Vertebrate Predator—Prey Interactions in a Seasonal Environment

摘要: Publisher Summary This chapter describes and analyzes the predator–prey dynamics representative of terrestrial ecosystem in Zackenbergdalen. By using comprehensive, temporally replicated data on collared lemming its predators, focuses predator–lemming embracing a period 10 years. The discusses model, specifically modified to reflect observed system In spring summer, predation pressure is heavy, predators are capable reducing density lemmings most summers. winter, however, stoat alone insufficient regulate population. These marked effects also visible behavior summer. Collared spend their time belowground, aboveground, they divide almost equally between foraging being vigilant. Climate not only contributes shaping seasonal population but affects pattern fluctuations. Earlier onset winter has no impact periodicity, whereas later longer periodicity fluctuations, moving toward less stable