Experiment Station Record, Volume 92, January-June, 1945 Page: 77
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19451 ECONOMIC ZOOLOGY-ENTOMOLOGY 77
(18 references) concerned with the natural history of the cotton rat is presented--
taxonomy, habitat, breeding and food habits, economic importance, predators, and
cycles of abundance. An account is also given of the equipment and methods used
in establishing and managing a laboratory colony of this rodent.
The breeding season in two species of Dipodomys, K. L. DUKE (Jour.
Mammal., 25 (1944), No. 2, pp. 155-160, illus. 2).-The two kangaroo rats D. ordii
cotlmbianus and D. microps bonnevillei from central Utah were found to have
two breeding seasons a year and two periods of anestrus. The first breeding season
is from January to (possibly through) March, followed by the first anestrous
period from late June to late August. The second breeding season is from early
September through October, followed by a second anestrus period postulated from
late October or early November until late December or early January.
Um foco potencial de Tripanosomiase Americana na Cidade do Rio de Janeiro
(Distrito Federal) [A potential focus of American trypanosomiasis in Rio de
Janeiro], F. N. GUIMARAES and G. JANSEN (Memn. Inst. Oszualdo Crus, 39
(1943), No. 3, pp. 405-417, illus. 23; Eng. abs., p. 417).-Fifteen specimens of
opossum (Didelphis marsupialis) in the residential zone of the city were found
spontaneously infested with Schizotrypanum cruzi. Another marsupial, Metachirus
V:udicaudatus, is reported for the first time as a wild host of these trypanosomes.
Of 11 specimens of the reduviid bug Panstrongylus megistus captured in a large
building in the same locality, 9 were infested.
Observations on the eastern porcupine, J. D. CURTIS and E. L. KOZICKY.
(Univ. Maine et al.). (Jour. Mammal., 25 (1944), No. 2, pp. 137-146, illus. 1).This
study concerns the distribution of Erethizon dorsatum dorsatum in New
England, its feeding and other habits, movements, senses, physique, parasites and
enemies, interrelationships with other animals, and economic status. Methods of
trapping and handling are also discussed.
The molting of the wandering shrew, W. W. DALQUEST. (Univ. Calif.).
(Jour. Mammal., 25 (1944), No. 2, pp. 146-148, illus. 1).-On Sorex vagrans, a
species of long-tailed shrew common in the western United States and especially
abundant in the western part of Washington.
Leaf nests of gray squirrel in Connecticut, W. D. FIrZWATER, JR., and W. J.
FRANK (Joukr. Mammal., 25 (1944), No. 2, pp. 160-170, illus. 1).-An intensive
study was made of 146 leaf nests of the gray squirrel on the Litchfield-Morris
Wildlife Sanctuary. The construction of leaf nests is important in the life history
of the squirrel, since it provides an adequate number of shelters and clean quarters
located near a source of food. Details as to location and construction of the nests
are given. Besides several centipedes and free-living nematodes, 18 species of
insects were found in the nests.
Nineteenth supplement to the American Ornithologists' Union Check-List
of North American Birds, A. WETMORE ET AL. (Auk, 61 (1944), No. 3, pp. 441464).
A two-year bird census on San Juan Island, Washington, M. R. MILLER.
(Univ. Calif.). (Auk, 61 (1944), No. 3, pp. 395-400, illus. 1).
Birds of the Katmai region, Alaska, V. H. CAHALANE (Auk, 61 (1944), No.
2, pp. 351-375).-In this trip through Katmai National Monument of the Alaska
Peninsula the opportunities for observing bird life were limited to those afforded
by official travel; although it was not possible to make collections of specimens, the
sight records and other observations seemed worth recording. Prior to consideration
of the species of birds seen, accounts are given of the region covered, the life
zones and associations, the itinerary taken, and previous work.
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U.S. Department of Agriculture. Agricultural Research Administration. Office of Experiment Stations. Experiment Station Record, Volume 92, January-June, 1945, book, 1947; Washington D.C.. (digital.library.unt.edu/ark:/67531/metadc5064/m1/90/: accessed September 24, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.