Durham Hedgerow Survey 2006 - Durham Biodiversity Partnership
... However, as agricultural has become more intensive, the agricultural values of hedgerows are diminishing. Hedgerow management is no longer a priority, even to livestock farmers as it is not only labour intensive but an unwanted financial burden. Without the financial assistance through agri-environm ...
... However, as agricultural has become more intensive, the agricultural values of hedgerows are diminishing. Hedgerow management is no longer a priority, even to livestock farmers as it is not only labour intensive but an unwanted financial burden. Without the financial assistance through agri-environm ...
Georges Bank EPU - Maine Fishermen`s Forum
... recreational fishermen, and other interests Evaluate the effect of management rules and how they adapt to new conditions Performance measured against how well the management rules and process meet the balance of goals ...
... recreational fishermen, and other interests Evaluate the effect of management rules and how they adapt to new conditions Performance measured against how well the management rules and process meet the balance of goals ...
The mangrove swamp
... Mangroves are tree and shrub species that are adapted to grow in the tidally inundated, salty foreshore area of coasts. Mangroves have several special adaptations for their environment, including special roots, salt excreting glands in their leaves, and special seeds to colonise mud flats. Their roo ...
... Mangroves are tree and shrub species that are adapted to grow in the tidally inundated, salty foreshore area of coasts. Mangroves have several special adaptations for their environment, including special roots, salt excreting glands in their leaves, and special seeds to colonise mud flats. Their roo ...
Manifesto * Declaration of Principles for Wolf Conservation By the
... and, in particular, of those characteristics which have made many of them desirable game animals. 3. It is recognized that wolf populations have differentiated into entities which are genetically adapted to particular environments. It is of first importance that these local populations be maintained ...
... and, in particular, of those characteristics which have made many of them desirable game animals. 3. It is recognized that wolf populations have differentiated into entities which are genetically adapted to particular environments. It is of first importance that these local populations be maintained ...
Species, concepts of. In Levin, S.A.
... such as populations, subspecies, or species, are not so easily identifiable. Taxonomists further group species into genera, families, orders, and kingdoms, while ecologists group species into higher structures such as communities and ecosystems. The justification for these group terms is utility, ra ...
... such as populations, subspecies, or species, are not so easily identifiable. Taxonomists further group species into genera, families, orders, and kingdoms, while ecologists group species into higher structures such as communities and ecosystems. The justification for these group terms is utility, ra ...
752-4740-1-SP - Oecologia Australis
... spatial clustering. According to it, ecologically dominant species have an aggregated spatial distribution, which would increase competition among individuals and the species’ coexistence with subordinate species. Beyond these two, there are the trade-off and the mosaic theories, which involve compe ...
... spatial clustering. According to it, ecologically dominant species have an aggregated spatial distribution, which would increase competition among individuals and the species’ coexistence with subordinate species. Beyond these two, there are the trade-off and the mosaic theories, which involve compe ...
Ecological Society of America - Wentworth Group of Concerned
... the Gelman-Rubin statistic for 15 species selected at random from the total of 269 species (Zuur et al. 2002). Finding that in all cases convergence was achieved within 1000 iterations, a conservative 5000 samples were used as a standard burn-in and traces of the MCMC chains were checked for all spe ...
... the Gelman-Rubin statistic for 15 species selected at random from the total of 269 species (Zuur et al. 2002). Finding that in all cases convergence was achieved within 1000 iterations, a conservative 5000 samples were used as a standard burn-in and traces of the MCMC chains were checked for all spe ...
Bee diversity effects on pollination depend on functional
... crisis of crops and wild plants. However, experimental evidence for effects of pollinator species diversity on plant reproduction is extremely scarce. We established communities with 1–5 bee species to test how seed production of a plant community is determined by bee diversity. Higher bee diversity ...
... crisis of crops and wild plants. However, experimental evidence for effects of pollinator species diversity on plant reproduction is extremely scarce. We established communities with 1–5 bee species to test how seed production of a plant community is determined by bee diversity. Higher bee diversity ...
Macroecology: more than the division of food and
... ignoring localized and fine-scaled details, macroecology aims to uncover general mechanisms operating at organism, population and ecosystem levels of organization. Although such an approach is evident in writings dating from the mid- to late 1800s, not until 1989 was the domain of macroecology clear ...
