Definitions, Categories and Criteria for Threatened and Priority
... ii) there are very few occurrences, each of which is small and/or isolated and extremely vulnerable to known threatening processes; iii) there may be many occurrences but total area is very small and each occurrence is small and/or isolated and extremely vulnerable to known threatening processes. C) ...
... ii) there are very few occurrences, each of which is small and/or isolated and extremely vulnerable to known threatening processes; iii) there may be many occurrences but total area is very small and each occurrence is small and/or isolated and extremely vulnerable to known threatening processes. C) ...
From tropics to tundra: Global convergence in plant functioning P B. R *
... biomes (analysis of covariance, same slopes analysis), but the proportion of total variation accounted for by biome was usually small. Intercept differences among biomes for all leaf pair relations in Table 1 usually were related to mean biome differences in SLA, which occur across a broad moisture ...
... biomes (analysis of covariance, same slopes analysis), but the proportion of total variation accounted for by biome was usually small. Intercept differences among biomes for all leaf pair relations in Table 1 usually were related to mean biome differences in SLA, which occur across a broad moisture ...
Small Mammals in Mbeere, Kenya
... CHAPTER ONE: INTRODUCTION, STUDY AIM AND SPECIFIC OBJECTIVES 1.1 INTRODUCTION The term land use refers to two aspects of habitat condition; it includes the patterns of actual use of land (immediate activities that change habitat conditions) as well as the ecological consequences of these activities ...
... CHAPTER ONE: INTRODUCTION, STUDY AIM AND SPECIFIC OBJECTIVES 1.1 INTRODUCTION The term land use refers to two aspects of habitat condition; it includes the patterns of actual use of land (immediate activities that change habitat conditions) as well as the ecological consequences of these activities ...
From tropics to tundra: Global convergence in plant functioning
... biomes (analysis of covariance, same slopes analysis), but the proportion of total variation accounted for by biome was usually small. Intercept differences among biomes for all leaf pair relations in Table 1 usually were related to mean biome differences in SLA, which occur across a broad moisture ...
... biomes (analysis of covariance, same slopes analysis), but the proportion of total variation accounted for by biome was usually small. Intercept differences among biomes for all leaf pair relations in Table 1 usually were related to mean biome differences in SLA, which occur across a broad moisture ...
Action Plan No.7 - Environment, Planning and Sustainable
... maintenance of the species’ potential for evolutionary development in the wild. This objective is to be achieved by: • Protecting and managing those sites where habitat of high conservation value remains. • Developing detailed management strategies for remaining sites of lower conservation value whe ...
... maintenance of the species’ potential for evolutionary development in the wild. This objective is to be achieved by: • Protecting and managing those sites where habitat of high conservation value remains. • Developing detailed management strategies for remaining sites of lower conservation value whe ...
Seed dispersal by pulp consumers, not ``legitimate`` seed
... different habitats, and (2) regardless of these differences, seed dispersal by each species will probably increase modeled population growth, as compared to a scenario where no seed dispersal occurs. METHODS Study system The demographic and seed dispersal data for G. viburnoides were collected betwe ...
... different habitats, and (2) regardless of these differences, seed dispersal by each species will probably increase modeled population growth, as compared to a scenario where no seed dispersal occurs. METHODS Study system The demographic and seed dispersal data for G. viburnoides were collected betwe ...
Population limitation in migrants - Global Raptor Information Network
... In a few such species, the effects of potential limiting factors have been confirmed locally by experiment. In theory, population sizes might also be limited by severe competition at restricted stopover sites, where bird densities are often high and food supplies heavily depleted, but (with one stri ...
... In a few such species, the effects of potential limiting factors have been confirmed locally by experiment. In theory, population sizes might also be limited by severe competition at restricted stopover sites, where bird densities are often high and food supplies heavily depleted, but (with one stri ...
The angiosperm radiation revisited, an ecological explanation for
... some confusion about their success in terms of species diversity (Crepet & Niklas 2009), and their success in terms of abundance and ecological dominance. Nevertheless, nowadays most authors assume that during the first millions of years angiosperms remained relatively rare until eventually an impre ...
... some confusion about their success in terms of species diversity (Crepet & Niklas 2009), and their success in terms of abundance and ecological dominance. Nevertheless, nowadays most authors assume that during the first millions of years angiosperms remained relatively rare until eventually an impre ...
1 Ecosystem Services and the Economics of
... sufficient analysis of ecosystem services should include not just the provision of consumptive benefits offered by foods, fuels, fibers and medicines or the nonconsumptive aesthetic, recreational, spiritual and totemic value offered by individual species or habitats, but also the mechanisms and org ...
