Species traits and abundance influence the organization of liana-tree antagonistic interaction

Autor(es)

Sfair, Julia C. ^{[1, 2]} ; Weiser, Veridiana de L. ^[1] ; Martins, Fernando R. ^[1] ; Vidal, Mariana M. ^[3] ; Guimaraes, Jr., Paulo R. ^[3]

Afiliação do(s) autor(es)

^[1] Univ Campinas UNICAMP, Inst Biol, Dept Bot, POB 6109, BR-13083970 Campinas, SP - Brazil

^[2] Univ Fed Pernambuco, Dept Bot, Recife, PE - Brazil

^[3] Univ Sao Paulo, Inst Biosci, Dept Ecol, Sao Paulo, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: AUSTRAL ECOLOGY; v. 43, n. 2, p. 236-241, APR 2018.
• Citações Web of Science: 2

Resumo

The interaction among species can be influenced by neutral processes, in which more abundant species have high effect on the structure of interaction, or can be influenced by trait matching. Despite both variables (abundance and species traits) influencing the interaction of species in mutualistic networks, few studies showed their importance in antagonistic networks. Here, we posed the question: what are the main predictors of the liana-tree interactions: species abundance, biological traits or both? In a savanna woodland fragment in south-eastern Brazil, we sampled lianas and trees in 1 ha, where we recorded the abundance, maximum height and bark roughness of tree species, as well as abundance, maximum diameter and climbing system of liana species. For each species, we calculated their contribution to nestedness (n(i)), which is a measure of network structure, and performed simple linear regressions between n(i) and abundance and species traits. Abundant species contribute more to n(i) than rare species, indicating that neutral processes affect interactions between lianas and trees, probably because lianas are opportunistic and climb trees in their neighbourhood. The only trait related to n(i) was tree height, which can indicate that light availability can have a considerable role on network structure between both growth forms. Therefore, the importance of species abundance and tree height can be related to opportunism of lianas on climbing the most suitable tree in their neighbourhood. (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: 15/24802-4 - A influência da estrutura da paisagem sobre a organização de sistemas de polinização e dispersão de sementes
• Beneficiário: Mariana Morais Vidal
• Linha de fomento: Bolsas no Brasil - Pós-Doutorado
• Processo FAPESP: 07/01649-0 - O papel de trepadeiras na diversidade e na estabilidade de comunidades vegetais
• Beneficiário: Julia Caram Sfair
• Linha de fomento: Bolsas no Brasil - Doutorado