Génétique des populations de Chrysomela lapponica (Coleoptera :chrysomelidae) en Europe :évolution de la défense des larv es en fonction de leurs plantes-hote

Doctorat en Sciencesinfo:eu-repo/semantics/nonPublishe

Genetic differentiation among European samples of the arctic-alpine leaf beetle, Chrysomela lapponica

SCOPUS: ar.jFLWINinfo:eu-repo/semantics/publishe

A case of zootherapy with the tarantula <it>Brachypelma vagans </it>Ausserer, 1875 in traditional medicine of the Chol Mayan ethnic group in Mexico

Abstract Background In practically every human culture, the use of arthropods as medicinal resources has been reported. In Mexico, the Mayan people mainly use plants but occasionally also animals and minerals in their medicine. This article is the first to report the traditional use of the tarantula Brachypelma vagans by medicine men in the Chol community, an ancient indigenous group that inhabits the southeastern part of Mexico. We also describe the utility of such arachnids in traditional medicine. Methods This study was carried out in different Chol communities in the states of Chiapas and Campeche (southeastern Mexico) from 2003 until 2007. We interviewed the local medicine men, patients and non-Chol people in each village visited to collect information about the rituals involved and the effectiveness of this traditional medicine and also their opinion of this traditional medicine. Results In all independent villages, the people who present an illness called 'aire de tarantula' or tarantula wind with symptoms including chest pain, coughing and asthma, were treated by the medicine man (called 'hierbatero') with a tarantula-based beverage. From village to village, the beverage has a similar base composition but some variations occur in additional ingredients depending on the individual medicine man. Like in all traditional Mayan medicine, the ritual of the ceremony consists of drinking the tarantula-based beverage and this is principally accompanied by chants and burning of incense. Conclusions The recipe of the tarantula-based beverage and the procedure of this ritual ceremony were fairly constant in all the villages visited. Our work shows that despite the tarantula's bad image in several cultures, in others positive use is made of these spiders, as in modern medicine.</p

Chemically mediated burrow recognition in the Mexican tarantula Brachypelma vagans female

International audienc

Apparent influences of host plant distribution on the structure and the genetic variability of local populations of the Purple Clay (Diarsia brunnea).

International audienc

Between introgression events and fragmentation, islands are the last refuge for the American crocodile in Caribbean Mexico.

International audienc

Genetic structure of Mexican lionfish populations in the southwest Gulf of Mexico and the Caribbean Sea.

The recent expansion of the invasive lionfish throughout the Western Hemisphere is one of the most extensively studied aquatic invasions. Molecular studies have improved our understanding of larval dispersal, connectivity, and biogeographical barriers among lionfish populations, but none have included Mexican localities, an important area for the larval dispersal of Pterois volitans through the Western Caribbean and the Gulf of Mexico. Here, we present a genetic analysis of lionfishes collected along Mexican coasts, examining their connectivity with other Caribbean localities (Belize, Cuba, Puerto Rico) and the role of ocean currents on population structure. We collected 213 lionfish samples from seven locations comprising four countries. To evaluate genetic structure, mitochondrial control region and nuclear inter-simple sequence repeat markers were used. We found that lionfish collected along Mexican coasts show a similar haplotype composition (H02 followed by H01 and H04) to other Caribbean locations, and the H03 rare haplotype was not found. Haplotype composition in the southwest Gulf of Mexico suggests a discontinuity between the southern and northern areas of the Gulf of Mexico. The southern area clustered more strongly to the Caribbean region, and this is supported by the complexity of water circulation in the semi-enclosed region of the Gulf of Mexico. Mitochondrial genetic diversity parameters show small values, whereas nuclear markers produce medium to high values. Only nuclear markers highlighted significant genetic differentiation between the southwest Gulf of Mexico and Caribbean region, confirming a phylogeographic break between both regions. Separate analysis of Caribbean locations indicates restricted larval exchange between southern and northern regions of the Mesoamerican Barrier Reef System, potentially in response to regional oceanographic circulation

ISSR (Inter simple Sequence Repeats) as molecular markers to study genetic diversity in tarantulas (Arancae, Mygalomorphae)

International audienc

Accessing cryptic diversity in Neotropical rattlesnakes (Serpentes: Viperidae: Crotalus) with the description of two new species

Carbajal-Márquez, Rubén Alonso, Cedeño-Vázquez, José Rogelio, Martínez-Arce, Arely, Neri-Castro, Edgar, Machkour- M'Rabet, Salima C. (2020): Accessing cryptic diversity in Neotropical rattlesnakes (Serpentes: Viperidae: Crotalus) with the description of two new species. Zootaxa 4729 (4): 451-481, DOI: 10.11646/zootaxa.4729.4.