Jump to Main Content
- McNamara, Kathryn B.; Elgar, Mark A.; Jones, Therésa M.
- Ethology 2010 v.116 no.1 pp. 39-46
- Cadra cautella; adults; females; larvae; larval development; life history; longevity; males; paternity; population size; risk; sperm competition; spermatozoa
- ... Juvenile population size may affect the potential for future mating opportunities and therefore potentially sperm competition; this may favour ontogenetic adjustments in sperm production. Theory predicts that males should optimize their ejaculatory investment in accordance with the risk of sperm competition. Evidence for these theories is typically revealed in males of highly polyandrous species. ...
- Ferkin, Michael H.
- Ethology 2010 v.116 no.1 pp. 24-31
- Microtus pennsylvanicus; adults; females; gender differences; life history; meadows; models; odors; voles
- ... Models of age-related effects on behavior predict that among short-lived species younger adults are more attractive and attracted to opposite-sex conspecifics than are older adults, whereas the converse is predicted for long-lived species. Although most studies of age-related effects on behavior support these predictions, they are not supported by many studies of scent marking, a behavior used in ...
- PubMed Central: