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The USGS provides unbiased, objective, and impartial scientific information upon which our audiences, including resource managers, planners, and other entities, rely.
Browse more than 5,500 book chapters authored by our scientists over the past 100+ year history of the USGS and refine search by topic, location, year, and advanced search.
Filter Total Items: 6151
Ecology of urban climates: The need for landscape biophysics in cities Ecology of urban climates: The need for landscape biophysics in cities
In this chapter we will review and evaluate the climatic and ecological parallels between urbanization and climate change, with an emphasis on temperature and its effects on terrestrial ectotherms, a group of organisms thought to be particularly sensitive to climate change. We will summarize patterns of urban warming and how they relate to global climate change projections, then discuss...
Authors
Elsa Youngsteadt, Adam Terando
Wildfire and landscape change Wildfire and landscape change
Wildfire is a worldwide phenomenon that is expected to increase in extent and severity in the future, due to fuel accumulations, shifting land management practices, and climate change. It immediately affects the landscape by removing vegetation, depositing ash, influencing water-repellent soil formation, and physically weathering boulders and bedrock. These changes typically lead to...
Authors
Paul M. Santi, Francis K. Rengers
Brown Bear (Ursus arctos; North America) Brown Bear (Ursus arctos; North America)
This chapter comprises the following sections: names, taxonomy, subspecies and distribution, descriptive notes, habitat, movements and home range, activity patterns, feeding ecology, reproduction and growth, behavior, parasites and diseases, status in the wild, and status in captivity.
Authors
Mark A. Haroldson, Melanie Clapham, Cecily M. Costello, Kerry A. Gunther, Kate Kendall, Sterling Miller, Karine Pigeon, Michael F. Proctor, Karyn D. Rode, Christopher Servheen, Gordon Stenhouse, Frank T. van Manen
Ecological and social dimensions of sloth bear conservation in Sri Lanka Ecological and social dimensions of sloth bear conservation in Sri Lanka
Balancing the needs of humans and wildlife in Sri Lanka presents enormous socioeconomic and conservation challenges. Sloth bears are legally protected, but attacks on humans generate intense fear, which increases the potential for human-caused bear mortality and local extirpation of bears. In this chapter, what is known about the ecology and human dimensions of the sloth bear in a...
Authors
Shyamala Ratnayeke, Frank T. van Manen
Wildfire and Earth surface processes Wildfire and Earth surface processes
Wildfire is a worldwide phenomenon that is expected to increase in extent and severity in the future, due to fuel accumulations, shifting land management practices, and climate change. It immediately affects the landscape by removing vegetation, depositing ash, influencing water-repellent soil formation, and physically weathering boulders and bedrock. These changes typically lead to...
Authors
Paul M Santi, Francis K. Rengers
Thamnophis elegans--Terrestrial gartersnake Thamnophis elegans--Terrestrial gartersnake
No abtract available.
Authors
Charles A. Drost
Lampropeltis californiae—California kingsnake Lampropeltis californiae—California kingsnake
No abstract available.
Authors
Charles A. Drost
Lampropeltis splendida—Desert kingsnake Lampropeltis splendida—Desert kingsnake
No abstract available.
Authors
Charles A. Drost
Coluber constrictor-North American racer Coluber constrictor-North American racer
No abstract available.
Authors
Trevor Persons, Charles A. Drost
Introduction to life cycles, taxonomy, distribution and basic research techniques Introduction to life cycles, taxonomy, distribution and basic research techniques
Avian haemosporidian parasites are a closely related group of apicomplexan parasites with important similarities in their life cycles, development, physiology, and reproduction. Current phylogenies based on mitochondrial and nuclear genes reflect more traditional attempts to classify these organisms based on life history characteristics and morphology, but limited sampling from poorly
Authors
Gediminas Valkiunas, Carter T. Atkinson
Modeling population dynamics with count data Modeling population dynamics with count data
In this chapter, we describe models of open populations that are subject to change over time due to additions and subtractions. Additions may be in the form of recruitment and immigration, and subtractions may be in the form of mortality, emigration, or both. Conceptually, these models are described by the Birth-Immigration-Death-Emigration (BIDE) model of population dynamics (Conroy and...
Authors
Marc Kery, Andy Royle