Pemberton deer mouse

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Pemberton deer mouse
Systematics
Superfamily : Mice-like (Muroidea)
Family : Burrowers (Cricetidae)
Subfamily : Neotominae
Tribe : Reithrodontomyini
Genre : White footed mice ( Peromyscus )
Type : Pemberton deer mouse
Scientific name
Peromyscus pembertoni
Burt , 1932

The Pemberton deer mouse ( Peromyscus pembertoni ), also known as the Pemberton mouse or Pemberton white-footed mouse , is an extinct rodent belonging to the white-footed mice .

description

The Pemberton deer mouse reached a head-trunk length of 106 mm and a tail length of 104 mm. The rear foot length was 24 mm. The top was light cinnamon to ocher-sand-colored and the back was mottled with fine dark lines. The head was lighter than the back. The underside was white. The tail was two-colored, with a brown top and a white underside.

habitat

The Pemberton deer vole was endemic to the Pacific island of Isla San Pedro Nolasco in the Gulf of California . In addition to Peromyscus boylii glasselli , the Pemberton deer mouse was the only other mammal on the island, which has an area of ​​3.2 km² and is about 10 km west of the coast of the Mexican state of Sonora . Dominant plant taxa on Isla San Pedro Nolasco are Bursera microphylla , Echinocereus websterianus , Euphorbia magdalenae , Fouquieria diguetii , Jatropha cuneata , mammillaria multidigitata , Mammillaria tayloriorum , Melochia tomentosa , Opuntia fulgida var. Fulgida , Pachycereus pringlei , Pedilanthus macrocarpus , Simmondsia chinensis and Stenocereus thurberi . Little is known about the way of life of the Pemberton deer mouse.

status

The Pemberton deer mouse is only known from twelve specimens that the American zoologist Dr. William Henry Burt of the California Institute of Technology in December 1931. In subsequent expeditions (most recently in 1997) the taxon was no longer detected. The reasons for the disappearance of the Pemberton deer mouse are largely unknown. However, hypotheses go in the direction that Peromyscus boylii glasselli was able to compete better for food sources and has gradually displaced the Pemberton deer mouse from its habitat. The species is named after John Roy Pemberton (1884–1968), an ornithologist and businessman who financed Burt's research in the Gulf of California.

literature

  • Sergio Ticul Álvarez-Castañeda, Patricia Cortés-Calva: Peromyscus pembertoni. In: Mammalian Species . No. 734, pp. 1–2, online (PDF; 236 kB) .
  • Tim Flannery , Peter Schouten : A Gap in Nature. Discovering the World's Extinct Animals. Atlantic Monthly Press, New York NY 2001, ISBN 0-87113-797-6 .
  • William Henry Burt : Descriptions of Heretofore Unknown Mammals from Islands in the Gulf of California, Mexico. In: Transactions of the San Diego Society of Natural History. Vol. 7, 1931/1934, ISSN  0080-5947 , pp. 161-185, here p. 181 (published October 31, 1932).

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