NATR 320 Lecture 18: Natr 320 Lecture 18
6 Oct 2020
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Need to split resources between growth and reproduction. Trade-off between number and size of offspring. Lack clutch size = max number of offspring that a parent can successfully raise to maturity. Higher latitudes have longer foraging daylight hours. Larger bird clutch sizes in higher latitudes. Trade-off between number of offspring and size also occurs in organisms without parental care. Northern lizards = smaller eggs, larger clutches. Southern lizards = larger eggs, smaller clutches. Trade-off between current reproduction and other life history traits. When birds reproduce less they have a higher survival rate. Fruit flies put more energy into unmated females. Trees with small number of cones (reproductive seed unit) will grow more than. Will live longer with mated females trees with large number of cones. Provision by gathering dung and laying their eggs. Stick around during beetle baby"s lifetime to protect them from predators. Dispersal the movement of organisms or propagules from their birthplace.
