NCEAS Working Groups
Dynamics of large mammalian herbivores in changing environments: Alternative modeling approaches
Project Description
The world's populations of large herbivores have shown dramatically different dynamics during the last two decades. The abundance and distribution of some ungulate species has declined abruptly, while other species have become excessively abundant, and still others have shown complex, oscillatory dynamics. These patterns seem to result from a composite of influences, including those operating at global and local scales. Conventional population models are rooted in assumptions about steady state and do not adequately incorporate environmental variability. We propose a working group that will exploit data sets and expertise from different regions to develop new models of ungulate population dynamics, capable of accommodating the complexity of environmental interactions at different spatial and temporal scales.
Principal Investigator(s)
Norman Owen-Smith, N. Thompson Hobbs, Andrew W. Illius, Per Lundberg
Project Dates
Start: November 30, 2001
End: June 20, 2004
completed
Participants
- Heather Berkley
- University of California, Santa Barbara
- Randall B. Boone
- Colorado State University
- David Cope
- Macaulay Land Use Research Institute
- Tim Coulson
- University of Cambridge
- Marco Festa-Bianchet
- Université de Sherbrooke
- John M. Fryxell
- University of Guelph
- Jean-Michel Gaillard
- Université Claude Bernard
- Iain J. Gordon
- Macaulay Land Use Research Institute
- John E. Gross
- CSIRO Davies Laboratory
- Ray Hilborn
- University of Washington
- N. Thompson Hobbs
- Colorado State University
- Andrew W. Illius
- University of Edinburgh
- Bruce E. Kendall
- University of California, Santa Barbara
- Per Lundberg
- University of California, Santa Barbara
- Dale McCullough
- University of California, Berkeley
- Patricia D. Moehlman
- Unknown
- Joseph O. Ogutu
- International Livestock Research Institute
- Norman Owen-Smith
- University of the Witwatersrand
- Hans-Peter Piepho
- Universitaet-Gesamthochschule Kassel
- Anthony R. E. Sinclair
- University of British Columbia
- Nils Stenseth
- University of Oslo
- Peter Turchin
- University of Connecticut
- John A. Vucetich
- Michigan Technological University
- Guiming Wang
- Colorado State University
Products
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Journal Article / 2003
Estimating selection on neonatal traits in red deer using elasticity path analysis
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Journal Article / 2004
The demographic consequences of releasing a population of red deer from culling
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Journal Article / 2003
Variable age structure and apparent density dependence in survival of adult ungulates
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Journal Article / 2003
Life-history evolution in harvested populations: The role of natural predation
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Journal Article / 2006
Australian rangelands as complex adaptive systems: A conceptual model and preliminary results
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Presentations / 2004
Scale and complexity in arid land ecosystems
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Journal Article / 2004
Climate forcing and density dependence in a mountain ungulate population
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Data Set / 2006
Large herbivore censuses from Kruger Park
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Presentations / 2001
Temporally and spatially invariant herbivore population dynamics
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Report or White Paper / 2003
Modelling Australia's rangelands as social-economic systems
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Presentations / 2001
Analysis of herbivore population dynamics in relation to environmental variability using linear mixed models
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Journal Article / 2003
ENSO, rainfall and temperature influences on extreme population declines among African savanna ungulates
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Presentations / 2001
Incorporating environment into demography
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Report or White Paper / 2001
Report on first Working Group
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Presentations / 2003
Climate influence on large herbivore populations in the Krueger National Park
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Presentations / 2003
Interactive influence of climate and predation on population dynamics of Kruger Park ungulates
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Journal Article / 2005
Correlates of survival rates for 10 African ungulate populations: Density, rainfall and predation
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Book / 2006
Ecology of Populations
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Presentations / 2001
Biotic and abiotic effects on Serengeti wildebeest dynamics
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Presentations / 2003
The influence of top-down, bottom-up, and abiotic factors on the moose population of Isle Royale
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Journal Article / 2004
The influence of top-down, bottom-up and abiotic factors on the moose (Alces alces) population of Isle Royale
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Journal Article / 2009
Density dependence in northern ungulates: interactions with predation and resources
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Journal Article / 2003
Biodiversity and species interactions: Extending Lotka-Volterra community theory