Biodiversity & Conservation

, Volume 15, Issue 11, pp 3591–3616 | Cite as

Distinctive invertebrate assemblages in rockface seepages enhance lotic biodiversity in northern New Zealand

Article

Abstract

We measured water quality, recorded physical habitat characteristics and collected aquatic invertebrates from 17 rockface seeps, five springs and five streams in a geologically diverse region of New Zealand's North Island to investigate factors influencing invertebrate distribution and community composition within and among these habitats. A total of 147 aquatic invertebrate taxa was found; 84 taxa occurred in seepage samples and 53% of these were found only in those habitats, including several new species. Where paired stream-seepage comparisons could be made, seeps contributed on average 35% of new species to the total species pool. The invertebrate faunas of all habitats were dominated taxonomically by Trichoptera and Diptera, but seepages were relatively depauperate in Ephemeroptera and richer in Coleoptera taxa compared to streams and springs. Seepage faunas were dominated numerically by Mollusca, and had lower percent abundance of aquatic insects (23% overall) compared to springs (77%) and streams (93%). Seepages underlain by different geologies generally had distinct water quality signatures, with seeps draining greywacke, sandstone and volcanic rocks grouping close to their receiving streams in a Principal Component Analysis. Seepage invertebrate community composition reflected underlying geology and associated differences in water chemistry, as well as seepage size and cover by moss. Incorporation of seepage habitats into conservation planning and aquatic ecosystem protection, and maintenance of their function and connectivity with lotic and groundwater ecosystems are important considerations for freshwater biodiversity management. Maintenance of riparian plant cover over seepages should help sustain supplies of organic matter, moss cover and shade, providing habitat complexity and low water temperatures.

Keywords

Connectivity Ecotone Geology Macroinvertebrate New Zealand Riparian Seep Spring Stream Water quality 

