The use of knock-down tags to detect changes in occupancy among burrow-nesting seabirds : what is an adequate sample size? / by A.J. Gaston and B.T. Collins.: CW69-9/172E-PDF
"A major problem in taking a census of burrow-nesting seabirds is to decide what proportion of burrows is actually occupied. Where burrows are long, it may be necessary to dig one or more access tunnels to find the nest chamber and determine whether it is occupiect by a bird, egg or chick. The disturbance thus created may cause birds to desert and may alter the structure of the breeding habitat. In either case this affects the chances of future occupation. If the census is being conducted to detect population trends, such disturbances will reduce the validity of subsequent observations. Hence, there is a definite need for a method of determining burrow occupancy with minimum disturbance"--Introd.
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| Title | The use of knock-down tags to detect changes in occupancy among burrow-nesting seabirds : what is an adequate sample size? / by A.J. Gaston and B.T. Collins. |
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| Publication type | Monograph - View Master Record |
| Language | [English] |
| Other language editions | [French] |
| Format | Digital text |
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| Description | 4 p. : charts |
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