Change in Forearm Curvature Throughout the Summer in Female Big Brown Bats

Autor:	Eugene H. Studier, Steven H. Sevick
Rok vydání:	1992
Předmět:	Wing Ecology biology Elbow Radius Anatomy Curvature biology.organism_classification Lift (force) medicine.anatomical_structure Forearm Eptesicus fuscus Genetics medicine Animal Science and Zoology Wing loading Ecology Evolution Behavior and Systematics Geology Nature and Landscape Conservation
Zdroj:	Journal of Mammalogy. 73:866-870
ISSN:	0022-2372 1545-1542
DOI:	10.2307/1382208
Popis:	Female Eptesicus fuscus , sampled biweekly from an attic roost in Byron, Shiawassee Co., Michigan, from 25 April through 26 September 1990, were aged, weighed, sexed, and photographed with left wing extended. From photographs, the following measurements were taken: length of forearm, distance from elbow to point of maximum radius curvature, displacement of radius at that point, width of wing at digit V, and length of wing tip. A significant curvilinear relationship was found over time for maximal curvature displacement of the radius. Forearm curvature decreases throughout pregnancy and most of lactation, and then increases until summer-roost abandonment. This arrangement may increase foraging efficiency by improving lift and maneuverability, and offset increased wing loading.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::bf597f7b38ceb6c9a1b12c0860354053 https://doi.org/10.2307/1382208 Zobrazit plný text záznamu