Graph

Ring-necked Duck
(Aythya collaris)

Eastern Waterfowl Breeding Ground Survey

Additional information on: Eastern Waterfowl Breeding Ground Survey

Geographic area or population: Eastern survey core area

Graph showing the trend of the species through out the observed years
 
Listing of the individual data points that make up the graph
YearEstimated Population95% Lower Credible Interval95% Upper Credible Interval
1990503197381942684189
1991452836347725610299
1992466933356415641363
1993437254334742609719
1994423513326221580191
1995445421340558610239
1996582461446442795317
1997510732393248687381
1998439921338608594275
1999528514411853721414
2000554133421858745191
2001497219385906674462
2002506163384009689422
2003515873398236698430
2004565267433338763028
2005524347406129702669
2006532747413753712821
2007671855512888911158
2008536230413581722078
2009528934407878713311
2010532938414792707033
2011508497389908679019
2012503853390110678233
2013615409467509856927
2014485466371311657045
2015501063379614675584
2016572117441185770493
2017462759353039626914

Notes on numeric data: Ex represents 10 to the power of x; For example 1.2345E-2 is equivalent to 0.012345