ECOLOGICAL NICHE MODELS BY TITYUS SERRULATUS LUTZ & MELLO, 1922 AND TITYUS STIGMURUS (THORELL, 1876) (ARACHNIDA: SCORPIONES)

Posted by
  ECOLOGICAL NICHE MODELS BY TITYUS SERRULATUS LUTZ & MELLO, 1922 AND TITYUS STIGMURUS (THORELL, 1876) (ARACHNIDA: SCORPIONES) Summary Scorpions are venomous animals with high plasticity and can serve as models for biogeographical, natural history, and evolutionary studies. Ecological niche modeling can help in understanding essential characteristics of the geographic distribution of species, as well as allowing the prediction of future distribution patterns. Our objective was to model the ecological niche of the scorpion species *Tityus serrulatus * and *Tityus stigmurus* , as well as to identify the variables that influence their distribution in different biomes and their range limits in the Amazon, Caatinga, and Cerrado biomes. Data were obtained from 12 Brazilian arachnological collections. Bioclimatic variables were obtained from the WorldClim database, and niche modeling was implemented using the Maximum Entropy algorithm. The results showed that the Atlantic Forest bio...

Predation of spiders (Araneae) on amphibians and reptiles (Anura, Squamata) in Panama

Posted by

Predation of spiders (Araneae) on amphibians and reptiles (Anura, Squamata) in Panama

Abstract 

The records of spider predation on amphibians or reptiles in Panama are scarce. We present seven cases of this intra-guild predator-prey interaction, with photographic records, thus improving the knowledge in this field for our country with six first reports and one previously documented report. Predación de arañas (Araneae) sobre anfibios y reptiles (Anura, Squamata) en Panamá Resumen: Los registros de depredación de arañas sobre herpetofauna en Panamá son escasos. Aquí presentamos siete casos de esta interacción intragremial depredador-presa, con registros fotográficos, ampliando de esta manera el conocimiento en este ám-bito para nuestro país mediante seis primeros reportes y un reporte previamente documentado.

Fuentes Magallón, Rogemif. (2023). Predation of spiders (Araneae) on amphibians and reptiles (Anura, Squamata) in Panama. Revista Ibérica de Aracnología. 43. via ResearchGate