the Argentine Chaco, and the ways in which these interactions are influenced by the larger economic and political context. I used a mixed qualitative and quantitative methods appr ...
... I assessed major factors influencing the interactions between the mestizo community and wildlife of the Impenetrable, in the Argentine Chaco, and the ways in which these interactions are influenced by the larger economic and political context. I used a mixed qualitative and quantitative methods appr ...
Sherwin Nature Reserve - Bermuda Department of Education
... pond in Bermuda, this nature reserve is one of a chain of wetlands from Southampton to Smiths Parish. Sherwin Nature Reserve represents one of the few tracts of natural inland water that has survived and not been used for landfill. In this densely developed residential area of Bermuda, the land prov ...
... pond in Bermuda, this nature reserve is one of a chain of wetlands from Southampton to Smiths Parish. Sherwin Nature Reserve represents one of the few tracts of natural inland water that has survived and not been used for landfill. In this densely developed residential area of Bermuda, the land prov ...
Scientist and Stakeholder Views on the Delta Ecosystem
... The litigation and public debates have taken place against a backdrop of increasing scientific understanding of the multiple causes of native fish species declines. There is now broad scientific recognition that a wide range of stressors—most resulting from human management of the water and land re ...
... The litigation and public debates have taken place against a backdrop of increasing scientific understanding of the multiple causes of native fish species declines. There is now broad scientific recognition that a wide range of stressors—most resulting from human management of the water and land re ...
Morten Tønnessen Is a wolf wild as long as it does not know that it is
... (all current wolves originate from immigrants from the East), one recurring argument goes, they can hardly be considered as endangered — the Scandinavian wolf is dead and gone. In the Scandinavian context there is no doubt that today’s wolves are endangered, by illegal hunting and a still pressing r ...
... (all current wolves originate from immigrants from the East), one recurring argument goes, they can hardly be considered as endangered — the Scandinavian wolf is dead and gone. In the Scandinavian context there is no doubt that today’s wolves are endangered, by illegal hunting and a still pressing r ...
Unifying sources and sinks in ecology andEarth sciences
... introduced in population and community ecology with a more distinct spatial connotation for local populations or habitats in which population persistence is due to immigration of individuals (sinks) and those from which these immigrants originate (sources) (Holt, 1984, 1985; Shmida & Ellner, 1984). ...
... introduced in population and community ecology with a more distinct spatial connotation for local populations or habitats in which population persistence is due to immigration of individuals (sinks) and those from which these immigrants originate (sources) (Holt, 1984, 1985; Shmida & Ellner, 1984). ...
Supplementary Online Material
... Predicted future changes to species interactions resulting from the effects of each global environmental change (GEC) driver. Arrows with solid outlines indicate nutrient and energy flow, while double-headed arrows with dotted outlines indicate resource competition. + and – symbols within arrows ind ...
... Predicted future changes to species interactions resulting from the effects of each global environmental change (GEC) driver. Arrows with solid outlines indicate nutrient and energy flow, while double-headed arrows with dotted outlines indicate resource competition. + and – symbols within arrows ind ...
Fish Conservation and Management Strategy for Alberta
... regulations in consultation with the public and First Nations. These responsibilities are delivered through ESRD’s Fisheries Management branch. Fisheries Management is also mandated to provide information to the public for educational purposes and to encourage public participation in the wise manage ...
... regulations in consultation with the public and First Nations. These responsibilities are delivered through ESRD’s Fisheries Management branch. Fisheries Management is also mandated to provide information to the public for educational purposes and to encourage public participation in the wise manage ...
Programme and Abstracts - ta
... We will spend the whole day walking and collecting spiders in the Pavlovské vrchy Hills protected area and nearby areas. The walk will be about 6 km long. Lunch will be provided as a package. The Pavlovské vrchy Hills are located approximately 40 km south of Brno. We will go to the top of the hill, ...
... We will spend the whole day walking and collecting spiders in the Pavlovské vrchy Hills protected area and nearby areas. The walk will be about 6 km long. Lunch will be provided as a package. The Pavlovské vrchy Hills are located approximately 40 km south of Brno. We will go to the top of the hill, ...
7From the Past to the Future…
... The low densities of desert plants and animals, and their generally slow rates of growth and reproduction, mean that losses can be significant and long lasting. It is for these reasons that the coastal desert is often described as being ‘fragile’. Similarly, since many species are endemic (see page ...
... The low densities of desert plants and animals, and their generally slow rates of growth and reproduction, mean that losses can be significant and long lasting. It is for these reasons that the coastal desert is often described as being ‘fragile’. Similarly, since many species are endemic (see page ...
Measuring what matters - International Fund for Animal Welfare
... International Fund for Animal Welfare. The answer is part of a debate about the reasons for saving nature and biodiversity that is currently raging in the conservation community. Are all our efforts for the animals’ benefit, or is it for us? IFAW believes that it is for both. In our view, the fate o ...
... International Fund for Animal Welfare. The answer is part of a debate about the reasons for saving nature and biodiversity that is currently raging in the conservation community. Are all our efforts for the animals’ benefit, or is it for us? IFAW believes that it is for both. In our view, the fate o ...
