Effective evolutionary time¶
Effective evolutionary time is a hypothesis that species diversity accumulates faster where temperature-dependent evolutionary rates are higher and environmental conditions persist longer without major disruption.
Core Idea¶
Effective evolutionary time is treated here as the recurring natural sciences, engineering, and health identity summarized by this source-grounded definition: Effective evolutionary time is a hypothesis that species diversity accumulates faster where temperature-dependent evolutionary rates are higher and environmental conditions persist longer without major disruption. The hypothesis of effective evolutionary time attempts to explain gradients, in particular latitudinal gradients in species diversity. Bernhard Rensch, for example, stated that evolutionary rates also depend on temperature: numbers of generation in poikilotherms, but sometimes also in homoiotherms (homoiothermic), are greater at higher temperatures and the effectiveness of selection.
Scope of Application¶
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Recent studies. (2002) described a general model also based on first principles of allometry and biochemical kinetics which makes predictions about generation times as a function of body size and temperature.
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Background. This has been shown for many animal and plant groups, although exceptions exist (see latitudinal gradients in species diversity).
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Background. It has become more and more apparent that species diversity is best correlated with environmental temperature and more generally environmental energy.
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Background. Effective evolutionary time is a hypothesis that species diversity accumulates faster where temperature-dependent evolutionary rates are higher and environmental conditions persist longer without major disruption.
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Background. Mutation rates and speed of selection due to faster physiological rates are highest, and generation times which also determine speed of selection, are smallest at high temperatures.
Clarity¶
A clear use of Effective evolutionary time names the carrier, the operative relation, and the conditions under which the source treats the identity as present. The minimal definition is Effective evolutionary time is a hypothesis that species diversity accumulates faster where temperature-dependent evolutionary rates are higher and environmental conditions persist longer without major disruption.
Manages Complexity¶
Effective evolutionary time compresses multiple natural sciences, engineering, and health details into a stable diagnostic relation. The source shows both the central mechanism—such different ceilings are thought to be, for example, determined by heterogeneity or area of the habitat.—and the practical consequence—rohde (1992, 1978) had already pointed out that “it may well be that mammalian diversity is entirely determined by the diversity of plants and poikilothermic animals.
Abstract Reasoning¶
- Type the carrier. Identify the natural sciences, engineering, and health entities to which the claim applies.
- State the relation. Use the source-grounded identity: Effective evolutionary time is a hypothesis that species diversity accumulates faster where temperature-dependent evolutionary rates are higher and environmental conditions persist longer without major disruption.
- Check operation and conditions. Thus, diversity of marine benthos, interrupted by some collapses and plateaus, has risen from the Cambrian to the Recent, and there is no evidence that saturation has been reached.
- Demand recognition evidence.
Knowledge Transfer¶
Within the home domain. Knowledge about Effective evolutionary time transfers literally when a new case preserves the same carrier type, relation, and recognition test. (2002) described a general model also based on first principles of allometry and biochemical kinetics which makes predictions about generation times as a function of body size and temperature. This has been shown for many animal and plant groups, although exceptions exist (see latitudinal gradients in species diversity). Beyond the home domain. No canonical parent is asserted for Effective evolutionary time.
Neighborhood in Abstraction Space¶
Effective evolutionary time sits in a moderately populated region (53rd percentile for distinctiveness): it has near-neighbors but no dense thicket of look-alikes.
Family — Evolutionary & Ecological Hypotheses (21 abstractions)
Nearest neighbors
- Population distribution — 0.88
- Species–Area Relationship — 0.87
- Heteropatric Speciation — 0.86
- Ecological Effects of Biodiversity — 0.86
- Plankton — 0.85
Computed from structural-signature embeddings · 2026-10-08