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RINGED PLOVER Charadrius hiaticula
 
Conservation Listings Long term trend

Table 4/Amber
(Wintering populations)
Biodiversity Steering Group
Conservation Concern List

UK: Unknown
 
Status Summary
Although the breeding population is not monitored annually by the BTO, its distribution has spread inland, especially in England, probably associated with the inrease in number of gravel pits and reservoirs (Gibbons et al. 1993). The recent marked trend towards increasing nest failures at the egg stage is potentially worrying and warrants further investigation. The fail rate for the 27-day egg stage (24 days for incubation + 3 days for laying) has increased from 56% to 70%.
 
Annual breeding population changes for this species
are not currently monitored by BTO
Table of productivity information for Ringed Plover
Variable Period
(yrs)		 Years Mean
annual
sample		 Trend Predicted
in first year		 Predicted
in last year		 Change Comment
Clutch size 30 1968-1998 90 None        
Daily failure rate (eggs) 30 1968-1998 131 Curvilinear 0.0295 nests/day 0.0439 nests/day 0.0144 nests/day  
Laying date 30 1968-1998 42 None        
 
Insufficient data on brood size
available for this species
Insufficient data on nestling failure
available for this species

 

 

 

Insufficient data on CES
available for this species

 
   




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Last updated: 7 March, 2001

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