Population dynamics of Macropus rufogriseus in the Ballaugh Curraghs region, Isle of Man

Abstract

The main aims of this project were to discover the predominant food source,
distribution, habitat preference and estimate population of Macropus rufogriseus
in the Ballaugh Curraghs area of the Isle of Man. The project aimed to develop a
depth of behavioural and ecological knowledge relating to the population of M.
rufogriseus on this site, as well as adding knowledge relating to northern
hemisphere populations of this species. This follows earlier research on a Peak
District population along with small scale Manx Government research on the
Ballaugh Curraghs site. The research was carried out using field observations
including transect walks, individual tracking and positions of faecal pellets. This
was supported using lab analysis of faecal pellets to determine predominant food
source. Personal communications with members of the public in and around the
study area also helped to develop a well rounded knowledge of the population
and study site. It was observed that grasses, especially species of Festuca, were
the predominant food source along with Birch, Betula pubescens, which was
supported by faecal lab analysis. Individuals preferred the central core of the site
and areas of Dense Scrub. Finally population estimations placed the population
at 10 with projections showing a potential population as high as 42.