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Meadow Brown (Maniola jurtina)
© Eddie John
The Meadow Brown is a very common species of open grassland occurring in all but the most highly managed grasslands and those at high altitude. Medium-leaved grasses seem to be preferred as larval hostplants. (For further details on this species see http://www.butterfly-conservation.org/).
Family: Satyridae
Status: Stable
Status details:
Status since 1976 is Stable with an increase of 26.8%
Status over the last 20 years is Stable with an increase of 12.6%
Status over the last 10 years is Stable with a decrease of -9.8%
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:
The trend for this species is positive but not significant, though nearly so. Fluctuations in abundance are large and appear to follow a cyclic pattern of periods of increase followed by periods of decline indicating an interaction with parasitoids. This common grassland butterfly is the most frequently recorded species on BMS transects.
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, Meadow Brown has been recorded from 919 transects in the Butterfly Monitoring Scheme. Of these, annual indices of abundance have been calculated from 1069 sites, with an average index of 388 individuals per site.
For 484 of these sites, Meadow Brown has been recorded well enough to calculate annual indices of abundance in 6 or more years, allowing trends to be calculated.
In 2006, 321872 individuals were recorded from 651 sites, producing annual indices at 524 of these.
