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Not putting all their eggs in one basket: bet-hedging despite extraordinary annual reproductive output of desert tortoises

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Lovich, J.E., Ennen, J.R., Yackulic, C.B., Meyer-Wilkins, K., Agha, M., Loughran, C., Bjurlin, C., Austin, M., and Madrak, S., 2015, Not putting all their eggs in one basket: Bet-hedging despite extraordinary annual reproductive output of desert tortoises, Biological Journal of the Linnean Society, v. (online), http://onlinelibrary.wiley.com/doi/10.1111/bij.12505/abstract and http://dx.doi.org/10.1111/bij.12505.

Summary

Bet-hedging theory makes the counter-intuitive prediction that, if juvenile survival is low and unpredictable, organisms should consistently reduce short-term reproductive output to minimize the risk of reproductive failure in the long-term. We investigated the long-term reproductive output of an Agassiz's desert tortoise (Gopherus agassizii) population and conformance to a bet-hedging strategy of reproduction in an unpredictable but comparatively productive environment. Most females reproduced every year, even during periods of low precipitation and poor germination of food plants, and the mean percentage of reproducing females did not differ significantly on an annual basis. Although mean annual egg production (clutch size × clutch [...]

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Harvested on Thu Apr 30 04:17:06 MDT 2015 from MODS XML Service

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Type Scheme Key
local-index unknown 70144936
local-pk unknown 70144936
doi http://www.loc.gov/standards/mods/mods-outline-3-5.html#identifier doi:10.1111/bij.12505
series unknown Biological Journal of the Linnean Society

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journalBiological Journal of the Linnean Society
parts
typevolume
value115
typeissue
value2
languageEnglish
citationTypeArticle

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