Birds of Indian Subcontinent

American Coot Response to Habitat Change on a Colorado Marsh

Publication Type:Journal Article
Year of Publication:1981
Authors:Gorenzel, WP, Ryder, RA, Braun, CE
Journal:The Southwestern Naturalist
Date Published:1981
ISBN Number:00384909
Keywords:Fulica, Fulica americana, Fulica atra, Rallidae
Abstract:The response of American Coots (Fulica americana) to habitat alteration, including partial and complete drawdown, burning and reflooding, and complete removal of emergents, was studied on a Colorado marsh. Use of the marsh during spring migration was not affected until low water levels exposed emergents. Number of nests decreased from 77 to six following alteration, but increased (56) after reflooding. Alteration also resulted in a delay of 5 to 6 weeks in nesting and movement by coots from and to the marsh in response to loss or gain in preferred foods. Increases in aquatic foods after alteration extended fall migration use. Coot populations can be managed easily through habitat manipulation.
Short Title:The Southwestern Naturalist
Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith