From 1987 to 1989 we monitored population changes during summer of the collared lemming (Dicrostonyx groenlandicus) and the tundra vole (Microtus oeconomus) at Pearce Point, Northwest Territories, Canada (690 48' N, 1220 40' W). Populations on four study areas did not cycle but remained at low density (<3/ha) each year and continued at low numbers for the following 3 years (Reid et al. 1995). Lemming numbers often declined throughout the summer in spite of continuous reproduction, and population recovery occurred overwinter. Heavy predation losses of radio-collared lemmings occurred each summer and this lemming population may be trapped in a predator-pit. Collared lemmings breed in winter and only because of winter population growth do thes...
Results of observations carried out at the Arctic Research Laboratory, Point Barrow region (1) "duri...
Cyclic population fluctuations are common in boreal and Arctic species but the causes of these cycle...
Lemmings construct nests of grass and moss under the snow during winter, and counting these nests in...
I examined factors limiting population growth of collared lemmings (Dicrostonyx kilangmiutak) at lo...
I examined factors limiting population growth of collared lemmings (Dicrostonyx kilangmiutak) at lo...
Abstract Lemmings play a key role in the tundra food web and their widely reported cyclic oscillatio...
Regular, multi-annual cycles observed in the population abundance of small mammals in arctic and su...
Abstract Rising temperatures and changes in the pre-cipitation regime will have a strong impact on t...
Collared lemmings (Dicrostonyx groenlandicus) fluctuate periodically in abundance on the Kent Penin...
Collared lemmings (Dicrostonyx groenlandicus) fluctuate periodically in abundance on the Kent Penin...
1. The causes of cyclical fluctuations in animal populations remain a controversial topic in ecology...
Lemmings are a key component of tundra food webs and changes in their dynamics can affect the whole ...
Lemmings are a key component of tundra food webs and changes in their dynamics can affect the whole ...
Lemmings are a key component of tundra food webs and changes in their dynamics can affect the whole...
Abstract Snow cover has dramatic effects on the struc-ture and functioning of Arctic ecosystems in w...
Results of observations carried out at the Arctic Research Laboratory, Point Barrow region (1) "duri...
Cyclic population fluctuations are common in boreal and Arctic species but the causes of these cycle...
Lemmings construct nests of grass and moss under the snow during winter, and counting these nests in...
I examined factors limiting population growth of collared lemmings (Dicrostonyx kilangmiutak) at lo...
I examined factors limiting population growth of collared lemmings (Dicrostonyx kilangmiutak) at lo...
Abstract Lemmings play a key role in the tundra food web and their widely reported cyclic oscillatio...
Regular, multi-annual cycles observed in the population abundance of small mammals in arctic and su...
Abstract Rising temperatures and changes in the pre-cipitation regime will have a strong impact on t...
Collared lemmings (Dicrostonyx groenlandicus) fluctuate periodically in abundance on the Kent Penin...
Collared lemmings (Dicrostonyx groenlandicus) fluctuate periodically in abundance on the Kent Penin...
1. The causes of cyclical fluctuations in animal populations remain a controversial topic in ecology...
Lemmings are a key component of tundra food webs and changes in their dynamics can affect the whole ...
Lemmings are a key component of tundra food webs and changes in their dynamics can affect the whole ...
Lemmings are a key component of tundra food webs and changes in their dynamics can affect the whole...
Abstract Snow cover has dramatic effects on the struc-ture and functioning of Arctic ecosystems in w...
Results of observations carried out at the Arctic Research Laboratory, Point Barrow region (1) "duri...
Cyclic population fluctuations are common in boreal and Arctic species but the causes of these cycle...
Lemmings construct nests of grass and moss under the snow during winter, and counting these nests in...