Disentangling the effects of foliar vs. floral herbivory of leaf-cutting ants on the plant reproductive success of


Journal

Bulletin of entomological research
ISSN: 1475-2670
Titre abrégé: Bull Entomol Res
Pays: England
ID NLM: 2984715R

Informations de publication

Date de publication:
Feb 2020
Historique:
pubmed: 14 6 2019
medline: 25 1 2020
entrez: 14 6 2019
Statut: ppublish

Résumé

Flower and leaf herbivory might cause relevant and negative impacts on plant fitness. While flower removal or damage by florivores produces direct negative effects on plant fitness, folivores affect plant fitness by reducing resource allocation to reproduction. In this study, we examine the effects of both flower and leaf herbivory by leaf-cutting ants on the reproductive success of the shrub species Miconia nervosa (Smith) Triana (Family Melastomataceae) in a fragment of Atlantic Forest in Northeast Brazil. We conducted a randomized block-designed field experiment with nine replicates (blocks), in which three plants per block were assigned to one of the three following treatments: undamaged plants (ant exclusion), leaf-damaged plants (ant exclusion from reproductive organs, but not from leaves), and flower + leaf-damaged plants (no exclusion of ants). We then measured flower production, fruit set, and fruit production. Our results showed that flower + leaf-damaged plants reduced flower production nearly twofold in relation to undamaged plants, while flower set in leaf-damaged plants remained constant. The number of flowers that turned into fruits (i.e., fruit set), however, increased by 15% in flower + leaf-damaged plants, while it slightly decreased in leaf-damaged compared to undamaged plants. Contrastingly, fruit production was similar between all treatments. Taken together, our results suggest a prominent role of ant floral herbivory across different stages of the reproductive cycle in M. nervosa, with no consequences on final fruit production. The tolerance of M. nervosa to leaf-cutting ant herbivory might explain its high abundance in human-modified landscapes where leaf-cutting ants are hyper-abundant.

Identifiants

pubmed: 31190645
pii: S0007485319000294
doi: 10.1017/S0007485319000294
doi:

Types de publication

Comparative Study Journal Article

Langues

eng

Sous-ensembles de citation

IM

Pagination

77-83

Auteurs

T Câmara (T)

Programa de Pós-Graduação em Biologia Vegetal, Universidade Federal de Pernambuco, Av. Prof. Moraes Rego, s/n, Cidade Universitária, 50670-901, Recife, PE, Brazil.

X Arnan (X)

Programa de Pós-Graduação em Biologia Vegetal, Universidade Federal de Pernambuco, Av. Prof. Moraes Rego, s/n, Cidade Universitária, 50670-901, Recife, PE, Brazil.
CREAF, Cerdanyola de Vallès, Catalunya, Spain.

V S Barbosa (VS)

Programa de Pós-Graduação em Biologia Vegetal, Universidade Federal de Pernambuco, Av. Prof. Moraes Rego, s/n, Cidade Universitária, 50670-901, Recife, PE, Brazil.
Centro de Formação de Professores, Universidade Federal de Campina Grande, Rua Sérgio Moreira de Figueiredo, s/n, Casas Populares, CEP: 58900-000, Cajazeiras, Paraíba, Brasil.

R Wirth (R)

Plant Ecology & Systematics, University of Kaiserslautern, PO-Box 3049, 67663 Kaiserslautern, Germany.

L Iannuzzi (L)

Departamento de Zoologia, Universidade Federal de Pernambuco, Av. Prof. Moraes Rego s/no, 50670-901 Recife, PE, Brazil.

I R Leal (IR)

Departamento de Botânica, Universidade Federal de Pernambuco, Av. Prof. Moraes Rego s/no, 50670-901 Recife, PE, Brazil.

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Classifications MeSH