Populations in a Seasonal Environment
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A01=Stephen D. Fretwell
Adaptation
Adaptive value
Analogy
Author_Stephen D. Fretwell
Bergmann's rule
Bird
Bird nest
Birth rate
Breeding season
Carrying capacity
Category=PSAF
Codling moth
Coevolution
Demography
Density dependence
Drought
Ecological succession
Ecology
Ecotype
eq_bestseller
eq_isMigrated=1
eq_isMigrated=2
eq_nobargain
eq_non-fiction
eq_science
Estimation
Evening grosbeak
Field sparrow
Frequency-dependent selection
Generation time
Great tit
Group selection
Hibernation
House sparrow
Hypothetical species
Insect
Intraspecific competition
Junco
Larva
Mortality rate
Nest box
Organism
Ornithology
Overexploitation
Pair bond
Photoperiodism
Polynomial regression
Population control
Population cycle
Population decline
Population dynamics
Population ecology
Population growth
Population size
Predation
Prediction
Probability
Pupa
Reproductive success
Savannah sparrow
Seasonality
Shrub
Social status
Song sparrow
Sparrow
Species distribution
Statistical significance
Statistics
Swamp sparrow
Taxon
Territory (animal)
Theoretical ecology
Thrips
Tit (bird)
Towhee
Trophic level
Year
Yellowthroat
Product details
- ISBN 9780691081069
- Weight: 312g
- Dimensions: 140 x 216mm
- Publication Date: 21 Jul 1972
- Publisher: Princeton University Press
- Publication City/Country: US
- Product Form: Paperback
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Most organisms live in a seasonal environment. During their life cycles, some species face seasons of cold and heat, aridity and abundant rainfall, migration and stable residence, breeding and nonbreeding. Populations grow and decline as supplies of materials essential to their survival wax and wane. Such qualitative truths as these flow obviously from field observations. In this original monograph, Stephen Fretwell analyzes the highly complex interaction between a population and a regularly varying environment in an attempt to define and measure seasonality as a critical parameter in the general theory of population regulation. Concerned primarily with the size and the habitat distribution of populations, Professor Fretwell develops simple models that, when applied to specific populations, usually of birds, demonstrate the effect of seasonal variations on the regulation of populations. He maintains that seasonality, as a concept, is essential to a full understanding of environmental interaction.
During the course of his exposition, the author offers several new hypotheses, including theories affecting the breeding, numbers, distribution, and diversity of wintering birds, and a theory affecting the body size of sparrows.
Stephen Fretwell is a member of the Division of Biology, Kansas State University.
