spatial variation in molluscan assemblages from coralline turfs of
... 1983). Similarly, sediment and organic material trapped by algal turfs increase habitat heterogeneity, providing opportunity for infaunal molluscs as well as frond-dwelling species (Gibbons, 1988). The fronds themselves and their associated epiphytes (attached algae) may also provide a nutritional s ...
... 1983). Similarly, sediment and organic material trapped by algal turfs increase habitat heterogeneity, providing opportunity for infaunal molluscs as well as frond-dwelling species (Gibbons, 1988). The fronds themselves and their associated epiphytes (attached algae) may also provide a nutritional s ...
Salt marsh harvest mouse abundance and site use in a managed
... & Zolan, 1976). Roads, levees, urban development, and non-native vegetation have replaced upland edges and transition zones, negatively affecting animals that rely on these areas for high-tide refuge. Hadaway and Newman (1971) found that SMHM were trapped on levees in higher numbers when the marsh w ...
... & Zolan, 1976). Roads, levees, urban development, and non-native vegetation have replaced upland edges and transition zones, negatively affecting animals that rely on these areas for high-tide refuge. Hadaway and Newman (1971) found that SMHM were trapped on levees in higher numbers when the marsh w ...
Habitat use and movements of plains zebra
... coupling of predator–prey population movements suggests that zebras can respond to specific threats by leaving areas after detecting predators. But zebras cannot always rely on detecting lions and moving away from them because lions are highly mobile and stealthy. Therefore, in addition to respondin ...
... coupling of predator–prey population movements suggests that zebras can respond to specific threats by leaving areas after detecting predators. But zebras cannot always rely on detecting lions and moving away from them because lions are highly mobile and stealthy. Therefore, in addition to respondin ...
Petition to list the Giant Palouse Earthworm
... On a personal level, you should be proud to promote this particular petition to list the Giant Palouse Earthworm, Driloleirus americanus, onto the Endangered Species list. This species was once common and is now rare in the land that you and I know well, and treasure, the Palouse Prairie of northern ...
... On a personal level, you should be proud to promote this particular petition to list the Giant Palouse Earthworm, Driloleirus americanus, onto the Endangered Species list. This species was once common and is now rare in the land that you and I know well, and treasure, the Palouse Prairie of northern ...
Density and Gorgonian Host-occupation Patterns by Flamingo
... gastropod Cyphoma gibbosum L. was conducted at 63 shallow (< 7 m), low-relief hard-bottom and spur and groove sites in the Florida Keys. Mean densities of C. gibbosum were not significantly different between habitat types, among geographic regions, or between fished and protected areas. Based on sam ...
... gastropod Cyphoma gibbosum L. was conducted at 63 shallow (< 7 m), low-relief hard-bottom and spur and groove sites in the Florida Keys. Mean densities of C. gibbosum were not significantly different between habitat types, among geographic regions, or between fished and protected areas. Based on sam ...
File - Links Biology Website
... Define: Introduced Species or exotic species Define: Species Diversity Define: Habitat fragmentation Define: Captive Breeding Define: Biological Magnification Define: Habitat Preservation Define: Conservation Biology Describe the factors that affect population density. Identify when a population is ...
... Define: Introduced Species or exotic species Define: Species Diversity Define: Habitat fragmentation Define: Captive Breeding Define: Biological Magnification Define: Habitat Preservation Define: Conservation Biology Describe the factors that affect population density. Identify when a population is ...
Nevada Wildlife Action Plan - Nevada Department of Wildlife
... tree forest and tall and short blackbrush communities which are typically found between the desert scrub and the woodland zones on mountain ranges within or near the Mojave Ecoregion. Many birds, small mammals, and reptiles depend on Mojave Desert Scrub vegetation for shade and sustenance. Key prior ...
... tree forest and tall and short blackbrush communities which are typically found between the desert scrub and the woodland zones on mountain ranges within or near the Mojave Ecoregion. Many birds, small mammals, and reptiles depend on Mojave Desert Scrub vegetation for shade and sustenance. Key prior ...
aquatic and terrestrial habitat selection by - ETH E
... amphibians, and most probably facilitates temporal co-existence of species with complex life cycles at local spatial scales. Conservation implications. The present work has implications for the conservation of amphibians in both aquatic and terrestrial habitats. We found that niche-differentiation i ...
... amphibians, and most probably facilitates temporal co-existence of species with complex life cycles at local spatial scales. Conservation implications. The present work has implications for the conservation of amphibians in both aquatic and terrestrial habitats. We found that niche-differentiation i ...
The role of metapopulations in conservation
... introduced for the metapopulation is 370---960 km2 . All reserves are enclosed with electrical fences, to protect the wild dogs and to minimize conflict with livestock farmers. Fences act as important barriers to the movements of the dogs, so that there is little emigration and even less immigration ...
