Species richness of birds along a complete rain forest elevational gradient in the tropics: Habitat complexity and food resources matter

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F19%3A00502000" target="_blank" >RIV/60077344:_____/19:00502000 - isvavai.cz</a>

Alternative codes found

RIV/60076658:12310/19:43899142

Result on the web

<a href="https://onlinelibrary.wiley.com/doi/full/10.1111/jbi.13482" target="_blank" >https://onlinelibrary.wiley.com/doi/full/10.1111/jbi.13482</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1111/jbi.13482" target="_blank" >10.1111/jbi.13482</a>

Result language

angličtina

Original language name

Species richness of birds along a complete rain forest elevational gradient in the tropics: Habitat complexity and food resources matter

Original language description

Aim We examined whether the available surface area, temperature, or habitat complexity (foliage height diversity index) determine species richness of birds (and species richness of individual feeding guilds) along a complete forest elevational gradient.Location Elevational gradient (200-3,700 m) of Mt Wilhelm (4,509 m a.s.l.), Central Range, Papua New Guinea. Taxon Birds. Methods We collected data on bird communities at eight sites (500 m elevational increment) during three surveys encompassing both dry and wet seasons over a 2-year period. We used point counts, mist-netting, and random walks throughout a standardized area. Results Birds displayed a monotonic decline in species richness (from 113 to 35 bird species) with increasing elevation, and a nested pattern of species loss. The observed patterns were best explained by habitat complexity for the insectivores, frugivore-insectivores, and total number of bird species. The available surface area was the best predictor for frugivorous birds. The mean temperature had a high correlation with species richness of all birds and gave the best fit of species richness for insectivore-nectarivores and pure nectarivores. The biomass of insectivorous birds correlated with the biomass of arthropods. We ruled out the possibility that the elevational pattern observed in birds could be driven by a single phylogenetic radiation. Main conclusions We observed species richness patterns correlate well with habitat complexity and mean temperature, but mean temperature was not ranked as high as expected. Our results thus challenge the generally expected high importance of temperature as a regulator of water availability, production, and biochemical process that influence species richness, and underscore the importance of vegetation structure and the food resources as the driver of observed species richness.

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 Biogeography

ISSN

0305-0270

e-ISSN

—

Volume of the periodical

46

Issue of the periodical within the volume

2

Country of publishing house

US - UNITED STATES

Number of pages

12

Pages from-to

279-290

UT code for WoS article

000458273300003

EID of the result in the Scopus database

2-s2.0-85060135888