Forest clear-cutting causes small workers in the polydomous
... forest interiors) are constructed from the original data (10 workers/year/nest) while the data points shown in the figure are colony means (pooled over two years due to non-significant interactions within habitat types). ...
... forest interiors) are constructed from the original data (10 workers/year/nest) while the data points shown in the figure are colony means (pooled over two years due to non-significant interactions within habitat types). ...
Screening Matrix for Shellfish Culture in Streamstown Bay, Co. Galway
... Intertidal oyster and clam culture sites are accessed via vehicle (tractors) along designated routes through the shore. As a consequence, noise and pollution e.g as a result of a fuel spill may present a risk to features of adjoining Natura sites. The risks are not considered significant at current ...
... Intertidal oyster and clam culture sites are accessed via vehicle (tractors) along designated routes through the shore. As a consequence, noise and pollution e.g as a result of a fuel spill may present a risk to features of adjoining Natura sites. The risks are not considered significant at current ...
Course Content - Postgraduate Institute of Science
... to local people is integral in ecotourism. However, ecotourism could lead to overuse of natural resources. Many ecotourist projects are not properly appraised. The guidelines that do exist mostly deal with the obvious issues such as changes in land use patterns, removal of forest trees, and frighten ...
... to local people is integral in ecotourism. However, ecotourism could lead to overuse of natural resources. Many ecotourist projects are not properly appraised. The guidelines that do exist mostly deal with the obvious issues such as changes in land use patterns, removal of forest trees, and frighten ...
Evenness drives consistent diversity effects in intensive grassland
... Fig. 2 Graphical representation of (a) the four-species simplex design and (b) the relationship between sown evenness (E ) and richness in the simplex. (a) Each point in the tetrahedron represents a community with its position determined by its sown relative abundance pattern (P1, P2, P3, P4). Commu ...
... Fig. 2 Graphical representation of (a) the four-species simplex design and (b) the relationship between sown evenness (E ) and richness in the simplex. (a) Each point in the tetrahedron represents a community with its position determined by its sown relative abundance pattern (P1, P2, P3, P4). Commu ...
ENVIRONMENTAL CONDITIONS REPORT
... present in the study area, to identify its ecological conservation values and to discuss the condition of the fauna with particular reference to implications of water resource management. Unlike the other ecosystem components considered in Appendices A to H, the condition of the other vertebrate fau ...
... present in the study area, to identify its ecological conservation values and to discuss the condition of the fauna with particular reference to implications of water resource management. Unlike the other ecosystem components considered in Appendices A to H, the condition of the other vertebrate fau ...
Agriculture, Ecosystems and Environment The
... diversity of this region we do not know the extent to which this variation matches the trait variability observed more generally within the Australian flora. The species are not mutually exclusive in their mode of nutrient acquisition, but we expected that different groups would occupy different area ...
... diversity of this region we do not know the extent to which this variation matches the trait variability observed more generally within the Australian flora. The species are not mutually exclusive in their mode of nutrient acquisition, but we expected that different groups would occupy different area ...
P for two – intercropping as a means to better exploit soil P
... A major challenge for agroecosystem management in the coming decades is to succeed their necessary ecological intensification, in order to cover global food demand while decreasing agricultural inputs such as fertilisers (Cassman 1999). As pointed out by Vance et al. (2003), by 2030, world populatio ...
... A major challenge for agroecosystem management in the coming decades is to succeed their necessary ecological intensification, in order to cover global food demand while decreasing agricultural inputs such as fertilisers (Cassman 1999). As pointed out by Vance et al. (2003), by 2030, world populatio ...
Document
... they provide, and it is widely accepted that human activities contribute substantially to their spread. In a study of fifty-two north Mississippi wetlands, approximately 10% of the vascular plant species encountered were non-native, and 60% of the wetlands surveyed contained at least one plant speci ...
