Results 291 to 300 of about 2,912,298 (341)
Population dynamics and denning ecology of black bears in Shenandoah National Park, Virginia
, 1985 Daniel W. Carney
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2023
Key Concepts CONCEPT 10.1 Populations are dynamic entities that vary in size over time. CONCEPT 10.2 The risk of extinction increases in populations that fluctuate in size and/or are small.
William D. Bowman, Sally D. Hacker
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Key Concepts CONCEPT 10.1 Populations are dynamic entities that vary in size over time. CONCEPT 10.2 The risk of extinction increases in populations that fluctuate in size and/or are small.
William D. Bowman, Sally D. Hacker
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2008
Abstract The chapter is organized as follows. We begin in Section 7.1 with a discussion of the dynamics of the scattering cross-section and characterize this process in terms of a higher order transition process for a discrete scattering population. This is specialized to the case of the birth–death–immigration (BDI) model in Section 7.2.
J. Howard Frank +93 more
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Abstract The chapter is organized as follows. We begin in Section 7.1 with a discussion of the dynamics of the scattering cross-section and characterize this process in terms of a higher order transition process for a discrete scattering population. This is specialized to the case of the birth–death–immigration (BDI) model in Section 7.2.
J. Howard Frank +93 more
+4 more sources
Journal of Theoretical Biology, 1995
Population dynamics is analyzed by means of the power series expansion of a decay ratio F(P) with respect to the continuation probability, P, of survival. The truncation of the higher terms of the series yields the Verhulst equation as a first approximation. The approximation for higher age yields a simple exponential decay law of population, while the
K, Suematsu, M, Kohno
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Population dynamics is analyzed by means of the power series expansion of a decay ratio F(P) with respect to the continuation probability, P, of survival. The truncation of the higher terms of the series yields the Verhulst equation as a first approximation. The approximation for higher age yields a simple exponential decay law of population, while the
K, Suematsu, M, Kohno
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Fractional dynamics of populations
Applied Mathematics and Computation, 2011zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Margarita Rivero +3 more
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The Population Dynamics and Conservation of Primate Populations
Conservation Biology, 1989Abstract: Primates are among the most threatened taxa, with more than half of all species in jeopardy. In this paper we develop population models to use the kind of data on wild primates that primatologists actually collect.
A P, Dobson, A M, Lees
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Spatiotemporal Dynamics in Marginal Populations
The American Naturalist, 2006Population dynamics across a mortality gradient at an ecological margin are investigated using a novel modeling approach that allows direct comparison of stochastic spatially explicit simulation results with deterministic mean field models. The results show that demographic stochasticity has a large effect at population margins such that density ...
Antonovics, J. +2 more
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