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- W2890411269 abstract "Abstract Dispersal is a critical process for the persistence and productivity of marine populations. For many reef species, there is increasing evidence that local demography and self-recruitment have major consequences on their genetic diversity and adaptation to environmental change. Yet empirical data of dispersal patterns in reef-building species remain scarce. Here, we document the first genetic estimates of local dispersal and self-recruitment in a broadcasting reef-builder, the hydrocoral Millepora platyphylla . Using microsatellite markers, we gathered genotypic information from 3160 georeferenced colonies collected over 9000 m 2 of reef in three adjacent habitats in Moorea, French Polynesia; the mid slope, upper slope and back reef. Our parentage analysis revealed a predominance of self-recruitment with 58% of sexual propagules produced locally. Sexual propagules often settled at less than 10 meters from their parents and dispersal events decrease with increasing geographic distance. Limited dispersal among adjacent habitats via cross-reef transport was also detected. Sibship analysis showed that both full and half siblings recruit together on the reef, resulting in sibling aggregations. The identification of local families revealed discrepancies between dispersal patterns of sexual and asexual propagules. Self-recruits are dispersed with along-reef currents and settled in alignment with the location of their parents, while the dispersal of asexual fragments is heavily influenced by wave-driven cross-reef currents. Our findings highlight the importance of self-recruitment together with clonality in stabilising population dynamics, as it can enhance local sustainability and resilience to disturbance, but also raise uncertainties on the widely accepted high dispersal ability of broadcasting reef species." @default.
- W2890411269 created "2018-09-27" @default.
- W2890411269 creator A5041512852 @default.
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- W2890411269 creator A5066411095 @default.
- W2890411269 creator A5085402881 @default.
- W2890411269 date "2018-09-12" @default.
- W2890411269 modified "2023-10-18" @default.
- W2890411269 title "Dispersal limitations of early life stages and sibling aggregations in a broadcasting<i>Millepora</i>hydrocoral, as revealed by parentage analysis" @default.
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- W2890411269 doi "https://doi.org/10.1101/413963" @default.
- W2890411269 hasPublicationYear "2018" @default.
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