Please use this identifier to cite or link to this item: http://hdl.handle.net/1893/8749
Appears in Collections:Biological and Environmental Sciences Journal Articles
Peer Review Status: Refereed
Title: Simulated seed predation reveals a variety of germination responses of neotropical rain forest species
Authors: Vallejo-Marin, Mario
Dominguez, Cesar A
Dirzo, Rodolfo
Contact Email: mario.vallejo@stir.ac.uk
Keywords: Los Tuxtlas
nonlethal predation
seed germination
simulated seed predation
tropical rain forest
Issue Date: Mar-2006
Publisher: Botanical Society of America
Citation: Vallejo-Marin M, Dominguez CA & Dirzo R (2006) Simulated seed predation reveals a variety of germination responses of neotropical rain forest species, American Journal of Botany, 93 (3), pp. 369-376.
Abstract: Seed predation, an omnipresent phenomenon in tropical rain forests, is an important determinant of plant recruitment and forest regeneration. Although seed predation destroys large amounts of the seed crop of numerous tropical species, in many cases individual seed damage is only partial. The extent to which partial seed predation affects the recruitment of new individuals in the population depends on the type and magnitude of alteration of the germination behavior of the damaged seeds. We analyzed the germination dynamics of 11 tropical woody species subject to increasing levels of simulated seed predation (0–10% seed mass removal). Germination response to seed damage varied considerably among species but could be grouped into four distinct types: (1) complete inability to germinate under damage ≥1%, (2) no effect on germination dynamics, (3) reduced germination with increasing damage, and (4) reduced final germination but faster germination with increasing damage. We conclude that partial seed predation is often nonlethal and argue that different responses to predation may represent different proximal mechanisms for coping with partial damage, with potential to shape, in the long run, morphological and physiological adaptations in tropical, large-seeded spec
Type: Journal Article
URI: http://hdl.handle.net/1893/8749
DOI Link: http://dx.doi.org/10.3732/ajb.93.3.369
Rights: Publisher policy allows this work to be made available in this repository. Published in American Journal of Botany by Botanical Society of America. The original publication is available at http://www.amjbot.org/content/93/3/369
Affiliation: Biological and Environmental Sciences
Universidad Nacional Autonoma de Mexico
National Autonomous University of Mexico

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