... ignoring localized and fine-scaled details, macroecology aims to uncover general mechanisms operating at organism, population and ecosystem levels of organization. Although such an approach is evident in writings dating from the mid- to late 1800s, not until 1989 was the domain of macroecology clear ...
Invasive Species: A Biodiversity Challenge!
... cope. (Ontario Biodiversity Strategy, 2005) Biodiversity is the variety of life on Earth, from microbes to mammals: everything is interconnected. This diversity is essential for life as we know it, providing ecological, economic, social, cultural and intrinsic value. Rapid changes caused by human ac ...
... cope. (Ontario Biodiversity Strategy, 2005) Biodiversity is the variety of life on Earth, from microbes to mammals: everything is interconnected. This diversity is essential for life as we know it, providing ecological, economic, social, cultural and intrinsic value. Rapid changes caused by human ac ...
Competition hierarchy, transitivity and additivity: investigating the
... Understanding which features competitionorganised communities have is essential to predicting their potential for coexistence (Keddy and Shipley 1989). For example Roxburgh and Wilson (2000) showed with data from an experimental lawn community, that transitivity makes communities in mathematical mod ...
... Understanding which features competitionorganised communities have is essential to predicting their potential for coexistence (Keddy and Shipley 1989). For example Roxburgh and Wilson (2000) showed with data from an experimental lawn community, that transitivity makes communities in mathematical mod ...
TOWNSHIP OF CARLING – PASSED NOVEMBER 2012 KEEPING
... in the world and are a vibrant, diverse ecosystem that is critically important to the economic well-being and the quality of life of the Canadian and U.S. populations in the region; WHEREAS, over 180 invasive species have entered the Great Lakes and its connecting water ways over the years and cause ...
... in the world and are a vibrant, diverse ecosystem that is critically important to the economic well-being and the quality of life of the Canadian and U.S. populations in the region; WHEREAS, over 180 invasive species have entered the Great Lakes and its connecting water ways over the years and cause ...
Leaf-Cutting Ant Herbivory in Successional and Agricultural
... Developing nations, particularly those with limited fossil fuel resources, face difficultdecisions in selecting appropriate agricultural ecosystems to keep pace with food and fiber needs of their rapidly expanding pop? ulations. Monocultures are notorious for pest outbreaks (Gibson and Jones 1977), ...
... Developing nations, particularly those with limited fossil fuel resources, face difficultdecisions in selecting appropriate agricultural ecosystems to keep pace with food and fiber needs of their rapidly expanding pop? ulations. Monocultures are notorious for pest outbreaks (Gibson and Jones 1977), ...
Factors Influencing Biodiversity and Distributional Gradients in
... There are twenty-eight genera in total (Table 1), seventeen are exclusively mangrove. There are thirteen polyspecific mangrove genera comprising up to eight species in some, not counting putative hybrids. This relatively low genetic diversity may reflect difficult conditions found in intertidal envi ...
... There are twenty-eight genera in total (Table 1), seventeen are exclusively mangrove. There are thirteen polyspecific mangrove genera comprising up to eight species in some, not counting putative hybrids. This relatively low genetic diversity may reflect difficult conditions found in intertidal envi ...
American Marten - High Branch Conservation Services
... neighboring landowners can help accomplish shared conservation objectives. State biologists and foresters may be available to support coordination by providing technical knowledge or assistance in the development of easements, memoranda of understanding, and other tools for cooperative wildlife mana ...
... neighboring landowners can help accomplish shared conservation objectives. State biologists and foresters may be available to support coordination by providing technical knowledge or assistance in the development of easements, memoranda of understanding, and other tools for cooperative wildlife mana ...
pdf reprint
... decades. Some of these experiments, such as the Biological Dynamics of Forest Fragments Project in Brazil (Laurance et al. 2011), have been operating for many years, while others still are just initiating (e.g. The Stability of Altered Forest Ecosystems in Borneo (Ewers et al. 2011) and the Thousand ...
... decades. Some of these experiments, such as the Biological Dynamics of Forest Fragments Project in Brazil (Laurance et al. 2011), have been operating for many years, while others still are just initiating (e.g. The Stability of Altered Forest Ecosystems in Borneo (Ewers et al. 2011) and the Thousand ...
pptx
... Species “able to persist indefinitely together are deemed to ‘coexist’…” “If some mechanism promotes the coexistence of two or more species, each species must be able to increase when it is rare and the others are at their typical abundances; this invasibility criterion is fundamental evidence for s ...
