Hunting-induced defaunation drives increased seed predation and
... Hunting may affect the strength of seed predation for many plant species, though our understanding of this process is limited, especially in Central Africa. There is some evidence that vertebrate seed and seedling predation are strong determinants of tree recruitment in the region (Clark et al., 201 ...
... Hunting may affect the strength of seed predation for many plant species, though our understanding of this process is limited, especially in Central Africa. There is some evidence that vertebrate seed and seedling predation are strong determinants of tree recruitment in the region (Clark et al., 201 ...
Spatiotemporal variations in aphidparasitoid relative abundance
... consistently a more frequent species among parasitized aphids than among living aphids, indicating that this aphid species was exploited at a higher rate than the other two aphid species found (Sitobion avenae F and Rhopalosiphum padi L). Those findings suggest the cereal aphid-parasitoid network is ...
... consistently a more frequent species among parasitized aphids than among living aphids, indicating that this aphid species was exploited at a higher rate than the other two aphid species found (Sitobion avenae F and Rhopalosiphum padi L). Those findings suggest the cereal aphid-parasitoid network is ...
EFFECTS OF TROPICAL FOREST FRAGMENTATION ON
... Thamnophilis atrinucha, an antshrike, declined or the species disappeared entirely in fragments with decreasing patch size, isolation from a source, and low surrounding forest cover values. R. sulfuratus abundance was not significantly associated with any of the predictor variables. However, 4 of 6, ...
... Thamnophilis atrinucha, an antshrike, declined or the species disappeared entirely in fragments with decreasing patch size, isolation from a source, and low surrounding forest cover values. R. sulfuratus abundance was not significantly associated with any of the predictor variables. However, 4 of 6, ...
Captive Propagation of the Threatened Eastern
... Wildlife Research Unit at Auburn University; this program continued through 1987. The purpose of the program was to supplement existing populations in the Southeast that were low in eastern indigo snake numbers or restock areas that experienced extirpation. Adult snakes used for captive breeding wer ...
... Wildlife Research Unit at Auburn University; this program continued through 1987. The purpose of the program was to supplement existing populations in the Southeast that were low in eastern indigo snake numbers or restock areas that experienced extirpation. Adult snakes used for captive breeding wer ...
Course Correlation to Virginia Standards of Learning Name of
... • describe worldwide efforts to prevent extinctions. • describe several ways and programs that are used to save species. • explain the advantages of protecting entire ecosystems rather than individual species. define biodiversity. • explain how humans are causing extinctions of species. • define ext ...
... • describe worldwide efforts to prevent extinctions. • describe several ways and programs that are used to save species. • explain the advantages of protecting entire ecosystems rather than individual species. define biodiversity. • explain how humans are causing extinctions of species. • define ext ...
Are planthopper problems caused by a breakdown in ecosystem
... supporting, and cultural functions (Fig. 2). First proposed by Daily (1997), the ES concept has gained considerable following and “ecological engineering” has emerged as a new direction for agricultural pest management (Gurr et al 2004). Provisioning services include production of food, fresh water, ...
... supporting, and cultural functions (Fig. 2). First proposed by Daily (1997), the ES concept has gained considerable following and “ecological engineering” has emerged as a new direction for agricultural pest management (Gurr et al 2004). Provisioning services include production of food, fresh water, ...
The white clawed crayfish
... habitat and watercourses may become unsuitable for crayfish through erosion of soil within the catchment, which reduces water quality and clogs streams. ...
... habitat and watercourses may become unsuitable for crayfish through erosion of soil within the catchment, which reduces water quality and clogs streams. ...
A literature review of urban effects on lowland heaths and their wildlife
... Studies across a range of bird species have shown that effects from human disturbance can be both indirect and complex. Effects can include restriction of nest site choice, reduced breeding success, changes in population breeding density and composition of breeding communities, and lower foraging ra ...
... Studies across a range of bird species have shown that effects from human disturbance can be both indirect and complex. Effects can include restriction of nest site choice, reduced breeding success, changes in population breeding density and composition of breeding communities, and lower foraging ra ...
Selection of a marker gene to construct a reference library
... and psbK-psbI. The selection was performed via analysis of representative sequences from NCBI and comparison of amplification efficiency and resolution power of plant samples collected from the wintering area. The trnL gene was chosen at last with c/h primers, and a local plant reference library was ...
