Project maps and graphs | Ark in the Park

Rat catch early 2013

Sat, 18 May 2013 18:54:32 +1200

There is evidence of post-baiting population in two sections of the internal part of the Ark, one in the north and one in the south. These are indicated by red markers ie persistence is interpreted as March catch, or monitoring tunnel prints - a catch in February which did not repeat in March can be regarded as showing response to baiting. Comparing this with the previous map, the northern area is new, but the southern one is possibly a continuation from mid-2012.

Rat catch Winter 2012

Sat, 18 May 2013 18:47:03 +1200

This shows rat presence between the end of the Autumn baiting in May, and the start of the Spring-Summer baiting. See the next map for rat presence following this baiting.

Whitehead Survey 2012

Sun, 25 Nov 2012 10:53:25 +1300

Here are the results of the 2012 survey. Map produced, using Quantum GIS software, by Laurence Bechet, with assistance from Cameron Wilson.

Monitoring results in Ark: after baiting started

Mon, 01 Oct 2012 14:57:36 +1300

This graph shows the same results as the previous page, but with the pre-baiting results excluded. The smaller vertical axis is now able to show variations more sensitively.

Whitehead survey 2011

Tue, 25 Sep 2012 20:24:33 +1200

In 2011 volunteers spread out to walk circuits at several widely spaced locations throughout the Waitakeres. Following a standard protocol, they stopped at intervals to listen for the song of whiteheads. Whiteheads have had two releases, both in the Ark area, but they are known to be highly mobile birds who disperse widely. Laurence Béchet has used Quantum GIS software to produce this map which shows the location of these circuits and monitoring spots.

Mustelid catch November and December 2011

Sat, 21 Jan 2012 10:35:54 +1300

Every year, early Summer sees an explosion in the number of invading mustelids, as the females leave their nest and take their litter with them. The pattern of catches is of clusters in the same area, reflecting the movement of these groups.

Rat catch May to August 2010

Thu, 23 Sep 2010 12:33:43 +1200

Rat catch January to April 2010

Thu, 23 Sep 2010 12:24:38 +1200

Mustelid trap catch 2009-2010

Thu, 23 Sep 2010 12:12:37 +1200

Mustelid trap catch 2008-2009

Thu, 13 Aug 2009 16:51:38 +1200

Stoat catch by month 2004-2008

Sun, 05 Oct 2008 11:07:43 +1300

"Owned" bait lines

Wed, 01 Oct 2008 14:05:58 +1300

Mustelid trap catch 2007-2008

Tue, 30 Sep 2008 12:59:30 +1300

Mustelid trap catch 2006-2007

Tue, 30 Sep 2008 12:55:39 +1300

Monitoring results outside the Ark

Tue, 30 Sep 2008 10:44:17 +1300

Monitoring results within the Ark: Before baiting and after

Tue, 30 Sep 2008 10:37:43 +1300

Rodent monitoring lines

Wed, 17 Sep 2008 16:58:36 +1200

Predator control

Tue, 22 Apr 2008 13:33:53 +1200