Qualitative Insight Into Public Knowledge of, and
... As for threats to the region’s biodiversity, the population of the Intermountain West continues to experience tremendous growth. Utah, in particular, has one of fastest growing populations in the nation. Since 1990, the number of Utahns increased by nearly 30% increasing from 1.7 million in 1990 to ...
... As for threats to the region’s biodiversity, the population of the Intermountain West continues to experience tremendous growth. Utah, in particular, has one of fastest growing populations in the nation. Since 1990, the number of Utahns increased by nearly 30% increasing from 1.7 million in 1990 to ...
Lecture - Amphibians
... Females prefer / bats prefer “Whine” Females / bats less preference “Whine – cluck” only observed when large choruses present ...
... Females prefer / bats prefer “Whine” Females / bats less preference “Whine – cluck” only observed when large choruses present ...
RCD_letter - Yolo County Resource Conservation District
... In 1937, as a result of the national "Dust Bowl" crisis, (when millions of acres of farmland were destroyed due to drought and erosion) the federal government passed legislation that established the Soil Conservation Service (SCS). To increase the ability to respond to specific local needs, the stat ...
... In 1937, as a result of the national "Dust Bowl" crisis, (when millions of acres of farmland were destroyed due to drought and erosion) the federal government passed legislation that established the Soil Conservation Service (SCS). To increase the ability to respond to specific local needs, the stat ...
Journal of Arid Environments
... plants by AM symbiosis, a diverse community of AMF is necessary for the development and maintenance of plant diversity (van der Heijden et al., 1998). Assessment of the native species composition is an important issue as AMF play important roles in the vigour of plant communities and the restoration ...
... plants by AM symbiosis, a diverse community of AMF is necessary for the development and maintenance of plant diversity (van der Heijden et al., 1998). Assessment of the native species composition is an important issue as AMF play important roles in the vigour of plant communities and the restoration ...
The impacts of invasive plant species on the biodiversity of
... Australia wide, and in the rangelands in particular, some invasive species have a demonstrated capacity to drastically alter plant species composition and the structure of native vegetation. Many of the more prominent rangeland weeds reach very high densities and biomass. For example, Tomley (1998) ...
... Australia wide, and in the rangelands in particular, some invasive species have a demonstrated capacity to drastically alter plant species composition and the structure of native vegetation. Many of the more prominent rangeland weeds reach very high densities and biomass. For example, Tomley (1998) ...
Heterospecific attraction among forest birds: a review
... migrants fit in the breeding assemblages in high numbers only where resident populations are regulated to a low level (see also Morse 1989). Resident birds are usually considered superior competitors over migrants and this interspecific competition would keep migrant numbers low in areas and habitat ...
... migrants fit in the breeding assemblages in high numbers only where resident populations are regulated to a low level (see also Morse 1989). Resident birds are usually considered superior competitors over migrants and this interspecific competition would keep migrant numbers low in areas and habitat ...
The density of trees ‡1 cm dbh and ‡10 cm dbh differed significantly
... Protected areas are an essential tool for conservation, but because only a small fraction of lands can be set aside as reserves, it is essential to maintain biodiversity in areas subject to economic activities (Lindenmayer and Franklin 2002, Fischer et al. 2006). In particular, well managed forests ...
... Protected areas are an essential tool for conservation, but because only a small fraction of lands can be set aside as reserves, it is essential to maintain biodiversity in areas subject to economic activities (Lindenmayer and Franklin 2002, Fischer et al. 2006). In particular, well managed forests ...
Species Redundancy and Ecosystem Reliability
... compartments, can be defined for most ecosystems. Autotrophs and decomposers are common to most ecosystems and represent core biotic compartments (Harte & Kinzig 1993). Pools of organic nutrients (e.g., dead organic matter) and inorganic nutrients are also common to most ecosystems and represent cor ...
... compartments, can be defined for most ecosystems. Autotrophs and decomposers are common to most ecosystems and represent core biotic compartments (Harte & Kinzig 1993). Pools of organic nutrients (e.g., dead organic matter) and inorganic nutrients are also common to most ecosystems and represent cor ...
Environmental heterogeneity, species diversity and
... Lundholm (2009) distinguishes different spatial scale parameters: extent (size of total area within which samples are located); grain (scale at which heterogeneity is measured, i.e. the patch size, generally deemed the average spatial distance between neighbouring environmental measurements); and fo ...
... Lundholm (2009) distinguishes different spatial scale parameters: extent (size of total area within which samples are located); grain (scale at which heterogeneity is measured, i.e. the patch size, generally deemed the average spatial distance between neighbouring environmental measurements); and fo ...
Ecosystems
... written words examples of populations, communities, and ecosystems including those within the Great Lakes region. 2. A population is a group of organisms of the same species living in a particular area at a particular time and can include plant or animal examples. 3. A community consists of populati ...
... written words examples of populations, communities, and ecosystems including those within the Great Lakes region. 2. A population is a group of organisms of the same species living in a particular area at a particular time and can include plant or animal examples. 3. A community consists of populati ...
oceanic islands: models of diversity
... endemism on remote islands also reflects the role of evolution within these islands, which may compensate for low levels of immigration with numerous species arising through adaptive radiation. TABLE I Approximate levels of endemism (%) for different groups of native organisms on three of the better ...
... endemism on remote islands also reflects the role of evolution within these islands, which may compensate for low levels of immigration with numerous species arising through adaptive radiation. TABLE I Approximate levels of endemism (%) for different groups of native organisms on three of the better ...
Similarities and Differences between Harvesting- and
... control burns and different levels of retention indicate that these practices may attenuate some of the differences observed early after disturbance. Our review indicates that as compared to wildfire alone, salvage logging can have significant effects on ecological processes, biological legacies and ...
... control burns and different levels of retention indicate that these practices may attenuate some of the differences observed early after disturbance. Our review indicates that as compared to wildfire alone, salvage logging can have significant effects on ecological processes, biological legacies and ...
Ecological Inventory Manual - Legacy | The Landscape Connection
... “In perhaps the first demonstration that The Wildlands Project concept (of core wilderness areas connected by a web of corridors) is more than pie in the sky here in California, in early October the San Francisco based Save-the-Redwoods League purchased critical pieces of a wildlife corridor between ...
... “In perhaps the first demonstration that The Wildlands Project concept (of core wilderness areas connected by a web of corridors) is more than pie in the sky here in California, in early October the San Francisco based Save-the-Redwoods League purchased critical pieces of a wildlife corridor between ...
The Ecological Niche in Aquatic Ecosystems
... would have little application to nature. It became increasingly clear as the study of competition progressed that different species, even if similar, do not occupy the same niche because they have different suites of adaptations; that environmental conditions change constantly, thus reversing compet ...
... would have little application to nature. It became increasingly clear as the study of competition progressed that different species, even if similar, do not occupy the same niche because they have different suites of adaptations; that environmental conditions change constantly, thus reversing compet ...
oregon`s groundfish fisheries and investigations in 2008
... species observed (30%; n = 149), followed closely by black rockfish (28%; n = 138), and both species were primarily observed in bedrock and large boulder habitat. Canary rockfish were observed infrequently (n = 23), and most if not all of these fish appeared to be less than 36 cm in total length (de ...
... species observed (30%; n = 149), followed closely by black rockfish (28%; n = 138), and both species were primarily observed in bedrock and large boulder habitat. Canary rockfish were observed infrequently (n = 23), and most if not all of these fish appeared to be less than 36 cm in total length (de ...
Bellevue Urban Wildlife Habitat Literature Review
... intensification of land use, has a profound and lasting effect on the natural environment and wildlife habitat (McKinney 2002, Blair 2004, Marzluff 2005, Munns 2006), is a major cause of native species local extinctions (Czech et al. 2000), and is likely to become the primary cause of extinctions in ...
... intensification of land use, has a profound and lasting effect on the natural environment and wildlife habitat (McKinney 2002, Blair 2004, Marzluff 2005, Munns 2006), is a major cause of native species local extinctions (Czech et al. 2000), and is likely to become the primary cause of extinctions in ...
Resistance to wildfire and early regeneration in natural broadleaved
... Natural forest Forest plantation Resilience Resistance ...
... Natural forest Forest plantation Resilience Resistance ...
Alpine plant biodiversity. Part 2: Functions and threats
... extinction because of climate warming, loss of specialised habitats (e.g. snow-beds), the absence of anywhere higher or cooler to spread to, and competition from larger, faster growing dwarf-shrubs and grasses that are rapidly moving upwards in response to climate ...
