Bap Twite - Peak District National Park
... There is no national action plan for twite in the UK. The RSPB, however, has published an internal Species Action Plan for twite. Its objectives are: To maintain the breeding numbers and distribution (based on the 1999 survey) of twite in the UK. In the long term, to recover the distribution of twit ...
... There is no national action plan for twite in the UK. The RSPB, however, has published an internal Species Action Plan for twite. Its objectives are: To maintain the breeding numbers and distribution (based on the 1999 survey) of twite in the UK. In the long term, to recover the distribution of twit ...
Final report on Effects of environment on
... requires supporting science in order to assess whether these effects are sustainable. The project ‘Can demersal fishing cause long-term changes in benthic community structure’ was commissioned to provide the scientific basis for assessing the impacts of demersal fishing disturbance on the marine env ...
... requires supporting science in order to assess whether these effects are sustainable. The project ‘Can demersal fishing cause long-term changes in benthic community structure’ was commissioned to provide the scientific basis for assessing the impacts of demersal fishing disturbance on the marine env ...
Desiccation of Rock Pool Habitats and Its Influence on Population
... effects of climate change on migration [26]. The high instability of rock pools due to desiccation is a peculiar characteristic of this habitat, as already pointed out by Ranta [16]. But even though the desiccation of rock pools is a typical and common phenomenon [14,21], desiccation has rarely been ...
... effects of climate change on migration [26]. The high instability of rock pools due to desiccation is a peculiar characteristic of this habitat, as already pointed out by Ranta [16]. But even though the desiccation of rock pools is a typical and common phenomenon [14,21], desiccation has rarely been ...
Human impacts on how savanna plants interact through fire, resources,... A Dissertation SUBMITTED TO THE FACULTY OF
... of Bews Herbarium at UKZN, Richard Boon, David Styles, Rob Scott-Shaw, and Debbie Jewitt. I could trace such influences more inclusively, or further back in time, but I must stop somewhere; I thank my parents for getting me into nature and all my other teachers, academic and personal. ...
... of Bews Herbarium at UKZN, Richard Boon, David Styles, Rob Scott-Shaw, and Debbie Jewitt. I could trace such influences more inclusively, or further back in time, but I must stop somewhere; I thank my parents for getting me into nature and all my other teachers, academic and personal. ...
pdf
... remove whole flowers by chewing the pedicels. When feeding on developing fruits, larvae eat the soft, unripe seeds through a hole bitten through the follicle wall, whereas mice remove whole fruits. Foliage herbivory by either vertebrates or invertebrates on H. foetidus plants was virtually nonexiste ...
... remove whole flowers by chewing the pedicels. When feeding on developing fruits, larvae eat the soft, unripe seeds through a hole bitten through the follicle wall, whereas mice remove whole fruits. Foliage herbivory by either vertebrates or invertebrates on H. foetidus plants was virtually nonexiste ...
Recovery strategy for the American Badger
... northwestern Ontario over the next 20 years. To accomplish this, several recovery objectives must be met: 1. Fill knowledge gaps on American Badger ecology, behaviour, distribution, movement, dispersal, population dynamics, mortality factors and habitat use in the species’ Ontario range. 2. Increase ...
... northwestern Ontario over the next 20 years. To accomplish this, several recovery objectives must be met: 1. Fill knowledge gaps on American Badger ecology, behaviour, distribution, movement, dispersal, population dynamics, mortality factors and habitat use in the species’ Ontario range. 2. Increase ...
information - Society For Range Management
... Applications of remote sensing technology to assess landscape structure of pygmy rabbit habitat selection at multiple scales Virginia Harris*, Eva K. Strand, Janet L. Rachlow ...
... Applications of remote sensing technology to assess landscape structure of pygmy rabbit habitat selection at multiple scales Virginia Harris*, Eva K. Strand, Janet L. Rachlow ...
Submerged Aquatic Vegetation
... SAV commonly grows in beds. These beds can be dense or sparse and contain one species or many. Generally, species diversity increases as the salinity decreases. For example, while only two species (eelgrass and widgeon grass) grow in Long Island Sound’s polyhaline waters, 17 species are found in the ...
... SAV commonly grows in beds. These beds can be dense or sparse and contain one species or many. Generally, species diversity increases as the salinity decreases. For example, while only two species (eelgrass and widgeon grass) grow in Long Island Sound’s polyhaline waters, 17 species are found in the ...
