Exogenous application of methyl jasmonate to Ficus hahliana attracts predators of insects along an altitudinal gradient in Papua New Guinea

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F19%3A00505803" target="_blank" >RIV/60077344:_____/19:00505803 - isvavai.cz</a>

Alternative codes found

RIV/60076658:12310/19:43899334

Result on the web

<a href="https://www.cambridge.org/core/journals/journal-of-tropical-ecology/article/exogenous-application-of-methyl-jasmonate-to-ficus-hahliana-attracts-predators-of-insects-along-an-altitudinal-gradient-in-papua-new-guinea/C482A2CA9F5397D8004376F273A84FD9" target="_blank" >https://www.cambridge.org/core/journals/journal-of-tropical-ecology/article/exogenous-application-of-methyl-jasmonate-to-ficus-hahliana-attracts-predators-of-insects-along-an-altitudinal-gradient-in-papua-new-guinea/C482A2CA9F5397D8004376F273A84FD9</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1017/S0266467419000117" target="_blank" >10.1017/S0266467419000117</a>

Result language

angličtina

Original language name

Exogenous application of methyl jasmonate to Ficus hahliana attracts predators of insects along an altitudinal gradient in Papua New Guinea

Original language description

In many plants, the defence systems against herbivores are induced, and may be involved in recruiting the natural enemies of herbivores. We used methyl jasmonate, a well-known inducer of plant defence responses, to manipulate the chemistry of Ficus hahliana along a tropical altitudinal gradient in order to test its ability to attract the enemies of herbivores. We examined whether chemical signals from MeJA-treated trees (simulating leaf damage by herbivores) attracted insect enemies in the complex settings of a tropical forest, and how this ability changes with altitude, where the communities of predators differ naturally. We conducted the research at four study sites (200, 700, 1700 and 2700 m asl) of Mt Wilhelm in Papua New Guinea. Using dummy plasticine caterpillars to assess predation on herbivorous insect, we showed that, on average, inducing plant defences with jasmonic acid in this tropical forest increases predation twofold (i.e. caterpillars exposed on MeJA-sprayed trees were attacked twice as often as caterpillars exposed on control trees). The predation rate on control trees decreased with increasing altitude from 20.2% d-1 at 200 m asl to 4.7% d-1 at 2700 m asl. Predation on MeJA-treated trees peaked at 700 m (52.3% d-1) and decreased to 20.8% d-1 at 2700 m asl. Arthropod predators (i.e. ants and wasps) caused relatively more attacks in the lowlands (200-700 m asl), while birds became the dominant predators above 1700 m asl. The predation pressure from birds and arthropods corresponded with their relative abundances, but not with their species richness. Our study found a connection between chemically induced defence in plants and their attractivity to predators of herbivorous insect in the tropics.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10618 - Ecology

Project

<a href="/en/project/GJ18-23794Y" target="_blank" >GJ18-23794Y: Latitudinal trends in herbivore performance and herbivore damage in hostile and enemy free space</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2019

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal of Tropical Ecology

ISSN

0266-4674

e-ISSN

—

Volume of the periodical

35

Issue of the periodical within the volume

4

Country of publishing house

US - UNITED STATES

Number of pages

8

Pages from-to

157-164

UT code for WoS article

000471023500002

EID of the result in the Scopus database

2-s2.0-85065452249