Publications by authors named "Teo Barracho"
Article Synopsis
- Life-history theory suggests that trying to raise babies can make animals less likely to survive, but we don't fully understand why.
- Scientists studied pelagic cormorants over 16 years to see how the energy they used while raising chicks affected their survival chances.
- They found that most years, energy use didn't seem tied to survival, and older birds used less energy, probably because they’ve learned to do things more efficiently.
Emperor penguins (Aptenodytes forsteri) are under increasing environmental pressure. Monitoring colony size and population trends of this Antarctic seabird relies primarily on satellite imagery recorded near the end of the breeding season, when light conditions levels are sufficient to capture images, but colony occupancy is highly variable. To correct population estimates for this variability, we develop a phenological model that can predict the number of breeding pairs and fledging chicks, as well as key phenological events such as arrival, hatching and foraging times, from as few as six data points from a single season.
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