Appendix F - Wetlands
... to even a 1-2% increase in adult mortality. Roads are the primary cause of adult mortality. Blanding’s Turtles travel to multiple wetlands throughout a single year (typically 3-6) and adult females travel to nesting habitats, crossing roads in the process. As this turtle is relatively difficult to s ...
... to even a 1-2% increase in adult mortality. Roads are the primary cause of adult mortality. Blanding’s Turtles travel to multiple wetlands throughout a single year (typically 3-6) and adult females travel to nesting habitats, crossing roads in the process. As this turtle is relatively difficult to s ...
Bird conservation in tropical ecosystems
... but many of these are important in terms of rarity and uniqueness (see Chapter 12). Birds endemic to islands often have relatively small geographical ranges, having diverged from continental ancestors through isolation. This isolation has often resulted in the evolution of flightlessness, fearlessne ...
... but many of these are important in terms of rarity and uniqueness (see Chapter 12). Birds endemic to islands often have relatively small geographical ranges, having diverged from continental ancestors through isolation. This isolation has often resulted in the evolution of flightlessness, fearlessne ...
View/Open - Oregon State University
... We created a size frequency distribution of all M. magister individuals we found (Fig. 1) to look at the levels of instars found. Habitat was not a significant predictor of length (one-way ANOVA, F2, 77= 2.22, p=0.115), and the Tukey Method grouped all habitats together for similarity in average siz ...
... We created a size frequency distribution of all M. magister individuals we found (Fig. 1) to look at the levels of instars found. Habitat was not a significant predictor of length (one-way ANOVA, F2, 77= 2.22, p=0.115), and the Tukey Method grouped all habitats together for similarity in average siz ...
Interactive effects of habitat modification and species invasion on
... beachrock habitats. This caused a dramatic shift from Mytilasterdominated to Brachidontes-dominated communities on near-shore beachrock [25], which might otherwise have been a sink habitat for invasive species. Therefore, habitat destruction altered the population-level outcome for native species by ...
... beachrock habitats. This caused a dramatic shift from Mytilasterdominated to Brachidontes-dominated communities on near-shore beachrock [25], which might otherwise have been a sink habitat for invasive species. Therefore, habitat destruction altered the population-level outcome for native species by ...
Landscape modification and habitat fragmentation: a
... importantly, we hope this review will stimulate more holistic thinking about the ecology and management of modified landscapes. First, we introduce a conceptual framework for understanding the effects of landscape modification on species and assemblages. Second, threatening processes associated with ...
... importantly, we hope this review will stimulate more holistic thinking about the ecology and management of modified landscapes. First, we introduce a conceptual framework for understanding the effects of landscape modification on species and assemblages. Second, threatening processes associated with ...
Grassland Birds: An Overview of Threats and Recommended Management Strategies
... Three issues are critical to preservation of grassland habitats throughout North America. First, all native temperate grasslands have experienced major, sometimes profound, losses of habitat from agriculture, range management, and urban development. In addition, habitat fragmentation and degradation ...
... Three issues are critical to preservation of grassland habitats throughout North America. First, all native temperate grasslands have experienced major, sometimes profound, losses of habitat from agriculture, range management, and urban development. In addition, habitat fragmentation and degradation ...
Interim koala referral advice for proponents
... area, there would be no need to undertake a koala survey or habitat assessment. Where the PMST indicates that koalas may be present, but there is little or no information available on koala populations and habitat in your study area, you should conduct both a habitat assessment and a koala survey (s ...
... area, there would be no need to undertake a koala survey or habitat assessment. Where the PMST indicates that koalas may be present, but there is little or no information available on koala populations and habitat in your study area, you should conduct both a habitat assessment and a koala survey (s ...
Habitat Use by White-tailed Deer in a Tropical Forest
... critical dry season. This greater selectivity in the diet could be associated with an increase in the foraging area, as greater distances are covered and the home-range is increased. In the dry period, low water and food availability is coupled with a decrease in cover to protect against climate and ...
... critical dry season. This greater selectivity in the diet could be associated with an increase in the foraging area, as greater distances are covered and the home-range is increased. In the dry period, low water and food availability is coupled with a decrease in cover to protect against climate and ...
