نتایج جستجو برای: ecologically
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The central questions of bacterial ecology and evolution require a method to consistently demarcate, from the vast and diverse set of bacterial cells within a natural community, the groups playing ecologically distinct roles (ecotypes). Because of a lack of theory-based guidelines, current methods in bacterial systematics fail to divide the bacterial domain of life into meaningful units of ecol...
This article considers the question of how to produce ecologically valid assessments of music's role as a health technology. To address this question, I consider critically some of the standard quantitative instruments used to assess well-being and quality of life. I suggest that these instruments do not lend themselves well to the production of ecologically valid assessments and understandings...
The high levels of species diversity observed within many biological communities are captivating, yet the mechanisms that may maintain such diversity remain elusive. Many of the phenotypic differences observed among species cause interspecific tradeoffs that ultimately act to maintain diversity through niche-based coexistence. In contrast, neutral community theory argues that phenotypic differe...
Mechanisms and processes of ecologically driven adaptive speciation are best studied in natural situations where the splitting process is still occurring, i.e. before complete reproductive isolation is achieved. Here, we present a case of an early stage of adaptive differentiation under sympatric conditions in the fire salamander, Salamandra salamandra, that allows inferring the underlying proc...
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