Remarks on the breeding conditions and moulting of the collared lemming (Dicrostonyx)
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Remarks on the breeding conditions and moulting of the collared lemming (Dicrostonyx) by Magnus DegerbГёl

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Published by C.A. Reitzel in København .
Written in English

Subjects:

  • Lemmings,
  • Reproduction

Book details:

Edition Notes

Statementby Magnus Degerbøl and U. Møhl-Hansen. With 27 figures in the text.
SeriesMeddelelser om Grønland, udgivne av Kommissionen for videnskabelige undersøgelser i Grøonland., Bd. 131, nr. 11, Meddelelser om Grønland ;, bd. 131, nr. 11.
ContributionsMøohl-Hansen, U.
Classifications
LC ClassificationsQ115 .D39 bd. 131, nr. 11
The Physical Object
Pagination40 p.
Number of Pages40
ID Numbers
Open LibraryOL190768M
LC Control Numbera 46005774
OCLC/WorldCa11541473

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per litter. Few collared lemmings live beyond one year of age. With this rapid breeding and short life cycle, it is common for 30 percent of the collared lemming population to die every two weeks. The. northern bog lemming, Synaptomys borealis, is native to the area all along the Pacific coast of Alaska. Most of the time during breeding season, all of the females will be pregnant at one time or another. Very rarely is a female not pregnant during mating season, even if she has a litter still nursing. Each female Lemming will have about 4 little ones per litter, but she may have as many as 3 litters per year. Normal and blocked pregnancy were studied in the collared lemming, Dicrostonyx groenlandicus, in the laboratory with individuals bred from wild stock caught at Eskimo Point, N.W.T. Morphometrical.   A friend recommended this book as the most disturbing children's book--so of course I was intrigued. Basically, your cute and furry creature is a lemming named Blubber, who must decide between taking the plunge or saving his inner child/5.

The team behind the New York Times bestselling Wolfie the Bunny and Horrible Bear!is back with with new Arctic characters in this hilarious learning-to-read adventure! Aboard the S.S. Cliff, First Mate Foxy reads an interesting fact: "Lemmings don't jump off cliffs." But Foxy can't get the lemmings on the Cliff to read his book, 're too busy jumping off/5(23). paternal care is not an artifact of laboratory conditions. Paternal care in collared lemmings may have evolved to maximize fitness of both sexes during winter. Key words: collared lemming, paternal care, winter breeding, fitness RÉSUMÉ. This study describes and quantifies the social organization and agonistic behaviour of adult male collared lemmings (Dicrostonyx groenlandicus) in an indoor enclosure. Five groups of four lemmings were observed during separate 8-day tests. Experimental design permitted an increase in group size while density remained by: By using comprehensive, temporally replicated data on the collared lemming and its predators, the chapter focuses on the predator–lemming dynamics embracing a period of 10 years.

P COLLARED LEMMINGS AT CHURCHILL, MANITOBA / PEAK ABUNDANCE LOW ABUNDANCE FIG. 2. The deviation lemming abundance small mammals (Pruitt, ; Courtin et al., ), although snowfall or relatively warm temperatures after freeze-up until the reduced snow cover in less extreme years is inconse- the snow has accumulated. Collared Lemming’s snow burrows are created with comfort in mind – they have room dedicated to sleeping, bathrooms, and nest rooms. The birth rates of some predator animals, like the Snowy Owl, depend on how many Collared Lemmings are available in the area during the breeding season.   Filmed near Toolik Lake, Alaska. This feature is not available right now. Please try again later.   Therefore, all moulting adults captured were breeders and were at least two years old as snow geese do not breed as yearlings (Cooke, Rockwell & Lank , Reed ). We captured geese by driving groups of 1–4 families (i.e. 3–20 birds) into corral traps ( Cited by: