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Evolution in Action at “Evolution Canyon”

Evolution in Action at “Evolution Canyon”. (E. Nevo, 1997. Theor. Pop. Biol). How to overcome these inconsistencies?. Reducing the number of environmental factors Running simultaneous studies of several species - allows variation across species to be controlled and increase the

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Evolution in Action at “Evolution Canyon”

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  1. Evolution in Action at “Evolution Canyon” (E. Nevo, 1997. Theor. Pop. Biol)

  2. How to overcome these inconsistencies? Reducing the number of environmental factors Running simultaneous studies of several species - allows variation across species to be controlled and increase the magnitude of asymmetry signal Using standardized sampling, measurement and analysis. Quantifying asymmetry at the “Evolution Canyon”

  3. Distribution of taxa and ecological groups at “Evolution Canyon” Darkling beetles Springtails Chrysomelidae beetles butterflies Mosses Skin beetles Scorpions Soil fungi Reptiles Trees and shrubs Grasshoppers (S. Raz, S. Retzkin, T.Pavlíček, A. Hoffman, H. Kimchi, D. Zehavi, A. Beiles, and E. Nevo. 2009.. PLoS ONE ). (E. Nevo, S. Raz, A. Beiles. 1996. . Israel Journal of Zoology).

  4. Adaptations to the opposing slopes • The genetic diversity, both of allozyme and DNA was found to be higher on the AS in 11 out of 16 model organisms. • D. melanogaster-Male recombination was 4-fold higher on the stressful AS than on the mesic ES. • The spiny mouse acomys cahirinus diverged behaviorally , physiologiucally and genetically • Woody species (C. siliqua; P. lentiscus and O. europaea) - ES shrubs develop ‘‘shade leaves’’ Shrubson the AS – xeromorphic leaves ( thicker epidermis).

  5. Mate Choice

  6. Testing the effect of stress on asymmetry at “Evolution Canyon” Plants Fungi Snails Beetles r 2 12 species 5 species 6 species 1 species (S. Raz, et al., Nevo. 2011 BJLS) . (S. Raz, et al., 2011.Submitted, Ecological Indicators.)

  7. Asymmetry Measurements of Plants

  8. Variations in size and asymmetry in the studied taxonomic groups

  9. Prospects

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