What is Biodiversity
... water column. This movement of carbon through the oceans removes excess carbon from the atmosphere and regulates the earth's climate. Over the last century, humans have changed the atmosphere's composition by releasing large amounts of carbon dioxide. This excess carbon dioxide, along with other 'gr ...
... water column. This movement of carbon through the oceans removes excess carbon from the atmosphere and regulates the earth's climate. Over the last century, humans have changed the atmosphere's composition by releasing large amounts of carbon dioxide. This excess carbon dioxide, along with other 'gr ...
Mechanisms responsible for the positive diversity–productivity relationship in Minnesota grasslands
... ecosystem ecologists have also become interested in these interactions, because the consequences of species extinctions for ecosystem metrics such as aboveground productivity may depend on the same species interactions that determine community dynamics (Naeem et al. 1994; Petchey 2000; Cardinale et ...
... ecosystem ecologists have also become interested in these interactions, because the consequences of species extinctions for ecosystem metrics such as aboveground productivity may depend on the same species interactions that determine community dynamics (Naeem et al. 1994; Petchey 2000; Cardinale et ...
1369-1376
... sites and less well at confamilial and distant relative sites. This pattern is reversed later, as in terms of survival most species performed better when grown with distant than with close relatives. The authors suggest that more closely related species are more similar ecologically and that is the ...
... sites and less well at confamilial and distant relative sites. This pattern is reversed later, as in terms of survival most species performed better when grown with distant than with close relatives. The authors suggest that more closely related species are more similar ecologically and that is the ...
PDF - Smithsonian Tropical Research Institute
... under-represented, especially the former family, in comparison with their occurrence in other arboreal habitats (see Martin 1966; Couturier 1973; Basset 1985a). Empididae are most numerous in boreal, temperate or mountainous regions (Collin 1961) and most of those collected here belong to the subfam ...
... under-represented, especially the former family, in comparison with their occurrence in other arboreal habitats (see Martin 1966; Couturier 1973; Basset 1985a). Empididae are most numerous in boreal, temperate or mountainous regions (Collin 1961) and most of those collected here belong to the subfam ...
The intermediate disturbance hypothesis should be
... they failed to sample a sufficient range of disturbance frequencies or intensities. But methodological artifacts can cut both ways. For instance, published empirical studies might overstate the frequency of humped diversity–disturbance relationships because researchers tend to look for such relation ...
... they failed to sample a sufficient range of disturbance frequencies or intensities. But methodological artifacts can cut both ways. For instance, published empirical studies might overstate the frequency of humped diversity–disturbance relationships because researchers tend to look for such relation ...
Environment Landforms
... Escarpment and Oak Ridges Moraine (Tables 1 and 2), and how much is now protected from development as a result of the new legislation. Another measure used is the extent of valley and stream corridors, and areas of interference with wetlands, shorelines and watercourses that are fill-regulated as a ...
... Escarpment and Oak Ridges Moraine (Tables 1 and 2), and how much is now protected from development as a result of the new legislation. Another measure used is the extent of valley and stream corridors, and areas of interference with wetlands, shorelines and watercourses that are fill-regulated as a ...
Ruesink.pps
... – White, Ruesink, Trimble. History and management of native oysters (Ostrea conchaphila) in Washington State. In preparation for special issue of J Shellfish Res ...
... – White, Ruesink, Trimble. History and management of native oysters (Ostrea conchaphila) in Washington State. In preparation for special issue of J Shellfish Res ...
International Sage-grouse Forum (ISGF) (www.sage
... Purpose: To uncover the science regarding the management of the sagebrush ecosystem for sage-grouse at the landscape level. This session will highlight aspects of the research completed and on-going as part of the SageSTEP, US Geological Survey (USGS), US Forest Service (USFS), Brigham Young Univers ...
... Purpose: To uncover the science regarding the management of the sagebrush ecosystem for sage-grouse at the landscape level. This session will highlight aspects of the research completed and on-going as part of the SageSTEP, US Geological Survey (USGS), US Forest Service (USFS), Brigham Young Univers ...
