Herbicides and Amphibian Populations
... were collected and sent to the lab for testing. Chemical analysis of the water was collected at these sites to determine herbicide levels. The results from the lab studies indicated that 12 percent of the males treated with .1 and 25 ppb Atrazine® suffered from gonadal dygenesis, underdeveloped tes ...
... were collected and sent to the lab for testing. Chemical analysis of the water was collected at these sites to determine herbicide levels. The results from the lab studies indicated that 12 percent of the males treated with .1 and 25 ppb Atrazine® suffered from gonadal dygenesis, underdeveloped tes ...
Khappinghat Nature Reserve and Saltwater National Park Draft Plan
... declared an Aboriginal Place on 18 April 1986 under section 84 of the NPW Act. The Saltwater Aboriginal Place was dedicated in recognition of its on-going significance to the Aboriginal community being a seasonal campsite with associated sacred and significant sites, including natural landscape feat ...
... declared an Aboriginal Place on 18 April 1986 under section 84 of the NPW Act. The Saltwater Aboriginal Place was dedicated in recognition of its on-going significance to the Aboriginal community being a seasonal campsite with associated sacred and significant sites, including natural landscape feat ...
Phenotypic Plasticity - Department of Ecology and Evolutionary
... maternal effect, and some evidence for selection acting on maternal effects from a field experiment (Agrawal 2001a). Many of the traits induced by herbivores have been shown to reduce herbivory, but these studies do not document the adaptive value of plasticity in these traits. For plasticity to be ...
... maternal effect, and some evidence for selection acting on maternal effects from a field experiment (Agrawal 2001a). Many of the traits induced by herbivores have been shown to reduce herbivory, but these studies do not document the adaptive value of plasticity in these traits. For plasticity to be ...
Maternal adjustment of offspring provisioning and the consequences
... populations that is often manifested as environmentally induced maternal effects. Environmental maternal effects can be beneficial if they influence population dynamic functions of seeds in a way that increases fitness, such as escaping from crowding. Using the winter annual plant, Dithyrea californica ...
... populations that is often manifested as environmentally induced maternal effects. Environmental maternal effects can be beneficial if they influence population dynamic functions of seeds in a way that increases fitness, such as escaping from crowding. Using the winter annual plant, Dithyrea californica ...
Managing the high ecological Value aquatic ecosysteMs
... vital habitat for a range of fish and other native species. Permanent waterholes such as Cullyamurra Waterhole, near Innamincka township, are particularly important as refuges for fauna in times of drought, providing the only habitat to sustain aquatic species through extended dry periods. ...
... vital habitat for a range of fish and other native species. Permanent waterholes such as Cullyamurra Waterhole, near Innamincka township, are particularly important as refuges for fauna in times of drought, providing the only habitat to sustain aquatic species through extended dry periods. ...
Tegenaria duellica and Tegenaria agrestis
... ecosystems are unknown. Either can be very abundant on the undersurface of coarse woody debris, rocks and other objects on the ground, with their webs almost completely covering these areas. They likely displace native spiders, beetles, centipedes, millipedes and other species that normally would oc ...
... ecosystems are unknown. Either can be very abundant on the undersurface of coarse woody debris, rocks and other objects on the ground, with their webs almost completely covering these areas. They likely displace native spiders, beetles, centipedes, millipedes and other species that normally would oc ...
Habitat and dietary specificity in aphidophagous ladybirds
... It has been suggested that switching between different prey might in itself impose a cost and that specialists trade-off a lowered fecundity consequent on remaining with resources for longer with a cost to generalists of regularly changing prey species (Sloggett & Majerus 2000a). It is known from co ...
... It has been suggested that switching between different prey might in itself impose a cost and that specialists trade-off a lowered fecundity consequent on remaining with resources for longer with a cost to generalists of regularly changing prey species (Sloggett & Majerus 2000a). It is known from co ...
abstracts layout - Carnivore Conservation
... The agricultural landscape has been simplified during the last decades. Non-cropped habitats (field islands, ditches, natural pastures, etc.) are scarcer than before and species have less feeding and nesting sites. Islands among the crops are the farmsteads. Biologists examining biodiversity in the ...
... The agricultural landscape has been simplified during the last decades. Non-cropped habitats (field islands, ditches, natural pastures, etc.) are scarcer than before and species have less feeding and nesting sites. Islands among the crops are the farmsteads. Biologists examining biodiversity in the ...
