Publikation: Seed dispersal by Galápagos tortoises
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Datum
2012
Autor:innen
Blake, Stephen
Cabrera, Fredy
Guezou, Anne
Silva, Miriam
Sadeghayobi, Elham
Yackulic, Charles B.
Jaramillo, Petricia
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Journal of Biogeography. 2012, 39(11), pp. 1961-1972. ISSN 0305-0270. eISSN 1365-2699. Available under: doi: 10.1111/j.1365-2699.2011.02672.x
Zusammenfassung
Aim: Large-bodied vertebrates often have a dramatic role in ecosystem function through herbivory, trampling, seed dispersal and nutrient cycling. The iconic Galápagos tortoises (Chelonoidis nigra) are the largest extant terrestrial ectotherms, yet their ecology is poorly known. Large body size should confer a generalist diet, benign digestive processes and long-distance ranging ability, rendering giant tortoises adept seed dispersers. We sought to determine the extent of seed dispersal by Galápagos tortoises and their impact on seed germination for selected species, and to assess potential impacts of tortoise dispersal on the vegetation dynamics of the Galápagos.
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Fachgebiet (DDC)
570 Biowissenschaften, Biologie
Schlagwörter
Chelonoidis nigra, digesta retention time, Galápagos, germination, giant tortoise, GPS telemetry, island ecology, megaherbivore, reptiles, seed dispersal
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BLAKE, Stephen, Martin WIKELSKI, Fredy CABRERA, Anne GUEZOU, Miriam SILVA, Elham SADEGHAYOBI, Charles B. YACKULIC, Petricia JARAMILLO, 2012. Seed dispersal by Galápagos tortoises. In: Journal of Biogeography. 2012, 39(11), pp. 1961-1972. ISSN 0305-0270. eISSN 1365-2699. Available under: doi: 10.1111/j.1365-2699.2011.02672.xBibTex
@article{Blake2012dispe-21949,
year={2012},
doi={10.1111/j.1365-2699.2011.02672.x},
title={Seed dispersal by Galápagos tortoises},
number={11},
volume={39},
issn={0305-0270},
journal={Journal of Biogeography},
pages={1961--1972},
author={Blake, Stephen and Wikelski, Martin and Cabrera, Fredy and Guezou, Anne and Silva, Miriam and Sadeghayobi, Elham and Yackulic, Charles B. and Jaramillo, Petricia}
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