Titlebook: Current Ornithology; Richard F. Johnston Book 1988 Springer Science+Business Media New York 1988 biology.bird.ecology.evolution.ornitholog

BOGUS

Nongame Bird Conservation,ation efforts focused on traditional game species and endangered species. “Nongame” bird species consisted of that broad spectrum of bird life that was neither hunted nor listed as threatened or endangered.

新鲜

Experimental Design in Ornithology,ways to classify this research: by subject area, by type of dependent variable, or by the nature of the independent variable, for example. One important dimension is the extent to which the research is experimental, involving the control and manipulation of variables that could affect the outcome. T

Conquest

Description of Bird Behavior for Comparative Purposes,ogy embraced phylogenesis, inheritance, “survival value,” and adaptation—research areas that relied on comparative observations and inductive reasoning (Darwin, 1859, 1872). Our understanding of animal behavior has increased through many fine descriptive studies and because ethology has become more

高脚酒杯

Die Fertigungsbelange des Gesenkschmiedens und ihre wissenschaftliche Weiterentwicklung