Annual national population indices of dragonflies in the Netherlands since 1999TimTermaatDe Vlinderstichting Mennonietenweg, 10
Postbus, 506AM WageningenNL-6700The NetherlandsTimTermaatassociatedParty2013-01-31Annual national monitoring data of De Vlinderstichting This metadata was entered by Diana Bowler (BiK-F).
The nationwide data of population indices and information on number of plots are freely available from the URL above.
Important note: if other information or levels of aggregated data are required, resources will need to be made available to pay for the time of De Vlinderstichting staff. Raw data cannot be supplied (as per communication from Tim Termaat to Diana Bowler)
Attached is the data that is freely available on-line as of June 2012. These atatched dragonfly data are not weighted for inconsistencies in distribution of species and transects. Check the above website to see whether an updated file has been released.
Data set owner involvement/permission only necessary if additonal data is needed. See above comments.no restrictionsThe Netherlands (nationwide data)5.55.552.316752.3167199959 speciesSpeciesDragonfliesTimTermaatDe Vlinderstichting Mennonietenweg, 10
Postbus, 506AM WageningenNL-6700The Netherlandsineke.koopmans@vlinderstichting.nl
Fortnightly line transect counts
Line transect counts
Indices are calculated using TRIM (note: there are plans to use a weighting procedure to account for distribution of transects but this has not been done yet -as of June 2012)
Length of the transects depend on habitat quality and availability
Data for 1999 is set to 100 as a reference point
see
http://www.vlinderstichting.nl/actueel.php?id=301
attached_fileNot authorized to access resourceOtherattached_fileNot authorized to access resourceOther
timeseries
yearly