... and psbK-psbI. The selection was performed via analysis of representative sequences from NCBI and comparison of amplification efficiency and resolution power of plant samples collected from the wintering area. The trnL gene was chosen at last with c/h primers, and a local plant reference library was ...
American Alligator Fact Sheet
... “Alligators are fascinating creatures and should by all means be enjoyed as part of the natural beauty of our region. But please remember that they are wild animals and should be respected as such. Once they become too familiar with people, they lose their fear of humans, necessitating their removal ...
... “Alligators are fascinating creatures and should by all means be enjoyed as part of the natural beauty of our region. But please remember that they are wild animals and should be respected as such. Once they become too familiar with people, they lose their fear of humans, necessitating their removal ...
Wetland Ecology - 2 - Forestry Information Center
... agricultural production has been primary factor resulting in loss of wetlands in many regions – remaining wetlands are impacted by a number of agricultural practices that result in elevated sedimentation rates, drift of agricultural chemicals into wetlands, large inputs of nutrients, unnatural varia ...
... agricultural production has been primary factor resulting in loss of wetlands in many regions – remaining wetlands are impacted by a number of agricultural practices that result in elevated sedimentation rates, drift of agricultural chemicals into wetlands, large inputs of nutrients, unnatural varia ...
CBD Fourth National Report
... full length of Belize's coastline. Seven sites along Belize’s Barrier Reef System have been declared a World Heritage Site, in recognition of its extremely rich biodiversity and consequent global importance. “The country is unique, not only in the total number of species present, but also in the vas ...
... full length of Belize's coastline. Seven sites along Belize’s Barrier Reef System have been declared a World Heritage Site, in recognition of its extremely rich biodiversity and consequent global importance. “The country is unique, not only in the total number of species present, but also in the vas ...
Saltcedar Integrated Weed Management and the Endangered
... of providing structural diversity and shade where often none exists, or where native species also exist and provide diversity and shade, saltcedar is actually not very structurally diverse. Although it can reach heights of up to 25 ft., the limbs are often weakened by wind or water leading to dimini ...
... of providing structural diversity and shade where often none exists, or where native species also exist and provide diversity and shade, saltcedar is actually not very structurally diverse. Although it can reach heights of up to 25 ft., the limbs are often weakened by wind or water leading to dimini ...
Wattle I plant for wildlife? - Department of Parks and Wildlife
... another disturbance stirs them into growth once more. Some species, however, are much longer lived. As an integral part of the vegetation community, wattles provide several ecosystem services, including effects on various stages in the water cycle. The roots of most species host nitrogen-fixing orga ...
... another disturbance stirs them into growth once more. Some species, however, are much longer lived. As an integral part of the vegetation community, wattles provide several ecosystem services, including effects on various stages in the water cycle. The roots of most species host nitrogen-fixing orga ...
Invasive Earthworms
... It is the worms very ability to turn around organic matter so quickly that is both its best and worst quality. For agricultural purposes, quick turn around is an asset, but in natural ecosystems this is not a benefit. Many ecosystems have formed around organic matter that has built up over the year ...
... It is the worms very ability to turn around organic matter so quickly that is both its best and worst quality. For agricultural purposes, quick turn around is an asset, but in natural ecosystems this is not a benefit. Many ecosystems have formed around organic matter that has built up over the year ...
Impact Assessment of Invasive Plant Species in Selected
... areas. Inadequate human resources in the VDC have led to agriculture and grasslands less nurtured and unattended, inducing rampant spread. Current livelihood pattern amplified introduction of non-native species because of more interest in off-farm activities, new species and varieties, and less inte ...
... areas. Inadequate human resources in the VDC have led to agriculture and grasslands less nurtured and unattended, inducing rampant spread. Current livelihood pattern amplified introduction of non-native species because of more interest in off-farm activities, new species and varieties, and less inte ...
Ecosystem Consequences of Biological Invasions
... connect organisms with each other as well as with the environment. Ecosystem structures in terrestrial and aquatic ecosystems have many similarities, but also some notable differences. In terrestrial ecosystems, the plant-soil system involves a complex network of interactions and feedbacks (Ehrenfel ...
