Results 11 to 20 of about 3,935,284 (258)

Growth-density inversion in Escherichia coli reveals superlinear, not sublinear, density dependence. [PDF]

PLoS Biol
Density dependence is a core principle in ecology and evolution, and yet the shape of the relationship between per capita growth and population size remains contentious.
Orr JA, Davis KE, Williams AH, Engelstädter J, Stouffer DB, Letten AD.   +5 more
europepmc   +2 more sources

Non-linear density dependence in time series is not evidence of non-logistic growth [PDF]

, 2008
Time series of population density are often used to seek deviations from logistic regulation by testing for a non-linear decline in per capita growth rate with density.
Doncaster, C. Patrick
core   +2 more sources

Estimating the functional form for the density dependence from life history data [PDF]

, 2008
Two contrasting approaches to the analysis of population dynamics are currently popular: demographic approaches where the associations between demographic rates and statistics summarizing the population dynamics are identified; and time series approaches
Tavecchia, G., Pelletier, F., Coulson, Timothy, Coulson, T, Pilkington, J.G., Stenseth, N. C., Stenseth, NC, Childs, DZ, Ezard, T. H. G., Clutton-Brock, TH, Ezard, T.H.G., Childs, D.Z., Pemberton, J. M., Clutton-Brock, T.H., Childs, D. Z., Ezard, TH, Ezard, THG, Crawley, M.J., Stenseth, N.C., Kruuk, LEB, Pilkington, J. G., Kruuk, L. E. B., Coulson, T., Kruuk, L.E.B., Pemberton, J.M., Crawley, MJ, Pilkington, JG, Pelletier, F, Clutton-Brock, T. H., Crawley, M. J., Pemberton, JM, Tavecchia, G, Kruuk, LE, Pemberton, Josephine M, Clutton-Brock, Tim H, Coulson, Tim, Kruuk, Loeske, Tavecchia, Giacomo, Pilkington, Jill G.   +38 more
core   +1 more source

A mechanistic analysis of density dependence in algal population dynamics

Frontiers in Ecology and Evolution, 2015
Population density regulation is a fundamental principle in ecology, but the specific process underlying functional expression of density dependence remains to be fully elucidated.
Adrian eBorlestean, Paul C. Frost, Dennis L. Murray   +2 more
doaj   +1 more source

Crop resilience via inter-plant spacing brings to the fore the productive ideotype

Frontiers in Plant Science, 2022
Natural selection favors the competitive ideotype, enabling native plants to survive in the face of intense competition. The productive ideotype is the goal of artificial selection to achieve high crop yields via the efficient use of resources in a self ...
Ioannis Tokatlidis
doaj   +1 more source

Density dependence in North American ducks [PDF]

Animal Biodiversity and Conservation, 2004
The existence or otherwise of density dependence within a population can have important implications for the management of that population. Here, we use estimates of abundance obtained from annual aerial counts on the major breeding grounds of a variety ...
Jamieson, L. E., Brooks, S. P.
doaj  

Details from statistical models for density dependence.

, 2022
Details from statistical models for density dependence.
Milou Groenenberg (6878504), Richard J. Parnell (8040530), Thomas Breuer (59756), Marie L. Manguette (6878507), Andrew M. Robbins (13983513), Claudia Stephan (3267675), Martha M. Robbins (8927603), Emma J. Stokes (13983516)   +7 more
core   +1 more source

Effects of temporal variation in temperature and density dependence on insect population dynamics

Ecosphere, 2016
Understanding the effects of environmental variation on insect populations is important in light of predictions about increasing climatic variability. This paper uses the univoltine western corn rootworm (WCR, Diabrotica virgifera virgifera LeConte) as a
C. V. Haridas, Lance J. Meinke, Bruce E. Hibbard, Blair D. Siegfried, Brigitte Tenhumberg   +4 more
doaj   +1 more source

Population dynamics of the glacial relict amphipods in a subarctic lake: role of density‐dependent and density‐independent factors

Ecology and Evolution, 2021
Relative role of intrinsic density‐dependent factors (such as inter‐ and intraspecific competition, predation) and extrinsic density‐independent factors (environmental changes) in population dynamics is a key issue in ecology.
Alexey A. Maximov
doaj   +1 more source

Episodic herbivory, plant density dependence, and stimulation of aboveground plant production

Ecology and Evolution, 2020
Herbivory is a major energy transfer within ecosystems; an open question is under what circumstances it can stimulate aboveground seasonal primary production. Despite multiple field demonstrations, past theory considered herbivory as a continuous process
Mark E. Ritchie, Jacob F. Penner
doaj   +1 more source