The Marine Ecozones of Canada
... past plant species, climatic regimes or physiographic features. The focus was ecosystems--distinctive areas where organisms (including humans) and the physical environment (i.e. soils, water, climate,) cohere as a system. ...
... past plant species, climatic regimes or physiographic features. The focus was ecosystems--distinctive areas where organisms (including humans) and the physical environment (i.e. soils, water, climate,) cohere as a system. ...
Weed Ecology in Natural and Agricultural Systems
... • Weeds are classified based on their impact on human activities. Therefore, the effect of a weed is difficult to quantify because it depends on our personal biases. • Definitions and classifications in ecology are often arbitrary and made for purely practical reasons. They do not necessarily reflec ...
... • Weeds are classified based on their impact on human activities. Therefore, the effect of a weed is difficult to quantify because it depends on our personal biases. • Definitions and classifications in ecology are often arbitrary and made for purely practical reasons. They do not necessarily reflec ...
Bison as Keystone Herbivores on the Great Plains
... areas, becoming important economically, for both food and labor. There are currently over 250 recognized breeds of cattle and potentially hundreds more that are not recognized. There are as many as 80 breeds available for production in the United States. Each breed has distinctive characteristics th ...
... areas, becoming important economically, for both food and labor. There are currently over 250 recognized breeds of cattle and potentially hundreds more that are not recognized. There are as many as 80 breeds available for production in the United States. Each breed has distinctive characteristics th ...
Coastal Plain - Audubon North Carolina
... hardwood forest and supports coastal plain rarities such as Mississippi Kite and Cerulean Warbler, along with other swamp forest birds such as Prothonotary Warbler, Northern Parula, and Wood Duck. The still, black waters of Merchants Millpond State Park studded with bald cypress trees is a prime exa ...
... hardwood forest and supports coastal plain rarities such as Mississippi Kite and Cerulean Warbler, along with other swamp forest birds such as Prothonotary Warbler, Northern Parula, and Wood Duck. The still, black waters of Merchants Millpond State Park studded with bald cypress trees is a prime exa ...
Regional recovery plan for threatened species and ecological
... AMLR. Some species have wider distributions within the AMLR, but their populations are considered to be declining. Many others have small population sizes and/or a limited number of sub-populations. Many species are considered disjunct from the remainder of their ranges, or are part of a limited dis ...
... AMLR. Some species have wider distributions within the AMLR, but their populations are considered to be declining. Many others have small population sizes and/or a limited number of sub-populations. Many species are considered disjunct from the remainder of their ranges, or are part of a limited dis ...
Effects of twice-over rotation grazing on the relative abundances of... in the mixed-grass prairie region of southwestern Manitoba
... Appendix I - Average species richness and abundance of grassland birds observed in southwestern Manitoba in 2008, separated by treatment. Average relative abundances and standard deviations are shown for the ten grassland birds used for analysis. ..... 132 Appendix II - Average species richness and ...
... Appendix I - Average species richness and abundance of grassland birds observed in southwestern Manitoba in 2008, separated by treatment. Average relative abundances and standard deviations are shown for the ten grassland birds used for analysis. ..... 132 Appendix II - Average species richness and ...
Top predators, mesopredators and their prey: interference
... Furthermore, the strength of top predator control of mesopredators may increase with ecosystem productivity (Elmhagen & Rushton 2007). We suggest this could result in ‘interference ecosystems’ where interference divides the predators into two functional groups, top predators and mesopredators. A sec ...
... Furthermore, the strength of top predator control of mesopredators may increase with ecosystem productivity (Elmhagen & Rushton 2007). We suggest this could result in ‘interference ecosystems’ where interference divides the predators into two functional groups, top predators and mesopredators. A sec ...
Section 3.2. Marine Vegetation and Invertebrates
... Sargassum; and green, red, and brown algae (Table 3.2–1). Marine vegetation in the vicinity of the north and south LWI project sites includes primarily eelgrass, green and red algae, and kelp (a type of brown algae that includes Saccharina sp.). Most forms of macroalgae were documented in the shallo ...
