Population Analysis
Service: Analyze demography, population dynamics, and requirements for 1) long-
term viability of native plants and animals, and 2) control of invasive nonnative
plants and animals.
The Technique: Population analysis applies the principles of population biology to
examine the status of native and nonnative populations and how they change
through time. Comprehensive analysis requires understanding the environmental
factors and feedbacks that affect population size, as well as rigorous application of
demography, which focuses on age- or size-class dependent recruitment, mortality,
and migration.
Our Contribution: We analyze population dynamics for plant and animal species
of conservation concern. This entails field sampling of population size over time and
using models to project future trends. Our work includes monitoring and viability
analyses for native plants and animals, in particular, threatened and endangered
species, and for invasive nonnative species.
More Information:
• Wikipedia Population Ecology article:
http://en.wikipedia.org/wiki/Population_ecology
• Wikipedia Demography article:
http://en.wikipedia.org/wiki/Demography
Service: Analyze demography, population dynamics, and requirements for 1) long-
term viability of native plants and animals, and 2) control of invasive nonnative
plants and animals.
The Technique: Population analysis applies the principles of population biology to
examine the status of native and nonnative populations and how they change
through time. Comprehensive analysis requires understanding the environmental
factors and feedbacks that affect population size, as well as rigorous application of
demography, which focuses on age- or size-class dependent recruitment, mortality,
and migration.
Our Contribution: We analyze population dynamics for plant and animal species
of conservation concern. This entails field sampling of population size over time and
using models to project future trends. Our work includes monitoring and viability
analyses for native plants and animals, in particular, threatened and endangered
species, and for invasive nonnative species.
More Information:
• Wikipedia Population Ecology article:
http://en.wikipedia.org/wiki/Population_ecology
• Wikipedia Demography article:
http://en.wikipedia.org/wiki/Demography
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Creekside Center
for Earth Observation
for Earth Observation
Selected Publications
Weiss, S.B. 2006. Barb goat grass control on Coyote Ridge, Santa Clara County,
California. Creekside Center for Earth Observation Report. pdf
Weiss, S.B., R.R. White, D.D. Murphy, and P.R. Ehrlich. 1987. Growth and dispersal
of larvae of the checkerspot butterfly Euphydryas editha. Oikos 50:161-166. pdf
Weiss, S.B. 2006. Barb goat grass control on Coyote Ridge, Santa Clara County,
California. Creekside Center for Earth Observation Report. pdf
Weiss, S.B., R.R. White, D.D. Murphy, and P.R. Ehrlich. 1987. Growth and dispersal
of larvae of the checkerspot butterfly Euphydryas editha. Oikos 50:161-166. pdf
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