Problems in the Measurement of Evenness in Ecology Rauno V
... Evenness measures should measure the equality of The use of diversity indices, which combine species richness and evenness of abundance distribution into a abundances in the community: maximum evenness single value, has often been criticized owing to the am- (1.0) arising when all species are equall ...
... Evenness measures should measure the equality of The use of diversity indices, which combine species richness and evenness of abundance distribution into a abundances in the community: maximum evenness single value, has often been criticized owing to the am- (1.0) arising when all species are equall ...
simulated predator extinctions
... Abstract. The rate of species loss is increasing at a global scale, and human-induced extinctions are biased toward predator species. We examined the effects of predator extinctions on a foundation species, the eastern oyster (Crassostrea virginica). We performed a factorial experiment manipulating ...
... Abstract. The rate of species loss is increasing at a global scale, and human-induced extinctions are biased toward predator species. We examined the effects of predator extinctions on a foundation species, the eastern oyster (Crassostrea virginica). We performed a factorial experiment manipulating ...
Seed dispersal strategies and the threat of defaunation in a Congo
... Recent studies indicate that seed dispersal plays a prominent role in recruitment limitation, gene flow, metapopulation dynamics, colonisation potential and plant migration in response to past and future climate change, maintenance of biodiversity, and more (Schupp et al. 2010). As predicted by mode ...
... Recent studies indicate that seed dispersal plays a prominent role in recruitment limitation, gene flow, metapopulation dynamics, colonisation potential and plant migration in response to past and future climate change, maintenance of biodiversity, and more (Schupp et al. 2010). As predicted by mode ...
Species Fact Sheets
... Spotted owls have a stocky body, short tail, and broad wings. Adults are brown with white spots across on the abdomen and have dark brown eyes. These owls nest in large cavities, hollows, and mistletoe balls in older conifer trees in the spring, and young fledge by the end of the summer. Spotted owl ...
... Spotted owls have a stocky body, short tail, and broad wings. Adults are brown with white spots across on the abdomen and have dark brown eyes. These owls nest in large cavities, hollows, and mistletoe balls in older conifer trees in the spring, and young fledge by the end of the summer. Spotted owl ...
Species-Specific Responses of Carnivores to Human
... birds, and mammals, including seven species of mammalian carnivores. Despite the lack of research studies, there is great concern that the destruction and modification of natural habitats has caused a reduction in the distribution and population numbers of these carnivores. The aim of this study was ...
... birds, and mammals, including seven species of mammalian carnivores. Despite the lack of research studies, there is great concern that the destruction and modification of natural habitats has caused a reduction in the distribution and population numbers of these carnivores. The aim of this study was ...
Biomes - SEPUP
... to come to the conclusion that the because its traits are likely to still be helpful to it in this new environment. The enviclimates of these two locations are ronment where an organism lives is influenced by both bioticc (living) and abiotic (nonliving) factors. Abiotic factors include climate and ...
... to come to the conclusion that the because its traits are likely to still be helpful to it in this new environment. The enviclimates of these two locations are ronment where an organism lives is influenced by both bioticc (living) and abiotic (nonliving) factors. Abiotic factors include climate and ...
Abstracts
... approaches assume water travels vertically through the snowpack, errors may be present due to neglecting a significant amount of lateral flow. The goal of this project is to understand the occurrence and hydrologic relevance of lateral flow in snow. One of the primary methods that will be used is th ...
... approaches assume water travels vertically through the snowpack, errors may be present due to neglecting a significant amount of lateral flow. The goal of this project is to understand the occurrence and hydrologic relevance of lateral flow in snow. One of the primary methods that will be used is th ...
The acid taste of climate change: 20th century acidification is
... drivers jointly influenced by their dynamics and the legacy of a systems’ history. Negative synergies between emerging climatically extreme events and past environmental impacts are expected to shift ecological communities to alternative stable states or towards hysteretic successional trajectories. ...
... drivers jointly influenced by their dynamics and the legacy of a systems’ history. Negative synergies between emerging climatically extreme events and past environmental impacts are expected to shift ecological communities to alternative stable states or towards hysteretic successional trajectories. ...
Biodiversity and ecosystem services: does species diversity
... The attitude towards nature in society is changing. From areas that need to be protected from human activities to a position of nature in the centre of society, where ecosystems provide services for society representing the utility factor of nature: our natural capital. Examples of this changing pos ...