Plastic responses in juvenile wood frog (Rana sylvatica)
... genetic effects may cause significant variation in phenotypic morphology among wood frog populations (Michel 2011, Relyea 2002a). Existing results confirm that response to predatorreleased chemical cues vary according to local genetics (Weider and Pijanowska 1993, Spitze 1992). Likewise, studies con ...
... genetic effects may cause significant variation in phenotypic morphology among wood frog populations (Michel 2011, Relyea 2002a). Existing results confirm that response to predatorreleased chemical cues vary according to local genetics (Weider and Pijanowska 1993, Spitze 1992). Likewise, studies con ...
Aquatic Species at Risk in the Thames River Watershed, Ontario
... phosphorus loadings; 3) forest cover cleared for agricultural or urban development; 4) faulty private septic systems; 5) significant inputs of industrial discharges and non-urban industrial waste; 6) agricultural runoff; 7) bank alterations; 8) introduced species; and 9) over-logging (UTRCA 2001). T ...
... phosphorus loadings; 3) forest cover cleared for agricultural or urban development; 4) faulty private septic systems; 5) significant inputs of industrial discharges and non-urban industrial waste; 6) agricultural runoff; 7) bank alterations; 8) introduced species; and 9) over-logging (UTRCA 2001). T ...
Ecological and political issues surrounding decommissioning
... political climate in the Gulf of Mexico for ‘‘rigs-to-reefs’’ programs, conflicting social values among stakeholders in Southern California increases the need for understanding ecological impacts of various decommissioning alternatives (which range from total removal to allowing some or all of platfo ...
... political climate in the Gulf of Mexico for ‘‘rigs-to-reefs’’ programs, conflicting social values among stakeholders in Southern California increases the need for understanding ecological impacts of various decommissioning alternatives (which range from total removal to allowing some or all of platfo ...
COMPETITION AND MORPHOLOGICAL SIMILARITY: THE CASE ... THE "SNAKE-LIKE" LIZARDS ANGUIS FRAGILIS (ANGUIDAE) AND
... species of the old world, cf. Shine, 1 980), but there are also sorne interesting cases of species living in the same geographie regions which show this kind of morphological adaptation. When such species are sympatric, a potentially strong interspecific competition could be hypothesized (Williams, ...
... species of the old world, cf. Shine, 1 980), but there are also sorne interesting cases of species living in the same geographie regions which show this kind of morphological adaptation. When such species are sympatric, a potentially strong interspecific competition could be hypothesized (Williams, ...
Published Version
... Manuscript received 13 November 2015; revised 3 February 2016; accepted 15 February 2016. Corresponding Editor: W. E. Snyder. ...
... Manuscript received 13 November 2015; revised 3 February 2016; accepted 15 February 2016. Corresponding Editor: W. E. Snyder. ...
Key - Scioly.org
... demonstrated understanding of habitat fragmentation – 1pt habitat fragmentation—existing habitat is broken up b. (2pts): Example: pertinent organism listed and effect of habitat loss on named organism given – 1pt demonstrated understanding of habitat loss – 1pt habitat loss – existing habitat is des ...
... demonstrated understanding of habitat fragmentation – 1pt habitat fragmentation—existing habitat is broken up b. (2pts): Example: pertinent organism listed and effect of habitat loss on named organism given – 1pt demonstrated understanding of habitat loss – 1pt habitat loss – existing habitat is des ...
The Jamaican Iguana Pilot Final Report
... Following another successful campaign during the 2011-2012 period, the JIRG once again recorded a record year for recovering the Critically Endangered Jamaican iguana during the 2012-2013 period. Most notably, we recorded another record year for females nesting at the primary communal nesting sites ...
... Following another successful campaign during the 2011-2012 period, the JIRG once again recorded a record year for recovering the Critically Endangered Jamaican iguana during the 2012-2013 period. Most notably, we recorded another record year for females nesting at the primary communal nesting sites ...
DENSITY-DEPENDENT PREDATION, HABITAT VARIATION, AND
... Abstract. The persistence of prey encountering intense predation varies by species, prey density, and habitat type; however, the collective impact of these factors has rarely been tested experimentally in natural marine systems. Using the thin-shelled clams Mya arenaria and Macoma balthica as prey, ...
... Abstract. The persistence of prey encountering intense predation varies by species, prey density, and habitat type; however, the collective impact of these factors has rarely been tested experimentally in natural marine systems. Using the thin-shelled clams Mya arenaria and Macoma balthica as prey, ...
biodiversity conservation technologies in fisheries
... Abstract: Overfishing and irresponsible fishing practices have long been recognized as leading causes that have reduced aquatic biodiversity, along with other causes such as pollution, habitat destruction and fragmentation, non-native species invasions and climate change. The FAO Code of Conduct for ...
... Abstract: Overfishing and irresponsible fishing practices have long been recognized as leading causes that have reduced aquatic biodiversity, along with other causes such as pollution, habitat destruction and fragmentation, non-native species invasions and climate change. The FAO Code of Conduct for ...
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.