Constarium
← Search

Data · collection · 2005

A New Species of Oryzomys (Rodentia: Muridae) from Eastern Bolivia

Listed in GBIF

Description

This dataset contains the digitized treatments in Plazi based on the original journal article EMMONS, LOUISE H., PATTON, JAMES L. (2005): A New Species of Oryzomys (Rodentia: Muridae) from Eastern Bolivia. American Museum Novitates 3478 (1): 1-27, DOI: 10.1206/0003-0082(2005)478[0001:ANSOOR]2.0.CO;2, URL: bioone.org/perlserv/?request=get-abstract&doi=10.1206%2F0003-0082(2005)478%5B0001%3AANSOOR%5D2.0.CO%3B2 ABSTRACT Specimens of Oryzomys referable to the megacephalus complex (Musser et al., 1998) collected in the Parque Nacional Noël Kempff Mercado (PNNKM), eastern Bolivia, are discriminated from three other currently recognized species of that group (O. megacephalus, O. perenensis, O. laticeps) by analysis of cranial morphometrics and molecular sequence of the cytochrome b gene.

The Bolivian sample has the closest genetic relationship to O. perenensis (Kimura 2­parameter genetic distance 3 100: 14.8) and O. laticeps (distance 12.0), but the genetic distance is large. The Bolivian sample is clearly separated from the others by both principal component and discriminant function analyses of cranial and body variables. We here describe it as a new species.

Read the rest (2 more)

Morphologically, it is intermediate in size, along with O. perenensis, between the smaller O. megacephalus and the larger­bodied O. laticeps. In pelage color and occlusal pattern it closely resembles O. megacephalus. The geographic range appears to be a relatively small area of the western basin of the Río Itenez that drains easternmost Santa Cruz and Beni Departments.

Genetically verified populations of the four species are thus far allopatric, with the known range of the new species wedged between the geographic ranges of O. perenensis to the west and O. megacephalus to the east.

Links

Topics

From keywords
Life Sciences
Inferred from text
Evolutionary biology 68%
Provenance · 1 source records, 9 field assertions
SourceKeyLast seenRaw
GBIFd1a49267-6e91-4f83-87d9-b3ea9e69392410 d agoJSON v1
FieldAssertionExtractorEvidence
access_levelsource · gbifconnector:gbif@1.0.0
concepts[field].anzsrc:group:3104enrichment · gbiftaxonomy-embedding@1.1.0title+keywords+description (68%)
concepts[field].local:field:life-sciencesmapping · gbifconnector:gbif@1.0.0
created_datesource · gbifconnector:gbif@1.0.0
descriptionsource · gbifconnector:gbif@1.0.0/description
licensesource · gbifconnector:gbif@1.0.0
publication_datesource · gbifconnector:gbif@1.0.0
titlesource · gbifconnector:gbif@1.0.0/title
updated_datesource · gbifconnector:gbif@1.0.0