Publications by authors named "R Adriana Hernandez-Aguilar"
Strontium isotope (Sr/Sr) analysis with reference to strontium isotope landscapes (Sr isoscapes) allows reconstructing mobility and migration in archaeology, ecology, and forensics. However, despite the vast potential of research involving Sr/Sr analysis particularly in Africa, Sr isoscapes remain unavailable for the largest parts of the continent. Here, we measure the Sr/Sr ratios in 778 environmental samples from 24 African countries and combine this data with published data to model a bioavailable Sr isoscape for sub-Saharan Africa using random forest regression.
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- Chimpanzees exhibit advanced spatiotemporal cognition by using memory to locate and revisit underground army ant nests, showing they can track both spatial locations and the timing of food availability.
- Over a five-year study (2018-2022) using camera traps, researchers observed 679 visits to these nests and found that many chimps returned to the nests more frequently than to sites without ants.
- The study indicates that chimpanzees utilize various senses and tools to detect ants, providing new insights into their cognitive strategies for foraging and suggesting that such behaviors may influence the evolution of cognition in primates.
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- Scientists study how animals change to survive in different places, which is really important for understanding biology.
- They looked at chimpanzees, our closest relatives, who live in many types of environments like rainforests and savannahs.
- By examining genetic information from wild chimpanzees, they discovered that some chimps have adapted to fight off malaria in similar ways to humans, showing how important genetic diversity is for endangered animals.
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- Treponematoses are chronic bacterial diseases primarily transmitted through sexual contact or direct interaction, but their epidemiology in wild primates remains largely unexplored due to the difficulty of studying these animals.
- This study focused on critically endangered Western chimpanzees in Senegal, using a non-invasive stool serology method that revealed anti-treponemal antibodies in 13 out of 29 chimpanzees tested.
- The findings highlight the importance of using non-invasive methods for disease surveillance in wildlife, emphasizing the need to assess and manage the risk of treponematosis within chimpanzee populations as part of a comprehensive One Health strategy.
Chimpanzees (Pan troglodytes) are categorized as Endangered by the International Union for Conservation of Nature, and habitat loss due to conversion of land for agriculture is one of the major threats to wild populations of this species. This challenging scenario can lead to negative human-chimpanzee interactions, including crop feeding. Chimpanzees consume crops across their geographical range, although little is known about this behavior in savanna habitats.
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