Implementation of the monitoring system on the effects achieved by management measures in 2005-2008




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Implementation of the monitoring system on the effects achieved by management measures in 2005-2008

Monitoring activities according to the Project Activity F.2 have been carried out to assess impact of project activities on target and other indicator species. We followed the monitoring programme that had been set up before the previous field season and accordingly we used the same principles and methodology as in the two previous years. The programme itself and methods have been described in our first monitoring report in 2005.


As in all three previous years, in 2008 mapping of the indicator bird species was performed twice in each of the Project Areas. To obtain comparable data the bird counting routes were kept the same as in 2006 and 2007. Mapping data were added to the ArcGIS geodatabase and digitally stored as a point layer together with the mapping data of the previous years. The first mapping count in 2008 took place between May 13 and May 28 while the second mapping count – between June 1 and June 19.

  1. Results and discussion

Four years is a minimum when to start analysing population changes that have been taken place in the project areas. Nevertheless, it must be noted that any recorded changes may be caused by yearly fluctuations due to various factors not related with the project activities. To assess, if any of the changes observed are related to management actions, changes in the project areas need to be analysed taking into account the species population changes outside the project territories, i.e. changes in the national population index for the corresponding species. To date such information was available for 4 species (Crex crex, Gallinago media, Lovustella naevia and Locustella fluviatilis) until the year 2007 and is provided in the report. Any geospatial analysis to relate the local changes in occupied territories with management actions carried out in the previous management season is yet to be carried out. The task of this report is summing up this year’s monitoring data and to give a general overview of the changes recorded in the populations of the target and indicator species in the project areas.

Summary of the results of the bird mapping for each count in the period 2005 – 2008 are given in the Table 1.

For better overview we provide the results and their first analysis in two sections: “species accounts” which gives a species by species description of changes and “site accounts” where changes are described territory by territory.



The pair wise statistical comparisons between the counts and between the years were carried out using the Wilcoxon Signed ranks test using SPSS for Windows 16.0 software.
Table 1. Numbers of the main indicator species of the project per Project Area during the period 2005 – 2007

Project Area

Year

Censused area (ha)

Count No

Corncrake

Spotted Crake

Great Snipe

Common Snipe

Grasshopper Warbler

River Warbler

Quail

Sita and Pededze floodplains

2005

590

1

38

0

21

17

16

9

0







2

44

0

17

7

10

44

1




2006




1

46

0

15

28

25

18

0







2

29

0

17-18

16

20

29

0




2007




1

41

4

25

25

11

25

1







2

38

0

28

20

13

20

1




2008




1

44

0

28

29

7

8

0










2

27

0

19

9

13

28

0

Mugurve meadows

2005

295

1

20

3

0

8

5

21

0










2

15

0

0

5

4

30

0




2006




1

13

0

2

12

13

31

0







2

10

0

0

11

19

34

0




2007




1

27

0

4

8

9

36

0







2

20

2

5

4

3

26

0




2008




1

20

0

0

7

5

22

1










2

15

0

0

7

3

21

0

Dviete floodplains

2005

742

1

62

3

16-18

27

1

3

1










2

72

20

22-25

13

4

9

2




2006




1

49

0

20-25

12

12

1

0







2

56

0

0

0

32

17

0




2007

742

1

74(79)

0(0)

12(12)

2(3)

55(57)

23(24)

0(0)




(793)

2

76(79)

0(1)

23(23)

1(2)

52(55)

21(24)

2(2)




2008




1

54(58)

0(0)

15-18(15-18)

0(4)

19(20)

13(13)

0(0)










2

62(64)

0(0)

7-9(7-9)

1(2)

26(27)

18(19)

0(0)

Burga meadows

2005

170

1

22

0

13

1

13

0

0










2

15

1

0 [1]*

2

16

6

0




2006

170 (183)

1

7 (7)

0 (0)

15 (15)

3 (3)

10 (11)

0 (0)

0 (0)




2

12 (13)

0 (0)

14 (14)

1

20 (21)

1

0




2007

170 (183)

1

3 (4)

0 (0)

22 (22)

3 (3)

4 (4)

0 (0)

0 (0)




2

9 (10)

0 (0)

11 (11)

1 (1)

8 (8)

0 (0)

2 (2)




2008




1

21 (22)

0 (0)

17 (17)

3 (3)

10 (12)

0 (0)

0 (0)










2

19 (20)

0 (0)

15 (15)

1 (1)

27 (27)

6 (6)

0 (0)

