Vertical canopy gradient shaping the stratification of leaf chewer-parasitoid interactions in a temperate forest

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61988987%3A17310%2F18%3AA1901VCM" target="_blank" >RIV/61988987:17310/18:A1901VCM - isvavai.cz</a>

Alternative codes found

RIV/67985939:_____/18:00494090 RIV/62156489:43210/18:43913876

Result on the web

<a href="https://onlinelibrary.wiley.com/doi/abs/10.1002/ece3.4194" target="_blank" >https://onlinelibrary.wiley.com/doi/abs/10.1002/ece3.4194</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/ece3.4194" target="_blank" >10.1002/ece3.4194</a>

Result language

angličtina

Original language name

Vertical canopy gradient shaping the stratification of leaf chewer-parasitoid interactions in a temperate forest

Original language description

Knowledge about herbivores and their parasitoids in forest canopies remains limited, despite their diversity and ecological importance. We investigated a quantitative community dataset of exposed and semiconcealed leaf-chewing larvae and their parasitoids along a vertical canopy gradient in a temperate forest. We analyzed the effect of vertical position among three canopy levels (first [lowest], second [middle], and third [highest]) and tree species on community descriptors (density, diversity, and parasitism rate) and food web structure. We also analyzed vertical patterns in density and parasitism rate between exposed and semiconcealed hosts, and the vertical preference of the most abundant parasitoid taxa in relation to their host specificity. Tree species was an important determinant of all community descriptors and food web structure. Insect density and diversity varied with the vertical gradient, but was only significant for hosts. Both host guilds were most abundant in the second level, but only the density of exposed hosts declined in the third level. Parasitism rate decreased from the first to third level. The overall parasitism rate did not differ between guilds, but semiconcealed hosts suffered lower parasitism in the third level. Less host-specific taxa (Ichneumonidae, Braconidae) operated more frequently lower in the canopy, whereas more host-specific Tachinidae followed their host distribution. The most host-specific Chalcidoidea preferred the third level. Vertical stratification of insect density, diversity, and parasitism rate was most pronounced in the tallest tree species. Therefore, our study contradicts the general paradigm of weak arthropod stratification in temperate forest canopies. However, in the network structure, vertical variation might be superseded by variation among tree species.

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

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OECD FORD branch

10618 - Ecology

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2018

Confidentiality

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

Name of the periodical

Ecology and Evolution

ISSN

2045-7758

e-ISSN

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Volume of the periodical

8

Issue of the periodical within the volume

15

Country of publishing house

GB - UNITED KINGDOM

Number of pages

15

Pages from-to

7297-7311

UT code for WoS article

000442492100005

EID of the result in the Scopus database

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