... they provide, and it is widely accepted that human activities contribute substantially to their spread. In a study of fifty-two north Mississippi wetlands, approximately 10% of the vascular plant species encountered were non-native, and 60% of the wetlands surveyed contained at least one plant speci ...
CMS14380 EIA document Appendix 3 L1 flora and veg
... The distribution of this species is patchy on the Swan Coastal Plain, with records from Ellenbrook, Yellagonga Regional Park and ...
... The distribution of this species is patchy on the Swan Coastal Plain, with records from Ellenbrook, Yellagonga Regional Park and ...
Fundamentals of Ecology - University of West Florida
... discussion each week. You may ask or answer questions on any other course-related topic during weekly threaded discussions, but the critical thinking questions are designed for you to consider practical applications of the material you learn in each chapter. Participation in threaded discussions is ...
... discussion each week. You may ask or answer questions on any other course-related topic during weekly threaded discussions, but the critical thinking questions are designed for you to consider practical applications of the material you learn in each chapter. Participation in threaded discussions is ...
Confusing Ecology with Environmentalism 1
... The Institute of Food and Agricultural Sciences is an equal opportunity/affirmative action employer authorized to provide research, educational information and other services only to individuals and institutions that function without regard to race, color, sex, age, handicap, or national origin. For ...
... The Institute of Food and Agricultural Sciences is an equal opportunity/affirmative action employer authorized to provide research, educational information and other services only to individuals and institutions that function without regard to race, color, sex, age, handicap, or national origin. For ...
Rare Plants and Rare Plant communities in Alberta Face an
... the loss of many formerly healthy rare limber pine and whitebark pine vegetation communities. The barren bedrock created by intense heat presents an inhospitable environment for plant propagules. Recovery from site degradation in such communities may take decades. The area lying between Highway 11 a ...
... the loss of many formerly healthy rare limber pine and whitebark pine vegetation communities. The barren bedrock created by intense heat presents an inhospitable environment for plant propagules. Recovery from site degradation in such communities may take decades. The area lying between Highway 11 a ...
Relationships between biodiversity and
... (Benton et al., 2003). Donald et al. (2001) showed that bird populations in the UK declined with increases in cereal and milk yields along with fertilizer and tractor usage. Cereal yields alone explained 31% of the variability in declining bird populations, suggesting that intensification of a single ...
... (Benton et al., 2003). Donald et al. (2001) showed that bird populations in the UK declined with increases in cereal and milk yields along with fertilizer and tractor usage. Cereal yields alone explained 31% of the variability in declining bird populations, suggesting that intensification of a single ...
New England Cottontail - Environmental Defense Fund
... edge and less interior habitat are more dangerous locations for New England cottontails. New residential development often brings along domestic cats and dogs, which are known to kill New England cottontails and may be significant predators. Additionally, generalist predators often benefit from huma ...
... edge and less interior habitat are more dangerous locations for New England cottontails. New residential development often brings along domestic cats and dogs, which are known to kill New England cottontails and may be significant predators. Additionally, generalist predators often benefit from huma ...
Organophosphates
... While toxicity testing for human health effects does include both carcinogenesis assays and developmental toxicity assays, only the former can be extrapolated to other species with any degree of reliability -- since we have the necessary theoretical basis for arguing that mechanisms of carcinogenesi ...
... While toxicity testing for human health effects does include both carcinogenesis assays and developmental toxicity assays, only the former can be extrapolated to other species with any degree of reliability -- since we have the necessary theoretical basis for arguing that mechanisms of carcinogenesi ...
pdf
... consuming the vascular cylinder and tissues within stem nodes and thus disrupting the translocation and storage of carbohydrate in plants. Johnson et al. (1998) and Gross et al. (2001) showed that the larvae of Acentria ephemerella (Lepidoptera) causes severe damage to the apical meristems of M. spi ...
... consuming the vascular cylinder and tissues within stem nodes and thus disrupting the translocation and storage of carbohydrate in plants. Johnson et al. (1998) and Gross et al. (2001) showed that the larvae of Acentria ephemerella (Lepidoptera) causes severe damage to the apical meristems of M. spi ...
