3. Existing Authorities and Programs
... The Sound also supports heavy commercial shipping traffic. Some vessels, such as those that transport bananas from Panama in Central America, travel slowly through coastal waters and eventually dock in Bridgeport. Other ships include oil tankers, US Navy submarines, and ???. These vessels may serve ...
... The Sound also supports heavy commercial shipping traffic. Some vessels, such as those that transport bananas from Panama in Central America, travel slowly through coastal waters and eventually dock in Bridgeport. Other ships include oil tankers, US Navy submarines, and ???. These vessels may serve ...
Important Bird Areas in Namibia - Environmental Information Service
... areas, and every species that was identified as threatened in some way is included. The list is not exhaustive but probably captures 90% of the important areas for birds in Namibia. Of the 21 sites, 19 qualify as globally important sites; the remaining two are of sub-regional importance. The sites a ...
... areas, and every species that was identified as threatened in some way is included. The list is not exhaustive but probably captures 90% of the important areas for birds in Namibia. Of the 21 sites, 19 qualify as globally important sites; the remaining two are of sub-regional importance. The sites a ...
Effects of landscape composition, habitat features, and nest
... in a 1400 km2 portion of southeastern New Hampshire were used in our experiment (Fig. 1). Habitat mosaics that surrounded ponds included forests, agricultural fields, and suburban and urban developments. New Hampshire is the second most forested state in the country (ca. 83%; Sundquist and Stevens, ...
... in a 1400 km2 portion of southeastern New Hampshire were used in our experiment (Fig. 1). Habitat mosaics that surrounded ponds included forests, agricultural fields, and suburban and urban developments. New Hampshire is the second most forested state in the country (ca. 83%; Sundquist and Stevens, ...
Oak Savanna Restoration - The Wildlife Society
... burning of grasslands and wooded acres continued up until about the 1940s. At the time of settlement Iowa “forests” were described as a landscape that could be traversed by a horse and rider at full gallop (much different from most upland forests that are found in the Midwest today). Today, remnant ...
... burning of grasslands and wooded acres continued up until about the 1940s. At the time of settlement Iowa “forests” were described as a landscape that could be traversed by a horse and rider at full gallop (much different from most upland forests that are found in the Midwest today). Today, remnant ...
Species coexistence and the superior ability of an invasive species
... Surveys of habitat use and distributional overlap of crabs To quantify whether there was evidence for spillover effects adjacent to cordgrass–mussel beds, we conducted a survey in August 2007 to compare the abundance of adult crabs in low cobble habitats at sites with cordgrass-ribbed mussel beds i ...
... Surveys of habitat use and distributional overlap of crabs To quantify whether there was evidence for spillover effects adjacent to cordgrass–mussel beds, we conducted a survey in August 2007 to compare the abundance of adult crabs in low cobble habitats at sites with cordgrass-ribbed mussel beds i ...
Pitfall Trapping as a Method for Studying Populations of Carabidae
... As pitfall catches vary with the amount of locomotor activity shown by Carabidae they are influenced by weather, and Briggs (1961) and Greenslade (1961) found a correlation between catches and temperature. The problem of the relation between catch, population size and activity is not dealt with here ...
... As pitfall catches vary with the amount of locomotor activity shown by Carabidae they are influenced by weather, and Briggs (1961) and Greenslade (1961) found a correlation between catches and temperature. The problem of the relation between catch, population size and activity is not dealt with here ...
Fine-scale community and genetic structure are tightly linked in
... greater levels of species diversity observed in genetically diverse communities, Whitlock et al. [37] tracked the performance of individual genotypes of six species in these communities directly, using molecular markers. This work revealed that mean genotype abundance in all but one of these species ...
... greater levels of species diversity observed in genetically diverse communities, Whitlock et al. [37] tracked the performance of individual genotypes of six species in these communities directly, using molecular markers. This work revealed that mean genotype abundance in all but one of these species ...
Towards novel approaches to modelling biotic interactions in
... incorporate biotic interactions, and identify some methodological and conceptual limitations. To illustrate possible directions for conceptual advancement we explore three principal ways of modelling multispecies interactions using interaction matrices: simple qualitative linkages between species, q ...
... incorporate biotic interactions, and identify some methodological and conceptual limitations. To illustrate possible directions for conceptual advancement we explore three principal ways of modelling multispecies interactions using interaction matrices: simple qualitative linkages between species, q ...
Consistency of species ranking based on functional leaf traits
... Interannual variation This was examined at Cazarils on the whole set of species except Phillyrea latifolia (an evergreen small tree), which did not produce new leaves at that site in 1999. Harvests were conducted between 19 May and 3 June in 1998 (‘May 98’ hereafter), and between 11 May and 17 June ...
... Interannual variation This was examined at Cazarils on the whole set of species except Phillyrea latifolia (an evergreen small tree), which did not produce new leaves at that site in 1999. Harvests were conducted between 19 May and 3 June in 1998 (‘May 98’ hereafter), and between 11 May and 17 June ...
Does interspecific territoriality reflect the
... However, is this inference – namely, that interspecific territoriality reflects the intensity of ecological interactions – actually correct? Factors other than the intensity of ecological interactions would affect the occurrence of interspecific territoriality. For instance, the decision by territor ...
... However, is this inference – namely, that interspecific territoriality reflects the intensity of ecological interactions – actually correct? Factors other than the intensity of ecological interactions would affect the occurrence of interspecific territoriality. For instance, the decision by territor ...
current status and future challenges
... occurrence of non-native plants is much lower in semi-natural mountain vegetation than along disturbed roadsides, especially at higher elevation and in protected areas (Seipel et al. 2012). Direct evidence from more detailed studies of non-native populations in mountains is scarcer. Although the dis ...
... occurrence of non-native plants is much lower in semi-natural mountain vegetation than along disturbed roadsides, especially at higher elevation and in protected areas (Seipel et al. 2012). Direct evidence from more detailed studies of non-native populations in mountains is scarcer. Although the dis ...
Myall Lakes Ramsar site ecological character description
... www.aph.gov.au/HOUSE/committee/jsct/27february2007/treaties/korea_nia.pdf ...
... www.aph.gov.au/HOUSE/committee/jsct/27february2007/treaties/korea_nia.pdf ...
Eco-evolutionary buffering: rapid evolution facilitates regional
... 2000), with all but one species eventually drifting to regional extinction. In other cases, regionally common species can benefit disproportionately from the local priority effects and regionally rare ...
... 2000), with all but one species eventually drifting to regional extinction. In other cases, regionally common species can benefit disproportionately from the local priority effects and regionally rare ...
Managing Wetland Habitats for Waterbirds: An International
... energy costs of thermoregulation (Rubega and Robinson 1997). Euliss et al. (1989) reported that high salinity water may cause carbonate to precipitate on tail feathers of Ruddy Ducks (Oxyura jamaicensis), which erodes the feathers and interferes with diving and flying. Water salinity also affects th ...
... energy costs of thermoregulation (Rubega and Robinson 1997). Euliss et al. (1989) reported that high salinity water may cause carbonate to precipitate on tail feathers of Ruddy Ducks (Oxyura jamaicensis), which erodes the feathers and interferes with diving and flying. Water salinity also affects th ...
Red Herrings - Greenpeace USA
... (2001). Impacts of trawling disturbance on the trophic structure of benthic invertebrate communities. Marine Ecology Progress Series 213: 127142; Kaiser, M.J. and B.E. Spencer (1996). The effects of beam-trawl disturbance on infaunal communities in different habitats. Journal of Animal Ecology 65: 3 ...
... (2001). Impacts of trawling disturbance on the trophic structure of benthic invertebrate communities. Marine Ecology Progress Series 213: 127142; Kaiser, M.J. and B.E. Spencer (1996). The effects of beam-trawl disturbance on infaunal communities in different habitats. Journal of Animal Ecology 65: 3 ...
Scaling up keystone effects from simple to complex
... complex ecological networks found in natural ecosystems. Especially important is the scaling up of our limited understanding of how and under what conditions loss of ÔkeystoneÕ species causes large declines of many other species. Here we explore how these keystone effects vary among simulations prog ...
... complex ecological networks found in natural ecosystems. Especially important is the scaling up of our limited understanding of how and under what conditions loss of ÔkeystoneÕ species causes large declines of many other species. Here we explore how these keystone effects vary among simulations prog ...
The inability of northern whelks to drill the range extending barnacle
... (2) barnacle shell morphology influences the success of whelk predation. The experiment used 180 plastic containers (1-liter), each of which contained one barnacle (Semibalanus cariosus or Tetraclita rubescens) and one whelk (Nucella ostrina or Nucella canaliculata). The containers were randomly pla ...
... (2) barnacle shell morphology influences the success of whelk predation. The experiment used 180 plastic containers (1-liter), each of which contained one barnacle (Semibalanus cariosus or Tetraclita rubescens) and one whelk (Nucella ostrina or Nucella canaliculata). The containers were randomly pla ...
