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We describe a discrete-time, stochastic population model with density dependence, environmental-type process noise, and lognormal observation or sampling error. The model, a stochastic version of theâ€¦ (More)

- Subhash R. Lele, B. Dennis, Frithjof Lutscher
- Ecology letters
- 2007

We introduce a new statistical computing method, called data cloning, to calculate maximum likelihood estimates and their standard errors for complex ecological models. Although the method uses theâ€¦ (More)

- B. Dennis, Mark L. Taper
- 2007

We report on a new statistical test for detecting density dependence in univariate time series observations of population abundances. The test is a likelihood ratio test based on a discrete timeâ€¦ (More)

- B. Dennis
- 2002

The Allee effect, or inverse density dependence at low population sizes, could seriously impact preservation and management of biological populations. The mounting evidence for widespread Alleeâ€¦ (More)

- Robert F. Costantino, J. M. Cushing, B. Dennis, Robert A. Desharnais
- Nature
- 1995

SIMPLE nonlinear models can generate fixed points, periodic cycles and aperiodic oscillations in population abundance without any external environmental variation. Another familiar theoretical resultâ€¦ (More)

High-resolution data collected over the past 60 years by a single family of Siberian scientists on Lake Baikal reveal significant warming of surface waters and long-term changes in the basal food webâ€¦ (More)

- Andrew M Kramer, B. Dennis, Andrew M Liebhold, John M. Drake
- Population Ecology
- 2009

Allee effects are an important dynamic phenomenon believed to be manifested in several population processes, notably extinction and invasion. Though widely cited in these contexts, the evidence forâ€¦ (More)

Animals and many plants are counted in discrete units. The collection of possible values (state space) of population numbers is thus a nonnegative integer lattice. Despite this fact, manyâ€¦ (More)

- JosÃ© M. Ponciano, Mark L. Taper, B. Dennis, Subhash R. Lele
- Ecology
- 2009

Hierarchical statistical models are increasingly being used to describe complex ecological processes. The data cloning (DC) method is a new general technique that uses Markov chain Monte Carlo (MCMC)â€¦ (More)

- M A T H E M A T I C A L M O D, Robert A. Desharnais, Robert F. Costantino, J. M. Cushing, Shandelle M. Henson, B. Dennis

We used small perturbations in adult numbers to control large fluctuations in the chaotic demographic dynamics of laboratory populations of the flour beetle Tribolium castaneum. A nonlinearâ€¦ (More)