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White Admiral (Limenitis (Ladoga) camilla)
© Eddie John
The White Admiral is a true woodland butterfly preferring shadier woodland than most butterfly species where its larvae feed on the straggly growth of Honeysuckle (Lonicera periclymenum) in the dappled shade of trees. The butterfly is continuing to expand its range in Britain. (For further details on this species see http://www.butterfly-conservation.org/).
Family: Nymphalidae
Status: Rapid decline
Status details:
Status since 1976 is Rapid decline with a decrease of -55.8%
Status over the last 20 years is Stable with a decrease of -13.4%
Status over the last 10 years is Stable with an increase of 54.8%
Back to the topLog collated index plot
This chart shows the index of abundance (LCI = Log Collated Index) over time. It shows fluctuations in populations from year to year, and is scaled so that the average index over the whole series is equal to 2 (horizontal line). For greater detail about how this index is derived, click on the green question mark above.
Trend description:
Although the collated indices show large apparently cyclic fluctuations in the abundance of this species, the overall trend shows a highly significant decline. There have been strong declines at a number of sites but few increases. It has probably become extinct at Kingley Vale in West Sussex even though there is plenty of woodland on the site. At some sites the populations remain fairly stable. The biggest increases have been at Bure Marshes in the Norfolk Broads, where the species has successfully colonised the site and it has been recorded on the transect every year since 1988, and at Stour Wood in Essex, where numbers have increased dramatically. It is not apparent why this species should be declining overall, particularly as the species is expanding its range in Britain as indicated in the Millennium Atlas.
Distribution...
This map shows the distribution between 1995 and 1999. Data is derived from the Butterflies for the New Millenium dataset via the NBN Gateway (www.searchnbn.net).
View the distribution on the NBN GatewayPhenology...
Phenology plot
Phenology plot
This chart shows the average number of butterflies seen on transects between Arpil and October. The black line gives average counts over the full BMS series (1976 to date) and the red line gives the average for the last year.
Abundance...
Abundance
This map shows symbols for the mean abundance at transect sites, with the size of symbol reflecting the level of abundance. Means are over all years.
Coverage
In total, White Admiral has been recorded from 304 transects in the Butterfly Monitoring Scheme. Of these, annual indices of abundance have been calculated from 287 sites, with an average index of 9 individuals per site.
For 140 of these sites, White Admiral has been recorded well enough to calculate annual indices of abundance in 6 or more years, allowing trends to be calculated.
In 2006, 2164 individuals were recorded from 114 sites, producing annual indices at 99 of these.
This map shows the trend in abundance at particular transect sites. Trends (increasing, declining or stable) are assessed at sites where the species has more than five years of annual index data. Click on the green question mark next to the species name above for more details on how trends are calculated.
Links to lists of sites with particular statuses
• Extinct sites (10)
• Colonised sites (8)
- Stable sites (68)
- Declining sites (17)
- Increasing sites (13)
