Richness and species composition of arboreal arthropods affected
... Whittaker and Heegaard 2003), recent syntheses indicate that, at local scales, this pattern commonly is humpshaped in plant communities, but is more often a simple positive relationship within animal communities (Waide et al. 1999; Mittelbach et al. 2001). Experimental manipulation of top predators ...
... Whittaker and Heegaard 2003), recent syntheses indicate that, at local scales, this pattern commonly is humpshaped in plant communities, but is more often a simple positive relationship within animal communities (Waide et al. 1999; Mittelbach et al. 2001). Experimental manipulation of top predators ...
Domestic Stock Grazing to Enhance Woodland Biodiversity
... Feeding preferences and behaviour 6. Figure 16 shows the broad variation in diet for domestic stock. Cattle and horses are generally classed as grazing species, being low selective herbaceous feeders (taking mainly grasses and other ground vegetation) whilst sheep and goats are more selective and te ...
... Feeding preferences and behaviour 6. Figure 16 shows the broad variation in diet for domestic stock. Cattle and horses are generally classed as grazing species, being low selective herbaceous feeders (taking mainly grasses and other ground vegetation) whilst sheep and goats are more selective and te ...
Competition - Cal State LA
... • A concept that encompasses all of the individual environmental requirements of a species • This is definitely an abstract concept, but it helps us to organize and explain ecological phenomena ...
... • A concept that encompasses all of the individual environmental requirements of a species • This is definitely an abstract concept, but it helps us to organize and explain ecological phenomena ...
Silver birch (Betula pendula)
... Central European countries. An additional measure to protect the natural genetic composition is to select in situ areas for genetic conservation either for birch alone or as mixed forest with other species. Such areas can be nature conservation areas or gene reserve forests under commercial forestry ...
... Central European countries. An additional measure to protect the natural genetic composition is to select in situ areas for genetic conservation either for birch alone or as mixed forest with other species. Such areas can be nature conservation areas or gene reserve forests under commercial forestry ...
Sage Grouse Habitat Requirements
... seasonal basis. Most of their preferred habitat is found in low rolling hills and adjacent valleys. Optional habitat is a diverse mosaic of sagebrushgrass with varying heights of sagebrush and a diverse understory of perennial grasses and forbs (broadleaf herbaceous plants). The proportion of sagebr ...
... seasonal basis. Most of their preferred habitat is found in low rolling hills and adjacent valleys. Optional habitat is a diverse mosaic of sagebrushgrass with varying heights of sagebrush and a diverse understory of perennial grasses and forbs (broadleaf herbaceous plants). The proportion of sagebr ...
scoped environmental impact study
... other natural features that meet the criteria for designation as natural heritage system (NHS) components will be retained and protected with setbacks and other buffer management measures determined through this Scoped EIS. The site is located within the Eramosa River Watershed. The subject property ...
... other natural features that meet the criteria for designation as natural heritage system (NHS) components will be retained and protected with setbacks and other buffer management measures determined through this Scoped EIS. The site is located within the Eramosa River Watershed. The subject property ...
Chapter 12 Natural Environment The State of Our Biodiversity
... Although 90% of the Waitakere Ranges has returned to native bush, vegetation patterns have been altered, with the majority of vegetation now forming bands of successional and regenerating forest and scrub. A few areas have remained in their original state (e.g. the Cascades Kauri Park) and from thes ...
... Although 90% of the Waitakere Ranges has returned to native bush, vegetation patterns have been altered, with the majority of vegetation now forming bands of successional and regenerating forest and scrub. A few areas have remained in their original state (e.g. the Cascades Kauri Park) and from thes ...
ThemeGallery PowerTemplate
... Interference competition can also occur in sessile species. Example: The acorn barnacle often crushes or smothers nearby individuals of another barnacle species as it grows. As a result, it directly prevents the other species from living in most portions of a rocky intertidal zone. ...
... Interference competition can also occur in sessile species. Example: The acorn barnacle often crushes or smothers nearby individuals of another barnacle species as it grows. As a result, it directly prevents the other species from living in most portions of a rocky intertidal zone. ...
