Molecular systematics of small-eared shrews (Soricomorpha, Mammalia) within Cryptotis mexicanus species group from Mesoamérica

Guevara, Lázaro; Cervantes, Fernando A.

doi:10.1007/s13364-013-0165-6

Cited by 25 publications

(24 citation statements)

References 35 publications

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“…2). Specimens of each species clustered together, and the resulting genetic relationships resemble to some degree phylogenetic relationships hypothesized on the basis of morphology and mitochondrial DNA (see Woodman 2005;Guevara and Cervantes 2013). The new species is genetically closest to C. mayensis, averaging a genetic distance of 5.7% with nodal support value of 100.…”

Section: Resultsmentioning

confidence: 67%

“…S1). We used the short-tailed shrew, Blarina brevicauda, as the outgroup because Blarina is the sister genus to Cryptotis (Ohdachi et al 2006;Guevara and Cervantes 2013). A neighbor-joining tree based on uncorrected genetic distances (p-distance) was created using MEGA 5 (Tamura et al 2011) and was bootstrapped with 1,000 replicates to provide percent bootstrap values for each branch.…”

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confidence: 99%

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A new species of small-eared shrew (Mammalia, Eulipotyphla,Cryptotis) from the Lacandona rain forest, Mexico

et al. 2014

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The diversity and distribution of mammals in the American tropics remain incompletely known. We describe a new species of small-eared shrew (Soricidae, Cryptotis) from the Lacandona rain forest, Chiapas, southern Mexico. The new species is distinguished from other species of Cryptotis on the basis of a unique combination of pelage coloration, size, dental, cranial, postcranial, and external characters, and genetic distances. It appears most closely related to species in the Cryptotis nigrescens species group, which occurs from southern Mexico to montane regions of Colombia. This discovery is particularly remarkable because the new species is from a lowelevation habitat (approximately 90 m), whereas most shrews in the region are restricted to higher elevations, typically . 1,000 m. The only known locality for the new shrew is in one of the last areas in southern Mexico where relatively undisturbed tropical vegetation is still found. The type locality is protected by the Mexican government as part of the Yaxchilán Archaeological Site on the border between Mexico and Guatemala.

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Section: Resultsmentioning

confidence: 67%

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confidence: 99%

A new species of small-eared shrew (Mammalia, Eulipotyphla,Cryptotis) from the Lacandona rain forest, Mexico

et al. 2014

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“…Como lo indican estudios previos y como lo sugiere la distribución fragmentada en diversas especies de los géneros Cryptotis y Sorex (Apéndice 1), aún se requieren evaluaciones taxonómicas para esclarecer el límite taxonómico entre algunas especies (Esteva et al 2010;Guevara y Cervantes 2014). Para el caso de la familia Talpidae ha habido un escaso conocimiento generado durante las últimas décadas y se conoce poco sobre el estado de las poblaciones (Ceballos y Navarro 1991), por lo que el paso inmediato a seguir es poner en claro la situación actual de las poblaciones de las tres especies de topo.…”

Section: Discusionunclassified

“…Los estudios recientes sobre eulipotiflos mexicanos incluyen la revalidación y descripción de especies (Yates y Salazar-Bravo 2005;Carraway 2007;Guevara et al 2014b) y estudios sobre taxonomía y sistemática filogenética (Ramírez-Pulido et al 2004, 2005Esteva et al 2010;Woodman 2010;Guevara y Cervantes 2014). Estos esfuerzos han marcado el inicio de la utilización integral de los datos obtenidos en acervos biológicos con información geográfica que están siendo manejados para incrementar nuestro conocimiento sobre taxonomía y aspectos ecológicos y evolutivos, que repercuten en la planeación de estrategias de conservación (Graham et al 2004;, 2005.…”

Section: Introductionunclassified

Riqueza, distribución y conservación de los topos y las musarañas (Mammalia, Eulipotyphla) de México

Guevara¹,

Cervantes²,

Sánchez‐Cordero³

2015

Therya

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Introduction: Moles (Talpidae) and shrews (Soricidae) are the only representatives of the order Eulipotyphla in Mexico and they account for 7 % of mammals in the country. Despite their richness, even basic aspects such as their species-level taxonomic knowledge and geographical distribution are still uncertain. The scarcity of such information implies that the biology and conservation status of eulipotyphlans are also unclear or unevaluated, which involves a serious impediment to the design of management strategies for a group that tends to be susceptible to climate change and impacts of anthropogenic habitat transformation. Here, we performed a comprehensive assessment of the current state of knowledge and threats to the survival of Mexican moles and shrews using information from natural history collections and spatial environmental data.

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“…These species are partitioned among three of the five traditional, morphologically defined species groups (Choate 1970;Timm 1993, 1999) that appear to be distinct phylogenetic clades within the genus (He et al 2015): Cryptotis gracilis (Miller, 1911) of the Middle American Cryptotis goldmani group; Cryptotis merriami Choate, 1970 and Cryptotis nigrescens (Allen, 1895) of the Central American and Colombian C. nigrescens group; and Cryptotis orophilus (Allen, 1895) of the North American Cryptotis parvus group. Missing from Costa Rica are members of the more northern Cryptotis mexicanus group, which was originally thought to include the C. goldmani group (Woodman and Timm 1999), but is now restricted to Mexico (Guevara and Cervantes 2014;He et al 2015). Also lacking from Costa Rica were members of the Cryptotis thomasi group that, with the exception of Cryptotis endersi Setzer, 1950 from the Chiriquí highlands of western Panama, was otherwise restricted to the northern Andes and similar highlands of northern South America (Woodman and Péfaur 2008;Quiroga-Carmona and Molinari 2012;Quiroga-Carmona 2013).…”

Section: Introductionmentioning

confidence: 99%

A new species of small-eared shrew in the Cryptotis thomasi species group from Costa Rica (Mammalia: Eulipotyphla: Soricidae)

Woodman

Timm

2016

Mamm Res

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We describe a new species of small-eared shrew, genus Cryptotis Pomel, 1848 (Eulipotyphla: Soricidae), from near the community of Monteverde in the Tilarán highlands of northwestern Costa Rica. The new species is immediately distinguished from all other Costa Rican shrews its large size and long tail. Morphologically, it belongs to the Cryptotis thomasi group of small-eared shrews, a clade that is more typically distributed in the Andes Cordillera and other highland regions of northern South America. The new Costa Rican species and the Panamanian endemic Cryptotis endersi Setzer, 1950 are the only two members of this species group known to occur in Central America. Like most other members of the C. thomasi group for which the postcranial skeleton has been studied, the new species tends be more ambulatory (rather than semi-fossorial) when compared with other members of the genus. Our survey efforts over several decades failed to locate a population of the new species, and we discuss its conservation status in light of its limited potential distribution in the Tilarán highlands and the significant climatic change that has been documented in the Monteverde region during the past four decades.

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Molecular systematics of small-eared shrews (Soricomorpha, Mammalia) within Cryptotis mexicanus species group from Mesoamérica

Cited by 25 publications

References 35 publications

A new species of small-eared shrew (Mammalia, Eulipotyphla,Cryptotis) from the Lacandona rain forest, Mexico

A new species of small-eared shrew (Mammalia, Eulipotyphla,Cryptotis) from the Lacandona rain forest, Mexico

Riqueza, distribución y conservación de los topos y las musarañas (Mammalia, Eulipotyphla) de México

A new species of small-eared shrew in the Cryptotis thomasi species group from Costa Rica (Mammalia: Eulipotyphla: Soricidae)

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