Breeding Land Birds of the Channel Islands

摘要: INTRODUCTION Biologists are familiar with the thought that islands have unique scientific value as natural laboratories where mainland species pool is reshuffled by differential immigration. extinction, and evolution to form new communities of fewer species. As material for studying these experiments, birds Channel Islands special interest. The reason this interest not themselves unique: far less distinct than those Galapagos (e.g .. see Power 1980), they also plants Philbrick (1980) has discussed. But most easily observed, best· studied organisms on Islands, hence which we detailed information ecological topics such population dynamics, niche shifts, competition.