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The fate of the ephippia - Daphnia dispersal in time and space

Identyfikatory
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
When conditions deteriorate, freshwater cladocerans from the genus Daphnia switch to production of diapausing eggs encased in chitinous shells called ephippia. Ephippia may serve for temporal escape and recolonisation of the habitat or for geographical dispersal and colonization of other habitats. While dormancy and dispersal of ephippia have been well studied, initial factors determining the fate of the ephippia have remained unknown. We first consider the fate of an ephippium that sinks to the bottom of the water body, where it enriches the egg bank present in the sediments. We then discuss the potential and evidence for dispersal of ephippia, which is probably facilitated by their flotation on the water surface. Finally, we concentrate on the moment of the release of the ephippium showing a likely mechanism that determines its further fate - temporal or spatial dispersal - and we demonstrate it to be accomplished through maternal behaviour.
Słowa kluczowe
Twórcy
  • Department of Hydrobiology, Warsaw University, Banacha 2, 02-291, Warsaw, Poland
  • Department of Hydrobiology, Warsaw University, Banacha 2, 02-291, Warsaw, Poland
  • Department of Hydrobiology, Warsaw University, Banacha 2, 02-291, Warsaw, Poland
Bibliografia
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  • Cáceres C.E. 1998 – Interspecific variation in the abundance, production, and emergence of Daphnia diapausing eggs – Ecology, 79: 1699–1710.
  • Cáceres C.E., Hairston N.G. Jr. 1998 – Benthic-pelagic coupling in planktonic cladocerans: the role of the benthos – Arch. Hydrobiol. Spec. Issues Advanc. Limnol. 52: 163–174.
  • Cáceres C.E., Schwalbach M.S. 2001 – How well do laboratory experiments explain field patterns of zooplankton emergence? – Freshwat. Biol. 46: 1179–1189.
  • Cáceres C.E., Tessier A.J. 2003 – How long to rest: the ecology of optimal dormancy and environmental constraint – Ecology, 84: 1189–1198.
  • Carvalho G.R., Wolf H.G. 1989 – Resting eggs of lake-Daphnia I. Distribution, abundance and hatching of eggs collected from various depths in lake sediments – Freshwat. Biol. 22: 459–470.
  • De Meester L., Gómez A., Okamura B., Schwenk K. 2002 – The monopolization hypothesis and the dispersal-gene flow paradox in aquatic organisms – Acta Oecolog. 23: 121–135.
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  • Fryer G. 1996 – Diapause, a potent force in the evolution of freshwater crustaceans – Hydrobiologia, 320: 1–14.
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  • Hairston N.G. Jr. 1998 – Time travelers: What’s timely in diapause research? – Arch. Hydrobiol. Spec. Issues Advanc. Limnol. 52: 1–15.
  • Hairston N.G. Jr., Van Brunt R.A., Kearns C.M., Engstrom D.R. 1995 – Age and survivorship of diapausing eggs in a sediment egg bank – Ecology, 76: 1706–1711.
  • Havel J.E., Shurin J.B. 2004 – Mechanisms, effects, and scales of dispersal in freshwater zooplankton – Limnol. Oceanogr. 49: 1229–1238.
  • Jankowski T. 2003 – From diapause to sexual reproduction. Evolutionary ecology of the Daphnia hybrid complex from Lake Constance – PhD Thesis, Universität Konstanz, 101 pp.
  • Kerfoot W.C., Budd J.W., Eadie B.J., Vanderploeg H.A., Agy M. 2004 – Winter storms: Sequential sediment traps record Daphnia ephippial production, resuspension, and sediment interactions – Limnol. Oceanogr. 49: 1365–1381.
  • Louette G., De Meester L. 2005 – High dispersal capacity of cladoceran zooplankton in newly founded communities – Ecology, 86: 353–359.
  • Mellors W.K. 1975 – Selective predation of ephippial Daphnia and the resistance of ephippial eggs to digestion – Ecology, 56: 974–980.
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  • Proctor V.W., Malone C.R., De Vlaming V.I. 1967 – Dispersal of aquatic organisms: viability of disseminules recovered from the intestinal tract of captive killdeer – Ecology, 48: 672–676.
  • Vandekerkhove J., Louette G., Brendonck L., De Meester L. 2005a – Development of cladoceran egg banks in new and isolated pools – Arch. Hydrobiol. 162: 339–347.
  • Vandekerkhove J., Declerck S., Jeppesen E., Conde-Porcuna J.M., Brendonck L., De Meester L. 2005b – Hatching of cladoceran resting eggs: temperature and photoperiod – Freshwat. Biol. 50: 96–104.
  • Venable D.L., Brown J.S. 1988 – The selective interactions of dispersal, dormancy, and seed size as adaptations for reducing risk in variable environments – Am. Nat. 131: 360–383.
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  • Wolf H.G., Carvalho G.R. 1989 – Resting eggs of lake-Daphnia II. In situ observations on the hatching of eggs and their contribution to population and community structure – Freshwat. Biol. 22: 471–477.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BGPK-1546-5966
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