Evolutionary Explanations of the Function of Sleep
... Phylogeny of Sleep • The Phylogeny of Sleep project (see www.bu.edu/ phylogeny/) aims to collect data from different sources to help future understanding of sleep. The database is available for anyone to search, and highlights some of the problems with the data, e.g. it is not always reliable. In s ...
... Phylogeny of Sleep • The Phylogeny of Sleep project (see www.bu.edu/ phylogeny/) aims to collect data from different sources to help future understanding of sleep. The database is available for anyone to search, and highlights some of the problems with the data, e.g. it is not always reliable. In s ...
CO # 21: Ensure that structural habitat provided by corals on the
... deep, soft-sediment environments. Their longevity has not been well studied, but their smaller size suggests a shorter lifespan and hence lesser sensitivity to damage. Cup corals, sea pens and soft corals also contribute to diversity on the seafloor, but do not provide structural habitat in the sam ...
... deep, soft-sediment environments. Their longevity has not been well studied, but their smaller size suggests a shorter lifespan and hence lesser sensitivity to damage. Cup corals, sea pens and soft corals also contribute to diversity on the seafloor, but do not provide structural habitat in the sam ...
Marsupials as introduced species: Long- term - PalaeoWorks
... 11. Big-picture analysis of the global distribution of invasive species and their current invasion frontier, with back-tracing of their probable historic/prehistoric anthropogenic invasion pathway from an original natural source area, so as to distinguish their ‘natural’ versus introduced/anthropoge ...
... 11. Big-picture analysis of the global distribution of invasive species and their current invasion frontier, with back-tracing of their probable historic/prehistoric anthropogenic invasion pathway from an original natural source area, so as to distinguish their ‘natural’ versus introduced/anthropoge ...
Effects of Tree Species Diversity on Foliar Fungal Distribution
... Forests in Europe are important ecosystems that cover more than 1 billion hectares, the largest forest area of any continent in the world (FAO, 2015). The Food and Agriculture Organization of the United Nations (FAO) defines a forest as any land spanning more than 0.5 hectares with trees higher than ...
... Forests in Europe are important ecosystems that cover more than 1 billion hectares, the largest forest area of any continent in the world (FAO, 2015). The Food and Agriculture Organization of the United Nations (FAO) defines a forest as any land spanning more than 0.5 hectares with trees higher than ...
Landscape Ecology www.AssignmentPoint.com Landscape ecology
... spatially heterogeneous geographic areas characterized by diverse interacting patches or ecosystems, ranging from relatively natural terrestrial and aquatic systems such as forests, grasslands, and lakes to human-dominated environments including agricultural and urban settings. The most salient char ...
... spatially heterogeneous geographic areas characterized by diverse interacting patches or ecosystems, ranging from relatively natural terrestrial and aquatic systems such as forests, grasslands, and lakes to human-dominated environments including agricultural and urban settings. The most salient char ...
Deep-Sea Hydrothermal Vent Communities C
... by the physical and chemical environment, which sets limits on species’ distributions and abundances. Invertebrate species interactions determine community composition within these limits through processes that parallel those observed in coastal habitats, but sometimes in ways that challenge establi ...
... by the physical and chemical environment, which sets limits on species’ distributions and abundances. Invertebrate species interactions determine community composition within these limits through processes that parallel those observed in coastal habitats, but sometimes in ways that challenge establi ...
Changing Seascapes, Stochastic Connectivity, and Marine
... Urban et al. 2009) to advection/diffusion approaches (e.g., Okubo and Levin 1989; Largier 2003). However, most analyses of potential connectivity assume that landscape features are static, not changing over ecological timescales. This results in a deterministic view of potential connectivity, which ...
... Urban et al. 2009) to advection/diffusion approaches (e.g., Okubo and Levin 1989; Largier 2003). However, most analyses of potential connectivity assume that landscape features are static, not changing over ecological timescales. This results in a deterministic view of potential connectivity, which ...
read here - Countryside Alliance
... flood prevention strategy rather than a causal factor. 29. In addition to preserving heather habitat and peatland, grouse moor managers play a vital role in controlling invasive species. Over the past ten years grouse moor managers in England have treated approximately 65 square miles of invasive br ...
... flood prevention strategy rather than a causal factor. 29. In addition to preserving heather habitat and peatland, grouse moor managers play a vital role in controlling invasive species. Over the past ten years grouse moor managers in England have treated approximately 65 square miles of invasive br ...
Rethinking Community Assembly through the Lens
... complicated and dynamic. For one, the niche of a species includes both its response to and impact on the abiotic and biotic environment (as emphasized by Hutchinson and Elton, respectively; Hutchinson 1957, Chase & Leibold 2003). Thus, while an environmental filter may reasonably describe how abiotic ...
... complicated and dynamic. For one, the niche of a species includes both its response to and impact on the abiotic and biotic environment (as emphasized by Hutchinson and Elton, respectively; Hutchinson 1957, Chase & Leibold 2003). Thus, while an environmental filter may reasonably describe how abiotic ...
Fire regimes and fire effects in Chilean Araucaria Forests.
... Although plant-plant facilitation via the nurse effects seems to be common in Alpine environments, similar information for plant-plant facilitation via shared pollinators is limited. Pollinator sharing often implies interspecific pollen transfer (IPT). We studied IPT among a total of ~50 plant speci ...
... Although plant-plant facilitation via the nurse effects seems to be common in Alpine environments, similar information for plant-plant facilitation via shared pollinators is limited. Pollinator sharing often implies interspecific pollen transfer (IPT). We studied IPT among a total of ~50 plant speci ...
Green sturgeon - Essex Partnership
... such that there is a self-sustaining reproductive population. (Note: Since sufficient flows are not defined, a targeted study is needed to determine the flow. In this case, flow may be related to characteristics like duration, rate of change, magnitude, frequency, and timing). ...
... such that there is a self-sustaining reproductive population. (Note: Since sufficient flows are not defined, a targeted study is needed to determine the flow. In this case, flow may be related to characteristics like duration, rate of change, magnitude, frequency, and timing). ...
univERsity oF copEnhAGEn
... Beech flowers in April/May and is wind pollinated. Seed production starts at an age of 40 to 60 years (Fanta 1995, van der Werf 1995). It produces seeds in mast years. A frequency of every 5-7 years is reported, although this is variable and seed production in between these mast years is not uncomm ...
... Beech flowers in April/May and is wind pollinated. Seed production starts at an age of 40 to 60 years (Fanta 1995, van der Werf 1995). It produces seeds in mast years. A frequency of every 5-7 years is reported, although this is variable and seed production in between these mast years is not uncomm ...
influence of live coral cover and additional habitat factors on
... heterogeneity, and coral head size. While invertebrates showed no patterns of richness and diversity relative to live coral cover, fish richness and abundance peaked within the >50-75% live coral range, then declined at the highest percent live coral levels. Habitat heterogeneity was found to be the ...
... heterogeneity, and coral head size. While invertebrates showed no patterns of richness and diversity relative to live coral cover, fish richness and abundance peaked within the >50-75% live coral range, then declined at the highest percent live coral levels. Habitat heterogeneity was found to be the ...
An Introduction to Biocultural Diversity
... Biocultural Diversity Toolkit is meant to make such resources available in a user-friendly format to those who are interested in learning more about the concept and its practice, as well as about some of the tools and approaches that can assist local and global efforts to sustain and strengthen the ...
... Biocultural Diversity Toolkit is meant to make such resources available in a user-friendly format to those who are interested in learning more about the concept and its practice, as well as about some of the tools and approaches that can assist local and global efforts to sustain and strengthen the ...
Whooping Crane (Grus americana)
... common, its population dipped to only 14 adult birds early in the last century, at which point the species was at the brink of extinction. Conservation efforts in Canada and the U.S. not only rescued the remnant population from extinction, but later resulted in population increases. To help ensure p ...
... common, its population dipped to only 14 adult birds early in the last century, at which point the species was at the brink of extinction. Conservation efforts in Canada and the U.S. not only rescued the remnant population from extinction, but later resulted in population increases. To help ensure p ...
Invasive alien species in Switzerland. Factsheets
... parts of Switzerland (they need warm water for spawning). The two species are widely distributed in Europe today. However, due to difficulties in distinguishing them, the distributions of the individual species are not well known. ...
... parts of Switzerland (they need warm water for spawning). The two species are widely distributed in Europe today. However, due to difficulties in distinguishing them, the distributions of the individual species are not well known. ...
Chapter 7
... recorded. Estimates of current average market values of different classes of livestock species by age and sex were obtained from traders. Prices were converted to $US at the exchange rate of the time of the study. Predation counts are based on reports by farmers and the financial costs are estimates ...