New England Cottontail - Environmental Defense Fund
... coastal habitats, other areas with sandy soils, as well as forests regenerating after disturbances caused by beavers, wind storms, insect infestations, or lightning-caused wildfire. Coastal regions are especially prone to small-scale natural and human-caused disturbances, including Native American s ...
... coastal habitats, other areas with sandy soils, as well as forests regenerating after disturbances caused by beavers, wind storms, insect infestations, or lightning-caused wildfire. Coastal regions are especially prone to small-scale natural and human-caused disturbances, including Native American s ...
Classifying Threats to Biodiversity
... The IUCN has created standard classifications of direct threats, specifically to ensure a common nomenclature is used by conservationists to describe issues and facilitate cross-project learning as well as generalization of information across projects (Salafsky et al., 2008; IUCN, 2011) )see Appendi ...
... The IUCN has created standard classifications of direct threats, specifically to ensure a common nomenclature is used by conservationists to describe issues and facilitate cross-project learning as well as generalization of information across projects (Salafsky et al., 2008; IUCN, 2011) )see Appendi ...
Has the ghost of competition passed?
... spatial scale. I then contrast the predictions with Abramsky and Rosenzweig’s gerbil isoclines (Abramsky et al., 1991, 1992, 1994). I conclude with a short discussion on the relative uses of constant versus variable competition coefficients and how they relate to the ghost of competition past. ...
... spatial scale. I then contrast the predictions with Abramsky and Rosenzweig’s gerbil isoclines (Abramsky et al., 1991, 1992, 1994). I conclude with a short discussion on the relative uses of constant versus variable competition coefficients and how they relate to the ghost of competition past. ...
How can we apply theories of habitat selection to wildlife
... Abstract. Habitat-selection theory can be applied to solve numerous problems in the conservation and management of wildlife. Many of the solutions involve the use of habitat isodars, graphs of densities in pairs of habitats such that expected fitness is the same in both. For single species, isodars ...
... Abstract. Habitat-selection theory can be applied to solve numerous problems in the conservation and management of wildlife. Many of the solutions involve the use of habitat isodars, graphs of densities in pairs of habitats such that expected fitness is the same in both. For single species, isodars ...
Synergies among extinction drivers under global change
... extinction risk for most species are more severe than previously recognised. As such, conservation actions which only target single-threat drivers risk being inadequate because of the cascading effects caused by unmanaged synergies. Future work should focus on how climate change will interact with a ...
... extinction risk for most species are more severe than previously recognised. As such, conservation actions which only target single-threat drivers risk being inadequate because of the cascading effects caused by unmanaged synergies. Future work should focus on how climate change will interact with a ...
USE OF SPATIAL FEATURES BY FORAGING INSECTIVOROUS
... yumanensis) rarely occur in highly urbanized areas (Evelyn et a1. 2004). Available information on insectivorous bats suggests that the most common species in cities are those often foraging on high densities of insects found near white-light lamps (Furlonger et a1. 1987; Gaisler et a1. 1998). Observ ...
... yumanensis) rarely occur in highly urbanized areas (Evelyn et a1. 2004). Available information on insectivorous bats suggests that the most common species in cities are those often foraging on high densities of insects found near white-light lamps (Furlonger et a1. 1987; Gaisler et a1. 1998). Observ ...
habitat in agricultural landscapes: how much is enough?
... communities whose numbers are stable or increasing. There are many factors accounting for biodiversity loss beyond the destruction of habitat. Minimum habitat areas for species may vary depending on region and landscape context. For most species, little is known about the minimum individual and popu ...
... communities whose numbers are stable or increasing. There are many factors accounting for biodiversity loss beyond the destruction of habitat. Minimum habitat areas for species may vary depending on region and landscape context. For most species, little is known about the minimum individual and popu ...
Spotted-tailed Quoll: Endangered species
... Why is it threatened? Although Spotted-tailed quolls are found in Qld, NSW and Vic, their populations have declined since European settlement and they are now fragmented. They appear to be extinct in SA. The decline of the Spotted-tailed Quoll is not fully understood but factors that are likely to b ...
... Why is it threatened? Although Spotted-tailed quolls are found in Qld, NSW and Vic, their populations have declined since European settlement and they are now fragmented. They appear to be extinct in SA. The decline of the Spotted-tailed Quoll is not fully understood but factors that are likely to b ...