... Species “able to persist indefinitely together are deemed to ‘coexist’…” “If some mechanism promotes the coexistence of two or more species, each species must be able to increase when it is rare and the others are at their typical abundances; this invasibility criterion is fundamental evidence for s ...
Evaluating MPA effectiveness
... MPA effects vs effectiveness There is a growing body of research that demonstrates that MPA’s have an effect on resident assemblages of organisms (e.g., Edgar and Barrett 1997, 1999, Babcock et al. 1999, Garcia Charton et al. 2000, Planes et al. 2000, Jamieson and Levings 2001). However fewer author ...
... MPA effects vs effectiveness There is a growing body of research that demonstrates that MPA’s have an effect on resident assemblages of organisms (e.g., Edgar and Barrett 1997, 1999, Babcock et al. 1999, Garcia Charton et al. 2000, Planes et al. 2000, Jamieson and Levings 2001). However fewer author ...
Observations On Environmental Change in South Africa
... the possibility of a ‘coffee table book’ showing ‘before and after’ images of environmental changes in South Africa with Johan Pauw, who saw the relevance and necessity for such a book and its value for promoting the work of the South African Environmental Observation Network (SAEON), especially amo ...
... the possibility of a ‘coffee table book’ showing ‘before and after’ images of environmental changes in South Africa with Johan Pauw, who saw the relevance and necessity for such a book and its value for promoting the work of the South African Environmental Observation Network (SAEON), especially amo ...
Biological Resources Assessment of the Proposed
... Edge habitats are found along the perimeter of the project site. They occur as linear habitats along roadsides or field borders, or as trees and shrubs around rural residences or farmyards. Because the majority of the project site is agricultural land, edge habitats are generally areas of higher wil ...
... Edge habitats are found along the perimeter of the project site. They occur as linear habitats along roadsides or field borders, or as trees and shrubs around rural residences or farmyards. Because the majority of the project site is agricultural land, edge habitats are generally areas of higher wil ...
ESDay2013MediaSample.. - Endangered Species Coalition
... celebrated on May 17, 2013, with special events and other programs throughout the country to recognize conservation efforts underway across the nation aimed at helping America’s imperiled species. This year also commemorates the 40th Anniversary of the Endangered Species Act. “America is doing an am ...
... celebrated on May 17, 2013, with special events and other programs throughout the country to recognize conservation efforts underway across the nation aimed at helping America’s imperiled species. This year also commemorates the 40th Anniversary of the Endangered Species Act. “America is doing an am ...
and Belowground Biodiversity in Terrestrial Ecosystems
... Disturbance regime to soil organisms Changes in engineering activities of plants can have a dramatic effect on the disturbance regime to soil organisms, i.e., by altering the fire regime, by triggering biological invasions, or by altering structural features of the soil habitat. Here we confine the ...
... Disturbance regime to soil organisms Changes in engineering activities of plants can have a dramatic effect on the disturbance regime to soil organisms, i.e., by altering the fire regime, by triggering biological invasions, or by altering structural features of the soil habitat. Here we confine the ...
SHIFTING PARADIGMS OF THE EVOLUTION OF CAVE LIFE
... rather the components connected to mating and fecundity. Predictions can be made about the direction of natural selection in both cave and spring populations. Large size should be selected for in caves perhaps because of the increased range of available food and the absence of predator; small size s ...
... rather the components connected to mating and fecundity. Predictions can be made about the direction of natural selection in both cave and spring populations. Large size should be selected for in caves perhaps because of the increased range of available food and the absence of predator; small size s ...
Biodiversity action plan
This article is about a conservation biology topic. For other uses of BAP, see BAP (disambiguation).A biodiversity action plan (BAP) is an internationally recognized program addressing threatened species and habitats and is designed to protect and restore biological systems. The original impetus for these plans derives from the 1992 Convention on Biological Diversity (CBD). As of 2009, 191 countries have ratified the CBD, but only a fraction of these have developed substantive BAP documents.The principal elements of a BAP typically include: (a) preparing inventories of biological information for selected species or habitats; (b) assessing the conservation status of species within specified ecosystems; (c) creation of targets for conservation and restoration; and (d) establishing budgets, timelines and institutional partnerships for implementing the BAP.