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... Predictions of the impact of nitrogen deposition to 2010 in upland heath and blanket bog suggested that characteristic dominants would not see marked change in habitat suitability. Although predicted reduction in soil C/N was expected to result in conditions more favourable for negative CSM indicato ...
... Predictions of the impact of nitrogen deposition to 2010 in upland heath and blanket bog suggested that characteristic dominants would not see marked change in habitat suitability. Although predicted reduction in soil C/N was expected to result in conditions more favourable for negative CSM indicato ...
Johnson and Thieltges 2010
... likely to cause a dilution effect or are simply understudied remains conjectural. Given that many of these mechanisms are difficult to differentiate from field data alone, it is also possible that field-observed correlations between species richness and disease risk represent the product of multiple ...
... likely to cause a dilution effect or are simply understudied remains conjectural. Given that many of these mechanisms are difficult to differentiate from field data alone, it is also possible that field-observed correlations between species richness and disease risk represent the product of multiple ...
participants of the dartmouth biology fsp 2013
... Cuerici Biological Station, at the Sirena Station of the Corcovado National Park, and at the Monteverde Biological Station. On Little Cayman Island, there are copies at the Little Cayman Research Center. Dartmouth faculty from the Department of Biological Sciences, along with two Ph.D. students from ...
... Cuerici Biological Station, at the Sirena Station of the Corcovado National Park, and at the Monteverde Biological Station. On Little Cayman Island, there are copies at the Little Cayman Research Center. Dartmouth faculty from the Department of Biological Sciences, along with two Ph.D. students from ...
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... al., 1986) now enable age to be determined with reasonable confidence. Studies at SAS on size at age for the species from the Falkland Islands fishery are being carried out and techniques for preparation and reading of statolith growth increments are being refined. At SAS, cephalopod growth is also ...
... al., 1986) now enable age to be determined with reasonable confidence. Studies at SAS on size at age for the species from the Falkland Islands fishery are being carried out and techniques for preparation and reading of statolith growth increments are being refined. At SAS, cephalopod growth is also ...
protecting, conserving and restoring biodiversity in ontario
... Ontario. Biodiversity or biological diversity refers to the intricate weave of Earth’s living organisms, their interrelationships and habitats, the genetic differences among them, and the ecological processes which sustain them. It is widely acknowledged that we are presently experiencing, on a glob ...
... Ontario. Biodiversity or biological diversity refers to the intricate weave of Earth’s living organisms, their interrelationships and habitats, the genetic differences among them, and the ecological processes which sustain them. It is widely acknowledged that we are presently experiencing, on a glob ...
State of Michigan’s Status and Strategy for Spiny Waterflea Management Scope Bythotrephes longimanus
... species such as the lake herring (Coregonus artedi) and yellow perch (Perca flavescens) (Manca et al. 2007). The full trophic effects of the spiny waterflea varie between systems and long-term effects are unclear, but the overall zooplankton biomass is generally decreased. This limits food for plank ...
... species such as the lake herring (Coregonus artedi) and yellow perch (Perca flavescens) (Manca et al. 2007). The full trophic effects of the spiny waterflea varie between systems and long-term effects are unclear, but the overall zooplankton biomass is generally decreased. This limits food for plank ...
Invasive Species: A Biodiversity Challenge!
... air, store and recycle water, and regenerate the soil; • reduced potential for medical and other discoveries in the natural world that would benefit humankind; • decreased economic benefit from agriculture, fisheries, forestry, tourism and recreation; and • r educed aesthetic value of our natural ...
... air, store and recycle water, and regenerate the soil; • reduced potential for medical and other discoveries in the natural world that would benefit humankind; • decreased economic benefit from agriculture, fisheries, forestry, tourism and recreation; and • r educed aesthetic value of our natural ...
The Role of Consumers in Community Diversity
... 1. Decomposers and producers are locked in an “antagonistic mutualistic” relationship. Environmental changes lead to inseparable responses by both; 2. Consumers affect rates of movement of materials among different pools; 3. Consumers can determine the distribution of biomass among trophic groups; 4 ...
... 1. Decomposers and producers are locked in an “antagonistic mutualistic” relationship. Environmental changes lead to inseparable responses by both; 2. Consumers affect rates of movement of materials among different pools; 3. Consumers can determine the distribution of biomass among trophic groups; 4 ...
Ecological impacts of invasive cane toads
... northeastern Queensland. They have since spread westwards (through Queensland, the Northern Territory, and into Western Australia) and southwards (into NSW). Concern about the toads’ impacts on wildlife spawned predictions that most native species encountering toads would be severely affected, and t ...
