Native Birds Nz

4434 Words Feb 27th, 2012 18 Pages
Observations Of New Zealand Native And Non-Native Birds In Relation To Vegetation Type.
New Zealand’s landscape has changed extensively since the arrival of humans. Now, native and non-native species of both flora and fauna co-exist. People enjoy having wildlife around them and in recent years there has been a great deal of interest in urban wildlife.
This study explores the concept of whether native vegetation fosters the presence of native birds and/or non-native vegetation fosters the presence of non-native birds. My working hypothesis is: “there is no difference in the percentage of native and non-native birds between “gardens” having native or non-native vegetation.” Note: the word “garden” for the purposes of
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Study area and vegetation structure selection:
Two distinctly different types of habitats were selected native vegetation – comprising predominantly of native flora species non-native vegetation – comprising predominantly of introduced flora species to determine differences (if any) in densities of native and non-native birds relative to the type of vegetation present. Two native vegetation areas and two non-native vegetation areas were studied (i.e. four areas in total).
AREA 1: Native Vegetation Area - Gray’s Bush Scenic Reserve (NAT 1)
Gray’s Bush Scenic Reserve is a Department of Conservation managed 12 ha remnant of a podocarp-broadleaf forest. It is located on the north eastern side on the Gisborne flood plains approximately 10 km from the city centre of Gisborne. Gray’s Bush Scenic Reserve is unique in that it is the last surviving stand of the kahikatea/puriri forest type in the Gisborne region (DOC 'Gray's Bush. n.d). The prominent canopy trees are kahikatea and puriri with and understory comprised of nikau, kawakawa, pukatea, mahoe and tawa.
The reserve is surrounded by highly modified landscapes dominated by intensive agricultural and horticultural land use. Common land use for surrounding areas include the growing of cereal crops, grapes and citrus (DOC Gray's Bush. n.d).

The area within the reserve where the observations were completed was at the southern end which has walking tracks, leaving the northern end as undisturbed as
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