11:216:101 Lecture Notes - Lecture 14: Short Stature, Thermoregulation, Song Sparrow

• School: Rutgers University
• Department: Ecology, Evolution, and Natural Resources
• Course: 11:216:101
• Professor: S Sukhdeo

Document Summary

Density- independent: density- dependent, factors that control pop. size, graph 1. Birth rate goes down; females do not give birth as often: fegunaity: # of eggs per female in lifetime, decrease in maternal care. Increase in cannibalism: females will eat their babies ix. Increase in teenagers leaving home: change in sex ratio. Females (turtles) before pregnancy in cool temps, resources are likely going to be poor in the future. They skew the sex ratio of the eggs. Ex: plants: above ground competition, resources above ground, below ground competition, root space competition, biomass of plants, weight of leaves, stems, roots, 2nd experient, roots sharing chart. Ex: southern leopard frog: low density chart to high density tadpoles, took out tadpoles used water and added ten tadpoles to each tank, charts, s, density- independent, effects on population growth, happens below k, factors. Volcanic eruptions: natural disasters, drought, hurricane ix, humans. Lots of eggs, larva, seeds: maturing early eggs/seeds become resistant each each.