... sufficient analysis of ecosystem services should include not just the provision of consumptive benefits offered by foods, fuels, fibers and medicines or the nonconsumptive aesthetic, recreational, spiritual and totemic value offered by individual species or habitats, but also the mechanisms and org ...
Mycorrhizal fungal establishment in agricultural soils: factors
... to inoculation may to a large extent be driven by increases in AMF abundance, rather than the ...
... to inoculation may to a large extent be driven by increases in AMF abundance, rather than the ...
Chapter 11
... – (a) Wave force can detach higher profile individuals – Clustering can protect from wave shock (as well as preventing excessive desiccation). – (b) Wave force is indirect – reduced or dissipated some – (c) Too dense can be a problem sometimes ...
... – (a) Wave force can detach higher profile individuals – Clustering can protect from wave shock (as well as preventing excessive desiccation). – (b) Wave force is indirect – reduced or dissipated some – (c) Too dense can be a problem sometimes ...
Potential use of energy expenditure of individual birds to assess
... the future. Stochastic extinctions might tend to be more common in areas with higher productivity (for example, areas with rich fluvial soils are prone to catastrophic flooding), so the long-term fitness of animals that occupy such a site could be compromised. For animals confined to a few sites, or ...
... the future. Stochastic extinctions might tend to be more common in areas with higher productivity (for example, areas with rich fluvial soils are prone to catastrophic flooding), so the long-term fitness of animals that occupy such a site could be compromised. For animals confined to a few sites, or ...
Biodiversity and Ecosystem Functioning Further
... Huston (1997) suggested that biodiversity was not the actual cause of greater stability in high-diversity plots following drought (Tilman 1996, Tilman & Downing 1994), nor of greater productivity in the foodweb experiment (Naeem et al. 1994, 1995), nor of greater productivity and greater use of soil ...
... Huston (1997) suggested that biodiversity was not the actual cause of greater stability in high-diversity plots following drought (Tilman 1996, Tilman & Downing 1994), nor of greater productivity in the foodweb experiment (Naeem et al. 1994, 1995), nor of greater productivity and greater use of soil ...
A seven-year study of individual variation in fruit
... seed dispersers. We know very little about the scheduling of reproduction or the magnitude of annual and individual variation in fruit production in most tropical tree species (Janzen, 1978). Seldom do we know if we are witnessing a 'normal' year, or even what a 'normal' year is in terms of plant re ...
... seed dispersers. We know very little about the scheduling of reproduction or the magnitude of annual and individual variation in fruit production in most tropical tree species (Janzen, 1978). Seldom do we know if we are witnessing a 'normal' year, or even what a 'normal' year is in terms of plant re ...
Projected condition - The Department of State Development
... of approvals to avoid, mitigate or offset impacts on MNES. Impacts are avoided, mitigated or offset through legislation, plans, policies and programs included in the Queensland Government’s Program. The planning and development assessment and monitoring regime outlined in the Program, limit and mini ...
... of approvals to avoid, mitigate or offset impacts on MNES. Impacts are avoided, mitigated or offset through legislation, plans, policies and programs included in the Queensland Government’s Program. The planning and development assessment and monitoring regime outlined in the Program, limit and mini ...
Gro I. van der Meeren, Ann-Lisbeth Agnalt, Even Moland, Esopen
... Alf Ring Kleiven1,2, Esben Moland Olsen 1 Jon Helge Vølstad1 ...
... Alf Ring Kleiven1,2, Esben Moland Olsen 1 Jon Helge Vølstad1 ...
Peckarsky et al. (2008) - Rocky Mountain Biological Laboratory
... Schmitz et al. 2004). NCE may be equally or more important than consumption to predator–prey population and community dynamics (Abrams 1990, Anholt and Werner 1995), often having associated indirect effects on other organisms in the community (e.g., Werner and Peacor 2003) and on ecosystem propertie ...
... Schmitz et al. 2004). NCE may be equally or more important than consumption to predator–prey population and community dynamics (Abrams 1990, Anholt and Werner 1995), often having associated indirect effects on other organisms in the community (e.g., Werner and Peacor 2003) and on ecosystem propertie ...
A. Project Background and Description
... dissolved oxygen and growth rates of aquatic organisms, which in turn, affect the abundance and survival of aquatic organisms. Stream temperature is also altered due to the presence of reservoirs. Outflow from Lemolo Lake is warmer than inflow from the North Umpqua River during most of the summer; t ...
... dissolved oxygen and growth rates of aquatic organisms, which in turn, affect the abundance and survival of aquatic organisms. Stream temperature is also altered due to the presence of reservoirs. Outflow from Lemolo Lake is warmer than inflow from the North Umpqua River during most of the summer; t ...
