Global patterns of interaction specialization in bird-flower networks

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12310%2F17%3A43895434" target="_blank" >RIV/60076658:12310/17:43895434 - isvavai.cz</a>

Alternative codes found

RIV/67985939:_____/17:00478075 RIV/00216208:11310/17:10361609

Result on the web

<a href="http://onlinelibrary.wiley.com/doi/10.1111/jbi.13045/epdf" target="_blank" >http://onlinelibrary.wiley.com/doi/10.1111/jbi.13045/epdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1111/jbi.13045" target="_blank" >10.1111/jbi.13045</a>

Result language

angličtina

Original language name

Global patterns of interaction specialization in bird-flower networks

Original language description

Aim Among the world&apos;s three major nectar-feeding bird taxa, hummingbirds are the most phenotypically specialized for nectarivory, followed by sunbirds, while the honeyeaters are the least phenotypically specialized taxa. We tested whether this phenotypic specialization gradient is also found in the interaction patterns with their floral resources. We compiled interaction networks between birds and floral resources for 79 hummingbird, nine sunbird and 33 honeyeater communities. Interaction specialization was quantified through connectance (C), complementary specialization (H-2), binary (Q(B)) and weighted modularity (Q), with both observed and null-model corrected values. We compared interaction specialization among the three types of bird-flower communities, both independently and while controlling for potential confounding variables, such as plant species richness, asymmetry, latitude, insularity, topography, sampling methods and intensity. Results Hummingbird-flower networks were more specialized than honeyeater-flower networks. Specifically, hummingbird-flower networks had a lower proportion of realized interactions (lower C), decreased niche overlap (greater H-2) and greater modularity (greater Q(B)). However, we found no significant differences between hummingbird- and sunbird-flower networks, nor between sunbird- and honeyeater-flower networks. Main conclusions As expected, hummingbirds and their floral resources have greater interaction specialization than honeyeaters, possibly because of greater phenotypic specialization and greater floral resource richness in the New World. Interaction specialization in sunbird-flower communities was similar to both hummingbird-flower and honeyeater-flower communities. These results suggest a link between interaction specialization and both phenotypic specialization and floral resource richness within bird-flower communities at a global scale.

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

<a href="/en/project/GB14-36098G" target="_blank" >GB14-36098G: Center for tropical biology</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2017

Confidentiality

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

Name of the periodical

Journal of Biogeography

ISSN

0305-0270

e-ISSN

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Volume of the periodical

44

Issue of the periodical within the volume

8

Country of publishing house

GB - UNITED KINGDOM

Number of pages

20

Pages from-to

1891-1910

UT code for WoS article

000406117000020

EID of the result in the Scopus database

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