10.5061/DRYAD.GF1VHHMM8
Martin, Thomas E
0000-0002-4028-4867
University of Montana
Life history data for longer-lived tropical songbirds reduce breeding
activity as they buffer impacts of drought
Dryad
dataset
2020
songbirds
tropical rainforest
National Science Foundation
https://ror.org/021nxhr62
DEB-1701672
National Science Foundation
https://ror.org/021nxhr62
IOS-1656120
National Science Foundation
https://ror.org/021nxhr62
DEB-1651283
National Science Foundation
https://ror.org/021nxhr62
DEB-1241041
2020-07-21T00:00:00Z
2020-07-21T00:00:00Z
en
37626 bytes
4
CC0 1.0 Universal (CC0 1.0) Public Domain Dedication
Droughts are expected to increase in frequency and severity with climate
change. Population impacts of such harsh environmental events are
theorized to vary with life history strategies among species. However,
existing demographic models generally do not consider behavioral
plasticity that may modify the impact of harsh events. Here we show that
tropical songbirds in the New and Old World reduced reproduction during
drought, with greater reductions in species with higher average long-term
survival. Large reductions in reproduction by longer-lived species were
associated with higher survival during drought than pre-drought years in
Malaysia, whereas shorter-lived species maintained reproduction and
survival decreased. Behavioral strategies of longer-lived, but not
shorter-lived, species mitigated the effect of increasing drought
frequency on long-term population growth. Behavioral plasticity can buffer
the impact of climate change on populations of some species, and
differences in plasticity among species related to their life histories
are critical for predicting population trajectories.
see methods in paper