What about non-adaptive radiation?
1991/08/01 by E. GITTENBERGER, Edmund Gittenberger · 310 citations
Environmental Science · #Adaptation (eye) #Adaptive radiation #Allopatric speciation #Biology #Demography #Diversification (marketing strategy) #Ecological niche #Ecology #Evolutionary biology #Genetics #Phylogenetics #Population #Species Distribution and Climate Change
paper · doi:10.1111/j.1095-8312.1991.tb00598.x
published in Biological Journal of the Linnean Society 43(4), 263-272 (Oxford University Press)
openalex publication_date 1991/08/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/26
Abstract
The use of the epithet ‘adaptive’ in the popular denotation ‘adaptive radiation’ suggests that radiation as such does not imply adaptation. Without trying to define radiation more sharply than is usually done in textbooks, emphasis is given to what might be called non-adaptive radiation, a kind of diversification not accompanied by adaptation into various significantly different niches and, therefore, resulting in a group of allopatric species which are isolated because of competitive interactions.
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