Meadows of Seda River

2005

190

1

21

4

5

10

11

5

0







2

15

1

7

4

14

13

0




2006




1

38

0

3

6

18

13

0







2

24

0

7

2

25

8

0




2007




1

31

5

8

8

4

1

0







2

21

4

3

5

17

15

1




2008




1

26

1

2

5

14

5

0










2

28

0

7

1

17

19

0

Vidusburtnieks meadow 1

2005

70

1

1

0

0

2

8

0

0







2

2

0

6

0

3

1

0




2006




1

0

0

0

0

9

0

0







2

3

0

0

0

7

1

0




2007




1

2

0

0

2

5

0

0







2

5

0

0

0

7

1

0




2008




1

5

0

0

2

7

0

0










2

5

0

0

2

6

3

0

Vidusburtnieks meadow 2

2005

210

1

2

5

0

3

15

1

0







2

1

1

0 [1]*

3

6

8

0




2006




1

2

0

0

1

15

2

0







2

4

0

0

0

15

9

0




2007




1

2

0

1

3

10

2

0







2

3

1

7

2

21

10

0




2008




1

0

0

0

5

11

3

0










2

0

1

0

2

10

13

0

Ruja floodplains

2005

335

1

5

1

22

17

27

4

0










2

3

0

17

5

29

22

0




2006

335

1

8 (8)

0 (0)

24 (24)

10 (10)

42 (44)

15 (15)

0 (0)




(374)

2

7 (7)

0 (0)

27 (27)

5 (5)

54 (57)

35 (37)

0 (0)




2007




1

9 (9)

0 (0)

20 (20)

16 (16)

17 (17)

15 (21)

0 (0)







2

10 (11)

2 (3)

26 (26)

9 (9)

35 (35)

37 (43)

0 (0)




2008




1

5 (5)

0 (0)

41 (41)

11 (11)

18 (18)

1 (1)

0










2

16 (18)

0 (0)

37 (37)

6 (6)

32 (38)

20 (28)

0 (0)

Burtnieki meadows

2005

175

1

7

4

1

7

8

0

0










2

4

1

1

0

6

3

0




2006




1

1

1

3

6

20

0

0







2

2

0

8

3

17

4

0




2007




1

11

0

1

9

4

1

0







2

9

1

8

5

13

2

0




2008




1

3

0

5

13

0

0

0










2

12

4

14

9

3

3

0

Lielupe floodplains

2005

229

1

32

1

0

0

24

7

0










2

18

0

0

1

32

2

0




2006




1

23

0

0

0

22

6

0







2

0

0

0

0

9

2

0




2007




1

21

0

0

0

30

10

0







2

16

0

0

0

22

3

0




2008




1

27

0

0

0

12

2

0










2

9

0

0

0

12

0

0

Svetes lejtece

2005

819

1

37

0

0

0

17

7

0










2

26

0

0

1

14

3

0




2006




1

55

0

0

2

21

3

0







2

32

1

0

2

28

4

0




2007




1

63

0

0

0

22

4

0







2

51

0

0

0

27

3

3




2008




1

38

0

0

10

17

1

0










2

31

0

0

0

24

4

2

Kalnciems meadows

2005

170

1

17

0

0

0

9

2

0










2

7

0

0

0

7

7

0




2006




1

4

1

0

3

5

7

0










2

0

0

0

0

5

5

0




2007




1

12

0

0

2

11

4

0










2

3

0

0

2

14

6

1




2008




1

7

0

0

2

6

1

0










2

3

0

0

0

9

10

0

Rakupe meadows

2005

135

1

6

0

0

2

2

0

0










2

6

0

0

0

5

5

0




2006




1

3

0

0

1

3

9

0










2

3

0

0

0

1

9

0




2007

135

1

3(3)

0

0

0

2(2)

4(5)

0







(186)

2

5(10)

0

0

0

3(4)

14(14)

0




2008




1

5(5)

0

0

0

5(6)

1(1)

0










2

7(9)

0

0

0

1(3)

4(6)

0

Lake Durbe meadows

2005

77

1

3

0

0

0

5

2

0










2

0

0

0

0

9

1

0




2006




1

0

0

1

3

10

2

0










2

0

1

0

2

12

2

0




2007




1

1

1

0

0

3

0

0










2

2

1

0

0

11

0

0




2008




1

1

1

0

3

7

1

0










2

0

0

0

0

4

0

0

Uzava floodplains

2005

431

1

10

3

0

11

21

0

0










2

12

0

0

0

24

11

0




2006




1

13

1

0

3

20

11

0










2

11

0

0

0

22

4

0




2007




1

9

0

0

5

16

0

0










2

27

0

0

0

28

13

0




2008




1

15

0

0

1

18

5

0










2

19

0

0

1

16

12

0

* figure given in square brackets and marked with an asterisk represent a flushed bird (most likely a female)

figures given in brackets in the “censused area” column represent total area mapped in 2006 if it is different from that in 2005 while figures in brackets in the species columns represent counts for the counted area



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