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Unformatted text preview: Biology 330 Class Notes 10/8/09 Caloric value is not the only incentive for consumption of prey by predators Big birds can eat big fuits while all birds can eat small fruits Gape width in Alosa fish Space between each line is more narrow in one fish o Can filter smaller prey o Food has to be big enough to be trapped Space between each line is wider in the other fish o Some prey will not be filtered because the food item is too small (plankton) Relationship between largest filterable particle and carapace length in a variety of cladocerans * Intraspecific competition that negative effect a population size has on the growth rate of the same species. Competition between members of the SAME SPECIES. As population size increases, it has a negative effect on the growth rate of that population When population sizes are small, maintenance is not an issue be. Ration size is not a problem Interspecific competition the negative effect that a population size of one species has on the growth rate of a second (other) species It doesnt matter if the same species is competing for resources or if its some other species competing for resources lower growth rate results in both cases Resources doesnt include JUST food, it includes: Food Space Mates Example: Intraspecific competition Bird: Great Tits Clutch size = the average number of eggs per nest Relationship present...
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