The effect of eroded ecological networks on the movement of harvest mice (Micromys minutus)

Howard-Williams, E., Littlemore, J., McCormick, W. D. and McCollin, D. (2016) The effect of eroded ecological networks on the movement of harvest mice (Micromys minutus). Seminar Presentation presented to: 5th Postgraduate Research Symposium, Moulton College, Northampton, 15 December 2016.

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Abstract:

Habitat fragmentation and degradation of ecological networks have been identified as an influencing factor of M. minutus population viability, although, this has yet to be fully quantified. Within a specially designed release enclosure located in semi-improved grassland, various sized gaps were created in cross sections of ‘hard’ (artificial road surface 4.8m) and ‘soft’ (mown, with low vegetative cover 1m, 2m and 4.8m). Movements of a reintroduced population of M. minutus (Soft ♂N=5, ♀N=9; Hard ♂N=8, ♀ N=13) over these gaps were recorded. Whilst both genders crossed narrower fragments that have ground vegetation, as gap width increased willingness to cross decreased significantly (P < 0.001). The implications here suggest that gaps over just 2m will impede movement and dispersal of both sexes, with potential genetic implications on M. minutus populations.

Subjects:

Q Science > QH Natural history > QH540 Ecology

Creators:

Howard-Williams, E., Littlemore, J., McCormick, W. D. and McCollin, D.

Faculties, Divisions and Institutes:

University Faculties, Divisions and Research Centres - OLD > Moulton College

Date:

15 December 2016

Date Type:

Publication

Event Title:

5th Postgraduate Research Symposium

Event Dates:

15 December 2016

Event Location:

Moulton College, Northampton

Event Type:

Conference

Language:

English

Status:

Published / Disseminated