Graph

American Black Duck
(Anas rubripes)

Eastern Waterfowl Breeding Ground Survey

Additional information on: Eastern Waterfowl Breeding Ground Survey

Geographic area or population: Western 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
1990219963170054288469
1991253015191238336269
1992229207173281304706
1993224168169711297811
1994207812160110274409
1995225522170708298401
1996246999191166325334
1997189526148287245138
1998207856163532268245
1999230306179203305526
2000194104151451249076
2001191996152154249412
2002209573164968269695
2003202984159806262177
2004207004160889267860
2005214151168191283307
2006196457153323255742
2007226202175253301050
2008187890147952242447
2009199302155786254800
2010154047120318196157
2011164042128976210707
2012183883143055239978
2013190170149440244356
2014187379145103244124
2015164450126990212818
2016202084155510265725
2017180167140657234405

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