Population and community
... disease outbreak, or herbivory) or density independent (environmental factors). In density dependent factors, competition (particularly intra-specific i.e. between individuals of same species) plays a major role in limiting population size. Among the density independent factors, floods, fire and oth ...
... disease outbreak, or herbivory) or density independent (environmental factors). In density dependent factors, competition (particularly intra-specific i.e. between individuals of same species) plays a major role in limiting population size. Among the density independent factors, floods, fire and oth ...
Important conservation research topics on terrestrial
... Work is required to determine what rate of re-introduction of new genetic material into artificially established small populations will yield a desirable level of diversity. Deinacrida tibiospina Nelson/Marlborough conservancy (Nelson alpine weta - unofficial name, possibly rare ?) : Confined to are ...
... Work is required to determine what rate of re-introduction of new genetic material into artificially established small populations will yield a desirable level of diversity. Deinacrida tibiospina Nelson/Marlborough conservancy (Nelson alpine weta - unofficial name, possibly rare ?) : Confined to are ...
Resource-driven terrestrial interaction webs
... Food web structure changes dramatically over the geographic range of species. For example, one parasitoid species, Hoplismenus morulus, is distributed over most of the USA (Price 1981). In the northwest, one host herbivore is available which feeds on 10 plant species in six families, all in mesic wo ...
... Food web structure changes dramatically over the geographic range of species. For example, one parasitoid species, Hoplismenus morulus, is distributed over most of the USA (Price 1981). In the northwest, one host herbivore is available which feeds on 10 plant species in six families, all in mesic wo ...
Diversity and Productivity in a Long-Term Grassland Experiment David Tilman,
... about 9 to 13 species and their greater chance of co-occurrence at higher diversity (19), whereas such effects among about four species seem to account for total biomass responses. The demonstration that diversity effects strengthened through time and were not the result solely of sampling effects o ...
... about 9 to 13 species and their greater chance of co-occurrence at higher diversity (19), whereas such effects among about four species seem to account for total biomass responses. The demonstration that diversity effects strengthened through time and were not the result solely of sampling effects o ...
Supporting Information Legends to Fig. S1, Table S1 and
... Table S1 Summary of studies that assess the effects of a range of plant traits that may influence elevation change in mangrove forests. Most studies have focused on species effects on plant traits, root growth, and allocation to roots, with far fewer studies on plant traits that influence the loss o ...
... Table S1 Summary of studies that assess the effects of a range of plant traits that may influence elevation change in mangrove forests. Most studies have focused on species effects on plant traits, root growth, and allocation to roots, with far fewer studies on plant traits that influence the loss o ...
national task force formed to spearhead conservation of primates
... (Cercocebus galeritus), both endemic to the forests of lower Tana River. ...
... (Cercocebus galeritus), both endemic to the forests of lower Tana River. ...
Invasiveness, invasibility and the role of environmental
... native, asks both about the invasiveness of species and the invasibility of habitats: Which species are most likely to become invasive? Which habitats are most susceptible to invasion? To set the stage for considering these questions with regard to plants, we offer a two-way classification of native ...
... native, asks both about the invasiveness of species and the invasibility of habitats: Which species are most likely to become invasive? Which habitats are most susceptible to invasion? To set the stage for considering these questions with regard to plants, we offer a two-way classification of native ...
How deer benefit the environment.
... plant diversity. But, the empirical basis for such presumptions is limited. We, therefore, conducted a survey in western Connecticut,USA, woodlots to examine how spatial variation in deer densities influences variation in impacts on plant species abundance, identity and diversity, and tree regener ...
... plant diversity. But, the empirical basis for such presumptions is limited. We, therefore, conducted a survey in western Connecticut,USA, woodlots to examine how spatial variation in deer densities influences variation in impacts on plant species abundance, identity and diversity, and tree regener ...
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.