作者: Robert E. Stewart , Harold A. Kantrud
DOI: 10.2307/4084108
关键词: Population density 、 Fishery 、 Sampling (statistics) 、 Transect 、 Productivity (ecology) 、 Population 、 Habitat 、 Vegetation 、 Census 、 Geography 、 Animal science 、 Animal Science and Zoology 、 Ecology, Evolution, Behavior and Systematics
摘要: … primarily from census data of summer birds on selected straight-… Projected statewide populations of summer birds were … of methods for censusing breeding birds over large areas. The …