Effects of frugivore impoverishment and seed predators on the recruitment of a keystone palm
Many plant species are threatened as a result of extinction of their large-bodied frugivores all over the world. Additionally, introduced herbivores and seed predators may cause severe pressure on early stages of plant recruitment. We studied the seed dispersal and seed predation of the keystone pal...
| Autor principal: | Fadini, Rodrigo F. |
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| Outros Autores: | Fleury, Marina, Donatti, Camila I., Galetti, Mauro |
| Grau: | Artigo |
| Idioma: | English |
| Publicado em: |
Acta Oecologica
2020
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| Acesso em linha: |
https://repositorio.inpa.gov.br/handle/1/18463 |
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oai:repositorio:1-18463 |
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oai:repositorio:1-18463 Effects of frugivore impoverishment and seed predators on the recruitment of a keystone palm Fadini, Rodrigo F. Fleury, Marina Donatti, Camila I. Galetti, Mauro Evergreen Tree Frugivory Island Recruitment (population Dynamics) Seed Dispersal Seed Predation Anchieta Island Atlantic Forest Brasil Sao Paulo [brazil] South America Aves Euterpe Edulis Turdus Many plant species are threatened as a result of extinction of their large-bodied frugivores all over the world. Additionally, introduced herbivores and seed predators may cause severe pressure on early stages of plant recruitment. We studied the seed dispersal and seed predation of the keystone palm Euterpe edulis on a land-bridge island with a highly impoverished frugivore fauna and overabundant seed predators, and in a continuous Atlantic forest in Brazil. While the diversity of avian seed dispersers and predators was higher on the mainland, the abundance of seed dispersers was 4-fold higher on the island. Turdus flavipes was responsible for 72% and 96% of seeds removed in the island and mainland, respectively. However, the higher density of T. flaviceps on the island did not result in higher seed removal. In fact, seed removal rate was 1.7 times lower there than on the mainland, probably due to the aggressive behavior of the major seed disperser who defend palm fruits. Seed predation, on the other hand, was markedly higher on the island, where nearly 100% of seeds were preyed upon, but only 0.3% on the mainland. As a consequence of higher seed predation the population of E. edulis has few numbers of seedlings and saplings on the island. Therefore, management of the seed predator populations on the island is a key priority for recovering the natural population of this keystone palm and the frugivores that depend on its fruits. © 2008 Elsevier Masson SAS. All rights reserved. 2020-06-15T21:55:21Z 2020-06-15T21:55:21Z 2009 Artigo https://repositorio.inpa.gov.br/handle/1/18463 10.1016/j.actao.2008.10.001 en Volume 35, Número 2, Pags. 188-196 Restrito Acta Oecologica |
| institution |
Instituto Nacional de Pesquisas da Amazônia - Repositório Institucional |
| collection |
INPA-RI |
| language |
English |
| topic |
Evergreen Tree Frugivory Island Recruitment (population Dynamics) Seed Dispersal Seed Predation Anchieta Island Atlantic Forest Brasil Sao Paulo [brazil] South America Aves Euterpe Edulis Turdus |
| spellingShingle |
Evergreen Tree Frugivory Island Recruitment (population Dynamics) Seed Dispersal Seed Predation Anchieta Island Atlantic Forest Brasil Sao Paulo [brazil] South America Aves Euterpe Edulis Turdus Fadini, Rodrigo F. Effects of frugivore impoverishment and seed predators on the recruitment of a keystone palm |
| topic_facet |
Evergreen Tree Frugivory Island Recruitment (population Dynamics) Seed Dispersal Seed Predation Anchieta Island Atlantic Forest Brasil Sao Paulo [brazil] South America Aves Euterpe Edulis Turdus |
| description |
Many plant species are threatened as a result of extinction of their large-bodied frugivores all over the world. Additionally, introduced herbivores and seed predators may cause severe pressure on early stages of plant recruitment. We studied the seed dispersal and seed predation of the keystone palm Euterpe edulis on a land-bridge island with a highly impoverished frugivore fauna and overabundant seed predators, and in a continuous Atlantic forest in Brazil. While the diversity of avian seed dispersers and predators was higher on the mainland, the abundance of seed dispersers was 4-fold higher on the island. Turdus flavipes was responsible for 72% and 96% of seeds removed in the island and mainland, respectively. However, the higher density of T. flaviceps on the island did not result in higher seed removal. In fact, seed removal rate was 1.7 times lower there than on the mainland, probably due to the aggressive behavior of the major seed disperser who defend palm fruits. Seed predation, on the other hand, was markedly higher on the island, where nearly 100% of seeds were preyed upon, but only 0.3% on the mainland. As a consequence of higher seed predation the population of E. edulis has few numbers of seedlings and saplings on the island. Therefore, management of the seed predator populations on the island is a key priority for recovering the natural population of this keystone palm and the frugivores that depend on its fruits. © 2008 Elsevier Masson SAS. All rights reserved. |
| format |
Artigo |
| author |
Fadini, Rodrigo F. |
| author2 |
Fleury, Marina Donatti, Camila I. Galetti, Mauro |
| author2Str |
Fleury, Marina Donatti, Camila I. Galetti, Mauro |
| title |
Effects of frugivore impoverishment and seed predators on the recruitment of a keystone palm |
| title_short |
Effects of frugivore impoverishment and seed predators on the recruitment of a keystone palm |
| title_full |
Effects of frugivore impoverishment and seed predators on the recruitment of a keystone palm |
| title_fullStr |
Effects of frugivore impoverishment and seed predators on the recruitment of a keystone palm |
| title_full_unstemmed |
Effects of frugivore impoverishment and seed predators on the recruitment of a keystone palm |
| title_sort |
effects of frugivore impoverishment and seed predators on the recruitment of a keystone palm |
| publisher |
Acta Oecologica |
| publishDate |
2020 |
| url |
https://repositorio.inpa.gov.br/handle/1/18463 |
| _version_ |
1787141936388243456 |
| score |
11.755432 |