An abundance-occupancy time-lag during the decline of an arctiid tiger moth

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Conrad, K. F., Perry, J. N. and Woiwod, I. P. 2001. An abundance-occupancy time-lag during the decline of an arctiid tiger moth. Ecology Letters. 4 (4), pp. 300-303.

AuthorsConrad, K. F., Perry, J. N. and Woiwod, I. P.

The positive interspecific abundance-occupancy relationship is one of the most general patterns in ecology. Positive intraspecific relationships should also exist within species over time, and so a species should occupy more sites in years when it is more abundant. However, positive intraspecific relationships are not as ubiquitous as their interspecific counterparts. It has been hypothesized that low levels of temporal variation and time-lags between changes of abundance and occupancy within species make positive intraspecific relationships difficult to detect. We analyse 31 years of U.K.-wide data on the decline of an arctiid moth, Arctia caja, which provides the first empirical demonstration of an abundance-occupancy time-lag for any species. Such time-lags are probably common and we discuss their impact on the intraspecific abundance-occupancy relationship and their implications for conservation management. In A. caja, the time-lag indicates that the decline of the species is probably not driven by habitat loss.

Year of Publication2001
JournalEcology Letters
Journal citation4 (4), pp. 300-303
Digital Object Identifier (DOI)doi:10.1046/j.1461-0248.2001.00234.x
Open accessPublished as non-open access
Funder project or code433
Project: 4281
Agricultural implications of insect population dynamics and the conservation of biodiversity
Project: 1567
Research into spatio-temporal dynamics for ecological and agricultural populations

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