... The attitude towards nature in society is changing. From areas that need to be protected from human activities to a position of nature in the centre of society, where ecosystems provide services for society representing the utility factor of nature: our natural capital. Examples of this changing pos ...
Nitrogen enrichment and plant communities
... fires (as opposed to human-caused fires) result in additional volatilization and deposition of N, a minimum of 3.2 Tg N/year is likely to be deposited as a result of “natural” fires (this number only considers fire at high latitudes).5 As N is recycled through detritus by decomposition, N is also vo ...
... fires (as opposed to human-caused fires) result in additional volatilization and deposition of N, a minimum of 3.2 Tg N/year is likely to be deposited as a result of “natural” fires (this number only considers fire at high latitudes).5 As N is recycled through detritus by decomposition, N is also vo ...
Spruce-fir forest - Spruce-fir forests occur on high mountaintops in
... Fraser fir dominance above 6,000 feet. ...
... Fraser fir dominance above 6,000 feet. ...
The Scottish Beaver Trial – The effects of beavers on Atlantic
... species can take many years to recolonise a habitat. Hence, even short breaks in lichen habitat continuity can result in the loss of lichen species from an area. The impact was restricted to a maximum of c. 60 m from a loch and within woodland on gentler, less bouldery slopes (Figure 3). Within this ...
... species can take many years to recolonise a habitat. Hence, even short breaks in lichen habitat continuity can result in the loss of lichen species from an area. The impact was restricted to a maximum of c. 60 m from a loch and within woodland on gentler, less bouldery slopes (Figure 3). Within this ...
Non-optimal animal movement in human
... habitat, patchy habitat with high-quality matrix, patchy habitat with low-quality matrix, and patchy, ephemeral habitat. Using this simplification I group the range of evolved movement parameters into four categories or movement types. I then discuss how these movement types interact with current hu ...
... habitat, patchy habitat with high-quality matrix, patchy habitat with low-quality matrix, and patchy, ephemeral habitat. Using this simplification I group the range of evolved movement parameters into four categories or movement types. I then discuss how these movement types interact with current hu ...
Collapse of the world`s largest herbivores
... Hunting large herbivores for body parts is also driving down populations of some species, especially the iconic ones. Organized crime is facilitating a dramatic decline of elephants and rhinoceros in parts of Africa and southern Asia, reversing decades of conservation accomplishments. Poaching and i ...
... Hunting large herbivores for body parts is also driving down populations of some species, especially the iconic ones. Organized crime is facilitating a dramatic decline of elephants and rhinoceros in parts of Africa and southern Asia, reversing decades of conservation accomplishments. Poaching and i ...
THE ROLE OF ABOVE-AND BELOWGROUND LINKAGES IN
... Biodiversity effects on soil processes explained by interspecific functional dissimilarity. Science 306: 1019-1020. [This study demonstrates the importance of decomposer functional diversity as opposed to number of decomposer species] 12. Hooper, D.U., Chapin III, F.S., Ewel, J.J., Hector, A., Incha ...
... Biodiversity effects on soil processes explained by interspecific functional dissimilarity. Science 306: 1019-1020. [This study demonstrates the importance of decomposer functional diversity as opposed to number of decomposer species] 12. Hooper, D.U., Chapin III, F.S., Ewel, J.J., Hector, A., Incha ...
Reconciliation ecology
Reconciliation ecology is the branch of ecology which studies ways to encourage biodiversity in human-dominated ecosystems. Michael Rosenzweig first articulated the concept in his book Win-Win Ecology, based on the theory that there is not enough area for all of earth’s biodiversity to be saved within designated nature preserves. Therefore, humans should increase biodiversity in human-dominated landscapes. By managing for biodiversity in ways that do not decrease human utility of the system, it is a ""win-win"" situation for both human use and native biodiversity. The science is based in the ecological foundation of human land-use trends and species-area relationships. It has many benefits beyond protection of biodiversity, and there are numerous examples of it around the globe. Aspects of reconciliation ecology can already be found in management legislation, but there are challenges in both public acceptance and ecological success of reconciliation attempts.