Odonata - Entomological Society of Latvia - Latvijas Daba

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Table 2. Potential southern species for the fauna of Latvia and presence of each species is indicated for the adjacent countries – Estonia (EE), European part of Russia (RU), Belarus (BY) and Lithuania (LT). For each species the approximate distance (D) in kilometres to the nearest foreign locality and the source of this record is given. Species D Source EE RU BY LT 13. Lestes barbarus 440 Buczyński et al. 2006 - + + - 14. Lestes viridis 130 Stanionytė 1993 - - + + 15. Sympecma fusca 430 Buczyński, Moroz 2008; Ivinskis, - + + + Rimšaitė 2010 16. Coenagrion ornatum 180 Buczyński et al. 2006 - + + - 17. Erythromma viridulum 150 Buczyński, Moroz 2008; Ivinskis, - + + + Rimšaitė 2010 18. Aeshna affinis 60 Bernard 2005; Buczyński, Moroz 2008 - + + + 19. Aeshna serrata 50 Martin et al. 2008 + + - - 20. Orthetrum albistylum 430 Buczyński, Moroz 2008 - + + - 21. Orthetrum coerulescens 60 Stanionytė 1993; Martin et al. 2008 + + - + 22. Sympetrum depressiusculum 10 Stanionytė 1963, 1991 - + + + 23. Sympetrum meridionale 300 Skvorcov 2010 - + + - 24. Crocothemis erythraea 600 Skvorcov 2010 - +? - - Species distribution changes. According to zoogeographical classification (Udvardy 1975; Taglianti et al. 1999; Крыжановский 2002), species with Palearctic and West Palearctic distribution type are mainly represented in dragonfly fauna of the Latvia. Only 15 % species have Holarctic distribution (Figure 2). Exceptions are Mediterranean-Afrotropical species Anax ephippiger, West Palearctic-Afrotropical species Anax imperator and Mediterranean-Palearctic species Sympetrum fonscolombii. Mediterranean- West Afrotropical Palearctic- 2 % Afrotropical 2 % Holarctic 16 % Mediterranean- Palearctic 2 % West Palearctic 38 % Palearctic 40 % Figure 2. Zoogeographical classification of the dragonfly species occurring in Latvia. The data was collected from 839 squares that constitute 30 % of all squares covering Latvia (Figure 3). The quality of the data is diverse. This is reflected in the number of species recorded within one grid square (Figure 4). For 53 % of the studied squares the quality of data is low as the number of recorded species does not exceed 5. The data is qualitatively moderate (6-10 species / square) for 53
22 % of studied squares, good (11-20 species / square) for 19 %, and very good (>20 species / square) for 6 % of the units. The maximal value is 39 species per one square. Historical (1778- 1990) data was collected for 369 squares (13 % of all squares covering Latvia), and current (1991- 2010) data for 655 squares (23 %). Figure 3. Coverage of squares with data collected in the historical (1778-1990) and current (1991- 2010) period. Figure 4. Coverage of squares, expressed as the number of species recorded in a grid square. The number of dragonfly observations (entries in the data base) varies between 685 observations of Libellula quadrimaculata to one observation of Anax ephippiger and Orthetrum 54
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LATVIJAS UNIVERSITĀTE Bioloģijas
Page 3 and 4: SATURS / CONTENT 1. IEVADS.........
Page 5 and 6: 1.2. PĒTĪJUMA MĒRĶIS, DARBA UZD
Page 7 and 8: Citas publikācijas Kalniņš M., J
Page 9 and 10: 2. MATERIĀLI UN METODES Pamatdati.
Page 11 and 12: izmantota standartizēta paraugu ie
Page 13 and 14: 3. REZULTĀTI 3.1. SPĀRU FAUNISTIS
Page 15 and 16: Dati par spārēm aptver 839 kvadr
Page 17 and 18: 3. tabulas turpinājums Taksons Aes
Page 19 and 20: Pēc procentuālā seguma transekt
Page 21 and 22: 3.3. GOMPHIDAE DZIMTAS SPĀRU KĀPU
Page 23 and 24: 11. attēls. Nehalennia speciosa iz
Page 25 and 26: Ophiogomphus cecilia. Suga konstat
Page 27 and 28: 16. attēls. Leucorrhinia pectorali
Page 29 and 30: sugas ar ļoti plašiem vai plašie
Page 31 and 32: faktors ir tas, cik kokaugu veģet
Page 33 and 34: sastopama oļu un akmeņu mikrobiot
Page 35 and 36: Salīdzinot sugas apdzīvotos bioto
Page 37 and 38: meklējumiem īpaši aizsargājamo
Page 39: 6. PATEICĪBAS Paldies darba vadīt
Page 42 and 43: The Doctoral thesis was developed i
Page 44 and 45: 1.2. THE AIM, TASKS AND THESES The
Page 46 and 47: Kalniņš M. 2006. The distribution
Page 48 and 49: 2. MATERIAL AND METHODS Basic data.
Page 50 and 51: 2.3. RESEARCH OF THE OCCURRENCE AND
Page 52 and 53: Figure 1. The location of dragonfly
Page 56 and 57: unneum (Table 3). 59 distribution m
Page 58 and 59: 3.2. THE SPATIAL DISTRIBUTION OF DR
Page 60 and 61: Figure 7. Correlation between veget
Page 62 and 63: Pe 5% Gr 15% Co 12% Ma 3% Mu 26% De
Page 64 and 65: Figure 12. A distribution of Aeshna
Page 66 and 67: Figure 14. A distribution of Leucor
Page 68 and 69: 4. DISCUSSION 4.1. THE CHANGES IN D
Page 70 and 71: many other issues are not specific
Page 72 and 73: habitats of open or wooded bogs. Ac
Page 74 and 75: of its localities. This general cor
Page 76 and 77: Figure 19. A distribution of Aeshna
Page 78 and 79: suitability of a habitat is charact
Page 80 and 81: 6. ACKNOWLEDGEMENTS My thanks to my
Page 82 and 83: De Marmels J., Schiess H. 1977. Zum
Page 84 and 85: Niemelä J., Kotze J., Ashworth A.,
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Odonata - Entomological Society of Latvia - Latvijas Daba

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