CHAPTER 12 – Finch Communities in a Climatically Fluctuating Environment

摘要: This chapter is concerned with the change in communities caused by environmental fluctuations and connection between observable over longer periods of time past. Seasonal annual conditions about decades are well known from direct observation measurement. Fluctuations climate, especially temperature, probably best for longest period. In recent years, records have been extended backward through analysis tree rings, alluvial deposits, ice cores, coral it has become apparent that temperature display two patterns: periodic or quasi-periodic oscillations state shifts. The also suggests community a core species, other species sometimes added subtracted according to circumstances. Thus, biological consequences extreme climatic experienced during long-term study provide view dynamics historical prehistorical