ORNITHOLOGICAL OBSERVATIONS IN CIRIC AREA IAŞI COUNTY

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Analele Ştiinţifice ale Universităţii Al.I.Cuza Iaşi, s. Biologie animală, Tom L, 2004 ORNITHOLOGICAL OBSERVATIONS IN CIRIC AREA IAŞI COUNTY BY CARMEN GACHE 1 Key words: Ciric, birds, breeding species, human influence. The Ciric area includes three dam lakes and an artificial forest. In the present note, we give information about the avifauna from Ciric area Iaşi: a taxonomic list, the birds species and breeding status. We notice also some aspects viewing the level of human presence and the influence on the birds populations. Introduction The Ciric River takes it source from Dealul Ciricului (112 meters altitude); it is about 17 kilometres length and has a surface of 58 km 2. It is a tributary river for Bahlui River basin. On this valley, three dam lakes are situated: Ciric I 14 hectares, Ciric II 8 hectares and Ciric III (Veneţia) 7 hectares. These dams were achieved in order to forestall the flooding of the eastern part of Iaşi town and to create a place to pleasure for the inhabitants. In this area, the people come to swim, for sporting fishing and boating. On the slopes, it is present a park-forest about 263 hectares it is a plantation (in order to decrease the gliding risk and to fix the soils) of deciduous trees: Quercus robur, Quercus petraea, Acer platanoides, Acer campestre, Ulmus sp., Tilia sp., Cerasius avium, Malus silvestris and Juglans regia (the last is rare). Near the bank of the water, there are groups of poplars (Populus alba), willows (Salix sp.) and elms (Ulmus sp.). The paludous vegetation covers small areas and is represented by reedbeds Phragmites australis, Phragmites communis, Typha angustifolia and Typha latifolia or small herbs Carex vulpina, Carex nutans, Scirpus lacustris and Juncus gerardi. The meadow and grassland are present on very small areas. The climate is temperate-continental, with an average yearly temperature of 9.3 º C. The summers are dry and warm (usually, in July, the temperature is around 36 38 º C) and the winters are very cold (could be weeks when the temperature is constantly around 15 17 º C below zero). The rainfalls average yearly value is about 517 millimetres. The dominant winds are from the north western, south and north direction. There does not exist any study focused on the birds species situation in Ciric area. We notice that information about the avifauna of Ciric area appears especially in 1 Al.I. Cuza University of Iaşi

Carmen Gache the works of C. V. Mândru and A. Papadopol (2, 5, 6) and in the monographic study about the Prut River basin avifauna published by Carmen Gache (1). Methods of study Our field observations began in 1992 and covers all the phenological periods. We used the method of transects and different counting methods, according to the birds species points of counting (especially during the breeding period), circles counting (for passerines) or night counting (for owls). Transects were established during our first visits and we kept them during the whole study. The principal transects were choised in forest on a distance about 1.5 km, on two parallel lines with the western and eastern shores of the lakes Ciric I - Ciric II; for the lakes Ciric I and Ciric II, the transects follow the whole perimeter; for Ciric III lake, the transect covers the western shore. We used also the ringing method, especially for passerines. Results and discussions During the years, we identified in Ciric area 80 birds species (table 1), 52 being breeding species (65%) and another 7 probably breeding species (figure 1). It is obviously that this great number of the breeding species it is possible because the birds can find habitats for nesting. Must of the breeding species are forest birds species (especially passerine species). We do not know if there exist any really correlation but we noticed, especially during the last two springs, that at the beginning of the breeding season the birds seem to divide their distribution areas. In forest, on the eastern slope, the Turdidae and Sylviidae families species are dominant, than on the western slope the Fringillidae family s species are more numerously. We suppose also that two woodpeckers species are probably breeding species Picus canus and Dendrocopos medius because they are present all the year in this territory and we heard their mating calling in spring, especially in the north eastern part of the forest. Between the breeding species, is present the Hobby (Falco subbuteo) which began nesting on the high buildings from Iaşi in the last three four years and was seen frequently search for him food in Ciric area. The pairs number is small in the territories around the lakes but it is increasing if we are going far away, especially on the eastern slope. This part of the Ciric forest is more peaceful then the rest because there is present only the way to the Iaşi s town airport, so the human presence is no so great like near the lakes. 344

