Abstract
A precipitous increase in the abundance of the corallivorous snail Drupella cornus at Ningaloo Reef, Western Australia, raises fundamental questions about the population structure and genetics of this species. We examined genetic heterogeneity at ten polymorphic allozyme loci among samples of adult D. cornus from nine sites along 180 km of Ningaloo Reef, plus two sites from the Abrolhos Islands and one from the Dampier Archipelago, spanning a total distance of 1170 km. Variations in allelic frequencies were small (average FST=0.007), indicating that a high degree of planktonic dispersal is the norm. Nevertheless, some heterogeneity among samples was found at four of the loci. This heterogeneity occurred within Ningaloo Reef and did not increase with geographic distance. The local heterogeneity was not a function of habitat type but seemed to be associated with stage of outbreak. However, all outbreak populations came from within Ningaloo Reef and the non-outbreak populations were from outside Ningaloo Reef proper. Our results show peculiarities in the genetic structure of D. cornus on Ningaloo Reef, but the causes are not understood.
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References
Ayling AM, Ayling AL (1987) Ningaloo Marine Park: preliminary fish density assessment and habitat survey. Unpublished report for the Department of Conservation and Land Management, Western Australia 19 pp
Benzie JAH, Stoddart JA (1988) Genetic approaches to ecological problems: crown-of-thorns starfish outbreaks. In: Choat JH et al. (eds) Proc 6th Int Coral Reef Symp Vol 2, pp 119–124
Benzie JAH, Stoddart JA (1992) Genetic structure of outbreaking and non-outbreaking crown-of-thorns starfish (Acanthaster planci) populations on the Great Barrier Reef. Mar Biol 93:119–130
Boucher LM (1986) Coral predation by muricid gastropods of the genus Drupella at Enewetak, Marshall Islands. Bull Mar Sci 38: 9–11
Cresswell GR (1991) The Leeuwin Current-observations and recent models. J R Soc West Aust 74:1–14
D'Asaro CN (1966) The egg capsules, embryogenesis, and early organogenesis of a common oyster predator, Thais haemastoma floridana (Gastropoda: Prosobranchia). Bull Mar Sci 16:884–914
Fujioka Y, Yamazato K (1983) Host selection of some Okinawan coral associated gastropods belonging to the genera Drupella, Coralliophila and Quoyula. Galaxea 2:59–73
Johnson MS, Black R (1984a) Pattern beneath the chaos: the effect of recruitment on genetic patchiness in an intertidal limpet. Evolution 38:1371–1383
Johnson MS, Black R (1984b) The Wahlund effect and the geographical scale of variation in the intertidal limpet Siphonaria sp. Mar Biol 79:295–302
Johnson MS, Black R (1991) Genetic subdivision of the intertidal snail Bembicium vittatum (Gastropoda: Littorinidae) varies with habitat in the Houtman Abrolhos Islands, Western Australia. Heredity 67:205–213
Johnson MS, Holborn K, Black R (1993) Fine-scale patchiness and genetic heterogeneity of recruits of the corallivorous gastropod Drupella cornus (Röding 1798). Mar Biol (in press)
Kenchington RA (1977) Growth and recruitment of Acanthaster planci (L) on the Great Barrier Reef. Biol Conserv 11:103–118
Keough MJ, Downes BJ (1982) Recruitment of marine invertebrates: the role of active larval choices and early mortality. Oecologia 54:348–352
Maxwell JGH, Cresswell GR (1981) Dispersal of tropical marine fauna to the Great Australian Bight by the Leeuwin Current. Aust J Mar Freshwater Res 32:493–500
Moran PJ, De'ath G, Baker VJ, Bass DK, Christie CA, Miller IR, Miller-Smith BA, Thompson AA (1992) Pattern of outbreaks of crown-of-thorns starfish (Acanthaster planci L) along the Great Barrier Reef since 1966. Aust J Mar Freshwater Res 43:555–568
Moyer JT, Emerson WK, Ross M (1982) Massive destruction of seleractinian corals by the muricid gastropod, Drupella, in Japan and the Philippines. Nautilus 96:69–82
Nash WJ, Goddard M, Lucas JS (1988) Population genetic studies of the crown-of-thorns starfish, Acanthaster planci (L), in the Great Barrier Reef region. Coral Reefs 7:11–18
Nishida M, Lucas JS (1988) Genetic differences between geographic populations of the crown-of-thorns starfish throughout the Pacific region. Mar Biol 98:359–368
Reichelt RE, Bradbury RH, Moran PJ (1990) Distribution of Acanthaster planci outbreaks on the Great Barrier Reef between 1966 and 1989. Coral Reefs 9:97–103
Reynolds BJ, Weir BS, Cockerham CC (1983) Estimation of the coancestry coefficient: basis for a short-term genetic distance. Genetics 105:767–779
Richardson BJ, Baverstock PR, Adams M (1986) Allozyme electrophoresis. Academic Press, Sydney
Slatkin M (1985) Gene flow in natural populations. Annu Rev Ecol Syst 16:393–430
Slatkin M (1987) Gene flow and the geographic structure of natural populations. Science 236:787–792
Stoddart JA (1989) Fatal attraction. Landscope 4:14–20
Turner SJ (1992) The egg capsules and early life history of the corallivorous gastropod Drupella cornus (Röding, 1798). Veliger 35:16–25
Underwood AJ, Faireweather PG (1989) Supply-side ecology and benthic marine assemblages. Trends Ecol Evol 4:16–20
Watts RJ, Johnson MS, Black R (1990) Effects of recruitment on genetic patchiness in the urchin Echinometra mathaei in Western Australia. Mar Biol 105:145–151
Weir BS, Cockerham CC (1984) Estimating F-statistics for the analysis of population structure. Evolution 38:1358–1370
Wilson B (1992) Taxonomy of Drupella (Gastropoda, Muricidae). In: Turner S (ed) Drupella cornus: a Synopsis. CALM Occ Pap 3/92 (Proceedings of a workshop held at the Department of Conservation and Land Management, Como, Western Australia 21–22 November 1991), pp 5–9
Workman PL, Niswander JD (1970) Population studies on South Western Indian Tribes. 2. Local genetic differentiation in the Papago. Am J Hum Genet 22:24–49
Wright S (1978) Evolution and the genetics of populations. Vol 4. Variability within and among natural populations. University of Chicago Press, Chicago
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Holborn, K., Johnson, M.S. & Black, R. Population genetics of the corallivorous gastropod Drupella cornus at Ningaloo Reef, Western Australia. Coral Reefs 13, 33–39 (1994). https://doi.org/10.1007/BF00426432
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DOI: https://doi.org/10.1007/BF00426432