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Variable Developmental Period: Intraspecific Competition Models with Conditional Age‐Specific Maturity and Mortality Schedules
Author(s) -
Frogner Karl J.
Publication year - 1980
Publication title -
ecology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.144
H-Index - 294
eISSN - 1939-9170
pISSN - 0012-9658
DOI - 10.2307/1936829
Subject(s) - intraspecific competition , competition (biology) , biology , ecology , population , variable (mathematics) , density dependence , population model , selection (genetic algorithm) , offspring , population growth , demography , mathematics , computer science , pregnancy , mathematical analysis , genetics , artificial intelligence , sociology
A simulation model is presented incorporating a variable time to maturity resulting from density—dependent scarcity of resources for the immature stages. This mechanism is shown to be capable of regulating a population and the model population persists under these conditions. The model is qualitatively robust to changes in the parameters: resource input rate, offspring input rate, and immature death rate. Implications drawn from the model behavior with respect to pest control, “ r —selection” under “K” conditions and field experiments are discussed.