Ecological and dietary correlates of stable hydrogen isotope ratios in fur and body water of syntopic tropical bats

Ecology ◽  
2013 ◽  
Vol 94 (2) ◽  
pp. 346-355 ◽  
Author(s):  
Christian C. Voigt ◽  
Karin Schneeberger ◽  
Anja Luckner
Keyword(s):  
Hydrogen Isotope ◽  
Isotope Ratios ◽  
Body Water ◽  
Stable Hydrogen Isotope ◽  
Hydrogen Isotope Ratios

scholarly journals Stable Isotope Evidence Links Breeding Geography and Migration Timing in Wood Warblers (Parulidae)

The Auk ◽  
2006 ◽  
Vol 123 (2) ◽  
pp. 431-437 ◽  
Author(s):  
Jeffrey F. Kelly
Keyword(s):  
Hydrogen Isotope ◽  
Life Histories ◽  
Isotope Ratios ◽  
Interspecific Variation ◽  
Autumn Migration ◽  
Breeding Sites ◽  
Migration Timing ◽  
Wood Warblers ◽  
Stable Hydrogen Isotope ◽  
Hydrogen Isotope Ratios

AbstractTracking seasonal movements of songbirds is a key step in understanding the annual cycle of migrants. To better understand autumn migration of wood warblers, I analyzed stable-hydrogen isotope ratios of feathers collected from three species captured during stopover at the Bosque del Apache National Wildlife Refuge, New Mexico. To assess the form and strength of the relationship between timing of migration and breeding origins, I regressed stable-hydrogen isotope ratios of feathers against date of capture. These analyses indicated that Orange-crowned Warblers (Vermivora celata) and Common Yellowthroats (Geothlypis trichas) breeding in the southern portion of these species' ranges precede their northern conspecifics in autumn migration. By contrast, Yellow Warblers (Dendroica petechia) from northern breeding sites arrived before more southerly breeding conspecifics. This pattern is similar to that reported previously in Wilson's Warbler (Wilsonia pusilla). These findings suggest that, among wood warblers, (1) timing of autumn migration is often strongly related to breeding location and (2) interspecific variation in the direction of this relationship is large. The direction and strength of these patterns have implications for our understanding of inter- and intraspecific geographic variation in the life histories of migrants.Evidencia de Isótopos Estables Conecta la Geografía de Nidificación con el Momento de la Migración en Especies de Parulidae

Potential and Limits in Detecting Altitudinal Movements of Bats using Stable Hydrogen Isotope Ratios of Fur Keratin

2011 ◽  
Vol 13 (2) ◽  
pp. 431-438 ◽  
Author(s):  
Anna Erzberger ◽  
Ana G. Popa-Lisseanu ◽  
Gerlind U. C. Lehmann ◽  
Christian C. Voigt
Keyword(s):  
Hydrogen Isotope ◽  
Isotope Ratios ◽  
Stable Hydrogen Isotope ◽  
Hydrogen Isotope Ratios

Stable hydrogen isotope ratios of lignin methoxyl groups as a paleoclimate proxy and constraint of the geographical origin of wood

2007 ◽  
Vol 176 (3) ◽  
pp. 600-609 ◽  
Author(s):  
Frank Keppler ◽  
David B. Harper ◽  
Robert M. Kalin ◽  
Wolfram Meier-Augenstein ◽  
Nicola Farmer ◽  
...  
Keyword(s):  
Hydrogen Isotope ◽  
Geographical Origin ◽  
Isotope Ratios ◽  
Stable Hydrogen Isotope ◽  
Hydrogen Isotope Ratios ◽  
Paleoclimate Proxy

scholarly journals A Geographic-Information-System Approach to Estimating the Origin of Migratory Raptors in North America Using Stable Hydrogen Isotope Ratios in Feathers

The Auk ◽  
2006 ◽  
Vol 123 (3) ◽  
pp. 822-835 ◽  
Author(s):  
Casey A. Lott ◽  
Jeff P. Smith
Keyword(s):  
North America ◽  
North American ◽  
Regional Variation ◽  
Hydrogen Isotope ◽  
Reference Sample ◽  
Bird Species ◽  
Strong Relationship ◽  
Isotope Ratios ◽  
Stable Hydrogen Isotope ◽  
Hydrogen Isotope Ratios

Abstract Analysis of stable hydrogen isotope ratios in feathers (δDf) is a promising method for investigating population connectivity in migratory birds. Stable hydrogen isotope ratios in precipitation (δDp) vary across North America with respect to latitude, elevation, and seasonal air-mass trajectories. A strong relationship between δDf and δDp at locations of feather growth has been documented for several bird species. Some studies have used measurements of δDf to plot the origins of migrants on maps of long-term weighted-average, growing-season North American δDp (hereafter “δDp maps”) using the observed relationship between δDf and δDp from a reference sample of known-origin birds. The accuracy of this method depends on the strength of the δDf and δDp relationship and accuracy of the δDp maps. Recently, a high-resolution (1-km2) model of North American δDp was published (Meehan et al. 2004) that accounts for the effect of elevation on δDp where previous models did not. We compared δDf measurements from a geographically diverse sample of 264 raptor feathers with δDp estimates for feather-sample locations. We documented a strong relationship between raptor δDf and δDp across North America. However, we also documented substantial regional variation in this relationship. We created a “base map” of North American raptor δDf that incorporated the regional variation described by our sample. We plotted δDf values from migrant Sharp-shinned Hawks (Accipiter striatus) captured in eastern Nevada directly on this map to demonstrate how it can be used to view the origins of migrants. Un Procedimiento Basado en Sistemas de Información Geográfica para Estimar el Origen de las Aves Rapaces Migratorias en Norte América Usando los Cocientes de Isótopos Estables de Hidrógeno Presentes en las Plumas

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