2015_Celaya_et_al_Cuphea_HPollen_Ann Bot
... the mean number of pollen grains per anther in each species (Arceo-Gómez and Ashman, 2011) for a 50/50 conspecific–HP mix, as in previous studies on HP effects (reviewed in Morales and Traveset, 2008). Pollen grains per anther were counted using a particle counter (Beckman Coulter Z Series). Mean 6 ...
... the mean number of pollen grains per anther in each species (Arceo-Gómez and Ashman, 2011) for a 50/50 conspecific–HP mix, as in previous studies on HP effects (reviewed in Morales and Traveset, 2008). Pollen grains per anther were counted using a particle counter (Beckman Coulter Z Series). Mean 6 ...
Organism Size, Life History, and N:P Stoichiometry
... study questions about ecosystems that are unsuited for analysis with energy-based models. Elemental stoichiometry considers relative proportions (ratios) of key elements in organisms in analyzing how characteristics and activities of organisms influence, and are in turn influenced by, the ecosystem ...
... study questions about ecosystems that are unsuited for analysis with energy-based models. Elemental stoichiometry considers relative proportions (ratios) of key elements in organisms in analyzing how characteristics and activities of organisms influence, and are in turn influenced by, the ecosystem ...
The place of the steppe marmot in steppe ecosystems of Ukraine: an
... on the left bank of the Severski Donets River. The steppes on the left bank of the Donets were hilly and richly intersected by rivers and gullies. The gullies could not be ploughed and they became the only potential habitats for the marmot. At the beginning of the XX century the steppe marmot inhabi ...
... on the left bank of the Severski Donets River. The steppes on the left bank of the Donets were hilly and richly intersected by rivers and gullies. The gullies could not be ploughed and they became the only potential habitats for the marmot. At the beginning of the XX century the steppe marmot inhabi ...
habitat and nesting success of blue jays
... Smith 1995). For example, at a coarse-grained level based on community composition (here defined as ‘‘macrohabitat’’), the abundance or distribution of food or predator species may be greatly influenced by characteristics such as abiotic factors, relative abundance of prey species, community structu ...
... Smith 1995). For example, at a coarse-grained level based on community composition (here defined as ‘‘macrohabitat’’), the abundance or distribution of food or predator species may be greatly influenced by characteristics such as abiotic factors, relative abundance of prey species, community structu ...
![[FSH] 1909.12 - USDA Forest Service](http://s1.studyres.com/store/data/019722113_1-42a2cbdd7b7e77719b75dd249f8d7e0b-300x300.png)
[FSH] 1909.12 - USDA Forest Service
... 1. Identify and assess a solid base of available information relevant to the plan development or plan revision, by: a. Identifying available, relevant information by reviewing a range of sources and information provided by the public and other governmental entities, including potential information s ...
... 1. Identify and assess a solid base of available information relevant to the plan development or plan revision, by: a. Identifying available, relevant information by reviewing a range of sources and information provided by the public and other governmental entities, including potential information s ...
NEST SITE SELECTION AND INFLUENCE OF WOODPECKERS
... are particularly important in terms of conservation and management because the loss of these species from a community can have catastrophic effects on those organisms that rely upon them to drive ecosystem processes (Estes and Palmisano, 1974). Focusing conservation efforts on keystone species prese ...
... are particularly important in terms of conservation and management because the loss of these species from a community can have catastrophic effects on those organisms that rely upon them to drive ecosystem processes (Estes and Palmisano, 1974). Focusing conservation efforts on keystone species prese ...
ECOHAB Preface The Ecology and Oceanography of Harmful Algal Blooms
... shellfish or fish, death of marine mammals, seabirds, and other animals, and alteration of marine habitats or trophic structure through shading, overgrowth, or adverse effects on life history stages of fish and other marine organisms. Formerly only a few regions were affected by harmful algal blooms ...
... shellfish or fish, death of marine mammals, seabirds, and other animals, and alteration of marine habitats or trophic structure through shading, overgrowth, or adverse effects on life history stages of fish and other marine organisms. Formerly only a few regions were affected by harmful algal blooms ...
Root–root interactions: extending our perspective
... 2006), because these resources are usually found at an optimum during specific time periods and at specific locations. According to ecological theory, strong competition could lead to so-called ‘competitive exclusion under limiting similarity’ from a community of plants, i.e. species are more likely ...
... 2006), because these resources are usually found at an optimum during specific time periods and at specific locations. According to ecological theory, strong competition could lead to so-called ‘competitive exclusion under limiting similarity’ from a community of plants, i.e. species are more likely ...
The plateau pika (Ochotona curzoniae) is a keystone species for
... Jiang & Xia (1985, 1987) determined that the foraging of small and moderate populations of plateau pikas is selective and may play an important role in the stabilization of the alpine meadow vegetational community. Studies on the similar Daurian pika have shown that their digging activity loosens an ...
