Institute Ecologia Ac Carretera Antigua A Coatepec

El Barrancón del Tío Blas (El Barrancón), Mexico

Institute Ecologia Ac Carretera Antigua A Coatepec

El Barrancón del Tío Blas (El Barrancón), Mexico
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Santiago-Alarcon D.,Albert Ludwigs University of Freiburg | Santiago-Alarcon D.,Institute Ecologia Ac Carretera Antigua A Coatepec | Havelka P.,Staatliches Museum fur Naturkunde | Pineda E.,Institute Ecologia Ac Carretera Antigua A Coatepec | And 2 more authors.
Parasitology | Year: 2013

Culicoides vectors can transmit a diverse array of parasites and are globally distributed. We studied feeding preferences and seasonal variation of Culicoides (Diptera: Ceratopogonidae) vectors in an urban forest of Germany to determine whether humans living nearby are readily exposed to vector-borne parasites from wild animals. We used a fragment of the mtDNA COI gene to identify hosts from blood meals. We amplified a fragment of the mtDNA cyt b to detect haemosporidian infections in Culicoides abdomens and thoraxes. We detected a total of 22 Culicoides species. Fifty-eight blood meals (84%) were from humans, 10 from birds, and one from livestock. We found Culicoides kibunensis (considered ornithophilic) with 29 human blood meals. Host generalist Culicoides festivipennis and Culicoides obsoletus had 14 human blood meals. Culicoides clastrieri and Culicoides semimaculatus fed on birds; previously humans were their only known host. Six thoraxes and three abdomens were infected with either Haemoproteus pallidulus or Haemoproteus parabelopolskyi. There were changes in Culicoides community structure across months. Culicoides pictipennis was the dominant species during spring, C. kibunensis and C. clastrieri were dominant during summer, and C. obsoletus was dominant by early autumn. All dominant species were generalists feeding on birds, livestock and humans. Our results indicate that humans can serve as a blood source for dominant Culicoides species instead of the normal wild animal hosts in urban areas. © Cambridge University Press 2013.

Posada R.H.,Institute Ecologia Ac Carretera Antigua A Coatepec | Sanchez de Prager M.,National University of Colombia | Heredia-Abarca G.,Institute Ecologia Ac Carretera Antigua A Coatepec | Sieverding E.,University of Hohenheim
Agroforestry Systems | Year: 2016

Arbuscular mycorrhizal fungi (AMF) are essential for growth of coffee plants in acidic and phosphate deficient soils in Central and South America. We investigated the species richness of Glomeromycotean fungi in 9–13 years old coffee plantations in Colombia and Mexico. Fungal species richness was related to physical and chemical soil factors, soil aggregate stability, and farm management practices. Using morphological spore characteristics 85 AMF species were found. AMF species similarity within the plantations was 62–73 %, and the most regularly AMF species found in both countries were: Acaulospora mellea, Acaulospora spinosa, Ambispora fennica, Diversispora aurantia, Dominikia aurea, Glomus brohultii, Rhizoglomus clarum and Rhizoglomus intraradices. In both countries species richness was differently influenced by agronomic management intensity and soil parameter. In Colombia, where soils were more fertile with higher organic matter and soil pH than in Mexico, soil parameter explained the variations in species diversity, while in Mexico, agronomic management intensities explained the variations in species richness among sites. Soil aggregate stability slightly explains the AMF species richness in Colombia and Mexico. It can be concluded that the Glomeromycotean species richness is very high in older coffee plantations in Colombia and Mexico, and that agronomic inputs have positive effects on species richness in very acidic soils with lower organic matter contents, while in more fertile soils like in Colombia, soil parameter define more the AMF richness. © 2016 Springer Science+Business Media Dordrecht

PubMed | Institute Ecologia Ac Carretera Antigua A Coatepec, Urbino University and Federal University of Mato Grosso
Type: | Journal: ZooKeys | Year: 2017

Recent intensive samplings carried out across the mountainous regions of El Pinal (Puebla, Mexico) have provided new insights into the main environmental factors that affect the geographic distribution of the scarabaeinae beetles of the Trans-Mexican Volcanic Belt above 2500 m a.s.l. This study is part of an ongoing project investigating the diversity and biogeography of copro-necrophagous beetles (Scarabaeinae, Aphodiinae, Geotrupinae and Silphidae) in the easternmost areas of the Trans-Mexican Volcanic Belt. Previous experience allows us to propose a series of predictions that we expect will provide possible explanations for current distribution patterns observed in Scarabaeinae and other groups of insects found in the Trans-Mexican Volcanic Belt. This mountain range has a primarily biogeographic importance, limiting the Mexican High Plateau in the South and connecting the western and eastern Sierra Madre mountain chains, which are considered the most important routes for dispersal of mountain fauna of northern origin. The taxonomic and biogeographic study of the species collected so far in El Pinal (including

Hernandez-Cruz J.,National Polytechnic Institute of Mexico | Moron M.A.,Institute Ecologia Ac Carretera Antigua A Coatepec | Sanchez-Garcia J.A.,National Polytechnic Institute of Mexico
Southwestern Entomologist | Year: 2014

In Ozuluama region in northern Veracruz, Mexico, 1,888 specimens of the genus Phyllophaga were collected. Six species were recognized from three subgenera and five species groups. The most abundant species was Phyllophaga trichodes (Bates). The numbers of P. crinita (Burmeister), P. xkumuka Morón, and P. temora Saylor are new state records.

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