... recorded. Estimates of current average market values of different classes of livestock species by age and sex were obtained from traders. Prices were converted to $US at the exchange rate of the time of the study. Predation counts are based on reports by farmers and the financial costs are estimates ...
Habitat displacement effect between two competing owl species in
... habitat conditions, food resources) and to manipulate species demography to obtain selected parameters (e.g., distribution, densities, reproductive success, etc.). Instead, investigations on natural borders of species range can provide unique and important insights despite their obvious limitations. ...
... habitat conditions, food resources) and to manipulate species demography to obtain selected parameters (e.g., distribution, densities, reproductive success, etc.). Instead, investigations on natural borders of species range can provide unique and important insights despite their obvious limitations. ...
生態學 - 國立臺南大學
... • Michael Begon is Professor of Ecology in the School of Biological Sciences at the University of Liverpool. He has authored several books in addition to Ecology and around 150 research articles. His current research interests are focused on the population ecology of pathogens in wildlife population ...
... • Michael Begon is Professor of Ecology in the School of Biological Sciences at the University of Liverpool. He has authored several books in addition to Ecology and around 150 research articles. His current research interests are focused on the population ecology of pathogens in wildlife population ...
Terrestrial Biodiversity
... affect the basic physical and chemical environment underpinning all life. Species will be affected individually by these changes, with flow-on effects for the structure and composition of presentday ecological communities, and potentially for changes in how ecosystems function and the services they ...
... affect the basic physical and chemical environment underpinning all life. Species will be affected individually by these changes, with flow-on effects for the structure and composition of presentday ecological communities, and potentially for changes in how ecosystems function and the services they ...
Proceedings of THE CEDAR SYMPOSIUM
... A group of people, including Terry Lewis, Bill Beese, Hans Roemer, and I, were discussing our impressions of the various sampling we had been doing. It was Terry Lewis who first brought up the subject of deer browsing and how severe it was where he was working on Lyell and Burnaby Islands, in South ...
... A group of people, including Terry Lewis, Bill Beese, Hans Roemer, and I, were discussing our impressions of the various sampling we had been doing. It was Terry Lewis who first brought up the subject of deer browsing and how severe it was where he was working on Lyell and Burnaby Islands, in South ...
Conservation review of the dama gazelle
... drastically declined (Devillers et al. 2005; Newby et al. 2008; Scholte 2013). Now only five small and fragmented subpopulations are thought to survive and numbers in the wild are estimated to total less than 300 (Figure 1). The main threats include unsustainable hunting and loss and degradation of ...
... drastically declined (Devillers et al. 2005; Newby et al. 2008; Scholte 2013). Now only five small and fragmented subpopulations are thought to survive and numbers in the wild are estimated to total less than 300 (Figure 1). The main threats include unsustainable hunting and loss and degradation of ...
WESTERN POND TURTLE (Clemmys marmorata
... average distance of over-wintering sites from the watercourse to be 167 meters. During terrestrial over-wintering, turtles may emerge to bask on sunny days, and may even move to new over-wintering sites (Reese 1996, Goodman 1996). After over-wintering, turtles may congregate in vernal pools before ...
... average distance of over-wintering sites from the watercourse to be 167 meters. During terrestrial over-wintering, turtles may emerge to bask on sunny days, and may even move to new over-wintering sites (Reese 1996, Goodman 1996). After over-wintering, turtles may congregate in vernal pools before ...
7. Annex 2 – Review of Theoretical Community Ecology
... to understand and use, and which have a tight functional relationship with the activity of concern. Metrics selected in this way instill confidence that the activity of concern has actually caused observed changes in the metric, and that reduction in activity levels will bring about a change in the ...
... to understand and use, and which have a tight functional relationship with the activity of concern. Metrics selected in this way instill confidence that the activity of concern has actually caused observed changes in the metric, and that reduction in activity levels will bring about a change in the ...
Biodiversity and ecosystem stability across scales in metacommunities
... Previous studies have mostly focused on the local stabilising effects of alpha diversity on alpha variability. Here, we explore how the local stabilising effect of diversity scales up to the regional scale and, more importantly, how alpha and beta diversity affect beta variability and thereby provid ...
... Previous studies have mostly focused on the local stabilising effects of alpha diversity on alpha variability. Here, we explore how the local stabilising effect of diversity scales up to the regional scale and, more importantly, how alpha and beta diversity affect beta variability and thereby provid ...
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.