A5071099668- Amphibian and Reptile Biology
- Animal Behavior and Reproduction
- Species Distribution and Climate Change
- Plant and animal studies
- Insect and Arachnid Ecology and Behavior
- Avian ecology and behavior
- Turtle Biology and Conservation
- Scarabaeidae Beetle Taxonomy and Biogeography
- Wildlife Ecology and Conservation
- Physiological and biochemical adaptations
- Wildlife Conservation and Criminology Analyses
- Bat Biology and Ecology Studies
- Agricultural and Food Production Studies
- Diatoms and Algae Research
- Botany and Geology in Latin America and Caribbean
- Ecology and Vegetation Dynamics Studies
Autonomous University of Tlaxcala
2017-2024
Universidad Nacional Autónoma de México
2012-2024
Universidad de Norteamérica
2021
A new species of treefrog from the genus Charadrahyla is described cloud forest western Sierra Madre del Sur Oaxaca, Mexico. sakbah sp. nov., distinguished rest in by large body size (81.15–85.75 mm and 67.91–73.21 adult females males respectively), axillary membrane, with hypertrophied webbings between toes I II, nuptial excrescences, one enlarged conical tubercle on either side vent, vocal slits absent, sexual dimorphism snout shape dorsal profile (rounded acuminate respectively). The are...
We describe a new species of Plestiodon in the P. brevirostris group from Balsas Basin central Mexico. It is distinguished other by following combination traits: supraoculars four; interparietal enclosed posteriorly parietals; primary temporal present; seventh supralabial usually contacting upper secondary temporal; longitudinal dorsal scale rows around midbody 23-26; Toe-IV lamellae 13-15; limbs not overlapping when adpressed against body; dorsolateral light line extending to level...
Abstract Sexual size dimorphism ( SSD ) evolves because body is usually related to reproductive success through different pathways in females and males. Female strongly correlated with fecundity, while males, mating success. In many lizard species, males are larger than females, whereas others, the sex, suggesting that selection on fecundity has been stronger sexual As placental development or egg retention requires more space within abdominal cavity, it suggested of viviparous lizards have...
The thermal requirements of ectotherms may vary among species due to adaptation different environments. Nevertheless, some these are evolutionarily conserved, leading organisms compensate behaviorally for harsh environmental conditions. High-mountain systems provide temperature gradients that allow studies evolutionary and plastic variation in ecology under natural We evaluated the thermoregulation strategies Sceloporus grammicus Wiegmann, 1828 at three points (2600, 3100, 4150 m above sea...
El Alto Balsas es una región importante para la biodiversidad mexicana por sus altos niveles de recambio taxonómico y riqueza endemismos. Desafortunadamente pérdida hábitat actividades humanas amenaza su conservación. objetivo este trabajo describir aves del Guerrero, a partir datos incidencia especies en 7 tipos entre 2006 2017. Se registraron 209 especies; 53 ellas representan neto (bsim promedio 0.41 ± 0.28). Cincuenta ocho (27.7%) tienen alguna categoría endemismo, lo que constituye las...
Environmental temperature is an important factor that regulates activity and physiological processes ofectotherms. Because sympatric species are exposed to similar thermal niche conditions, closely related couldpresent requirements. This similarity may generate interspecific competition for optimal thermalspace. The ecology of the viviparous lizards Sceloporus lineolateralis S. poinsettii (Sceloporustorquatus groups, respectively) were studied in natural populations Peñón Blanco,Durango,...
Abstract We compile a Mexican insular herpetofaunal checklist to estimate endemism, conservation status, island threats, net taxonomic turnover among six biogeographic provinces belonging the Nearctic and Neotropical regions, relationships between area mainland distance versus species richness. of through performing literature collection review. define status according law, Red List International Union for Conservation Nature, Environmental Vulnerability Scores. determine threat percentages...
We report a new breeding site of Ara militaris mexicanus (Ridway, 1915), Military Macaw, in the state Puebla Alto Balsas river basin, Mexico. The is Cañón Grande area along Nexapa River. Observed temporality and behaviors agree with recorded season this species Central Notably, region has no current designation as protected natural for conservation. recommend collaboration local community to initiate efforts towards designate basin area.
In many animal species, adult females and males often differ in characteristics other than primary sexual traits. Thus, body size tends to be related reproductive success through different pathways males, sex-specific foraging or dispersal strategies, and/or adaptations reduce intersexual trophic competition. As result of these differences, the that conveys maximal fitness differs between sexes, favoring evolution dimorphism. this study, we use an allometric approach evaluate changes...
En este trabajo se describen por primera vez las características morfológicas y térmicas de los nidos lalagartija Aspidoscelis costata. Todos (n= 23) encontraron bajo rocas expuestas a luz solar directa. Lasrocas midieron (Media±1ES) 65.8±3.6 cm largo, 43.7±2 ancho 28.7±3.2 alto. La forma general del nido fueelíptica midió 6.1±0.5 4.4±0.4 2.4±2.4 alto, la profundidad cámara fue 5.98±0.6cm. El número roca en promedio 1.7±0.3, el huevos 6.3±0.5, loshuevos 1.5±0.02 1.1±0.04 pesaron 0.92±0.08 g....
We record Tantilla flavilineata Smith & Burger, 1950, for the first time in state of Puebla, Mexico. It was previously considered endemic to a small region Oaxaca. With this record, we extend known distribution 100 km north-northwestward straight line. also provide scales counts and description coloration life female specimen. The geographic T. appears be restricted mid-elevations various oak woodlands which have been limited area by agriculture. More information on its natural history,...