The Coordinated Waterbird Counts (CWAC) project was launched in 1992. The objective of CWAC is to monitor South Africa's waterbird populations and the conditions of the wetlands which are important for waterbirds. CWAC currently monitors over 400 wetlands around the country on a regular basis, and furthermore curates waterbird data for close to 600 wetlands.

Citation: Animal Demography Unit - Coordinated Waterbird Counts (CWAC)

Published: December 02, 2020 at 14:08

URL: http://ipt.iobis.org/afrobis/resource?r=adu_cwac

OBIS Secretariat
Intergovernmental Oceanographic Commission of UNESCO

Michael Brooks
University of Cape Town; Department of Zoology

Ursula von St Ange
AfrOBIS

Marius Wheeler
University of Cape Town; Department of Zoology

15,827

occurrence records

taxa

species

Taxa

Missing and invalid fields

Field	Missing
coordinateUncertaintyInMeters	15,827	100.0%
maximumDepthInMeters	15,827	100.0%
minimumDepthInMeters	15,827	100.0%
occurrenceStatus	15,827	100.0%
scientificNameID	12	0.1%

Quality flags

The OBIS data quality flags are documented at https://github.com/iobis/obis-qc.

Flag	Records
NO_DEPTH	15,827	100.0%
ON_LAND	14,412	91.1%
NOT_MARINE	59	0.4%
NO_MATCH	6	0.0%

Animal Demography Unit - Coordinated Waterbird Counts (CWAC)

Taxa

Missing and invalid fields

Quality flags

Measurement types

DNA derived data