When to press on or turn back: dispersal strategies for reef fish larvae
Armsworth, Paul R., James, Maurice K., and Bode, Lance (2001) When to press on or turn back: dispersal strategies for reef fish larvae. American Naturalist, 157 (4). pp. 434-450.
|PDF (Published Version) - Repository staff only - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader|
View at Publisher Website: http://dx.doi.org/10.1086/319322
Events that occur during the pelagic larval stage are thought to be important determinants of reef fish population dynamics. Recent research contradicts the early paradigm of larvae being advected as passive propagules and indicates that many late stage larvae have well-developed sensory and locomotory capabilities. Whether and how larvae use these capabilities to influence their dispersal is unknown. We compare alternative hypotheses regarding larval behavior. Contrary to the trend in dispersal modeling, we focus on larval biology rather than physical oceanographic considerations. Specifically, we present two streams of models: one that describes a return-based strategy and one in which dispersal is a central component. The models depend on different sets of behavioral assumptions for a pomacentrid species and for acanthurids, two groups with contrasting early life histories. Whether dispersal or return‐based strategies are favored depends on the efficiency and sustainability of larval swimming methods and the environmental conditions experienced during dispersal. We argue that dispersal models should consider a variety of behavioral hypotheses and that the sensitivity of results to the behavioral assumptions made should be quantified.
|Item Type:||Article (Refereed Research - C1)|
|Keywords:||reef fish, pelagic larvae, dispersal, self-recruitment, swimming, larval behavior|
|FoR Codes:||01 MATHEMATICAL SCIENCES > 0102 Applied Mathematics > 010202 Biological Mathematics @ 100%|
|SEO Codes:||97 EXPANDING KNOWLEDGE > 970101 Expanding Knowledge in the Mathematical Sciences @ 100%|
|Deposited On:||11 Aug 2011 10:32|
|Last Modified:||28 Mar 2013 15:05|
Last 12 Months: 1
Repository Staff Only: item control page