... Jiang & Xia (1985, 1987) determined that the foraging of small and moderate populations of plateau pikas is selective and may play an important role in the stabilization of the alpine meadow vegetational community. Studies on the similar Daurian pika have shown that their digging activity loosens an ...
complaint - Earthjustice
... analyzing this incident concluded that acoustic trauma could not be ruled out as a cause of death. The report also concluded that harbor porpoises throughout the area were exposed to levels of sound much greater than those known to strongly disrupt their behavior, and that the number of porpoise str ...
... analyzing this incident concluded that acoustic trauma could not be ruled out as a cause of death. The report also concluded that harbor porpoises throughout the area were exposed to levels of sound much greater than those known to strongly disrupt their behavior, and that the number of porpoise str ...
Key Role of European Rabbits in the Conservation of the Western
... Because most of the studies we reviewed were conducted in recent decades, after the rabbit decline began on the Iberian Peninsula, we focused primarily on qualitative rather than quantitative aspects of their role in the ecosystem. Nevertheless, it is likely that their effects on the ecosystem were ...
... Because most of the studies we reviewed were conducted in recent decades, after the rabbit decline began on the Iberian Peninsula, we focused primarily on qualitative rather than quantitative aspects of their role in the ecosystem. Nevertheless, it is likely that their effects on the ecosystem were ...
Martu Living Deserts Project - The Nature Conservancy Australia
... lands also hold immense cultural significance – extensive rock art and significant Jukurrpa (dreaming) stories. Having lived on this country for at least 5,000 years, the Martu people have an immense depth of traditional knowledge. Their management of country is central to the ongoing survival of th ...
... lands also hold immense cultural significance – extensive rock art and significant Jukurrpa (dreaming) stories. Having lived on this country for at least 5,000 years, the Martu people have an immense depth of traditional knowledge. Their management of country is central to the ongoing survival of th ...
Biodiversity Guide Farmers and Certifiers - WFA - NOFA-NY
... a good farm must be one where the wild fauna and flora have lost acreage without losing their existence.”—Aldo Leopold ...
... a good farm must be one where the wild fauna and flora have lost acreage without losing their existence.”—Aldo Leopold ...
Waterfowl Habitat Conservation Strategy
... response, identifying conservation opportunities, and developing an initial landscape design with capacity expected to sustain current waterfowl populations and eliminate population deficits. Much of the technical information, including habitat models and decision support maps, appears in breeding f ...
... response, identifying conservation opportunities, and developing an initial landscape design with capacity expected to sustain current waterfowl populations and eliminate population deficits. Much of the technical information, including habitat models and decision support maps, appears in breeding f ...
Crab burrows and termite thermal chimneys as
... In the Nearctic region, a study on the use of crayfish burrows by the ranid Lithobates areolatus showed that frog survival was favoured by the effective use of these burrows, located in grasslands up to 1 km distant from reproduction sites (Heemeyer et al. 2012). Crawfish Frogs tended to occupy prim ...
... In the Nearctic region, a study on the use of crayfish burrows by the ranid Lithobates areolatus showed that frog survival was favoured by the effective use of these burrows, located in grasslands up to 1 km distant from reproduction sites (Heemeyer et al. 2012). Crawfish Frogs tended to occupy prim ...
The Effects of Stream Habitat Modification on the Life
... concern. Physical stream habitat disturbance can cause long-term and severe impacts on stream biodiversity (e.g. Gregory et al, 1991). “Stream habitat”is defined as the whole stream environment including the streambed, banks and land use in the immediate vicinity of the stream (riparian zone). It in ...
... concern. Physical stream habitat disturbance can cause long-term and severe impacts on stream biodiversity (e.g. Gregory et al, 1991). “Stream habitat”is defined as the whole stream environment including the streambed, banks and land use in the immediate vicinity of the stream (riparian zone). It in ...
The impacts of elephants on biodiversity in the Eastern
... The management of elephants, Loxodonta africana, in conservation areas has faced policy- and decision-makers with burgeoning populations1 and the loss of biodiversity,2,3 giving rise to the so-called ‘elephant problem’.4 Elephant management is particularly challenging given the high costs and strong ...
... The management of elephants, Loxodonta africana, in conservation areas has faced policy- and decision-makers with burgeoning populations1 and the loss of biodiversity,2,3 giving rise to the so-called ‘elephant problem’.4 Elephant management is particularly challenging given the high costs and strong ...
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.