Birds and bats enhance cacao yield despite suppressing arthropod mesopredation
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F23%3A00572697" target="_blank" >RIV/60077344:_____/23:00572697 - isvavai.cz</a>
Alternative codes found
RIV/60076658:12310/23:43907417
Result on the web
<a href="https://esajournals.onlinelibrary.wiley.com/doi/epdf/10.1002/eap.2886" target="_blank" >https://esajournals.onlinelibrary.wiley.com/doi/epdf/10.1002/eap.2886</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/eap.2886" target="_blank" >10.1002/eap.2886</a>
Alternative languages
Result language
angličtina
Original language name
Birds and bats enhance cacao yield despite suppressing arthropod mesopredation
Original language description
Bird- and bat-mediated biocontrol benefits the productivity of tropical commodity crops such as cacao, but the ecological interactions driving these ecosystem services remain poorly understood. Whereas birds and bats prey on herbivorous arthropods, they may also prey on arthropod mesopredators such as ants, with poorly understood consequences for pest biocontrol. We used a full-factorial experiment excluding birds, bats, and ants to assess their effects on (a) the abundance of multiple arthropod groups, (b) predation pressure on arthropods evaluated through artificial sentinel caterpillars, and (c) cacao yield over 1 year in shaded agroforestry systems of native cacao varieties in Peru. Birds and bats increased cacao yield by 118%, which translates in smallholder benefits of ca. US $959 ha(-1) year(-1). Birds and bats decreased predation by ants and other arthropods, but contributed to the control of phytophagous taxa such as aphids and mealybugs. By contrast, ant presence increased the abundance of these sap-sucking insects, with negative impacts for cacao yield. Notably, high abundances of the dominant ant Nylanderia sp., known to attend sap-sucking insects, were associated with lower cacao yield along a distance gradient from the closest forest edge. According to these results, arthropod predation by birds and bats, rather than mesopredation by arthropods, was most responsible for increases in cacao yield. Moving forward, detailed research about their trophic interactions will be necessary to identify the cause of such benefits. Retaining and restoring the large benefits of birds and bats as well as minimizing disservices by other taxa in cacao agroforests can benefit from management schemes that prioritize preservation of shade trees and adjacent forests within agroforestry landscapes.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10618 - Ecology
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Ecological Applications
ISSN
1051-0761
e-ISSN
1939-5582
Volume of the periodical
33
Issue of the periodical within the volume
5
Country of publishing house
US - UNITED STATES
Number of pages
15
Pages from-to
e2886
UT code for WoS article
000993619200001
EID of the result in the Scopus database
2-s2.0-85159896522