Restoring Dipterocarp Rainforest Diversity
... regenerated trees (≥10 cm diameter at breast height) were studied over 10 years after selective timber harvesting, using a gradient of harvest intensities (0–16 trees cut ha–1). Results showed that for optimum biodiversity harvest intensities should not exceed 8 trees ha–1; since species richness wa ...
... regenerated trees (≥10 cm diameter at breast height) were studied over 10 years after selective timber harvesting, using a gradient of harvest intensities (0–16 trees cut ha–1). Results showed that for optimum biodiversity harvest intensities should not exceed 8 trees ha–1; since species richness wa ...
Wetland Ecology and conversation in Hong Kong
... 3.Those can prevent desiccation of the land and droughts. 4.wetlands can protect coastal areas form invasion of sea water, they reduce the degree of Stalinization of the soil in coastal area. 5.Wetlands protect seacoasts from erosion and tsunami such as the mangroves and plants grown in tropical 6.s ...
... 3.Those can prevent desiccation of the land and droughts. 4.wetlands can protect coastal areas form invasion of sea water, they reduce the degree of Stalinization of the soil in coastal area. 5.Wetlands protect seacoasts from erosion and tsunami such as the mangroves and plants grown in tropical 6.s ...
FOOD WEBS
... it is a classic—something to be appreciated by those who study history and the origin of ideas—and that the lessons it teaches may yield insights into present science. To those who read this reprint with history in mind I wish only the best. It is not my reason for this reprint’s existence. In the t ...
... it is a classic—something to be appreciated by those who study history and the origin of ideas—and that the lessons it teaches may yield insights into present science. To those who read this reprint with history in mind I wish only the best. It is not my reason for this reprint’s existence. In the t ...
Reprint - Queen`s University Department of Mathematics and Statistics.
... has such an astonishing level of evolutionary diversification taken place throughout Earth’s history (Hutchinson 1959)? Why, for example, does a single hectare of tropical rain forest sometimes contain more than 300 species of trees instead of just a few? Unfortunately (or perhaps fortunately, if yo ...
... has such an astonishing level of evolutionary diversification taken place throughout Earth’s history (Hutchinson 1959)? Why, for example, does a single hectare of tropical rain forest sometimes contain more than 300 species of trees instead of just a few? Unfortunately (or perhaps fortunately, if yo ...
programmatic biological assessment, conference report, and
... of the threatened and endangered, proposed, candidate or sensitive species listed below, and to describe conservation measures that CDOT will take to mitigate those impacts. CDOT has three goals: 1) proactive conservation of declining species in the central Shortgrass Prairie Ecoregion of Colorado; ...
... of the threatened and endangered, proposed, candidate or sensitive species listed below, and to describe conservation measures that CDOT will take to mitigate those impacts. CDOT has three goals: 1) proactive conservation of declining species in the central Shortgrass Prairie Ecoregion of Colorado; ...
Elevated carbon dioxide is predicted to promote model
... University Research Excellence Scholarship. This work was supported by the Australian Research Council (DP1094791), the U.S. Department of Energy (DOE/DE-FG0296ER62291 and DE-FC02-06ER64158), the National Science Foundation (NSF Biocomplexity 0322057, NSF LTER DEB 9411972, 0080382, and 0620652, and ...
... University Research Excellence Scholarship. This work was supported by the Australian Research Council (DP1094791), the U.S. Department of Energy (DOE/DE-FG0296ER62291 and DE-FC02-06ER64158), the National Science Foundation (NSF Biocomplexity 0322057, NSF LTER DEB 9411972, 0080382, and 0620652, and ...
Pathogen Spillover in Disease Epidemics
... It has long been known that wild animals and plants can harbor disease agents that may be detrimental to domestic animals and crops. Pathogen movement between wild and domestic animals presents some particularly important examples of spillover (Daszak et al. 2000). A recent study concluded that 77% ...
... It has long been known that wild animals and plants can harbor disease agents that may be detrimental to domestic animals and crops. Pathogen movement between wild and domestic animals presents some particularly important examples of spillover (Daszak et al. 2000). A recent study concluded that 77% ...
Key Native Ecosystem Plan for Te Horo Forest Remnants
... spp.) are the biggest threats to forest birds and other native fauna whilst, possums (Trichosurus vulpecula) adversely impact native flora by over-browsing on native vegetation. The fragmented and modified nature of the forest remnants means they are at greater risk from the impacts of edge effects. ...
... spp.) are the biggest threats to forest birds and other native fauna whilst, possums (Trichosurus vulpecula) adversely impact native flora by over-browsing on native vegetation. The fragmented and modified nature of the forest remnants means they are at greater risk from the impacts of edge effects. ...
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.