Cynipid abundance at Petite Charnie, France, in 2008 and 2009
This dataset contains Cynipid gall abundance from an oak provenance trial at Petite Charnie in France. 2400 trees were sampled from 20 provenances of Quercus petraea and Quercus robur in 2008 and 2009. Cynipids have two gall generations each year so trees were sampled in spring (sexual generation) and autumn (asexual generation). 10 twigs were surveyed for galls on all parts of the terminal shoot (buds, leaves, stem, catkins) from each tree in spring and autumn. Counts were made for each species and generation.
dataset
http://eidc.ceh.ac.uk/metadata/1c99f7ad-6ae3-4891-801c-e3babdb61887/zip_export
name: Supporting information
description: Supporting information available to assist in re-use of this dataset
function: information
https://catalogue.ceh.ac.uk/download?fileIdentifier=1c99f7ad-6ae3-4891-801c-e3babdb61887
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1440169589772
CEH:EIDC:
eng
urn:ogc:def:crs:EPSG
4326
biota
Environmental monitoring facilities
publication
2008-06-01
Environmental monitoring facilities
Cynipids
gallwasps
oak
provenance trial
asexual generation
sexual generation
Andricus foecundatrix
Andricus glandulae
Andricus solitarius
Neuroterus albipes
Neuroterus anthracinus
Neuroterus quercusbaccarum
Neuroterus numismalis
Cynips divisa
Cynips quercusfolii
Andricus testaceipes
Quercus robus
Quercus petraea
La Petite Charnie
-0.191
-0.143
48.108
48.056
2008-05-15
2009-10-09
publication
2015-08-21
notPlanned
Samples were taken from an established provenance trial. Provenances are represented by two or three distinct plots (parcelles), each a replicate set of 24 trees planted in four columns of six trees, with spacing of 1.75 meters between trees within columns and three meters between columns. Plots of 8 different randomly selected provenances are aggregated into blocks, with the position of blocks randomised within soil zones. Samples were taken from a subset of provenances from trees in the internal rows of the blocks to minimise edge effects. Cynipid gall abundance was sampled using a standardised sampling protocol. 10 twigs on each tree, each consisting of the last two years' growth, were removed and for each twig the galls on all parts (buds, leaves, stem, catkins) of its terminal shoot (a module of woody growth from the previous year carrying the new leaves) were counted. Galls were identified to species and generation in the field using a morphological key and extensive field experience of the surveyors. After data collation and transcribing into electronic format, unusual values were checked.
Comma-separated values (CSV)
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© Centre for Ecology & Hydrology (Natural Environment Research Council)
Centre for Ecology & Hydrology
pointOfContact
Centre for Ecology & Hydrology
author
Edinburgh University
author
Centre for Ecology & Hydrology
author
Centre for Ecology & Hydrology
author
NERC Environmental Information Data Centre
publisher
Environmental Information Data Centre
custodian
Environmental Information Data Centre
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Lancaster
LA1 4AP
UK
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2018-09-28T08:25:01