Contribution of late-litter juveniles to the population dynamics of snowshoe hares

Oecologia ◽  
2021 ◽  
Vol 195 (4) ◽  
pp. 949-957
Author(s):  
Michael J. L. Peers ◽  
Jody R. Reimer ◽  
Yasmine N. Majchrzak ◽  
Allyson K. Menzies ◽  
Emily K. Studd ◽  
...  
Keyword(s):  
Population Dynamics ◽  
Snowshoe Hares

POPULATION DYNAMICS OF SNOWSHOE HARES IN RELATION TO FURBEARER HARVEST

2005 ◽  
Vol 69 (2) ◽  
pp. 771-781 ◽  
Author(s):  
PIERRE ETCHEVERRY ◽  
MICHEL CRÊTE ◽  
JEAN-PIERRE OUELLET ◽  
LOUIS-PAUL RIVEST ◽  
MARIE-CLAUDE RICHER ◽  
...  
Keyword(s):  
Population Dynamics ◽  
Snowshoe Hares

The role of dispersal in the population dynamics of snowshoe hares

1985 ◽  
Vol 63 (1) ◽  
pp. 106-115 ◽  
Author(s):  
Stan Boutin ◽  
B. S. Gilbert ◽  
Charles J. Krebs ◽  
A. R. E. Sinclair ◽  
J. N. M. Smith
Keyword(s):  
Population Dynamics ◽  
Small Mammals ◽  
Lepus Americanus ◽  
Population Increase ◽  
Dispersal Rate ◽  
Population Densities ◽  
Control Grid ◽  
Snowshoe Hares ◽  
Kluane Lake

We monitored dispersal of snowshoe hares (Lepus americanus) at Kluane Lake, Yukon, during a population increase, peak, and decline. Dispersal was measured by recording the number of immigrants to a removal grid and by tracking radiocollared individuals. The observed decline was not due to dispersal, as a maximum of 28% of all losses of radiocollared animals was due to dispersal. Dispersal rate (as measured by number of immigrants to the removal grid per individual on the control grid) was negatively correlated (−0.51, P < 0.01) with the rate of population increase. Highest dispersal rates occurred in the winters when hare populations were at peak and early decline densities. Dispersers at this time were lighter in weight than residents. We discuss our results in light of current hypotheses attempting to explain dispersal in cyclic small mammals and conclude that our results are consistent with the hypothesis that food shortage is responsible for increased rates of dispersal at peak population densities Comparison of dispersal, as monitored by radiotelemetry, versus immigration to a removal grid, suggests that removal grids overestimate dispersal, particularly at high densities when removal grids may attract animals because food supplies are relatively favorable there.

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