Download
journal.pone.0117052.pdf 1,34MB
WeightNameValue
1000 Titel
  • Seasonal Variation in Stable Carbon and Nitrogen Isotope Values of Bats Reflect Environmental Baselines
1000 Autor/in
  1. Popa-Lisseanu, Ana G. |
  2. Kramer-Schadt, Stephanie |
  3. Quetglas, Juan |
  4. Delgado-Huertas, Antonio |
  5. Kelm, Detlev H. |
  6. Ibanez, Carlos |
1000 Erscheinungsjahr 2015
1000 LeibnizOpen
1000 Publikationstyp
  1. Artikel |
1000 Online veröffentlicht
  • 2015-02-20
1000 Erschienen in
1000 Quellenangabe
  • 10(2): e0117052
1000 FRL-Sammlung
1000 Copyrightjahr
  • 2015
1000 Lizenz
1000 Verlagsversion
  • http://dx.doi.org/10.1371/journal.pone.0117052 |
  • https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4336313/ |
1000 Publikationsstatus
1000 Begutachtungsstatus
1000 Sprache der Publikation
1000 Abstract/Summary
  • The stable carbon and nitrogen isotope composition of animal tissues is commonly used to trace wildlife diets and analyze food chains. Changes in an animal's isotopic values over time are generally assumed to indicate diet shifts or, less frequently, physiological changes. Although plant isotopic values are known to correlate with climatic seasonality, only a few studies restricted to aquatic environments have investigated whether temporal isotopic varia-tion in consumers may also reflect environmental baselines through trophic propagation. We modeled the monthly variation in carbon and nitrogen isotope values in whole blood of four insectivorous bat species occupying different foraging niches in southern Spain. We found a common pattern of isotopic variation independent of feeding habits, with an overall change as large as or larger than one trophic step. Physiological changes related to reproduction or to fat deposition prior to hibernation had no effect on isotopic variation, but juvenile bats had higher delta C-13 and delta N-15 values than adults. Aridity was the factor that best explained isotopic variation: bat blood became enriched in both C-13 and N-15 after hotter and/or drier periods. Our study is the first to show that consumers in terrestrial ecosystems reflect seasonal environmental dynamics in their isotope values. We highlight the danger of misinterpreting stable isotope data when not accounting for seasonal isotopic baselines in food web studies. Understanding how environmental seasonality is inte-grated in animals' isotope values will be crucial for developing reliable methods to use stable isotopes as dietary tracers.
1000 Fächerklassifikation (DDC)
1000 Liste der Beteiligten
  1. https://frl.publisso.de/adhoc/creator/UG9wYS1MaXNzZWFudSwgQW5hIEcu|http://orcid.org/0000-0002-9269-4446|https://frl.publisso.de/adhoc/creator/UXVldGdsYXMsIEp1YW4=|https://frl.publisso.de/adhoc/creator/RGVsZ2Fkby1IdWVydGFzLCBBbnRvbmlv|https://frl.publisso.de/adhoc/creator/S2VsbSwgRGV0bGV2IEgu|https://frl.publisso.de/adhoc/creator/SWJhbmV6LCBDYXJsb3M=
1000 Label
1000 Förderer
  1. Junta de Andalucía |
  2. Spanish Ministry of Education and Science |
  3. Alexander von Humboldt Foundation |
1000 Fördernummer
  1. P06-RNM-02362
  2. AP-2002-3721
  3. -
1000 Förderprogramm
  1. -
  2. -
  3. -
1000 Dateien
1000 Förderung
  1. 1000 joinedFunding-child
    1000 Förderer Junta de Andalucía |
    1000 Förderprogramm -
    1000 Fördernummer P06-RNM-02362
  2. 1000 joinedFunding-child
    1000 Förderer Spanish Ministry of Education and Science |
    1000 Förderprogramm -
    1000 Fördernummer AP-2002-3721
  3. 1000 joinedFunding-child
    1000 Förderer Alexander von Humboldt Foundation |
    1000 Förderprogramm -
    1000 Fördernummer -
1000 Objektart article
1000 Beschrieben durch
1000 @id frl:6405006.rdf
1000 Erstellt am 2017-10-13T14:18:19.737+0200
1000 Erstellt von 22
1000 beschreibt frl:6405006
1000 Bearbeitet von 288
1000 Zuletzt bearbeitet Wed Mar 24 14:02:10 CET 2021
1000 Objekt bearb. Wed Mar 24 14:02:10 CET 2021
1000 Vgl. frl:6405006
1000 Oai Id
  1. oai:frl.publisso.de:frl:6405006 |
1000 Sichtbarkeit Metadaten public
1000 Sichtbarkeit Daten public
1000 Gegenstand von

View source