Graph

American Black Duck
(Anas rubripes)

Eastern Waterfowl Breeding Ground Survey

Additional information on: Eastern Waterfowl Breeding Ground Survey

Geographic area or population: Central Boreal Shield

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
1990132704103346169854
199111867592053151156
199211422688829146552
199310343275690139791
19949110866439122715
199510437676381140274
1996162793124218217519
199712020790301161586
199812507796214162867
1999146286112097188598
200012145595039157694
200112780498305166370
2002167814127225222254
2003157489119974211681
2004146489112865193778
2005140768109318186751
2006134790102190182463
2007154357117290213254
2008156344119069207711
200912616795957168194
2010138427105147186320
20119943374177133372
201212720295554172827
2013146888115630187936
2014138097103040188737
201511552383778162105
201613346696945191543
201713232995394188388

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