An informative glossary on the last page provides a few brief facts regarding each creature: "8 Eight Lemming--A northern collared lemming
's front teeth continue to grow throughout its entire life.
Representing the Western High Arctic Natural Region of Canada, Qausuittuq National Park protects key wildlife habitat and migration routes, including the calving and wintering grounds of the endangered Peary caribou, as well as habitat for muskoxen, arctic wolf, arctic fox, collared lemming
and arctic hare.
The Arctic fox, northern collared lemming
, caribou, and Arctic ground squirrel comprised 60.7% of the total number of specimens collected.
Olivier Gilg and academy professor Ilkka Hanski from the University of Helsinki have teamed up with Benoit Sittler, a researcher from the University of Freiburg, and studied the waning of the previously cyclical population dynamics of the collared lemming
This report of collared lemming
fossils, Dicrostonyx sp., is the earliest south of Beringia and, if a larger sample were available, could have an important bearing on the evolution of this genus in North America.
Maternal effects and additive genetic inheritance in the collared lemming
Keywords: arctic ground squirrel; collared lemming
; Dicrostonyx kilangmiutak; generalist predator; predator diets; prey refuge; red fox; Rough-legged Hawk; semigeneralist predator; specialist predator.
Five species of terrestrial mammals were recorded on Prince Leopold Island: wolf (Cams lupus), Arctic fox (Vulpes lagopus), Arctic hare (Lepus arcticus), collared lemming
(Dicrostonyx groenlandicus), and caribou (Rangifer tarandus) (Table 2).
Both study areas supported cyclic populations of collared lemming
(Dicrostonyx groen-landicus) and brown lemming (Lemmus trimucronatu,.s.; Gruyer et al., 2008, Krebs et al., 2011).
Our rate of 11% of winter nests with signs of weasel predation, as observed also over the larger area, lies within the range of values observed for stoat predation on Nearctic collared lemming
A long-term field study on a cyclic population of collared lemming
in Greenland suggested that a delayed numerical response of stoats (Mustela erminea L.) caused a cyclic pattern (Gilg et al., 2003).
Key words: arctic tern, collared lemming
, Dicrostonyx groenlandicus.