... extinction because of climate warming, loss of specialised habitats (e.g. snow-beds), the absence of anywhere higher or cooler to spread to, and competition from larger, faster growing dwarf-shrubs and grasses that are rapidly moving upwards in response to climate ...
3.1 Ecosystem ecology examines interactions between the living
... distinguished by its particular mix of interacting biotic and abiotic components. A forest, for example, contains many interacting biotic components, such as trees, wildflowers, birds, mammals, insects, fungi, and bacteria, that are quite distinct from those in a grassland. Collectively, all the liv ...
... distinguished by its particular mix of interacting biotic and abiotic components. A forest, for example, contains many interacting biotic components, such as trees, wildflowers, birds, mammals, insects, fungi, and bacteria, that are quite distinct from those in a grassland. Collectively, all the liv ...
Overview - Learning Center of the American Southwest
... strongly influence which plant species and communities dominate grassland and shrubland ecosystems (Miller 2005). Summer monsoon precipitation is an important source of moisture for arid and semi-arid grasslands in the American Southwest. Moist air masses originating in the Gulfs of Mexico and Calif ...
... strongly influence which plant species and communities dominate grassland and shrubland ecosystems (Miller 2005). Summer monsoon precipitation is an important source of moisture for arid and semi-arid grasslands in the American Southwest. Moist air masses originating in the Gulfs of Mexico and Calif ...
Commenter 17
... 1) To protect smaller diameter trees that may be over 150 years old. The examples cited were Ponderosa pine on the Deschutes National Forest and Western Larch in Eastern Washington. Due to droughty conditions, competition among trees, harsh growing conditions, and unproductive soils, trees on dry fo ...
... 1) To protect smaller diameter trees that may be over 150 years old. The examples cited were Ponderosa pine on the Deschutes National Forest and Western Larch in Eastern Washington. Due to droughty conditions, competition among trees, harsh growing conditions, and unproductive soils, trees on dry fo ...
Rehabilitation of Degraded Rangeland in Drylands by
... Abstract. In arid and semi-arid lands, the spiny prickly pear (Opuntia ficus-indica) is an outstanding plant for soil conservation and restoration. To determine the role of Opuntia ficus-indica on vegetation recovery process in desertified areas of Southern Tebessa (Northeast Algeria), we investigat ...
... Abstract. In arid and semi-arid lands, the spiny prickly pear (Opuntia ficus-indica) is an outstanding plant for soil conservation and restoration. To determine the role of Opuntia ficus-indica on vegetation recovery process in desertified areas of Southern Tebessa (Northeast Algeria), we investigat ...
pdf reprint
... runs the risk of not accurately representing how the imperiled species will respond to restoration. Therefore, experiments using a surrogate species should be, when possible, coupled with additional measures of success that relate directly to the target species such as population counts via detailed ...
... runs the risk of not accurately representing how the imperiled species will respond to restoration. Therefore, experiments using a surrogate species should be, when possible, coupled with additional measures of success that relate directly to the target species such as population counts via detailed ...
AN ABSTRACT OF THE THESIS OF
... aquatic habitat during their active season because they feed exclusively on aquatic species. California has lost 91% of its original wetlands, and this loss of wetlands has been the primary reason for the decline of this species (USDI, 1994; USFWS, 2006). The distribution of Giant Gartersnakes has b ...
... aquatic habitat during their active season because they feed exclusively on aquatic species. California has lost 91% of its original wetlands, and this loss of wetlands has been the primary reason for the decline of this species (USDI, 1994; USFWS, 2006). The distribution of Giant Gartersnakes has b ...
CNPS policy on mitigation guidelines regarding impacts to rare
... mitigation, should be placed in writing to prevent later confusion or disagreement. The DFG Plant Conservation Program has prepared a mitigation plan annotated outline that includes the basic information needed to develop a mitigation plan for State-listed plant species that would be acceptable to t ...
... mitigation, should be placed in writing to prevent later confusion or disagreement. The DFG Plant Conservation Program has prepared a mitigation plan annotated outline that includes the basic information needed to develop a mitigation plan for State-listed plant species that would be acceptable to t ...
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.