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Separating effects of species identity and species richness on predation, pathogen dissemination and resistance to invasive species in tropical ant communities

Rizali, Akhmad; Tscharntke, Teja; Buchori, Damayanti and Clough, Yann LU (2018) In Agricultural and Forest Entomology 20(1). p.122-130
Abstract

Ants are abundant in natural and managed tropical ecosystems and can have an impact on herbivorous arthropods, as well as plant pathogens. Although it has been shown for plants that the diversity of communities can result in improved ecosystem functioning, it remains uncertain how the species richness of ants affects multiple ecosystem services and disservices. In the present study, we used experimentally enhanced natural gradients in ant species richness on 100 cacao trees in a plantation aiming to analyze the effect of ant species identity and species richness on predation pressure and the incidence of cacao pod borer (CPB), as well as the spread of black pod disease (BPD). Ant species richness did not significantly improve predation... (More)

Ants are abundant in natural and managed tropical ecosystems and can have an impact on herbivorous arthropods, as well as plant pathogens. Although it has been shown for plants that the diversity of communities can result in improved ecosystem functioning, it remains uncertain how the species richness of ants affects multiple ecosystem services and disservices. In the present study, we used experimentally enhanced natural gradients in ant species richness on 100 cacao trees in a plantation aiming to analyze the effect of ant species identity and species richness on predation pressure and the incidence of cacao pod borer (CPB), as well as the spread of black pod disease (BPD). Ant species richness did not significantly improve predation of experimentally exposed insects, and was not associated with a reduction in the incidence of CPB. However, the incidence of BPD was higher in ant species rich trees, presumably because more ant species were pathogen vectors. The identity of the dominant ant species affected the incidence of CPB and BPD, as well as predation pressure. Although both ant species richness and identity affected ecosystem services and disservices delivered by the ant community, the results of the present study suggest that the identity of dominant ants is the main driver for ecosystem services in these systems.

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organization
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Contribution to journal
publication status
published
subject
keywords
Aggressive species, Anoplolepis gracilipes, Ant predation, Philidris cf. cordata, Species identity, Species richness
in
Agricultural and Forest Entomology
volume
20
issue
1
pages
122 - 130
publisher
Wiley-Blackwell
external identifiers
  • scopus:85019615964
ISSN
1461-9555
DOI
10.1111/afe.12236
language
English
LU publication?
yes
id
e96cebd2-067a-4f26-b5b1-f84f78e86428
date added to LUP
2017-06-09 14:36:28
date last changed
2018-05-29 10:05:42
@article{e96cebd2-067a-4f26-b5b1-f84f78e86428,
  abstract     = {<p>Ants are abundant in natural and managed tropical ecosystems and can have an impact on herbivorous arthropods, as well as plant pathogens. Although it has been shown for plants that the diversity of communities can result in improved ecosystem functioning, it remains uncertain how the species richness of ants affects multiple ecosystem services and disservices. In the present study, we used experimentally enhanced natural gradients in ant species richness on 100 cacao trees in a plantation aiming to analyze the effect of ant species identity and species richness on predation pressure and the incidence of cacao pod borer (CPB), as well as the spread of black pod disease (BPD). Ant species richness did not significantly improve predation of experimentally exposed insects, and was not associated with a reduction in the incidence of CPB. However, the incidence of BPD was higher in ant species rich trees, presumably because more ant species were pathogen vectors. The identity of the dominant ant species affected the incidence of CPB and BPD, as well as predation pressure. Although both ant species richness and identity affected ecosystem services and disservices delivered by the ant community, the results of the present study suggest that the identity of dominant ants is the main driver for ecosystem services in these systems.</p>},
  author       = {Rizali, Akhmad and Tscharntke, Teja and Buchori, Damayanti and Clough, Yann},
  issn         = {1461-9555},
  keyword      = {Aggressive species,Anoplolepis gracilipes,Ant predation,Philidris cf. cordata,Species identity,Species richness},
  language     = {eng},
  number       = {1},
  pages        = {122--130},
  publisher    = {Wiley-Blackwell},
  series       = {Agricultural and Forest Entomology},
  title        = {Separating effects of species identity and species richness on predation, pathogen dissemination and resistance to invasive species in tropical ant communities},
  url          = {http://dx.doi.org/10.1111/afe.12236},
  volume       = {20},
  year         = {2018},
}