Ornithological observations in Ciric area Iasi county B PB NB Figure no 1. Breeding status of the birds species identified in Ciric area (Iaşi): B breeding species, PB probably breeding species, NB non-breeding species. We must point out the fact that only 15 species are typically for the wetlands. The explanation for this very small number of aquatic or semi-aquatic birds consists in the scarcity of the paludous vegetation. The birds need reedbeds or hydrophyle vegetation in order to build their nests and to hide them in dangerous situation. By the other hand, the human pressure is very high. First, very close to lakes are present a lot of buildings and summer gardens where the Iaşi s inhabitants come to recreate them. There is present a large number of sporting fishing men, especially during the warm season, despite the fishes present in the lakes waters are small and without economical importance. Sometimes, especially on the surface of Ciric I lake, it is possible to meet people which are coming to boating. The aquatic and semi aquatic birds species are present only in passage and in very small groups. For this reason we must notice the presence of the Little Bittern (Ixobrychus minutus) like breeding species this bird species recorded a declining trend and has an unfavorable conservation status in Europe. Also like breeding species appear: Gallinula chloropus (sometimes with two breeding periods), Fulica atra (irregular breeding) and reedbeds passerines (Acrocephalus arundinaceus, A.scirpaceus and Emberiza schoeniclus). Between the probably breeding species are two birds that are living close to water: Larus ridibundus and Alcedo atthis. We did not find the nests of these birds but we saw the both during the breeding season and we saw also juvenile flying birds. Maybe these species are breeding in other side and the birds are coming only to nourishing here. If we regard the birds phenological status (figure 2), the summer visitors are dominant (56.25%), following by the sedentary (22.50%) and passage species (18.75%). 345

Carmen Gache birds species number 50 40 30 20 10 0 SW WV S P Figure no 2. The status of the birds species identified in Ciric Area (Iaşi): SW summer visitors, WV winter or rare winter visitor, S sedentary species, P passage species. During the winter, there are present large groups of Long-eared Owl (Asio otus) during the 2003 s winter, 16 exemplars were living close to the buildings from the eastern shore of Ciric II accumulation and in 2004, we found a group of 28 exemplars in the same area. Sometimes, the inhabitants try to drive away the Long-eared Owls and in the 2002 s winter, it was necessary to call the authorities (Environmental Protection Agency) in order to confiscate one arm and ammunition from a hunter despite the owls are under the protection of the hunting Romanian law. The differences between the Ciric area and Romania birds are not significantly. As we see in the table 1, the aquatic birds and the raptors species appear only in passage because the Ciric area s conditions are not favorable for these species. The birds species number identified in the Ciric area (Iaşi) is small because the wetland s habitat is not so representative, so the aquatic and semi-aquatic birds are present only in passage, in spring or in autumn. The most of the forest birds species, which are representative for the Ciric area avifauna, are present with small populations. The human pressure is high, influencing the breeding species presence and the breeding pairs numbers, especially close to the lakes shores. We are not thinking that during the next years this situation will become more favourable for birds. 346

