Publications by authors named "Yareli Esquer-Garrigos"
Synchrony and alternation in large animal choruses are often viewed as adaptations by which cooperating males increase their attractiveness to females or evade predators. Alternatively, these seemingly composed productions may simply emerge by default from the receiver psychology of mate choice. This second, emergent property hypothesis has been inferred from findings that females in various acoustic species ignore male calls that follow a neighbor's by a brief interval, that males often adjust the timing of their call rhythm and reduce the incidence of ineffective, following calls, and from simulations modeling the collective outcome of male adjustments.
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- The study presents a new Guanidine-based ancient DNA extraction method for analyzing fluid-preserved specimens from museum collections, particularly targeting the genus Orestias, a group of cichlid fish known for their complex taxonomy.
- DNA was successfully extracted from both living and extinct species of Orestias, including the extinct O. cuvieri, using type specimens stored in a museum in Paris, enabling a re-evaluation of the species' relationships.
- The researchers created a detailed molecular phylogeny of Orestias, identifying four distinct clades and redefining their taxonomic relationships, while noting that the mulleri complex appeared to be polyphyletic, indicating multiple evolutionary lineages.
Genetic drift vs. natural selection in a long-term small isolated population: major histocompatibility complex class II variation in the Gulf of California endemic porpoise (Phocoena sinus).
Mol Ecol
October 2007
Although many studies confirm long-term small isolated populations (e.g. island endemics) commonly sustain low neutral genetic variation as a result of genetic drift, it is less clear how selection on adaptive or detrimental genes interplay with random forces.
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