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We evaluated the relationship between growing-season phenology, as indicated by time of snow melt, and intrapopulation variation in reproduction and growth of yellow-bellied marmots. The time of snow melt explained significant proportions of the variation in frequency of reproduction (78%), litter size (79%), and estimated body mass of young of the year (68%), but not growth rate. We suggest that the duration of snow cover, through its effect on the length of the growing season, influences habitat quality; marmots living at localities with prolonged snow cover have a shorter season of access to food. The variation in life-history traits is attributed to phenotypic plasticity and not to local genetic variation.
Knowledge graph centered on Duration of snow cover and its influence on life-h with 9 nodes and 23 connections. Top connected: Climate change is affecting altitudinal migrants a, Marmota flaviventris, Kenneth B. Armitage, Social enhancement of fitness in yellow-bellied ma, Reproductive strategies of yellow-bellied marmots:.
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