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Page 1 – 15 septembre 2015 Wing Moult Chronology, Duration and Synchronicity in Captive Harlequin Ducks, Surf Scoters, White-winged Scoters and Long-tailed.

Published byDerrick Cameron Modified over 9 years ago

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Presentation on theme: "Page 1 – 15 septembre 2015 Wing Moult Chronology, Duration and Synchronicity in Captive Harlequin Ducks, Surf Scoters, White-winged Scoters and Long-tailed."— Presentation transcript:

1 Page 1 – 15 septembre 2015 Wing Moult Chronology, Duration and Synchronicity in Captive Harlequin Ducks, Surf Scoters, White-winged Scoters and Long-tailed Ducks 3 rd North American Sea Duck Conference Château Laurier, Québec Dr. Jean-Pierre L. Savard Science and Technology 10-14 November 2008

2 Page 2 – 15 septembre 2015

3 Page 3 – 15 septembre 2015 Authors Jean-Pierre L. Savard (S&T, EC) Matthew C. Perry (USGS) Jean-François Savard (Univ. Maryland) Alicia M. Wells-Berlin (USGS) Scott G. Gilliland (CWS)

4 Page 4 – 15 septembre 2015

5 Page 5 – 15 septembre 2015

6 Page 6 – 15 septembre 2015

7 Page 7 – 15 septembre 2015

8 Page 8 – 15 septembre 2015

9 Page 9 – 15 septembre 2015 Preliminary results Morphometry

10 Page 10 – 15 septembre 2015 Comparison of male and female weights

11 Page 11 – 15 septembre 2015 Male and female Wing Chord

12 Page 12 – 15 septembre 2015 Length of 9th primary

13 Page 13 – 15 septembre 2015 Correlation between morphometric measurements (males and females of all species) WeightTarsusCulmen Culmen width 9 th primary Weight Tarsus0.917 Culmen0.9170.913 Cul-width0.9350.8660.973 9th0.9850.9250.9290.954 Wing0.9860.9220.9090.9300.996

14 Page 14 – 15 septembre 2015 Differences in moult chronology between species

15 Page 15 – 15 septembre 2015 Comparison of moult chronology between species: males

16 Page 16 – 15 septembre 2015 Comparison of moult chronology between species: females

17 Page 17 – 15 septembre 2015 Differences in moult chronology between sexes

18 Page 18 – 15 septembre 2015 Difference in moult chronology between males and females

19 Page 19 – 15 septembre 2015 Difference in moult chronology between males and females

20 Page 20 – 15 septembre 2015 Preliminary statistics (Anova) Males initiated moult 7.2 ± 2.4 days earlier than females (P = 0.0044) LTDU started moult 17.9 ± 3.6 days earlier than HADU (P = 0.0002) SUSC started 23.8 ± 3.4 days earlier than HADU (P = 0.0000)

21 Page 21 – 15 septembre 2015 WWSC 15.7 ± 2.7 days earlier than HADU (P = 0.000) WWSC 8.1 ± 3.5 days later than SUSC (P = 0.1538) WWSC and LTDU: +2.2 ± 3.5 days (P = 0.9397) SUSC and LTDU: -5.9 ± 4.1 days (P = 0.5660)

22 Page 22 – 15 septembre 2015

23 Page 23 – 15 septembre 2015

24 Page 24 – 15 septembre 2015 9th primary growth rate Not constant Slow in first week Fast in following 3 weeks Slowing gradually in last 3 weeks Seems to slow down after fligth capability has been regained

25 Page 25 – 15 septembre 2015 White-winged Scoter males (Growth: mm/day)

26 Page 26 – 15 septembre 2015 White-winged Scoter females (Growth: mm/day)

27 Page 27 – 15 septembre 2015 Surf Scoter males: growth (mm/day)

28 Page 28 – 15 septembre 2015 Surf Scoter females: growth rate (mm/day)

29 Page 29 – 15 septembre 2015 Long-tailed Duck males: growth rate (mmm/day)

30 Page 30 – 15 septembre 2015 Long-tailed Duck females: growth rate (mm/day)

31 Page 31 – 15 septembre 2015 Harlequin Duck females: growth (mm/day)

32 Page 32 – 15 septembre 2015 Harlequin Duck males: growth rate (mm3day )

33 Page 33 – 15 septembre 2015 Harlequin Duck males: growth rate (mm/day )

34 Page 34 – 15 septembre 2015 Mean growth rate (mm/day) (3 weeks with the greatest growth rates) Males (9th mm)Females WWSC4.66 (178) 4.58 (169) SUSC4.26 (154) 4.19 (148) LTDU4.70 (142) 4.57 (134) HADU3.94 (131) 3.90 (129) BAGO (van de Wetering 1997) 3.30 to 4.10 2.35 to 4.62

35 Page 35 – 15 septembre 2015 Length of fligthless period (80%) MalesFemales WWSC3631 SUSC3332 LTDU2826 HADU3129

36 Page 36 – 15 septembre 2015 9th primary length in captured moulting Surf Scoters on the Labrador coast

37 Page 37 – 15 septembre 2015 Surf Scoter 629 J-9 J-23 J-15 J-30 A-6 A-14 A-21 A-27 S-3 S-10 O-8

38 Page 38 – 15 septembre 2015 July 23 (old) July 15 (old) July 8 (old)

39 Page 39 – 15 septembre 2015 August 14 (40) August 6 (6) July 30 (0)

40 Page 40 – 15 septembre 2015 August 21 (63)

41 Page 41 – 15 septembre 2015 September 10 (136) September 3 (120) August 27 (89)

42 Page 42 – 15 septembre 2015 October 8 (155) September 24 (155) September 17 (153)

43 Page 43 – 15 septembre 2015

44 Page 44 – 15 septembre 2015 Merci Thank you

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