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References

  1. Clarke K.R. and Gorley R.N. (2001). Primer v5: User manual/tutorial. Primer_E, Plymouth, U.KGoogle Scholar
  2. Clarke K.R. and Warwick R.M. (2001). Change in Marine Communities: An Approach to Statistical Analysis and Interpretation. 2nd ed. Primer-E Ltd, Plymouth, U.KGoogle Scholar
  3. Dietrich M. and Anderson N.H. (1990). Temporary stream communities in western Oregon: life histories of dominant mayflies and stoneflies. Northwest Science 64: 105Google Scholar
  4. Dietrich M. and Anderson N.H. (2000). The invertebrate fauna of summer-dry streams in western Oregon. Archiv für Hydrobiologie 147: 273–295Google Scholar
  5. Glazier D.S. (1991). The fauna of North American temperate cold springs: patterns and hypotheses. Freshwater Biology 26: 527–542CrossRefGoogle Scholar
  6. Gomi T., Sidle R.C. and Richardson J.S. (2002). Understanding processes and downstream linkages of headwater systems. Bioscience 52: 905–916CrossRefGoogle Scholar
  7. Gregory S.V., Swanson F.J., McKee W.A. and Cummins K.W. (1991). An ecosystem perspective of riparian zones. Bioscience 41: 540–551CrossRefGoogle Scholar
  8. Haase M. (1996). The radiation of spring snails of the genus Belgrandiella in Austria (Mollusca: Caenogastropoda: Hydrobiidae). Hydrobiologia 319: 119–129CrossRefGoogle Scholar
  9. Haase M. and Bouchet P. (1998). Radiation of crenobiontic gastropods on an ancient continental island: the Hemistomia-clade in New Caledonia (Gastropoda: Hydrobiidae). Hydrobiologia 367: 43–129CrossRefGoogle Scholar
  10. Hoffsten P.-O. and Malmqvist B. (2000). The macroinvertebrate fauna and hydrogeology of springs in central Sweden. Hydrobiologia 436: 91–104CrossRefGoogle Scholar
  11. Hogg I.D., Eadie J.M. and de LaFontaine Y. (1998). Atmospheric change and the diversity of aquatic invertebrates: are we missing the boat?. Environmental Monitoring and Assessment 49: 291–301CrossRefGoogle Scholar
  12. Leathwick J., Wilson G., Rutledge D., Wardle P., Morgan F., Johnston K., McLeod M. and Kirkpatrick R. (2003). Land Environments of New Zealand. David Bateman, AucklandGoogle Scholar
  13. McCraw J.D. (1971). The geological history of the Waikato River basin. In: Duncan, C. (eds) The Waters of the Waikato, pp 11–23. University of Waikato, HamiltonGoogle Scholar
  14. Meyer J.L. and Wallace J.B. (2001). Lost linkages in lotic ecology: rediscovering small streams. In: Press, M.C., Huntly, N.J. and Levin, S. (eds) Ecology: Achievement and Challenge, pp 295–317. Blackwell Publishing, Oxford, U.K.Google Scholar
  15. Meyers M.J. and Resh V.H. (2002). Trichoptera and other macroinvertebrates in springs of the Great Basin: species composition, richness and distribution. Western North American Naturalist 62: 1–13Google Scholar
  16. Pringle C.M. (2001). Hydrological connectivity and the management of biological reserves: a global perspective. Ecological Applications 11: 981–998CrossRefGoogle Scholar
  17. Scarsbrook M.R. (2000). Life-histories. In: Collier, K.J. and Winterbourn, M.J. (eds) New Zealand Stream Invertebrates: Ecology and Implications for Management, pp 76–99. The New Zealand Limnological Society, ChristchurchGoogle Scholar
  18. Scarsbrook M.R., Quinn J.M. and Boothroyd I.K.G. (2000). Reply: A balanced approach to interpretation of data. New Zealand Journal of Marine and Freshwater Research 34: 746–749Google Scholar
  19. Smith H. (2002). The hydro-ecology of limestone springs in the Wye Valley, Derbyshire. Journal of the Chartered Institution of Water and Environmental Management 16: 253–259CrossRefGoogle Scholar
  20. Smith H. and Wood P.J. (2002). Flow permanence and macroinvertebrate community variability in limestone spring systems. Hydrobiologia 487: 45–58CrossRefGoogle Scholar
  21. Suren A.M. (1991). Bryophytes and associated invertebrates in first-order alpine streams of Arthur's Pass, New Zealand. New Zealand Journal of Marine and Freshwater Research 27: 479–494CrossRefGoogle Scholar
  22. Suren A.M. (1993). Bryophytes as invertebrate habitat in two New Zealand alpine streams. Freshwater Biology 26: 399–418CrossRefGoogle Scholar
  23. Tockner K., Pennetzdorfer D., Reiner N., Schiemer F. and Ward J.V. (1999). Hydrological connectivity, and the exchange of organic matter and nutrients in a dynamic river-floodplain system (Danube, Austria). Freshwater Biology 41: 521–535CrossRefGoogle Scholar
  24. Ward J.V. (1989). The four-dimensional nature of lotic ecosystems. Journal of the North American Benthological Society 8: 2–8CrossRefGoogle Scholar
  25. Ward J.V. and Tockner K. (2001). Biodiversity: towards a unifying theme for river ecology. Freshwater Biology 46: 807–819CrossRefGoogle Scholar
  26. Ward J.V. and Weins J.A. (2001). Ecotones of river ecosystems: Role and typology, spatio-temporal dynamics and river regulation. Ecohydrology and Hydrobiology 1: 25–36Google Scholar
  27. Ward J.V., Tockner K., Arscott D.B. and Claret C. (2002). Riverine landscape diversity. Freshwater Biology 47: 517–539CrossRefGoogle Scholar
  28. Wards I. (1976). New Zealand Atlas. A.R. Shearer Government Printer, WellingtonGoogle Scholar
  29. Wilcock H.R., Nichols R.A. and Hildrew A.G. (2003). Genetic population structure and neighbourhood population size estimates of the caddisfly Plectrocnemia conspersa Freshwater Biology 48: 1831–1824CrossRefGoogle Scholar

Copyright information

© Springer 2006

Authors and Affiliations

  1. 1.National Institute of Water and Atmospheric ResearchHamiltonNew Zealand
  2. 2.Environment WaikatoHamiltonNew Zealand

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