Ornithology Quiz 4

Relationship between body size, reproductive traits, and annual growth potentials.

Small birds with short generation times and large clutch sizes have high growth potential. (50%-100%)
Large bird species with long generation times have low growth potential. (10%-30%)
(matching)

List 3 limiting factors of bird populations

Habitat, climate, food, predation, disease

The most important factor determining avian population size

Habitat (fill in the blank)

List 2 avian species negatively effected by over browsing of white-tailed deer

Wood Thrush, Northern Ovenbird, Hooded Warbler

Predation of duck nests by raccoons and red fox in relation to coyote population size (higher or lower)

When coyote populations are high predation is lower. When coyote populations are low predation is higher.

List 2 species “hit hard” by the West Nile virus

American Crows, Great Horned Owls, Red-tailed, Black-capped Chickadee

Territorial behavior and population size

The spacing of territorial birds in primary habitat excludes some birds from the breeding population (true or false)

Genetic variability in avian populations on islands versus the mainland (lower or higher)

Islands have lower genetic variability

List 2 nationwide programs that monitor long term population trends of birds in North America that depend on volunteer citizen scientists

ebird, Aubudon Christmas bird count, breeding bird survey