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Berger's Clouded Yellow (Colias alfacariensis)

On this page, we have made available all the information we have for this species

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Picture of Berger's Clouded Yellow
© Eddie John

The Berger's Clouded yellow occurs in Britain as a rare migrant. It is widespread over much of Europe where it breeds on unimproved calcareous grassland where its larval foodplant Horseshoe Vetch (Hippocrepis comosa) grows. (For further details on this species see http://www.butterfly-conservation.org/).


Family : Pieridae

Status : Insufficient information

Status details : Insufficient information

Log collated index plot

blank LCI plot - no data available

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 :
There are no records of this butterfly on BMS transects.

This map shows the distribution between 1995 and 2016. Data is derived from the Butterflies for the New Millenium dataset via the NBN Gateway

Phenology plot
Species Phenology Plot

Phenology plot

This chart shows the average number of butterflies seen on transects between Arpil and October across all sites (fitted values from a Generalised Additive Model). The blue line gives average counts over the full BMS series (1976 to date) and the red line gives the average for the last year.

blank abundance map - no data available

Abundance

This map shows symbols for the mean abundance at transect sites, with the colour of the symbol reflecting the level of abundance. Means are over all years. Grey background squares are the occupied cells as shown by the Butterflies for the New Millenium over the previous ten year period.


Coverage

In total, Berger's Clouded Yellow has been recorded from 1 transects in the Butterfly Monitoring Scheme. Of these, annual indices of abundance have been calculated from 4 sites, with an average index of 0 individuals per site.

For 0 of these sites, Berger's Clouded Yellow has been recorded well enough to calculate annual indices of abundance in more years, allowing trends to be calculated.

In 2009, 6 individuals were recorded from 3 sites, producing annual indices at 3 of these.

Links to counts

1983,2003,2006,2009


The UKBMS is run by  Butterfly Conservation (BC), the Centre for Ecology and Hydrology (CEH) and the British Trust for Ornithology (BTO), in partnership with the Joint Nature Conservation Committee (JNCC), and supported and steered by Forestry Commission (FC),  Natural England (NE), Natural Resources Wales (NRW), Northern Ireland Environment Agency (NIEA), and Scottish Natural Heritage (SNH). The UKBMS is indebted to all volunteers who contribute data to the scheme.