Publications by authors named "R A Aragon-Pech"
Article Synopsis
- Heatwaves are becoming more frequent, but their nonlethal effects on tropical insects, especially stingless bees, haven't been fully studied.
- This study is the first to look at how sublethal heat stress during development affects the size, shape, immune responses, and lifespans of different castes (workers, gynes, males) in stingless bees.
- Results showed that heat-stressed individuals were smaller and had reduced immune responses, particularly males; heat stress also led to earlier foraging and shorter lifespans in workers, raising concerns about colony fitness and the future of stingless bee species.
Cuticular hydrocarbon (CHCs) variation has been detected in various insect taxa, but the potential contribution of cuticular compounds for analyzing intraspecific diversity at the population level has been little explored. Here we assess for the first time intraspecific variation in the CHC profile of stingless bees, using the species Melipona beecheii and Nannotrigona perilampoides. The objective is determining whether intraspecific variation can be useful for population identification.
View Article and Find Full Text PDFVirginia opossum, , is a synanthropic mammal associated with peridomestic areas of Yucatán, However, little is known about the gastrointestinal parasite infections of this species. The infection prevalence, mean abundance and mean intensity of eggs and oocysts of gastrointestinal parasites, in opossums captured in the peridomestic areas were estimated in six rural localities of Yucatán, Mexico. Eighty-four faecal samples were processed by flotation technique.
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