Phylogenetic trophic specialization: a robust comparison of herbivorous guilds
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F17%3A00480549" target="_blank" >RIV/60077344:_____/17:00480549 - isvavai.cz</a>
Alternative codes found
RIV/60076658:12310/17:43895759
Result on the web
<a href="http://dx.doi.org/10.1007/s00442-017-3980-7" target="_blank" >http://dx.doi.org/10.1007/s00442-017-3980-7</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s00442-017-3980-7" target="_blank" >10.1007/s00442-017-3980-7</a>
Alternative languages
Result language
angličtina
Original language name
Phylogenetic trophic specialization: a robust comparison of herbivorous guilds
Original language description
Resource specialization is a key concept in ecology, but it is unexpectedly difficult to parameterize. Differences in resource availability, sampling effort and abundances preclude comparisons of incompletely sampled biotic interaction webs. Here, we extend the distance-based specialization index (DSI) that measures trophic specialization by taking resource phylogenetic relatedness and availability into account into a rescaled version, DSI*. It is a versatile metric of specialization that expands considerably the scope and applicability, hence the usefulness, of DSI. The new metric also accounts for differences in abundance and sampling effort of consumers, which enables robust comparisons among distinct guilds of consumers. It also provides an abundance threshold for the reliability of the metric for rare species, a very desirable property given the difficulty of assessing any aspect of rare species accurately. We apply DSI* to an extensive dataset on interactions between insect herbivores from four folivorous guilds and their host plants in Papua New Guinean rainforests. We demonstrate that DSI*, contrary to the original DSI, is largely independent of sample size and weakly and non-linearly related with several host specificity measures that do not adjust for plant phylogeny. Thus, DSI* provides further insights into host specificity patterns, moreover, it is robust to the number and phylogenetic diversity of plant species selected to be sampled for herbivores. DSI* can be used for a broad range of comparisons of distinct feeding guilds, geographical locations and ecological conditions. This is a key advance in elucidating the interaction structure and evolution of highly diversified systems.
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
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)
Others
Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Oecologia
ISSN
0029-8549
e-ISSN
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Volume of the periodical
185
Issue of the periodical within the volume
4
Country of publishing house
US - UNITED STATES
Number of pages
9
Pages from-to
551-559
UT code for WoS article
000415027100002
EID of the result in the Scopus database
2-s2.0-85031922963