New Zealand Hot Science
	NZES Home > Publications > HotScience > List A...Z
NZES webpages: Search on keyword(s): all site N.Z.J.Ecol. Newsletter Hotscience powered by FreeFind Search tips			Introduction   |  Submission Rules   |  New additions alphabetical by first author: | A | B  | C  | D  | E  | F  | G  | H  | I  | J  | K  | L  | M  | N  | O  | P  | Q  | R  | S  | T  | U  | V  | W  | X  | Y  | Z  |
			Search on keyword(s): Hotscience
			HotScience last updated: 19 February 2003 J... Jeffries, D.S. & Brunton, D.H. 2001. Attracting endangered species to ‘safe’ habitats: responses to fairy terns of decoys. Animal Conservation 4: 301-305. The New Zealand fairy tern is considered an endangered subspecies. The aims of this study were to quantify fairy tern responses to decoys and sound recordings and determine the viability of this technique for re-establishment of this species in protected habitat. Sixteen decoy trials were conducted at Papakanui Spit (36º06’ S, 174º36’ E). The decoy models were effective in attracting fairy terns to a specific area with >80% of landing episodes occurring in the decoy plots. The effectiveness of attracting terns to a specific site has potential as a safe and efficient means of trapping adults away from the nest. Joy M. K.; Death R. G. 2000. Stream invertebrate communities of Campbell Island. Hydrobiologia 439: 115-124. Stream invertebrates were sampled at nineteen streams on Campbell Island over the 1997-98 summer in the most extensive stream survey to date. The Crustacea including one isopod and two amphipod species dominated the species-poor stream invertebrate communities. Although distinctive communities were found over the island they did not relate to any of the environmental variables measured. Many of the invertebrate families commonly found in mainland New Zealand streams were not found and this appears to be related to the extreme isolation and geological history of the island. Joy M. K.; Death R. G. 2001. Control of freshwater fish and crayfish community structure in Taranaki, New Zealand: dams, diadromy or habitat structure? Freshwater Biology 46: 417-429. This paper investigates the relationship between fish and crayfish communities and environmental variables at a number of scales from proximal to landscape on the Taranaki ring plain. The analysis showed elevation, distance from the coast and dams were the strongest predictors of fish and crayfish assemblages. Dams had greater impacts at lower elevation and landscape scale variables proved more important than proximal habitat variables in structuring fish communities. Joy, M. K.; Death, R. G. 2002. Predictive modelling of freshwater fish as a biomonitoring tool in New Zealand. Freshwater Biology 47: 2261–2275. The paper describes the first application of a regional predictive model using freshwater fish for bioassessment in New Zealand. Fish assemblages were surveyed at 200 reference sites in the Manawatu–Wanganui region. These “reference sites” represent the best available conditions covering the full range of stream types in the region. They were used to predict the fish assemblages to be expected in the absence of impacts using multivariate analysis based on environmental variables. Test site fish assemblages were compared with expected assemblages using weighted probabilities from reference sites using an observed over ex-pected (O/E) ratio.
Home.  |  About  |   Awards  |  News  |  Publications  |   Meetings  |  Listserv  |  Education  |  Advocacy  |   Join  |  Contact us  |  Links © 2002-2003. New Zealand Ecological Society, Inc. Webmaster: Jon Sullivan (webmaster@nzes.org.nz)