Using hydrogen isotopes to assign origins of bats in the eastern United States

  • Authors: Britzke, Eric R.; Loeb, Susan C.; Hobson, Keith A.; Romanek, Christopher S.; Vonhof, Maarten J.
  • Publication Year: 2009
  • Publication Series: Miscellaneous Publication
  • Source: Journal of Mammalogy, Vol. 90(3): 743-751

Abstract


Stable hydrogen isotopes (dDs) in metabolically inert tissues such as feathers and hair provide a set of endogenous markers that may be useful for establishing migratory connectivity in animals. We tested the assumption of a clear relationship between dD values of growing-season–weighted average precipitation (dDp) derived from 2 geographic information system (GIS) models or latitude (LAT) and dD values in bat hair (dDh), and examined intra- and interspecific variation in dDh of 4 bat species in the eastern United States. We analyzed 251 hair samples from 1 long-distance migrant (eastern red bat [Lasiurus borealis]) and 3 regional migrants (Indiana bat [Myotis sodalis], northern long-eared bat [M. septentrionalis], and little brown bat [M. lucifugus]) captured during the reproductive period (pregnancy and lactation) when bats are resident. LAT explained more of the variation in  performed better for some species.

  • Citation: Britzke, Eric R.; Loeb, Susan C.; Hobson, Keith A.; Romanek, Christopher S.; Vonhof, Maarten J. 2009. Using hydrogen isotopes to assign origins of bats in the eastern United States. Journal of Mammalogy, Vol. 90(3): 743-751
  • Keywords: bats, interspecific variation, intraspecific variation, Lasiurus borealis, migration, Myotis lucifugus, Myotis septentrionalis, Myotis sodalis, stable hydrogen isotope analysis
  • Posted Date: September 17, 2009
  • Modified Date: September 27, 2016
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