BIOLOGY 1M03 Lecture Notes - Lecture 29: Dusky Antechinus, Sockeye Salmon, Semelparity And Iteroparity
6 May 2019
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If you produce no "extra" offspring and survive to breed again (iteroparity approach) If you produce over 2 "extra" offspring (that will survive to reproduce) and die (more than replace the dna in a diploid individual) Big bang (semelparous) male mammal: marsupial mouse: dusky antechinus, males compete for mates. Stable, density dependent interactions: characteristics, usually large. Low fecundity: high quality young, high parental investment, reproduce late. Long lived/iteroparous: populations of different species influences each other. Community ecology: community: all of the species that interact with each other in a particular era. Limiting resources: food, water, shelter, nutrients, light, nesting sites, etc, may be in short supply. Law of the minimum: of all possible resources, one particular will limit the population, suggests that there will be one necessity of life that is not being met which will limit the population size. Involved in density dependent effects: a lot of species in one area compete for access to resources, competition between species.