Conceptual Ecological Modelling of Shallow Sublittoral Sand
... demonstrate the ecological links, drivers and ecosystem functions which occur in shallow sublittoral sand habitats. The models reflect the non impacted state of the ecosystem (exclusive of anthropogenic influence) and will act as control models indicative of the natural state and variability of the ...
... demonstrate the ecological links, drivers and ecosystem functions which occur in shallow sublittoral sand habitats. The models reflect the non impacted state of the ecosystem (exclusive of anthropogenic influence) and will act as control models indicative of the natural state and variability of the ...
Effects of the non-native amphibian species Discoglossus pictus on
... succeed and others fail in establishing themselves and spreading over a range into which they have been introduced, but quantifying the consequences of invasion on native communities is much more difficult. However, the negative impact of biological invasions on communities and ecosystem dynamics is ...
... succeed and others fail in establishing themselves and spreading over a range into which they have been introduced, but quantifying the consequences of invasion on native communities is much more difficult. However, the negative impact of biological invasions on communities and ecosystem dynamics is ...
Power, M.E., D. Tilman, J.A. Estes, B.A. Menge, W.J. Bond, L.S. Mills
... effects, and keystones would be rare. ( b ) In some communities, the CI distribu- did not resolve prey to species, and tion may have several modes. with kev- Rafaelli and Hall (1992) could mastone species falling into modes that are nipulate predators such as shorebirds sufficiently far from zero. o ...
... effects, and keystones would be rare. ( b ) In some communities, the CI distribu- did not resolve prey to species, and tion may have several modes. with kev- Rafaelli and Hall (1992) could mastone species falling into modes that are nipulate predators such as shorebirds sufficiently far from zero. o ...
Marine Protected Areas: A review of their use for delivering marine
... best use of marine science, sustainable fisheries, work on marine ecosystem indicators and other Government commitments set out in the UK strategy for the conservation and sustainable development of the marine environment (Defra 2002). This report illustrates and provides evidence of how existing MP ...
... best use of marine science, sustainable fisheries, work on marine ecosystem indicators and other Government commitments set out in the UK strategy for the conservation and sustainable development of the marine environment (Defra 2002). This report illustrates and provides evidence of how existing MP ...
Human Appropriation of Net Primary Production as An
... of species-areatheory (37), which relies on the theory of islandbiogeography by MacArthur and Wilson (39). The core of this theory is that the number of species on an island is a steady state between immigration (and speciation) and extinction, and the bigger the island, the greater a number of spec ...
... of species-areatheory (37), which relies on the theory of islandbiogeography by MacArthur and Wilson (39). The core of this theory is that the number of species on an island is a steady state between immigration (and speciation) and extinction, and the bigger the island, the greater a number of spec ...
Common Name: CHICKAMAUGA CRAYFISH Scientific Name
... system in Catoosa, Walker, and Whitfield Counties of Georgia, and Hamilton County, Tennessee. All of these locations lie in the Ridge and Valley physiographic province. It has been collected in about 15 locations in the Georgia portion of its range. Threats: Small range size makes this species vulne ...
... system in Catoosa, Walker, and Whitfield Counties of Georgia, and Hamilton County, Tennessee. All of these locations lie in the Ridge and Valley physiographic province. It has been collected in about 15 locations in the Georgia portion of its range. Threats: Small range size makes this species vulne ...
Wildlife in Managed Forests — Oregon Forests as
... moist Douglas-fir–hemlock forests along the coast to the stately ponderosa pine stands of central Oregon to the highelevation firs, larches and aspens of the Wallowas.1 Within these ecoregions are forests of varying ages and composition, managed for a wide range of objectives: from wilderness to rec ...
... moist Douglas-fir–hemlock forests along the coast to the stately ponderosa pine stands of central Oregon to the highelevation firs, larches and aspens of the Wallowas.1 Within these ecoregions are forests of varying ages and composition, managed for a wide range of objectives: from wilderness to rec ...
Mammals of the Bodoquena Mountains, Mammals of the
... mountains (Fecho dos Morros; 500 to 800 m) at west (AB’SABER 1988). This second region holds a large indigenous reserve (Kadiweus, with nearly 530.000 ha) at northwest, and is extensively dominated by preserved cerradão (arboreal savanna), but with pasture lands at southwest. However, ecotourism has ...
... mountains (Fecho dos Morros; 500 to 800 m) at west (AB’SABER 1988). This second region holds a large indigenous reserve (Kadiweus, with nearly 530.000 ha) at northwest, and is extensively dominated by preserved cerradão (arboreal savanna), but with pasture lands at southwest. However, ecotourism has ...
BIODIVERSITY-ECOSYSTEM FUNCTION RESEARCH
... not been fully offset by extinctions of natives. With the caveat that the trend in increasing local diversity may be system- or biome-specific, or transient, these data complicate conservation arguments based on small-scale BDEF experiments. The fact that exotic species often increase local and regi ...
... not been fully offset by extinctions of natives. With the caveat that the trend in increasing local diversity may be system- or biome-specific, or transient, these data complicate conservation arguments based on small-scale BDEF experiments. The fact that exotic species often increase local and regi ...
From regional to global patterns in vertebrate scavenger
... Food wasted into ecosystems by human activities such as livestock farming, fishing or hunting is rapidly increasing across the planet, but their ecological impacts, although recognized, remain poorly understood (Oro et al., 2013). A large part of these anthropogenic food subsidies are provided as ca ...
... Food wasted into ecosystems by human activities such as livestock farming, fishing or hunting is rapidly increasing across the planet, but their ecological impacts, although recognized, remain poorly understood (Oro et al., 2013). A large part of these anthropogenic food subsidies are provided as ca ...
What does ecological modelling model? A proposed classification of
... ENMs calculated with presence/absence, presence and pseudoabsence, or presence-only data can be therefore considered representations of different realized niches. If we use a welldistributed dataset of true absences (including all absences from suitable habitats), the resulting ENMs approximates to ...
... ENMs calculated with presence/absence, presence and pseudoabsence, or presence-only data can be therefore considered representations of different realized niches. If we use a welldistributed dataset of true absences (including all absences from suitable habitats), the resulting ENMs approximates to ...
RedmanBookPPT
... • There is also a large class of beasts which profit from the environmental conditions wrought by humans and therefore have become closely linked to them. These animals are often referred to as synanthropes. Pigeons, sparrows, rats and mice, squirrel, etc. The House Sparrow covers one quarter of Ear ...
... • There is also a large class of beasts which profit from the environmental conditions wrought by humans and therefore have become closely linked to them. These animals are often referred to as synanthropes. Pigeons, sparrows, rats and mice, squirrel, etc. The House Sparrow covers one quarter of Ear ...
Late Quaternary Extinctions: State of the Debate
... 25 years to explain the LQE. Here, we offer a continent-by-continent summary of the LQE, focusing mostly on mammals. We do not discuss Holocene island extinctions in any detail because most researchers accept that anthropogenic factors were pivotal. We evaluate the main hypotheses proposed to explai ...
... 25 years to explain the LQE. Here, we offer a continent-by-continent summary of the LQE, focusing mostly on mammals. We do not discuss Holocene island extinctions in any detail because most researchers accept that anthropogenic factors were pivotal. We evaluate the main hypotheses proposed to explai ...
The Aegean archipelago: a natural laboratory of
... and has been the stage for a very long interaction between human civilizations and local ecosystems. This work presents insights that have been gained from past and current relevant research in the area, highlighting also the importance of the Aegean archipelago as a useful model to address many maj ...
... and has been the stage for a very long interaction between human civilizations and local ecosystems. This work presents insights that have been gained from past and current relevant research in the area, highlighting also the importance of the Aegean archipelago as a useful model to address many maj ...
Desert Renewable Energy Conservation Plan Land Use Plan
... researchers from around the world to study the ecological and cultural resources of this area. ...
... researchers from around the world to study the ecological and cultural resources of this area. ...
CBD Fourth National Report
... Zambia is endowed with an abundance of natural resources and a fairly rich biological diversity. Like other developing countries, Zambia is highly dependent on the exploitation of biological resources for the livelihood of the majority of its people especially those living in rural areas. Since the ...
... Zambia is endowed with an abundance of natural resources and a fairly rich biological diversity. Like other developing countries, Zambia is highly dependent on the exploitation of biological resources for the livelihood of the majority of its people especially those living in rural areas. Since the ...
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.