Aquatic Ecosystems
... dissolved oxygen, suspended solids, nutrients, and toxic chemicals), and biotic interactions (exploitation, predation, and competition). There are approximately 700 native freshwater species of fish in North America (Briggs 1986). Fish species richness is highest in the Mississippi River Basin where ...
... dissolved oxygen, suspended solids, nutrients, and toxic chemicals), and biotic interactions (exploitation, predation, and competition). There are approximately 700 native freshwater species of fish in North America (Briggs 1986). Fish species richness is highest in the Mississippi River Basin where ...
"S C --
... have with virtually every resource that we have exploited, that animal populations are not infinite and not all are quick to rebound from our excesses. (Ludwig et al 1993) As a result of popular outcry against whaling, sealing and the inadvertent by-catch of dolphins in tuna nets, the Marine Mammal ...
... have with virtually every resource that we have exploited, that animal populations are not infinite and not all are quick to rebound from our excesses. (Ludwig et al 1993) As a result of popular outcry against whaling, sealing and the inadvertent by-catch of dolphins in tuna nets, the Marine Mammal ...
Trophic Cascades: Predators, Prey, and the Changing
... kelp forests (Babcock et al. 1999), these do not appear to be as powerful or pervasive as the sea otter–induced trophic cascade in the North Pacific Ocean. A comparison of plant chemical defenses (tissue phlorotannin concentrations) and the resistance of herbivores to these putative defenses between ...
... kelp forests (Babcock et al. 1999), these do not appear to be as powerful or pervasive as the sea otter–induced trophic cascade in the North Pacific Ocean. A comparison of plant chemical defenses (tissue phlorotannin concentrations) and the resistance of herbivores to these putative defenses between ...
The role of animal behaviour in the study of endocrine
... region, U.S.A. Birds at contaminated sites built smaller, poorer-quality nests, and abandoned these nests more frequently, than did the birds at reference sites (McCarty & Secord 1999a, b). Largely because of the rate of nest abandonment, reproductive success was lower at the contaminated sites (McC ...
... region, U.S.A. Birds at contaminated sites built smaller, poorer-quality nests, and abandoned these nests more frequently, than did the birds at reference sites (McCarty & Secord 1999a, b). Largely because of the rate of nest abandonment, reproductive success was lower at the contaminated sites (McC ...
Map A - VernalPools.Org
... • Standardizes methods and terms among agencies and between planning efforts. • Provides more useful information on ecosystems, processes, habitats, species and vegetation structure. • Can be used predictively to model habitat requirements of species. ...
... • Standardizes methods and terms among agencies and between planning efforts. • Provides more useful information on ecosystems, processes, habitats, species and vegetation structure. • Can be used predictively to model habitat requirements of species. ...
Summary role as primary producers. In my thesis, I - NIOO-KNAW
... large grassland biodiversity experiment in Jena, Germany, named the Jena Experiment. In 2002, eighty two plots were established by sowing plant monocultures and species mixtures Because of ongoing human alterations of the biosphere, biodiversity is declining worldwide at on the floodplain of the riv ...
... large grassland biodiversity experiment in Jena, Germany, named the Jena Experiment. In 2002, eighty two plots were established by sowing plant monocultures and species mixtures Because of ongoing human alterations of the biosphere, biodiversity is declining worldwide at on the floodplain of the riv ...
Habitat Cascades: The Conceptual Context and
... and only touched briefly upon how facilitation cascades relate to other forms of indirect positive effects. Here, we expand the conceptual context of facilitation cascades and describe in detail a common type of facilitation cascade: the ‘‘ ‘habitat cascade’ where indirect positive effects on focal ...
... and only touched briefly upon how facilitation cascades relate to other forms of indirect positive effects. Here, we expand the conceptual context of facilitation cascades and describe in detail a common type of facilitation cascade: the ‘‘ ‘habitat cascade’ where indirect positive effects on focal ...
Biological Dynamics of Forest Fragments Project
The Biological Dynamics of Forest Fragments Project, originally called the Minimum Critical Size of Ecosystems Project is a large-scale ecological experiment looking at the effects of habitat fragmentation on tropical rainforest; it is one of the most expensive biology experiments ever run. The experiment, which was established in 1979 is located near Manaus, in the Brazilian Amazon. The project is jointly managed by the Smithsonian Institution and INPA, the Brazilian Institute for Research in the Amazon.The project was initiated in 1979 by Thomas Lovejoy to investigate the SLOSS debate. Initially named the Minimum Critical Size of Ecosystems Project, the project created forest fragments of sizes 1 hectare (2 acres), 10 hectares (25 acres), and 100 hectares (247 acres). Data were collected prior to the creation of the fragments and studies of the effects of fragmentation now exceed 25 years.As of October 2010 562 publications and 143 graduate dissertations and theses had emerged from the project.