R. Eduardo Palma

Phylogenetic and Functional Biogeographic Approach for Rodent Conservation Across an Environmental Gradient in Chile

Wendy C. Hernández‐Mazariegos, Felipe I. Torres, Reilly N. Brennan, Luis E. Escobar et autres

Aim: Understanding how abiotic factors influence species diversity, evolution and functional patterns of species is crucial for biodiversity conservation and for the management of terrestrial protected areas. We evaluate biogeographic and phylogenetic metrics in rodents to understand biodiversity patterns and improve wildlife …

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Hantavirus infections and small mammal diversity in Chile: No differences between protected and unprotected areas highlight the need for public health strategies

Fernando Torres‐Pérez, Nicolás Ferrada, Roxana Astudillo, Marcela Ferrés et autres

BACKGROUND: Zoonotic viruses, such as Orthohantavirus andesense (ANDV; the causative agent of hantavirus cardiopulmonary syndrome, HCPS), pose significant public health risks at the human-wildlife interface. Understanding their eco-epidemiological dynamics is critical for elucidating the interplay between reservoir hosts, environmental factors, and spillover …

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Rodents of Chile: a brief appraisal of their conservation status and ecological significance

Wendy C. Hernández‐Mazariegos, R. Eduardo Palma, Luis E. Escobar

Rodentia is the most widely distributed, diverse, and numerous order of the class Mammalia. Nevertheless, rodents are poorly studied in terms of their conservation compared to other mammalian orders. Chile has one of the highest rates of extinction risk in the world …

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Comparative skull morphology between the native cat “colocolo” and the domestic cat, based on samples deposited in scientific collections

R. Eduardo Palma

In this study we compared the skull morphology between the colocolo cat (Leopardus colocola) and the domestic cat (Felis catus) based on samples deposited in scientific collections. We observed cranial and mandibular differences between both species that can be identified relatively easy …

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Abrocoma bennettii (Rodentia: Abrocomidae): new records and range extension of its altitudinal distribution

Edvin Riveros-Riffo, Francisco J. González-Pinilla, R. Eduardo Palma

Abstract Bennett’s chinchilla rat ( Abrocoma bennettii ) is an hystricomorph rodent endemic to Chile inhabiting semi-arid and mediterranean regions below 2,000 m above sea level, from northern and central Chile. Using various lines of evidence, including camera traps, skulls, middens, and …

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Molecular systematics of chinchilla rats and taxonomic assessment of the Abrocoma cinerea species complex

Francisco J. González-Pinilla, Claudio Latorre, R. Eduardo Palma

Abstract Chinchilla rats (family Abrocomidae) are hystricomorph rodents primarily inhabiting the central Andes in South America with 8 species in the genus Abrocoma and 2 in Cuscomys. The systematics of this family—relying only on morphological differences—has faced several controversies, particularly in arid-adapted …

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Assessing Ecogeographic Rules in Two Sigmodontine Rodents along an Elevational Gradient in Central Chile

Alejandro Valladares-Gómez, Fernando Torres‐Pérez, R. Eduardo Palma

Bergmann’s and Allen’s rules are two classic ecogeographic rules concerning the physiological mechanisms employed by endotherm vertebrates for heat conservation in cold environments, which correlate with adaptive morphological changes. Thus, larger body sizes (Bergmann’s rule) and shorter appendages and limbs (Allen’s rule) …

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The importance of the Andes in the evolutionary radiation of Sigmodontinae (Rodentia, Cricetidae), the most diverse group of mammals in the Neotropics

Paulo Vallejos-Garrido, Kateryn Pino, Nicolás Espinoza-Aravena, Alexánder Pari et autres

The Andean mountains stand out for their striking species richness and endemicity that characterize many emblematic Neotropical clades distributed in or around these mountains. The radiation of the Sigmodontinae subfamily, the most diversified mammalian group in the Neotropics, has been historically related …

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An updated biogeographic evaluation of endemism and conservation of small mammals from Chile

Wendy C. Hernández‐Mazariegos, Christian M. Ibáñez, R. Eduardo Palma

Abstract Ecological factors such as temperature, precipitation, and vegetation type have been reported to influence biogeographic patterns (e.g., species distribution, richness, and endemism) in mammals. In Chile, these patterns only had been explored in selected mammal groups from certain localities. In this …

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Ecological and evolutionary trends of body size in Pristimantis frogs, the world's most diverse vertebrate genus

Aldemar A. Acevedo, R. Eduardo Palma, Miguel Á. Olalla‐Tárraga

Body size is a key organismal trait. However, the environmental and evolutionary factors that drive body size patterns at the interspecific level remain unclear. Here, we explored these relationships between phenotype-environment using neotropical frogs of Pristimantis, the world's most diverse vertebrate genus. …

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A comprehensive overview of the genetic diversity in Thylamys elegans (Didelphimorphia: Didelphidae): establishing the phylogeographic determinants

Dusan Boric‐Bargetto, Álvaro Zúñiga‐Reinoso, Oscar Inostroza‐Michael, Enrique Rodríguez‐Serrano et autres

Abstract Background For the genus Thylamys, the rivers have been reported as barriers to dispersal, limiting current and historical distribution of its lineages. We hypothesized that the Maipo river has affected the genetic structure of northern and southern lineages of Thylamys elegans, …

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Suggestions to improve the Chilean regulation of manipulation of terrestrial vertebrates in natural populations in the context of scientific research

Guillermo D’Elía, Leonardo Daniel Bacigalupe, Roberto F. Nespolo, Juan C. Opazo et autres

In Chile, the manipulation for scientific purposes of terrestrial vertebrates from natural populations is conducted previous authorization of the Agricultural and Livestock Service and various Bioethics Committees. Obtaining such authorizations is becoming increasingly complex. The procedures do not fit the reality of …