Conservation of the Unfashionable: Lichens and Bryophytes in the Hauraki Gulf Marine Park
Citation:Blanchon, D. J. (2013). Conservation of the Unfashionable: Lichens and Bryophytes in the Hauraki Gulf Marine Park. Paper presented at Centre for Biodiversity and Biosecurity Workshop Restoration in the Hauraki Gulf, 18th Feb, 2013 Tamaki Campus, University of Auckland. NOTE: ABSTRACT ONLY
Permanent link to Research Bank record:https://hdl.handle.net/10652/2848
The New Zealand lichen and bryophyte floras are highly diverse but are often overlooked in conservation efforts. The islands, estuaries and coastal zones of the Hauraki Gulf Marine Park support a wide range of species of lichens and bryophytes but information on species distributions, threats and critical habitats is not readily available, so is therefore not commonly used in conservation management. Useful information does exist and species lists for some islands and coastal forest remnants have been published in journals such as Tane and the Auckland Botanical Society Journal. Further information can be found in monographs for particular genera. The most complete data can be found in herbarium collections, particularly those in the herbarium of the Auckland Museum and Institute (AK). This and information from other herbarium collections can be accessed online through the New Zealand Virtual Herbarium, although the information is not yet complete and not all collections are databased. National threat listings were done for lichens for the first time in 2012 and for bryophytes for the third time in 2011, and these publications include a number of threatened species found in the Hauraki Gulf Marine Park. Important habitats for lichens include coastal forest, coastal volcanic rocks, broadleaf forest and old mangrove forest. It is generally assumed that restoring native forest will also restore lichen and bryophyte floras, but there is no evidence for this and recent research on the effects of ecological restoration on lichens suggest that some lichens may not compete well with introduced grasses. To include lichens and bryophytes in ecological restoration it is important to restore key native tree substrate species, improve our knowledge of data deficient species, perform population surveys of threatened species, improve our knowledge of individual sites and investigate how to reintroduce species which may have been lost.