... northeastern Queensland. They have since spread westwards (through Queensland, the Northern Territory, and into Western Australia) and southwards (into NSW). Concern about the toads’ impacts on wildlife spawned predictions that most native species encountering toads would be severely affected, and t ...
Gall-forming and free-feeding herbivory along vertical gradients in a
... recorded: 1) number of mature leaves and active meristems/young leaves; 2) gall densities; and 3) number of leaves with 10% of leaf area lost to chewing insects. Since this figure represents global average leaf area loss in tropical wet forests, leaves scored above this average may be qualified as ...
... recorded: 1) number of mature leaves and active meristems/young leaves; 2) gall densities; and 3) number of leaves with 10% of leaf area lost to chewing insects. Since this figure represents global average leaf area loss in tropical wet forests, leaves scored above this average may be qualified as ...
The foraging behavior of granivorous rodents
... individuals of each prey species) in a patch that has both prey species than in a patch with only one prey species. Short-term apparent competition is this decreased survival of one prey species when in the presence of another prey species. The few studies that have examined predator behavior as a p ...
... individuals of each prey species) in a patch that has both prey species than in a patch with only one prey species. Short-term apparent competition is this decreased survival of one prey species when in the presence of another prey species. The few studies that have examined predator behavior as a p ...
Brachyura (Decapoda, Crustacea) of phytobenthic
... Grande Bay (sampling site XI); F-Sepetiba Bay (sampling site XII); G-Cabo Frio-Búzios (sampling site XIII); H- Macaé-northern State line (sampling site XIV). ...
... Grande Bay (sampling site XI); F-Sepetiba Bay (sampling site XII); G-Cabo Frio-Búzios (sampling site XIII); H- Macaé-northern State line (sampling site XIV). ...
Nutrient resorption of wetland graminoids is related to the type of
... (Del Arco, Escudero & Garrido 1991; Aerts 1996). It has therefore been proposed that selection at nutrientpoor sites does not promote high RE, but rather a long life span (Escudero et al. 1992; Eckstein et al. 1999) or low nutrient concentrations in litter (‘resorption proficiency’, Killingbeck 1996 ...
... (Del Arco, Escudero & Garrido 1991; Aerts 1996). It has therefore been proposed that selection at nutrientpoor sites does not promote high RE, but rather a long life span (Escudero et al. 1992; Eckstein et al. 1999) or low nutrient concentrations in litter (‘resorption proficiency’, Killingbeck 1996 ...
Tower Hamlets Local Biodiversity Action Plan 2014
... 1.4.1 The LBAP includes background information on how it fits in with other Council policies and initiatives, and with national and London-wide biodiversity plans. It then identifies priority habitats and species, setting objectives and, where appropriate, targets for each. Finally, there are four a ...
... 1.4.1 The LBAP includes background information on how it fits in with other Council policies and initiatives, and with national and London-wide biodiversity plans. It then identifies priority habitats and species, setting objectives and, where appropriate, targets for each. Finally, there are four a ...
(gey 402) assignment - abuad lms
... Tappan (1992) reranked Foraminifera as a class as it is now commonly regarded. The Foraminifera have typically been included in the Protozoa, or in the similar Protoctista or Protist kingdom. Compelling evidence, based primarily on molecular phylogenetics, exists for their belonging to a major group ...
... Tappan (1992) reranked Foraminifera as a class as it is now commonly regarded. The Foraminifera have typically been included in the Protozoa, or in the similar Protoctista or Protist kingdom. Compelling evidence, based primarily on molecular phylogenetics, exists for their belonging to a major group ...
Biodiversity - Pinelands Preservation Alliance
... Barrens uplands, wildfires are common, or were common before modern human cultures began suppressing wildfire. Pitch Pines have taken advantage of frequent fire by developing their own strategies for survival in the constant competition with oaks and other species for space, light, water and nutriti ...
... Barrens uplands, wildfires are common, or were common before modern human cultures began suppressing wildfire. Pitch Pines have taken advantage of frequent fire by developing their own strategies for survival in the constant competition with oaks and other species for space, light, water and nutriti ...
The interplay between habitat structure and chemical
... the success of their predatory strategies (e.g., Karkarey et al., 2014), or through the provision of resources that can mitigate the impacts of disturbances (e.g., shelter and food; Caley & StJohn, 1996; Syms & Jones, 2000). Complex habitats can also facilitate recovery (e.g., Kovalenko, Thomaz & Wa ...
