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The adaptive landscape as a conceptual bridge between micro- and macroevolution.

S J Arnold¹, M E Pfrender, A G Jones

¹Department of Zoology, Oregon State University, Corvallis 97331, USA. arnolds@bcc.orst.edu

|February 13, 2002

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The adaptive landscape concept bridges micro- and macroevolution but is often overlooked. This review highlights theoretical models for landscape evolution and suggests empirical research directions.

Area of Science:

Evolutionary biology
Theoretical biology

Background:

G.G. Simpson's adaptive landscape concept connects microevolution and macroevolution.
This crucial concept has been underutilized in empirical studies despite theoretical advancements.

Purpose of the Study:

To review the current status of theoretical work on adaptive landscapes.
To emphasize the importance of models for evolutionary peak movement.
To introduce the concept of evolving landscapes and suggest future research.

Main Methods:

Review of theoretical evolutionary biology literature.
Analysis of models focusing on adaptive landscape dynamics.
Synthesis of theoretical developments and empirical needs.

Main Results:

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Adaptive landscape theory remains a vital link between micro- and macroevolutionary scales.
Models of peak movement are critical for understanding evolutionary trajectories.
A shift towards studying evolving landscapes, not just stationary ones, is a key development.

Conclusions:

The adaptive landscape concept requires greater integration into empirical evolutionary research.
Future research should focus on dynamic landscape models and empirical validation.
Theoretical advancements provide a roadmap for new empirical investigations.