Comparing impacts of fragmentation on bird functional and phylogenetic diversity in primary and secondary rainforests

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F25%3A00636346" target="_blank" >RIV/60077344:_____/25:00636346 - isvavai.cz</a>

Alternative codes found

RIV/60076658:12310/25:43909866

Result on the web

<a href="https://besjournals.onlinelibrary.wiley.com/doi/epdf/10.1111/1365-2664.70083" target="_blank" >https://besjournals.onlinelibrary.wiley.com/doi/epdf/10.1111/1365-2664.70083</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1111/1365-2664.70083" target="_blank" >10.1111/1365-2664.70083</a>

Result language

angličtina

Original language name

Comparing impacts of fragmentation on bird functional and phylogenetic diversity in primary and secondary rainforests

Original language description

Avian biodiversity in tropical rainforests is threatened by increasing intensity of anthropogenic disturbances. Secondary forest birds can maintain ecosystem services that are otherwise lost with disappearing primary forests. However, the stability of these services can be impeded by area effects reducing bird diversity.nnWe compared the effects of fragmentation on avian ecosystem functions in both primary and secondary forests. We performed point count surveys in both continuous rainforests, as well as isolated forest fragments in lowland Papua New Guinea. We combined taxonomic diversity with functional and phylogenetic indices and patterns of individual functional traits.nnBird taxonomic diversity was lower in secondary forests and decreased considerably due to fragmentation. In contrast, functional diversity was not affected by fragmentation but increased in secondary forests. Phylogenetic diversity increased in all human-modified forests.nnDecreases in taxonomic diversity stemmed from the loss of forest-dependent birds. In contrast, decreases in functional and phylogenetic diversity were prevented by the introduction of open-habitat species. This was demonstrated by shifts in trait composition, as bird phenotypes reliant on forest continuity became less prevalent. Specifically, we recorded a proportional decrease in insectivory and ground foraging, and an increase in nectarivory and dispersal ability. Increased dispersal ability was also observed in secondary forests, where it was associated with shifts towards frugivory and canopy foraging. Increases in phylogenetic diversity were likely amplified by high phylogenetic dispersion of introduced habitat generalists. nnPolicy implications. We show that compensatory patterns of species introduction fail to account for the loss of ecosystem functions due to the decline of forest-dependent birds. As such, conservation policies should be targeted towards species that share traits associated with disturbance sensitivity, such as insectivory, ground foraging and low dispersal ability. This could prevent biodiversity loss in poorly explored tropical landscapes in the early stages of large-scale deforestation.

Czech name

—

Czech description

—

Type

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

CEP classification

—

OECD FORD branch

10619 - Biodiversity conservation

Project

<a href="/en/project/GM22-17593M" target="_blank" >GM22-17593M: Ecological meltdown in the absence of birds and spiders?</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2025

Confidentiality

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

Name of the periodical

Journal of Applied Ecology

ISSN

0021-8901

e-ISSN

1365-2664

Volume of the periodical

62

Issue of the periodical within the volume

7

Country of publishing house

US - UNITED STATES

Number of pages

11

Pages from-to

1674-1684

UT code for WoS article

001502010100001

EID of the result in the Scopus database

2-s2.0-105007548193