Ornithological observations in Ciric area Iasi county Table no. 1 Birds species identified in Ciric area Iaşi: and breeding status No. Species Ciric Romania Breeding species 1. Ixobrychus minutes SV SV B 2. Ardea cinerea SV SV, RW 3. Ciconia ciconia P SV 4. Cygnus olor P, SV PM 5. Anas platyrhynchos P PM, WV 6. Anas crecca P P, WV, SV 7. Buteo buteo P PM 8. Falco tinnunculus P PM 9. Falco subbuteo SV SV B 10. Gallinula chloropus SV SV B 11. Fulica atra P PM 12. Larus ridibundus SV PM B? 13. Larus argentatus cachinans SV S 14. Streptopelia decaocto S S B 15. Cuculus canorus SV SV B 16. Athene noctua S S B 17. Asio otus WV S 18. Apus apus SV SV B 19. Alcedo atthis SV PM B? 20. Upupa epops SV SV B 21. Jynx torquilla SV SV B 22. Picus canus SV S B? 23. Picus viridis S S B 24. Dendrocopos major S S B 25. Dendrocopos syriacus S S B 26. Dendrocopos medius S S B? 27. Dendrocopos minor SV SV B 28. Galerida cristata S S B 29. Alauda arvensis SV PM B 30. Riparia riparia SV SV B 31. Hirundo rustica SV SV B 32. Delichon urbica SV SV B 33. Motacilla flava SV SV B 34. Motacilla alba SV SV B 35. Troglodytes troglodytes SV, RW SV, RW B 36. Erithacus rubecula SV SV B 37. Luscinia luscinia SV SV B 347

Carmen Gache No. Species Ciric Romania Breeding species 38. Phoenicurus ochruros SV SV B 39. Phoenicurus phoenicurus SV SV B? 40. Saxicola rubetra SV SV B 41. Oenanthe oenanthe SV SV B 42. Turdus pilaris WV PM, WV 43. Turdus philomelos SV SV B 44. Turdus merula SV PM B 45. Acrocephalus schoenobaenus SV SV B? 46. Acrocephalus scirpaceus SV SV B 47. Acrocephalus arundinaceus SV SV B 48. Hippolais icterina SV SV 49. Sylvia curruca SV SV 50. Sylvia borin SV SV B 51. Sylvia atricapilla SV SV B 52. Phylloscopus collybita SV SV B 53. Regulus regulus P SV 54. Parus palustris P SV 55. Parus caeruleus S S B 56. Parus major S S B 57. Aegithalos caudatus P S 58. Sitta europaea P, SV S B? 59. Certhia familiaris P S 60. Oriolus oriolus SV SV B 61. Lanius collurio SV SV B 62. Garrulus glandarius S S B 63. Pica pica S S B 64. Corvus corax P S 65. Corvus monedula S S B 66. Corvus frugilegus S S B 67. Corvus corone cornix S S B 68. Sturnus vulgaris SV, RW PM B 69. Passer domesticus S S B 70. Passer montanus S S B 71. Fringilla coelebs SV PM B 72. Fringilla montifringilla P WV 73. Serinus serinus P SV 74. Carduelis chloris SV S B 75. Carduelis carduelis S S B 348

Ornithological observations in Ciric area Iasi county No. Species Ciric Romania Breeding species 76. Pyrrhula pyrrhula WV S 77. Coccothraustes occothraustes SV S B 78. Emberiza citrinella S S B 79. Emberiza schoeniclus SV PM B 80. Miliaria calandra SV PM B Explanations: P bird species in passage, WV winter visitors, RW rare winter visitors, SV summer visitors, S sedentary species, PM partial migratory species, B breeding species, B? probably breeding species References 1. Gache, Carmen, 2002 - The bird fauna s dynamics in the Prut River basin, Publ. R.O.S., 15, Cluj-Napoca 2. Mândru, C.V., 1958 - Stud.Cerc.St. biol., st.agric., IX, 1: 97 103, Bucureşti 3. Mititelu, D., Viţalariu, Gh., 1967 - An. St. Univ. Al. I. Cuza Iaşi, s. II.a, XIII, 1: 131 135 4. Munteanu, D., 2001 Dicţionar poliglot al speciilor de păsări din România, ed. a II- a, Publ. S.O.R., 14, Cluj Napoca 5. Papadopol, A., 1965 - Com.Zool., : 159 181, Bucuresti 6. Papadopol, A., Mândru, C.V., 1967 - Com.Zool.: 89 126, Bucureşti 349