Evans, T.M.; Heard, M.S.; Vanbergen, A.J.; Cavers, S.; Ennos, R.

The seed set of Eschscholzia californica plants introduced into habitats comprising different floral cover

This dataset contains seed counts of Eschscholzia californica plants introduced to form experimental arrays within habitats comprising different floral cover. Data was collected in June 2015 at the Hillesden estate, Buckinghamshire, UK. Experimental arrays comprised of three E.californica plants separated by 1m and arranged in a triangular formation. A total of sixteen arrays were introduced across four 100 hectare replicate blocks, each separated by >500m. At the centre of each block, four experimental arrays were placed at 50m intervals along a 150m transect laid symmetrically across the boundary between an established wildflower patch and bare, fallow ground or grazed grassland (two arrays within the florally rich habitat and two arrays within the florally poor habitat). On each plant, the seed set was measured for flowers which were exposed and excluded from pollinators to determine the effects of habitat context on plant reproduction. The dataset was part of a larger experiment looking at the effect of floral resources on the pollination services to isolated plants.

Publication date: 2017-06-13

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Format of the Dataset : Comma-separated values (CSV)

Access and use conditions

This resource is made available under the terms of the Open Government Licence

You must cite: Evans, T.M.; Heard, M.S.; Vanbergen, A.J.; Cavers, S.; Ennos, R. (2017). The seed set of Eschscholzia californica plants introduced into habitats comprising different floral cover. NERC Environmental Information Data Centre. https://doi.org/10.5285/5b400b69-b828-45e8-b04e-7ccbfdb0987f



Study area
Temporal extent
2015-06-01    to    2015-06-30


The same experimental protocol was followed for all Eschscholzia californica plants. All open flowers were removed from the plants prior to their placement in pre-marked locations across the landscape. One bud on each plant was covered in a fine muslin to represent a 'pollinator excluded' flower. Plants remained in the field for 16 days to ensure full anthesis of new flowers and to allow for multiple pollination events. After this period, all fruit were tagged to ensure that only fruit development arising from the period of the field experiment were included in analyses. Plants were then collected and stored under controlled glasshouse conditions until fruit maturation. Upon maturation, tagged fruit were collected and the number of filled seeds per fruit were counted to quantify seed set per fruit. Data are provided as collected.


Evans, T.M.
Centre for Ecology & Hydrology
Heard, M.S.
Centre for Ecology & Hydrology
Vanbergen, A.J.
Centre for Ecology & Hydrology
Cavers, S.
Centre for Ecology & Hydrology
Ennos, R.
University of Edinburgh

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Point Of Contact
Centre for Ecology & Hydrology
Maclean Building, Benson Lane, Crowmarsh Gifford
OX10 8BB
United Kingdom
Environmental Information Data Centre
NERC Environmental Information Data Centre
Environmental Information Data Centre


Spatial representation type
Tabular (text)
Spatial reference system
OSGB 1936 / British National Grid


Topic categories
Other keywords
Environmental Monitoring Facilities
Place keywords
Taxon keywords
Eschscholzia californica
Californian poppy

Dataset identifiers



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Environmental Information Data Centre
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