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Climate change is already affecting species in many ways. Because individual species respond to climate change differently, some will be adversely affected by climate change whereas others may benefit. Successfully managing species in a changing climate will require an understanding of which species will be most and least impacted by climate change. Although several approaches have been proposed for assessing the vulnerability of species to climate change, it is unclear whether these approaches are likely to produce similar results. In this study, we compared the relative vulnerabilities to climate change of 76 species of birds, mammals, amphibians, and trees based on three different approaches to assessing vulnerability....
Categories: Project;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: 2012,
Biodiversity,
Birds,
Birds,
CASC, All tags...
Completed,
Data Visualization & Tools,
Data Visualization & Tools,
Mammals,
Mammals,
Northwest,
Northwest,
Northwest,
Northwest CASC,
Other Wildlife,
Other Wildlife,
Plants,
Plants,
Prediction,
Projects by Region,
Science Tools for Managers,
Science Tools for Managers,
Vulnerability Assessment,
Wildlife and Plants,
Wildlife and Plants, Fewer tags
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The National Forest System (NFS) is composed of 155 national forests (NFs) and 20 national grasslands (NGs), which encompass a wide range of ecosystems, harbor much of the nation’s biodiversity, and provide myriad goods and services. The mission of the U.S. Forest Service (USFS), which manages the NFS, has broadened from water and timber to sustaining ecosystem health, diversity, and productivity to meet the needs of present and future generations. The evolution of this mission reflects changing societal values (e.g., increasing emphasis on recreation, aesthetics, and biodiversity conservation), a century of new laws, increasing involvement of the public and other agencies in NF management, and improved ecological...
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Survival or extinction of an endangered species is inherently stochastic. We develop statistical methods for estimating quantities related to growth rates and extinction probabilities from time series data on the abundance of a single population. The statistical methods are based on a stochastic model of exponential growth arising from the biological theory of age or stagestructured populations. The model incorporates the socalled environmental type of stochastic fluctuations and yields a lognormal probability distribution of population abundance. Calculation of maximum likelihood estimates of the two unknown parameters in this model reduces to performing a simple linear regression. We describe techniques for rigorously...
Categories: Publication;
Types: Citation,
Journal Citation;
Tags: California Condor,
Ecological Monographs,
Kirtland's Warbler,
Laysan Finch,
Palila, All tags...
Puerto Rican Parrot,
Whooping Crane,
Wiener process.,
conservation biology,
diffusion process,
endangered species,
ex- ponential growth,
extinction,
grizzly bear,
inverse Gaussian distribution,
lognormal distribution,
parameter estimation,
stochastic differential equation,
stochastic population model, Fewer tags
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Observation and habitat data were compiled and analyzed in conjunction with recovery planning for the endangered California Condor (Gymnogyps californianus). A geographic information system (GIS) was used to provide a quantitative inventory of recent historical Condor habitats, to measure the association of Condor activity patterns and mapped habitat variables, and to examine spatio-temporal changes in the range of the species during its decline. Only five percent of the study area within the historic range is now used for urban or cultivated agricultural purposes. Observations of Condor feeding perching, and nesting were nonrandomly associated with mapped land cover, in agreement with life history information for...
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Assessing the sensitivities of species and ecosystems to climate change in the Pacific Northwest, credited to Langdon, J., published in 2010. Published in Pacific Northwest Climate Science Conference, June 15-16, in 2010.
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