摘要 Theories suggest that 食物網s might consist of group

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論文資訊

• 類型：已發表論文
• 日期：2009

摘要

Theories suggest that 食物網s might consist of groups of 物種 forming 'blocks', 'compartments' or 'guilds'. We consider ecological 網絡s - subsets of complete 食物網s - involving 物種 at adjacent 營養級 levels. Reciprocal specializations occur when (say) a pollinator (or group of pollinators) specializes on a particular flower 物種 (or group of such 物種) and vice versa. Such specializations tend to group 物種 into guilds. We characterize the level of reciprocal specialization for both antagonistic interactions - particularly parasitoids and their hosts - and mutualistic ones - such as insects and the flowers that they pollinate. We also examine whether 營養級 patterns might be 'palimpsests'- that is, there might be reciprocal specialization within taxonomically related 物種 within a 網絡, but these might be obscured

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