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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Does biological intimacy shape ecological network structure? A test using a brood pollination mutualism on continental and oceanic islands

Texto completo
Autor(es):
Hembry, David H. [1, 2] ; Raimundo, Rafael L. G. [3, 4, 5] ; Newman, Erica A. [6] ; Atkinson, Lesje [1, 7] ; Guo, Chang [8, 9] ; Guimaraes, Jr., Paulo R. [3] ; Gillespie, Rosemary G. [1]
Número total de Autores: 7
Afiliação do(s) autor(es):
[1] Univ Calif Berkeley, Dept Environm Sci Policy & Management, Berkeley, CA 94720 - USA
[2] Univ Arizona, Dept Ecol & Evolutionary Biol, Tucson, AZ 85721 - USA
[3] Univ Sao Paulo, Dept Ecol, Inst Biociencias, Sao Paulo, SP - Brazil
[4] Univ Fed Paraiba, Ctr Ciencias Aplicadas & Educ, Dept Engn & Meio Ambiente, Lab Ecol Anim, Rio Tinto, PB - Brazil
[5] Univ Fed Paraiba, Ctr Ciencias Aplicadas & Educ, Programa Posgrad Ecol & Monitoramento Ambiental, Rio Tinto, PB - Brazil
[6] Univ Arizona, Sch Nat Resources & Environm, Tucson, AZ - USA
[7] Suny Downstate Med Ctr, New York, NY - USA
[8] Univ Calif Berkeley, Dept Integrat Biol, Berkeley, CA 94720 - USA
[9] Univ Calif San Francisco, Sch Dent, San Francisco, CA - USA
Número total de Afiliações: 9
Tipo de documento: Artigo Científico
Fonte: Journal of Animal Ecology; v. 87, n. 4, SI, p. 1160-1171, JUL 2018.
Citações Web of Science: 2
Resumo

1. Biological intimacy-the degree of physical proximity or integration of partner taxa during their life cycles-is thought to promote the evolution of reciprocal specialization and modularity in the networks formed by co-occurring mutualistic species, but this hypothesis has rarely been tested. 2. Here, we test this ``biological intimacy hypothesis{''} by comparing the network architecture of brood pollination mutualisms, in which specialized insects are simultaneously parasites (as larvae) and pollinators (as adults) of their host plants to that of other mutualisms which vary in their biological intimacy (including ant-myrmecophyte, ant-extrafloral nectary, plant-pollinator and plant-seed disperser assemblages). 3. We use a novel dataset sampled from leafflower trees (Phyllanthaceae: Phyllanthus s. l. {[}Glochidion]) and their pollinating leafflower moths (Lepidoptera: Epicephala) on three oceanic islands (French Polynesia) and compare it to equivalent published data from congeners on continental islands (Japan). We infer taxonomic diversity of leafflower moths using multilocus molecular phylogenetic analysis and examine several network structural properties: modularity (compartmentalization), reciprocality (symmetry) of specialization and algebraic connectivity. 4. We find that most leafflower-moth networks are reciprocally specialized and modular, as hypothesized. However, we also find that two oceanic island networks differ in their modularity and reciprocal specialization from the others, as a result of a supergeneralist moth taxon which interacts with nine of 10 available hosts. 5. Our results generally support the biological intimacy hypothesis, finding that leaf-flower-moth networks (usually) share a reciprocally specialized and modular structure with other intimate mutualisms such as ant-myrmecophyte symbioses, but unlike nonintimate mutualisms such as seed dispersal and nonintimate pollination. Additionally, we show that generalists-common in nonintimate mutualisms-can also evolve in intimate mutualisms, and that their effect is similar in both types of assemblages: once generalists emerge they reshape the network organization by connecting otherwise isolated modules. (AU)

Processo FAPESP: 09/54422-8 - Estrutura e dinâmica coevolutiva em redes de interações mutualísticas
Beneficiário:Paulo Roberto Guimarães Junior
Linha de fomento: Auxílio à Pesquisa - Apoio a Jovens Pesquisadores
Processo FAPESP: 14/21106-4 - Divergência fenotípica e especiação ecológica em mutualismos: efeitos da estrutura espacial e intimidade de interação
Beneficiário:Rafael Luís Galdini Raimundo
Linha de fomento: Bolsas no Brasil - Pós-Doutorado
Processo FAPESP: 11/13054-6 - A seleção natural e a estrutura, dinâmica e diversificação de assembleias de espécies mutualistas
Beneficiário:Rafael Luís Galdini Raimundo
Linha de fomento: Bolsas no Brasil - Doutorado