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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Synergistic effects of seed disperser and predator loss on recruitment success and long-term consequences for carbon stocks in tropical rainforests

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Author(s):
Culot, Laurence ; Bello, Carolina ; Ferreira Batista, Joao Luis ; Zarate do Couto, Hilton Thadeu ; Galetti, Mauro
Total Authors: 5
Document type: Journal article
Source: SCIENTIFIC REPORTS; v. 7, AUG 9 2017.
Web of Science Citations: 15
Abstract

The extinction of large frugivores has consequences for the recruitment of large-seeded plants with potential lasting effects on carbon storage in tropical rainforests. However, previous studies relating frugivore defaunation to changes in carbon storage ignore potential compensation by redundant frugivores and the effects of seed predators on plant recruitment. Based on empirical data of the recruitment success of a large-seeded hardwood tree species (Cryptocarya mandioccana, Lauraceae) across a defaunation gradient of seed dispersers and predators, we show that defaunation increases both seed dispersal limitation and seed predation. Depending on the level of seed predator loss, plant recruitment is reduced by 70.7-94.9% as a result of the loss of seed dispersers. The loss of large seed predators increases the net seed mortality by 7-30% due to the increased abundance of small granivorous rodents. The loss of large seed dispersers can be buffered by the compensatory effects of smaller frugivores in seed removal, but it is not sufficient to prevent a decrease in plant recruitment. We show that the conservation of both seed predators and dispersers is necessary for the recruitment of large-seeded plants. Since these plants contribute substantially to carbon stocks, defaunation can jeopardize the maintenance of tropical forest carbon storage. (AU)

FAPESP's process: 14/14739-0 - The effect of fragmentation on primate ecological functions
Grantee:Laurence Marianne Vincianne Culot
Support type: Research Grants - Young Investigators Grants
FAPESP's process: 13/22492-2 - Linking defaunation to carbon storage ecosystem services in Atlantic rainforests
Grantee:Laura Carolina Bello Lozano
Support type: Scholarships in Brazil - Doctorate (Direct)
FAPESP's process: 10/16075-1 - Cascading effects of defaunation on seed dispersal process: primate - plant interactions in the Atlantic Rainforest
Grantee:Laurence Marianne Vincianne Culot
Support type: Scholarships in Brazil - Post-Doctorate
FAPESP's process: 14/01986-0 - Ecological consequences of defaunation in the Atlantic Rainforest
Grantee:Mauro Galetti Rodrigues
Support type: Research Projects - Thematic Grants