Katipo quest
Further information:
For more information contact;
Margaret Metcalfe
Date: 04 September 2008
Red katipo or Latrodectus katipo are endangered endemic widow spiders that were once abundant on the Wanganui-Manawatu coastline. However, habitat degradation due to loss of native vegetation, the spread of introduced plants like marram grass, and damage to dune systems caused by farming and vehicle use has led to a decline in katipo populations. Competition with introduced spiders such as Steatoda capensis may also threaten katipo.
Katipo spider
Biodiversity Ranger for DOC Lorraine Cook is leading the project to gather useful data on presence of this native species. "While we know that the populations are declining, we're not sure how serious the problem is. This trial survey will help us to determine if it is feasible to run a long-term study of katipo populations so that we can determine the most appropriate ways to conserve them".
The trial survey uses Artificial Cover Objects (ACOs). "This is just a fancy name for nesting boxes" says Ms Cook. "They are made of layers of corrugated organic roofing material". Each month, a team of volunteers will locate and check the ACOs and record details about the inhabitants. Once the trial ends in July 2009, DOC will analyse the data and talk with volunteers to decide how to proceed.
This project is also a trial for long-term volunteer-led projects in the area. Kelly Stratford, Community Relations Ranger for DOC co-ordinates the volunteer programme for the area and is working alongside the biodiversity team. "A year is a long time for volunteers to commit to the project" she says. "We are very grateful as this work would not be done without them".
ACOs have been placed out in various spots at five beaches along the coast; Foxton, Himatangi, Tangimoana, Moana Roa (Scott's Ferry), and Koitiata (Turakina Beach). Reports from the first checks have positively identified katipo settling into the ACOs in three locations so far. "It is important for the study that ACOs are not interfered with", says Ms Stratford. "If you come across a strange-looking object made from black corrugated material with red or yellow tags labelled "Dept. of Conservation" while you are visiting the beach, please do not disturb".