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Dangremond EM, Feller IC. Precocious reproduction increases at the leading edge of a mangrove range expansion. Ecol Evol. 2016;6(14):5087-92doi: 10.1002/ece3.2270.
Dangremond, E. M., & Feller, I. C. (2016). Precocious reproduction increases at the leading edge of a mangrove range expansion. Ecology and evolution, 6(14), 5087-92. https://doi.org/10.1002/ece3.2270
Dangremond, Emily M, and Feller, Ilka C. "Precocious reproduction increases at the leading edge of a mangrove range expansion." Ecology and evolution vol. 6,14 (2016): 5087-92. doi: https://doi.org/10.1002/ece3.2270
Dangremond EM, Feller IC. Precocious reproduction increases at the leading edge of a mangrove range expansion. Ecol Evol. 2016 Jun 26;6(14):5087-92. doi: 10.1002/ece3.2270. eCollection 2016 Jul. PMID: 27547335; PMCID: PMC4979729.
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Ecol Evol. 2016 Jun 26;6(14):5087-92. doi: 10.1002/ece3.2270. eCollection 2016 Jul.

Precocious reproduction increases at the leading edge of a mangrove range expansion.

Ecology and evolution

Emily M Dangremond, Ilka C Feller

Affiliations

  1. Smithsonian Environmental Research Center 647 Contees Wharf Road Edgewater Maryland 21037.

PMID: 27547335 PMCID: PMC4979729 DOI: 10.1002/ece3.2270

Abstract

Climate change-driven shifts in species ranges are ongoing and expected to increase. However, life-history traits may interact with climate to influence species ranges, potentially accelerating or slowing range shifts in response to climate change. Tropical mangroves have expanded their ranges poleward in the last three decades. Here, we report on a shift at the range edge in life-history traits related to reproduction and dispersal. With a common garden experiment and field observations, we show that Rhizophora mangle individuals from northern populations reproduce at a younger age than those from southern populations. In a common garden at the northern range limit, 38% of individuals from the northernmost population were reproductive by age 2, but less than 10% of individuals from the southernmost population were reproductive by the same age, with intermediate amounts of reproduction from intermediate latitudes. Field observations show a similar pattern of younger reproductive individuals toward the northern range limit. We also demonstrate a shift toward larger propagule size in populations at the leading range edge, which may aid seedling growth. The substantial increase in precocious reproduction at the leading edge of the R. mangle range could accelerate population growth and hasten the expansion of mangroves into salt marshes.

Keywords: Life history; Rhizophora mangle; local adaptation; mangrove; range expansion

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