In addition, it confirmed that there was a positive correlation between leptin and body fat mass in many mammals, such as Meriones unguiculatus (Li and Wang, 2005), Phodopus sungorus (Johnson et al., 2004) and
Dicrostonyx hudsonius (Klingenspor et al., 2000).
Its diet is composed of lemmings, Lemmus trimucronatus and
Dicrostonyx groenlandicus, and greater snow geese Chen caerulescens atlanticus, mostly eggs and goslings (Bety and Gauthier 2002, Careau et al.
and Myodes rutilus), and lemmings (Lemmus trimucronatus and
Dicrostonyx groenlandicus) are also presumably present in the area (MacDonald and Cook 2009) and may represent important prey for Lynx in Katmai National Park during periods of low Snowshoe Hare abundance.
Multiple glacial refugia in the North American Arctic: Inference from phylogeography of the collared lemming (
Dicrostonyx groenlandicus).
2003: Phylogeography of the circumpolar Paranoplocephala arctica species complex (Cestoda: Anoplocephalidae) parasitizing collared lemmings (
Dicrostonyx spp.).
Gut length and mass increased as the temperature decreased in the rodents Microtus ochrogaster Wagner, and
Dicrostonyx groenlandicus Traill (Hammond & Wunder 1995).
Additionally, the pellets include many mammoth steppe environment rodents such as Lemmus lemmus,
Dicrostonyx henseli, Microtus gregalis, or Allactaga saliens (cf.
Infanticide and pregnancy failure: reproductive strategies in the female collared lemming (
Dicrostonyx groenlandicus).
Death of the mother was responsible for more than half of all instances of total litter loss in Peromyscus leucopus (Millar et al., 2004) and also was deemed important in nestling mortality of
Dicrostonyx groenlandicus (Reid et al., 1995).
Although the fish fossils represent wide-ranging taxa, the mammal fossils include northern taxa such as
Dicrostonyx sp., Lemmus sp., Synaptomys borealis, and Microtus xanthoganthus.
The Arctic fox (Alopex lagopus), reindeer (Rangifer tarandus), musk-ox (Ovibos moschatus), lemmings (Lemmus,
Dicrostonyx), and Middendorff's vole (Microtus middendorffi) are some of the commonest and most typical of all circumpolar mammal species.