10.5061/DRYAD.W3R2280N3
Messina, Simone
0000-0001-6034-7450
University of Antwerp
Edwards, David
University of Sheffield
Marasco, Valeria
University of Veterinary Medicine Vienna
Canoine, Virginie
University of Vienna
Cosset, Cindy
University of Sheffield
Tomassi, Suzanne
University of Sheffield
Benedick, Suzan
Universiti of Malaysia Sabah
Eens, Marcel
University of Antwerp
Costantini, David
Musée National d'Histoire Naturelle
Glucocorticoids link forest type to local abundance in tropical birds
Dryad
dataset
2020
macrophysiology
stress physiology
selective logging
forest disturbance
understory bird
tropical rainforest
National Museum of Natural History
https://ror.org/03wkt5x30
Research Foundation - Flanders
https://ror.org/03qtxy027
V409218N,1140117N
European Molecular Biology Organization
https://ror.org/04wfr2810
7470
European Commission
https://ror.org/00k4n6c32
704582
French National Centre for Scientific Research
https://ror.org/02feahw73
University of Antwerp
https://ror.org/008x57b05
2020-05-26T00:00:00Z
2020-05-26T00:00:00Z
en
https://doi.org/10.1111/1365-2435.13586
41633 bytes
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CC0 1.0 Universal (CC0 1.0) Public Domain Dedication
Selective logging is a major driver of environmental changes in the
tropics. Recently, there has been increasing interest in understanding
which traits make bird species resilient or vulnerable to such changes.
Physiological stress mediated by the steroid hormone corticosterone (CORT)
might underlie changes in local abundance of species because it regulates
a range of body functions and behaviours to maintain homeostasis in
changing environments. We conducted a three-year study to assess: (i) the
variation in CORT levels in feathers (where CORT is deposited during the
moult) of ten understory bird species across both unlogged old-growth
forest and selectively logged forest in Borneo, (ii) how this variation is
associated with within-year variation in population abundance between
forest types, and (iii) whether the difference in feather CORT (fCORT)
between co-specific populations living in unlogged and logged forests in
one year is related with their difference in population abundance the
following year. We used effect size estimates to measure standardized
magnitude and direction of fCORT changes between unlogged and selectively
logged forest. We found small to large effect sizes, indicating large
among species variation in physiological acclimatization to changes in
forest conditions. In 2016 and 2018, species with relatively higher fCORT
in unlogged forest were relatively more abundant in logged forest in the
same year; in 2017, species with relatively higher fCORT in logged forest
were relatively more abundant in logged forest. Importantly, we found that
for a given species, the difference in fCORT at year (x) between unlogged
and logged forests was negatively related with a difference in its local
abundance between the two forest types in the following year (x+1). Our
results point to glucocorticoid hormones as potential mediators of
carry-over effects on population abundance due to direct and indirect
effects of silvicultural practices in tropical forests of Borneo,
suggesting fCORT as a potential marker of population changes.