... introduced for the metapopulation is 370---960 km2 . All reserves are enclosed with electrical fences, to protect the wild dogs and to minimize conflict with livestock farmers. Fences act as important barriers to the movements of the dogs, so that there is little emigration and even less immigration ...
Passerine Relationships with Habitat Heterogeneity and Grazing at Multiple Scales
... Limited information exists on the relationships among grazing, scale, and patterns of heterogeneity in grassland communities and few studies have explored how grazing and habitat heterogeneity together influence grassland bird communities. I used mixed models to analyze the influence of cattle grazi ...
... Limited information exists on the relationships among grazing, scale, and patterns of heterogeneity in grassland communities and few studies have explored how grazing and habitat heterogeneity together influence grassland bird communities. I used mixed models to analyze the influence of cattle grazi ...
temporospatial distributions of elk, mule deer, and cattle: resource
... SD) from 1989 to 1995. Recruitment rate on our study area indicated that the population was increasing; however, this increase was well below the maximum finite rate of growth (l 5 1.46) reported for elk (Kimball and Wolfe 1974). Thus, some resources may have been in short supply, and competition am ...
... SD) from 1989 to 1995. Recruitment rate on our study area indicated that the population was increasing; however, this increase was well below the maximum finite rate of growth (l 5 1.46) reported for elk (Kimball and Wolfe 1974). Thus, some resources may have been in short supply, and competition am ...
4.10 - City of Chowchilla
... isolated patches of historical vernal pool habitat may occur within the Planning Area. However, the majority of the land in and around the City of Chowchilla has been converted to agricultural land uses, eliminating any naturally occurring biotic habitats. Possible. It is possible that small, isolat ...
... isolated patches of historical vernal pool habitat may occur within the Planning Area. However, the majority of the land in and around the City of Chowchilla has been converted to agricultural land uses, eliminating any naturally occurring biotic habitats. Possible. It is possible that small, isolat ...
Still Creek Watershed Biodiversity Conservation Case
... A patch size analysis was conducted on the habitat coverage to identify areas of contiguous habitat. In other words, to map portions of the landscape that have not been fragmented by human disturbance (i.e., roads, urban development). Areas of contiguous (unfragmented) habitat identified through the ...
... A patch size analysis was conducted on the habitat coverage to identify areas of contiguous habitat. In other words, to map portions of the landscape that have not been fragmented by human disturbance (i.e., roads, urban development). Areas of contiguous (unfragmented) habitat identified through the ...
Flammulated Owl (Otus flammeolus)
... The Flammulated Owl is a relatively long-lived, slow-breeding species that shows a distinct need for older forests. The main limiting factor is its preference for structurally complex forests that have a mosaic of large, old trees, dead snags with cavities suitable for nesting, and small patches of ...
... The Flammulated Owl is a relatively long-lived, slow-breeding species that shows a distinct need for older forests. The main limiting factor is its preference for structurally complex forests that have a mosaic of large, old trees, dead snags with cavities suitable for nesting, and small patches of ...
LISTED SPECIES Sacramento Winter-Run Chinook Salmon
... An "abundance index" is used to estimate a proportion of the population because sampling an entire population is nearly impossible and a mark-recapture study using delta smelt cannot be done because the fish is too fragile. An index is dimensionless (i.e., it has no unit of measurement). By systemat ...
... An "abundance index" is used to estimate a proportion of the population because sampling an entire population is nearly impossible and a mark-recapture study using delta smelt cannot be done because the fish is too fragile. An index is dimensionless (i.e., it has no unit of measurement). By systemat ...
Ontario Moose Resource Report for WMU 01A
... Moose management considers the best available knowledge, including scientific, local and Aboriginal traditional knowledge, as well as social, cultural and economic values. It also respects Aboriginal peoples’ unique perspectives and practices related to moose management, including the exercise of co ...
... Moose management considers the best available knowledge, including scientific, local and Aboriginal traditional knowledge, as well as social, cultural and economic values. It also respects Aboriginal peoples’ unique perspectives and practices related to moose management, including the exercise of co ...
Fragmentation in the Boreal Forest and Possible Effects on
... This report reviews evidence related to the effects of fragmentation in boreal Canada and attempts to identify specific aspects of fragmentation that may be of concern in managed boreal forests. The objectives of this document are ...
... This report reviews evidence related to the effects of fragmentation in boreal Canada and attempts to identify specific aspects of fragmentation that may be of concern in managed boreal forests. The objectives of this document are ...
The effects of landscape fragmentation on
... Animal-mediated pollination is essential for both ecosystem services and conservation of global biodiversity, but a growing body of work reveals that it is negatively affected by anthropogenic disturbance. Landscape-scale disturbance results in two often inter-related processes: (1) habitat loss, (2 ...