... connect organisms with each other as well as with the environment. Ecosystem structures in terrestrial and aquatic ecosystems have many similarities, but also some notable differences. In terrestrial ecosystems, the plant-soil system involves a complex network of interactions and feedbacks (Ehrenfel ...
American Alligator (Fact Sheet)
... “Alligators are fascinating creatures and should by all means be enjoyed as part of the natural beauty of our region. But please remember that they are wild animals and should be respected as such. Once they become too familiar with people, they lose their fear of humans, necessitating their removal ...
... “Alligators are fascinating creatures and should by all means be enjoyed as part of the natural beauty of our region. But please remember that they are wild animals and should be respected as such. Once they become too familiar with people, they lose their fear of humans, necessitating their removal ...
Terry Hughes, Australian Research Council Centre of Excellence for
... more exposed to oceanic conditions than today, and the area of shallow water habitat was a small fraction of its current extent. Sea level rose rapidly from 14,000 years before the present, stabilizing at close to its current level 6,000 years ago. In the broadest parts of Queensland’s continental s ...
... more exposed to oceanic conditions than today, and the area of shallow water habitat was a small fraction of its current extent. Sea level rose rapidly from 14,000 years before the present, stabilizing at close to its current level 6,000 years ago. In the broadest parts of Queensland’s continental s ...
CBNERR Research Bibliography
... components that are sensitive to changes in biological and physical driving factors. Static and dynamic modeling frameworks provide an integrative way to study complex hydrodynamic and biogeochemical processes in linked estuarine habitats. In this study we describe a spatial simulation model develop ...
... components that are sensitive to changes in biological and physical driving factors. Static and dynamic modeling frameworks provide an integrative way to study complex hydrodynamic and biogeochemical processes in linked estuarine habitats. In this study we describe a spatial simulation model develop ...
Species richness and evenness respond in a
... evenness, or how relative abundance or biomass is distributed among species (Huston 1994; Purvis and Hector 2000; Magurran 2004). These components are combined in diversity indices (e.g., Shannon’s H¢ and Simpson’s diversity). Evenness indices standardize abundance and range from near 0 when most in ...
... evenness, or how relative abundance or biomass is distributed among species (Huston 1994; Purvis and Hector 2000; Magurran 2004). These components are combined in diversity indices (e.g., Shannon’s H¢ and Simpson’s diversity). Evenness indices standardize abundance and range from near 0 when most in ...
Taking species abundance distributions beyond
... SADs and predictions for this type of abundance distribution are available for a variety of models. Numerical abundance is commonly used in community ecology as a measure of the local dominance or success of a species (Preston 1962). The use of numerical abundance also has a precedence in population ...
... SADs and predictions for this type of abundance distribution are available for a variety of models. Numerical abundance is commonly used in community ecology as a measure of the local dominance or success of a species (Preston 1962). The use of numerical abundance also has a precedence in population ...
11 - Amboseli Baboon Research Project
... lation, and thus with virtually observe changes change, one can sometimes in behavior and social organization that can be related to ecological factors. Such studies on a single have the population of minimizing the effects of advantage and thus suggesting the genetic differences extent to which int ...
... lation, and thus with virtually observe changes change, one can sometimes in behavior and social organization that can be related to ecological factors. Such studies on a single have the population of minimizing the effects of advantage and thus suggesting the genetic differences extent to which int ...
PSHE - Sky Rainforest Rescue
... of different species which rely on the forest are also put in danger by its destruction. Many have already become extinct. © ZIG KOCH / WWF-UK ...
... of different species which rely on the forest are also put in danger by its destruction. Many have already become extinct. © ZIG KOCH / WWF-UK ...
Edwards et al - Feral mammals in Australias rangelands
... and variation in the density of other species. For example, in the rangelands, the potential for land degradation through overgrazing is likely to be heightened during drought. Drought would shift the impact curve from C to A in Fig. 1. The cost of controlling large herbivores is also likely to be c ...
... and variation in the density of other species. For example, in the rangelands, the potential for land degradation through overgrazing is likely to be heightened during drought. Drought would shift the impact curve from C to A in Fig. 1. The cost of controlling large herbivores is also likely to be c ...
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.