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Multi-scale mosaics in top-down pest control by ants from natural coffee forests to plantations

Stuber, Moritz and Tack, Ayco J. M. and Zewdie, Beyene and Mendesil, Esayas and Shimales, Tamiru and Ayalew, Biruk and Nemomissa, Sileshi and Sjögren, Jörgen and Sjogren, Jorgen and Vesterinen, Eero and Wezel, Alexander and Hylander, Kristoffer (2021). Multi-scale mosaics in top-down pest control by ants from natural coffee forests to plantations. Ecology. 102 , e03376
[Research article]

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Abstract

While top-down control plays an important role in shaping both natural and agricultural food webs, we lack insights into how top-down control effects vary across spatial scales. We used a multi-scale survey of top-down control of coffee pests and diseases by arboreal ants to examine if colony location creates a small-scale mosaic in top-down control around trees and if the strength of that control varies between sites at the landscape scale. We investigated pest and disease levels on coffee shrubs at different distances from shade trees with and without a Crematogaster spp. ant colony in 59 sites along a coffee management intensity gradient in southwestern Ethiopia. Within sites, ants significantly suppressed herbivory and coffee leaf rust at distances less than 10 m from nesting trees. Top-down control varied between sites, with stronger top-down control of free-feeding herbivory near ant colonies at sites with lower management intensity and stronger top-down control of a skeletonizer at sites with higher canopy cover. We conclude that the strength of top-down control by ants is highly heterogeneous across spatial scales, as a consequence of the biology of the predator at the small scale and herbivore density or changes in herbivore-ant interactions at the landscape scale.

Authors/Creators:Stuber, Moritz and Tack, Ayco J. M. and Zewdie, Beyene and Mendesil, Esayas and Shimales, Tamiru and Ayalew, Biruk and Nemomissa, Sileshi and Sjögren, Jörgen and Sjogren, Jorgen and Vesterinen, Eero and Wezel, Alexander and Hylander, Kristoffer
Title:Multi-scale mosaics in top-down pest control by ants from natural coffee forests to plantations
Series Name/Journal:Ecology
Year of publishing :2021
Volume:102
Article number:e03376
Number of Pages:8
Publisher:WILEY
ISSN:0012-9658
Language:English
Publication Type:Research article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution-Noncommercial-No Derivative Works 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 1 Natural sciences > 106 Biological Sciences (Medical to be 3 and Agricultural to be 4) > Ecology
Keywords:ants, biological pest control, Coffea arabica, coffee leaf rust, Crematogaster sp, Ethiopia, herbivory, Leucoplema dohertyi, Leucoptera sp, scale-dependence
URN:NBN:urn:nbn:se:slu:epsilon-p-112206
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-112206
Additional ID:
Type of IDID
DOI10.1002/ecy.3376
Web of Science (WoS)000656433500001
ID Code:25007
Faculty:S - Faculty of Forest Sciences
NJ - Fakulteten för naturresurser och jordbruksvetenskap
Department:(S) > Dept. of Wildlife, Fish and Environmental Studies
(NL, NJ) > Dept. of Ecology
(S) > Dept. of Ecology
Deposited By: SLUpub Connector
Deposited On:24 Aug 2021 14:23
Metadata Last Modified:24 Aug 2021 14:31

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