... Animal-mediated pollination is essential for both ecosystem services and conservation of global biodiversity, but a growing body of work reveals that it is negatively affected by anthropogenic disturbance. Landscape-scale disturbance results in two often inter-related processes: (1) habitat loss, (2 ...
1 BAP Intro 2 AW.fh11
... naming them was a waste of time. That just shows how daft I was. The naming and cataloguing of all the variety of wildlife we have in Barnsley is a vital part of the Biodiversity Action Plan. We have to know how many of which species there are around so that we can see if they’re in decline or if th ...
... naming them was a waste of time. That just shows how daft I was. The naming and cataloguing of all the variety of wildlife we have in Barnsley is a vital part of the Biodiversity Action Plan. We have to know how many of which species there are around so that we can see if they’re in decline or if th ...
Southern Brown Bandicoot Management Plan
... High frequency fire resulting in disruption of life cycle processes in plants and animals and loss of vegetation structure and composition; Clearing of native vegetation; and Infection of native plants by Phytophthora cinnamomi. ...
... High frequency fire resulting in disruption of life cycle processes in plants and animals and loss of vegetation structure and composition; Clearing of native vegetation; and Infection of native plants by Phytophthora cinnamomi. ...
BIODIVERSITY AND CONSERVATION
... SEED BANKS PRESERVE GENETIC LINEAGES OF CULTIVATED PLANTS http://www.nytimes.com/slideshow/2008/02/28/world/200802 28VAULT_10.html ...
... SEED BANKS PRESERVE GENETIC LINEAGES OF CULTIVATED PLANTS http://www.nytimes.com/slideshow/2008/02/28/world/200802 28VAULT_10.html ...
Management of Marsh-Upland Transitional Habitats
... tidal marsh ecosystem (Baye 2004). The result is that much of what was originally a healthy transition has been converted to the Artificial Dikes typology (Baye, 2012), which consists of steeply sloped levees. These artificial dikes have greatly diminished ecological functions. Artificial dikes and ...
... tidal marsh ecosystem (Baye 2004). The result is that much of what was originally a healthy transition has been converted to the Artificial Dikes typology (Baye, 2012), which consists of steeply sloped levees. These artificial dikes have greatly diminished ecological functions. Artificial dikes and ...
Investigation of Behavioral Change in Amphibians as a
... distribution when the road is found within one kilometer of amphibian habitat (Cosentino 2014). Anthropogenic noise also leads to an increase in male frogs’ vocalization frequency when anthropogenic disturbance occurs in their habitat, which is energetically taxing for the frogs and can negatively a ...
... distribution when the road is found within one kilometer of amphibian habitat (Cosentino 2014). Anthropogenic noise also leads to an increase in male frogs’ vocalization frequency when anthropogenic disturbance occurs in their habitat, which is energetically taxing for the frogs and can negatively a ...
American Marten Conservation Strategy for the Huron
... that leaves the remaining forest in varying sizes and degrees of isolation (Harris 1984), is a major concern in ecosystem management and biodiversity. The ever increasing human population and corresponding development pressures (expanding residential areas, golf courses, roads, etc.) are the major ...
... that leaves the remaining forest in varying sizes and degrees of isolation (Harris 1984), is a major concern in ecosystem management and biodiversity. The ever increasing human population and corresponding development pressures (expanding residential areas, golf courses, roads, etc.) are the major ...
Reading Biodiversity Action Plan
... Reading, like so much of Berkshire and the South East of England in general, continues to experience considerable pressure for development of land within urban uses, in line with government policy to protect the wider countryside. Existing habitats, which have evolved on remnants of land that have n ...
... Reading, like so much of Berkshire and the South East of England in general, continues to experience considerable pressure for development of land within urban uses, in line with government policy to protect the wider countryside. Existing habitats, which have evolved on remnants of land that have n ...
Habitat destruction
Habitat destruction is the process in which natural habitat is rendered functionally unable to support the species present. In this process, the organisms that previously used the site are displaced or destroyed, reducing biodiversity. Habitat destruction by human activity is mainly for the purpose of harvesting natural resources for industry production and urbanization. Clearing habitats for agriculture is the principal cause of habitat destruction. Other important causes of habitat destruction include mining, logging, trawling and urban sprawl. Habitat destruction is currently ranked as the primary cause of species extinction worldwide. It is a process of natural environmental change that may be caused by habitat fragmentation, geological processes, climate change or by human activities such as the introduction of invasive species, ecosystem nutrient depletion, and other human activities mentioned below.The terms habitat loss and habitat reduction are also used in a wider sense, including loss of habitat from other factors, such as water and noise pollution.