Age Structure Component of Niche Width and Intraspecific Resource Partitioning: Can Age Groups Function as Ecological Species?

摘要: Many species pass through several distinct age classes (instars or year classes) as they grow. The variety of resources used by effectively expands niche width. This "age-specific component" width is analyzed for a desert scorpion, Paruroctonus mesaensis, whose populations exhibit both instars and discrete classes. Another purpose this paper to evaluate if function "ecological species" showing the same differences in morphology resource use exists between biological species. similarity growth ratio (Dyar's constant) Hutchinson's Santa Rosalia has promoted speculation that size divergence groups ecological basis competing Empirical resource-related parameters were determined from survey literature. These interspecific are compared population. Intraspe...