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Do birds bias measurements of seed rain?

Published online by Cambridge University Press:  01 June 2012

J. Leighton Reid ,
Karisa N. Katsuki  and
Karen D. Holl
J. Leighton Reid*
Affiliation:
Environmental Studies Department, University of California, Santa Cruz, CA 95064, USA
Karisa N. Katsuki
Affiliation:
Environmental Studies Department, University of California, Santa Cruz, CA 95064, USA
Karen D. Holl
Affiliation:
Environmental Studies Department, University of California, Santa Cruz, CA 95064, USA
*
1Corresponding author. Email: j.leighton.reid@gmail.com
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Extract

Accurate measurements of seed rain are important for understanding tree reproduction (Greene & Johnson 1994), forest regeneration (Cole et al. 2010, Cubiña & Aide 2001, Howe et al. 2010, Zahawi & Augspurger 2006), forest ecology (Muller-Landau et al. 2008, Terborgh et al. 2011) and maintenance of community diversity (Harms et al. 2000). Seed traps generally consist of a bucket or net of a fixed area suspended 0.3–1 m above the ground, and seeds are typically collected once or twice per month. An implicit assumption of all seed-rain studies is that traps do not influence seed dispersal. Should birds perch on and defecate seeds into seed traps, seed abundance will be overestimated. This behaviour could produce a directional bias if birds perch on seed traps in one habitat more than others. To our knowledge, no study has considered this potential bias.

Keywords

abandoned pasturebirdsCosta Ricademonic intrusionecological restorationforest ecologyseed dispersaltropical forest
Type
Short Communication
Information
Journal of Tropical Ecology , Volume 28 , Issue 4 , July 2012 , pp. 421 - 422
Copyright
Copyright © Cambridge University Press 2012

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References

LITERATURE CITED

AIDE, T. M. & CAVELIER, J. 1994. Barriers to lowland tropical forest restoration in the Sierra Nevada de Santa Marta, Colombia. Restoration Ecology 2:219–229.CrossRefGoogle Scholar
AMERICAN ORNITHOLOGISTS’ UNION. 1998. Check list of North American birds. (Seventh edition). American Ornithologists’ Union, Washington DC. 829 pp.Google Scholar
COLE, R. J., HOLL, K. D. & ZAHAWI, R. A. 2010. Seed rain under tree islands planted to restore degraded lands in a tropical agricultural landscape. Ecological Applications 20:1255–1269.CrossRefGoogle Scholar
CUBIÑA, A. & AIDE, T. M. 2001. The effect of distance from forest edge on seed rain and soil seed bank in a tropical pasture. Biotropica 33:260–267.CrossRefGoogle Scholar
GREENE, D. F. & JOHNSON, E. A. 1994. Estimating the mean annual seed production of trees. Ecology 75:642–647.CrossRefGoogle Scholar
HARMS, K. E., WRIGHT, S. J., CALDERON, O., HERNANDEZ, A. & HERRE, E. A. 2000. Pervasive density-dependent recruitment enhances seedling diversity in a tropical forest. Nature 404:493–495.CrossRefGoogle Scholar
HOLL, K. D. 1999. Factors limiting tropical rain forest regeneration in abandoned pasture: Seed rain, seed germination, microclimate, and soil. Biotropica 31:229–242.CrossRefGoogle Scholar
HOWE, H., URINCHO-PANTALEON, Y., DE LA PEÑA-DOMENE, M. & MARTÍNEZ-GARZA, C. 2010. Early seed fall and seedling emergence: precursors to tropical restoration. Oecologia 164:731–740.CrossRefGoogle ScholarPubMed
MULLER-LANDAU, H. C., WRIGHT, S. J., CALDERON, O., CONDIT, R. & HUBBELL, S. P. 2008. Interspecific variation in primary seed dispersal in a tropical forest. Journal of Ecology 96:653–667.CrossRefGoogle Scholar
STEVENSON, P. R., LINK, A. & RAMIREZ, B. H. 2005. Frugivory and seed fate in Bursera inversa (Burseraceae) at Tinigua Park, Colombia: implications for primate conservation. Biotropica 37:431–438.CrossRefGoogle Scholar
TERBORGH, J., ALVAREZ-LOAYZA, P., DEXTER, K., CORNEJO, F. & CARRASCO, C. 2011. Decomposing dispersal limitation: limits on fecundity or seed distribution? Journal of Ecology 99:935–944.CrossRefGoogle Scholar
WIJDEVEN, S. M. J. & KUZEE, M. E. 2000. Seed availability as a limiting factor in forest recovery processes in Costa Rica. Restoration Ecology 8:414–424.CrossRefGoogle Scholar
WÜTHERICH, D., AZÓCAR, A., GARCÍA-NUÑEZ, C. & SILVA, J. F. 2001. Seed dispersal in Palicourea rigida, a common treelet species from neotropical savannas. Journal of Tropical Ecology 17:449–458.CrossRefGoogle Scholar
ZAHAWI, R. A. & AUGSPURGER, C. K. 2006. Tropical forest restoration: tree islands as recruitment foci in degraded lands of Honduras. Ecological Applications 16:464–478.CrossRefGoogle ScholarPubMed
ZIMMERMAN, J. K., PASCARELLA, J. B. & AIDE, T. M. 2000. Barriers to forest regeneration in an abandoned pasture in Puerto Rico. Restoration Ecology 8:350–360.CrossRefGoogle Scholar