Goshawk - Snowshoe Hare Encounter
نویسندگان
چکیده
منابع مشابه
Seasonal Augmentation of Myoglobin in the Snowshoe Hare.
Its prominence has long made myoglobin a substance of general interest. Distributional surveys have provided useful and suggestive correlations with repetitive types of muscle, notably cardiac, but a direct demonstration of the function of myoglobin has not been made except in the special case of oxygen storage in diving mammals. The concentration of myoglobin in muscle has been reported as inc...
متن کاملImpact of food and predation on the snowshoe hare cycle.
Snowshoe hare populations in the boreal forests of North America go through 10-year cycles. Supplemental food and mammalian predator abundance were manipulated in a factorial design on 1-square-kilometer areas for 8 years in the Yukon. Two blocks of forest were fertilized to test for nutrient effects. Predator exclosure doubled and food addition tripled hare density during the cyclic peak and d...
متن کاملWithin-sample variation in snowshoe hare faecal glucocorticoid metabolite measurements
Faecal glucocorticoid metabolite (FGM) concentrations are used increasingly as a non-invasive measure to index physiological stress experienced by diverse taxa. However, FGM may not be evenly distributed throughout a faecal mass or faecal pellet group. Moreover, within-sample variation in FGM measurements associated with different sampling and/or processing techniques is rarely reported despite...
متن کاملSnowshoe hare populations: squeezed from below and above.
This is an especially interesting article that tries to identify how many variables are defining the oscillatory variation in the hare population. A logical assumption is that hare population, predator population and hare food (e.g. grass) amount are related, but which relation is responsible for the oscillation (periodicity) in the hare population. In order to determine this, the authors perfo...
متن کاملPopulation regulation in snowshoe hare and Canadian lynx: asymmetric food web configurations between hare and lynx.
The snowshoe hare and the Canadian lynx in the boreal forests of North America show 9- to 11-year density cycles. These are generally assumed to be linked to each other because lynx are specialist predators on hares. Based on time series data for hare and lynx, we show that the dominant dimensional structure of the hare series appears to be three whereas that of the lynx is two. The three-dimen...
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ژورنال
عنوان ژورنال: Blue Jay
سال: 1983
ISSN: 2562-5667,0006-5099
DOI: 10.29173/bluejay6182