... the success of their predatory strategies (e.g., Karkarey et al., 2014), or through the provision of resources that can mitigate the impacts of disturbances (e.g., shelter and food; Caley & StJohn, 1996; Syms & Jones, 2000). Complex habitats can also facilitate recovery (e.g., Kovalenko, Thomaz & Wa ...
Conservation priorities for species and ecosystems: primer (PDF
... Conservation Framework? Faced with the increasing number of species and ecosystems at risk and escalating threats such as climate change, resource managers and practitioners need a way to prioritize conservation challenges in order to allocate limited resources. The Conservation Framework provides a ...
... Conservation Framework? Faced with the increasing number of species and ecosystems at risk and escalating threats such as climate change, resource managers and practitioners need a way to prioritize conservation challenges in order to allocate limited resources. The Conservation Framework provides a ...
Younger Dryas Cladocera assemblages from two valley
... their latitudinal affinities (Harmsworth, 1968), but the ecology of some species is not yet clear (e.g. Camptocercus rectirostris has also been noted from deeper and colder sites in northern Fennoscandia: Korhola, 1999). Therefore, two factors – the local and the global climate – must be taken into ...
... their latitudinal affinities (Harmsworth, 1968), but the ecology of some species is not yet clear (e.g. Camptocercus rectirostris has also been noted from deeper and colder sites in northern Fennoscandia: Korhola, 1999). Therefore, two factors – the local and the global climate – must be taken into ...
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... including some 40% of Africa and approximately 35 % of the land surface of South Africa (Scholes & Walker 1993). Savannas are second to tropical forests in terms of their contribution to primary production, and represent a large portion of the terrestrial carbon pool (Atjay, Ketner & Duvigneaud 1987 ...
... including some 40% of Africa and approximately 35 % of the land surface of South Africa (Scholes & Walker 1993). Savannas are second to tropical forests in terms of their contribution to primary production, and represent a large portion of the terrestrial carbon pool (Atjay, Ketner & Duvigneaud 1987 ...
PHENOLOGICAL PATTERNS OF TERRESTRIAL PLANTS By
... patterns of germination, flowering, and fruiting (including dispersal). The phenological pattern of any life cycle event can be quantitatively defined as a statistical distribution characterized by such parameters as time of occurrence (onset, mean, mode), duration (range), synchrony (variance), and ...
... patterns of germination, flowering, and fruiting (including dispersal). The phenological pattern of any life cycle event can be quantitatively defined as a statistical distribution characterized by such parameters as time of occurrence (onset, mean, mode), duration (range), synchrony (variance), and ...
foraging ecology of the red-crowned parakeet
... plants examined; (2) present only small amounts (ones - tens) of a given food type present on scattered individual plants; (3) common food type widespread (hundreds thousands) and available on the majority of plants but not abundant; (4) abundant large amounts (tens of thousands) of a given food typ ...
... plants examined; (2) present only small amounts (ones - tens) of a given food type present on scattered individual plants; (3) common food type widespread (hundreds thousands) and available on the majority of plants but not abundant; (4) abundant large amounts (tens of thousands) of a given food typ ...
Climate and Species Richness Predict the Phylogenetic Structure of
... (i.e. contain more closely related species) in harsher environments, i.e. habitats with overall low rainfall, and high rain and/or temperature seasonality. Coping with harsh environments likely requires specific biological traits that are likely to be shared among closely related taxa. In contrast, ...
... (i.e. contain more closely related species) in harsher environments, i.e. habitats with overall low rainfall, and high rain and/or temperature seasonality. Coping with harsh environments likely requires specific biological traits that are likely to be shared among closely related taxa. In contrast, ...
Bifrenaria
Bifrenaria, abbreviated Bif. in horticultural trade, is a genus of plant in family Orchidaceae. It contains 20 species found in Panama, Trinidad and South America. There are no known uses for them, but their abundant, and at first glance artificial, flowers, make them favorites of orchid growers.The genus can be split in two clearly distinct groups: one of highly robust plants with large flowers, that encompass the first species to be classified under the genus Bifrenaria; other of more delicate plants with smaller flowers occasionally classified as Stenocoryne or Adipe. There are two additional species that are normally classified as Bifrenaria, but which molecular analysis indicate to belong to different orchid groups entirely. One is Bifrenaria grandis which is endemic to Bolívia and which is now placed in Lacaena, and Bifrenaria steyermarkii, an inhabitant of the northern Amazon Forest, which does not have an alternative classification.