RG report - Norges forskningsråd
... Combinations of several retrospective vegetation history and archaeological methods will provide information on long-term natural changes, human settlement, timber logging, grazing pressure, economics, and human wellbeing. The project will thereby be able to analyse patterns in biodiversity and ecos ...
... Combinations of several retrospective vegetation history and archaeological methods will provide information on long-term natural changes, human settlement, timber logging, grazing pressure, economics, and human wellbeing. The project will thereby be able to analyse patterns in biodiversity and ecos ...
File
... therefore do not compete for the same resources 7. a habitat is an area or environment where an organism or ecological community normally dwells, or lives 8. two species that use the same resources in the same way compete together; the ...
... therefore do not compete for the same resources 7. a habitat is an area or environment where an organism or ecological community normally dwells, or lives 8. two species that use the same resources in the same way compete together; the ...
natural habitats
... and American beech. Only three percent of the trees in these remaining forests had a diameter at breast height of 18 inches (46 cm) or more. This suggests that most of what remained at that time was second growth that had appeared after the original clearing. For the past few decades the major trend ...
... and American beech. Only three percent of the trees in these remaining forests had a diameter at breast height of 18 inches (46 cm) or more. This suggests that most of what remained at that time was second growth that had appeared after the original clearing. For the past few decades the major trend ...
Documentation
... relatively small areas, the slow growth and maturation rates of many reef fishes, and the complex community interactions in reef ecosystems, are especially susceptible to overfishing and habitat degradation (Birkeland 2001). Moreover, overexploitation of key reef species has contributed to the insta ...
... relatively small areas, the slow growth and maturation rates of many reef fishes, and the complex community interactions in reef ecosystems, are especially susceptible to overfishing and habitat degradation (Birkeland 2001). Moreover, overexploitation of key reef species has contributed to the insta ...
Brady`s Pincushion Cactus (Pediocactus bradyi)
... Pediocactus bradyi is known only from the vicinity of Marble Canyon, Coconino Co., AZ, over a stretch of ca. 25 miles. Management responsibility is shared by the Bureau of Land Management (AZ Strip District), Glen Canyon National Recreation Area and the Navajo Nation. There are 7 species and their v ...
... Pediocactus bradyi is known only from the vicinity of Marble Canyon, Coconino Co., AZ, over a stretch of ca. 25 miles. Management responsibility is shared by the Bureau of Land Management (AZ Strip District), Glen Canyon National Recreation Area and the Navajo Nation. There are 7 species and their v ...
Biodiversity and the Functioning of Selected Terrestrial Ecosystems
... including the wild or unmanaged species that inhabit these systems. The diversity of both of these components has an important role in the functioning and sustainability of agricultural ecosystems. Planned diversity at genetic, species, habitat and landscape levels can have an impact on agroecosyste ...
... including the wild or unmanaged species that inhabit these systems. The diversity of both of these components has an important role in the functioning and sustainability of agricultural ecosystems. Planned diversity at genetic, species, habitat and landscape levels can have an impact on agroecosyste ...
Landscape size affects the relative importance of habitat amount
... importance may change with the size of the landscape considered because the multiple (and potentially conflicting) ecological processes that are influenced by landscape structure occur at different spatial scales (e.g. dispersal, predation, foraging). We estimated the relative effects of habitat los ...
... importance may change with the size of the landscape considered because the multiple (and potentially conflicting) ecological processes that are influenced by landscape structure occur at different spatial scales (e.g. dispersal, predation, foraging). We estimated the relative effects of habitat los ...
Western ringtail possum - WWF
... Western ringtail possum Threats to the western ringtail possum The western ringtail possum has disappeared from 90 per cent of its original range due to a number of threats including habitat loss due to land clearing and logging, and introduced predators such as foxes and cats. Habitat loss has res ...
... Western ringtail possum Threats to the western ringtail possum The western ringtail possum has disappeared from 90 per cent of its original range due to a number of threats including habitat loss due to land clearing and logging, and introduced predators such as foxes and cats. Habitat loss has res ...
No. U.S. DESCRIPTION RIVER,
... in abundance as a simple function of increased outflow and decreased salinity; the further X2 is displaced downstream, the greater the abundance or survival of these species (Jassby, Appendix B;) ...
... in abundance as a simple function of increased outflow and decreased salinity; the further X2 is displaced downstream, the greater the abundance or survival of these species (Jassby, Appendix B;) ...
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.