... Sargassum; and green, red, and brown algae (Table 3.2–1). Marine vegetation in the vicinity of the north and south LWI project sites includes primarily eelgrass, green and red algae, and kelp (a type of brown algae that includes Saccharina sp.). Most forms of macroalgae were documented in the shallo ...
IMC 10 - SAREM
... threat because core areas of unhunted forest are shrinking, particularly as a result of industrial logging and expansion of transportation infrastructure. Climate change has emerged as a potentially serious threat for tropical mammals, especially for cool-adapted endemic species at higher elevations ...
... threat because core areas of unhunted forest are shrinking, particularly as a result of industrial logging and expansion of transportation infrastructure. Climate change has emerged as a potentially serious threat for tropical mammals, especially for cool-adapted endemic species at higher elevations ...
The costs of chronic noise exposure for terrestrial organisms
... Masking is a significant problem for the perception of adventitious sounds, such as footfalls and other byproducts of motion. These sounds are not intentionally produced and natural selection will typically favor individuals that minimize their production. The prevalence and characteristics of adven ...
... Masking is a significant problem for the perception of adventitious sounds, such as footfalls and other byproducts of motion. These sounds are not intentionally produced and natural selection will typically favor individuals that minimize their production. The prevalence and characteristics of adven ...
21 Gopher Tortoise Habitat - Wildlife Ecology and Conservation
... tortoises (Auffenberg and Franz, 1982). However, some types of clearing and thinning activities may be beneficial to tortoises. Some studies have shown that tortoises can dig out following land clearing and site preparation (Landers and Buckner, 1981). ...
... tortoises (Auffenberg and Franz, 1982). However, some types of clearing and thinning activities may be beneficial to tortoises. Some studies have shown that tortoises can dig out following land clearing and site preparation (Landers and Buckner, 1981). ...
Action Plan - Environment and Natural Resources
... management challenge involves the impacts of oil and gas development, along with other land use activities such as forestry, tourism and mining, and all of their interactions (or cumulative effects of all the impacts). Endangered species – A species facing imminent extirpation or extinction. Extinct ...
... management challenge involves the impacts of oil and gas development, along with other land use activities such as forestry, tourism and mining, and all of their interactions (or cumulative effects of all the impacts). Endangered species – A species facing imminent extirpation or extinction. Extinct ...
Invasive Alien Plants and their Management in Africa
... THE introduction of species to new environments outside of their natural home ranges carries significant risks. Invasive alien species are major drivers of biodiversity loss. As such, their continuing spread is undermining the ecological, social and economic well-being of entire regions. They can al ...
... THE introduction of species to new environments outside of their natural home ranges carries significant risks. Invasive alien species are major drivers of biodiversity loss. As such, their continuing spread is undermining the ecological, social and economic well-being of entire regions. They can al ...
Ben-Gurion University of the Negev
... open to expand into desert habitats. To reduce the competitive load that Kuhl’s pipistrelle has on desert dwelling species, I proposed and tested a management tool to reduce the ability of Kuhl’s pipistrelle to drink from open bodies of water. I predicted that, by installing obstructions above the w ...
... open to expand into desert habitats. To reduce the competitive load that Kuhl’s pipistrelle has on desert dwelling species, I proposed and tested a management tool to reduce the ability of Kuhl’s pipistrelle to drink from open bodies of water. I predicted that, by installing obstructions above the w ...
Report to SAZ - Durham University Community
... competition, quality of mast crops and protection from poaching all influence the studied populations. Dynamics of the red deer and sika deer populations are currently best understood. There is evidence for competition between these species and, also, for climate effects acting in different directio ...
... competition, quality of mast crops and protection from poaching all influence the studied populations. Dynamics of the red deer and sika deer populations are currently best understood. There is evidence for competition between these species and, also, for climate effects acting in different directio ...
Natural Organic Chemicals on Development
... invertebrates is the water fleas of the genus Daphnia. These animals are often the dominant herbivores in lakes and ponds. They play a key role in determining water clarity (by grazing on algae) and they are an important part of the diet of fish. Natural chemical signals (kairomones) produced by pre ...
... invertebrates is the water fleas of the genus Daphnia. These animals are often the dominant herbivores in lakes and ponds. They play a key role in determining water clarity (by grazing on algae) and they are an important part of the diet of fish. Natural chemical signals (kairomones) produced by pre ...
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.