The possibility of application of Sørensen and Renkonen indexes in the study of winter avifauna in small plots of the urban green areas
DOI:
https://doi.org/10.12775/v10090-009-0007-yKeywords
Sørensen index, Renkonen index, species composition, winter avifauna, urban avifaunaAbstract
Quantitative studies of winter avifauna (1999/2000) were conducted in three fragments of urban green areas in central Poland. Two observers independently controlled three plots six times, doing two subsequent counts (10 ha/1.5 hour) on the same day. All visits that were carried out in the same plot by the same observer during the same time of day were defined as a "survey". Differences between maximum and minimum values of similarity in species composition (Sørensen index - QS) and dominance structures (Renkonen index - Re) between two plots during all "surveys" ranged from 8.4 to 11.9% (QS) and from 11.8 to 22.4% (Re). Coefficients of variation (CV) for values of Sørensen and Renkonen indexes obtained for similarity of winter avifauna between two plots during all "surveys" ranged from 4.9 to 7.6% (QS) and from 8.9 to 14.1% (Re). Significant differences were found in one case between values of similarity in species composition (QS) obtained by two observers between two different plots (Mann-Whitney test, U = 0.0, n = 8, P = 0.02). The results show that there is no possibility to estimate clearly the similarity of dominance structure (Re) and, to a lesser degree, species composition (QS) of winter avifauna between two small fragments of the urban green areas.References
Biaduń W., 1994, Winter avifauna of urban parks and cemeteries in Lublin (SE Poland), Acta Ornithol. 29: 15 - 27.
Biaduń W., 1996a, Ptaki lęgowe i zimujące osiedli mieszkaniowych w Lublinie [Breeding and wintering avifauna of the housing estates in Lublin], Notatki Ornitol. 37: 83 - 95.
Biaduń W., 1996b, Ptaki ogródków działkowych w Lublinie [Avifauna of the allotment gardens in Lublin], Notatki Ornitol. 37: 247 - 258.
Brauze T. & Zieliński J., 2003, Intrapersonalne i interpersonalne różnice pomiędzy wynikami ilościowych badań zimowych nad awifauną wybranych gatunków krukowatych Corvidae w zieleni miejskiej [Intra- and inter-personal differences in results of quantitative winter studies on selected species of corvids Corvidae in urban green areas], [in:] A. Przystalski & B. Wilczyńska (eds.), Zoologia na progu XXI wieku [Zoology at the beginning of the 21st century], PZITS, Toruń: 96 - 97.
Brauze T. & Zieliński J., 2004, Bogactwo gatunkowe i wykrywalność gatunków awifauny zimowej na niewielkich powierzchniach zieleni miejskiej [Species richness and detectability of winter avifauna species on small urban green areas], [in:] P. Indykiewicz & T. Barczak (eds.), Fauna miast Europy Środkowej XXI wieku [Urban fauna of Central Europe in the 21st century], LOGO, Bydgoszcz: 531 - 536.
Brauze T. & Zieliński J., 2006, Are winter species composition and abundance censuses of birds in small urban green areas comparable?, Acta Ornithol. 41: 93 - 101. DOI: http://dx.doi.org/10.3161/068.041.0205
Brewer R., 1978, A comparison of three methods of estimating winter bird populations, J. Field Ornithol. 49: 252 - 261.
Clergeau P., Jokimäki J. & Savard J.-P. L., 2001, Are urban bird communities influenced by the bird diversity of adjacent landscapes?, J. Appl. Ecol. 38: 1122 - 1134.
Donald P. F., Haycock D. & Fuller R. J., 1997, Winter bird communities in forest plantations in western England and their response to vegetation, growth stage and grazing, Bird Study 44: 206 - 219. DOI: http://dx.doi.org/10.1080/00063659709461056
Fannes C. A. & Bystrak D., 1981, The role of observer bias in the North American breeding bird survey, [in:] C. J. Ralph & J. M. Scott (eds.), Estimating the numbers of terrestrial birds, Stud. Avian Biol. 6: 353 - 359.
Górska E. & Górski W., 1980, Zimowanie ptaków w Poznaniu [Birds wintering in Poznań], Acta Ornithol. 17: 271 - 295.
Jokimäki J. & Suhonen J., 1998, Distribution and habitat selection of wintering birds in urban environments, Landsc. Urban Plann. 39: 253 - 263. DOI: http://dx.doi.org/10.1016/S0169-2046(97)00089-3
Källander H., Nilsson S. G. & Svensson S., 1977, The Swedish Winter Bird Census Programme, Pol. Ecol. Stud. 3: 77 - 88.
Luniak M., 1980, Birds of allotment gardens in Warsaw, Acta Ornithol. 17: 297 - 319.
Nilsson S. G., 1974, Methods of estimating bird population densities during the winter, Ornis Scand. 5: 37 - 46. DOI: http://dx.doi.org/10.1016/S0169-2046(97)00089-3
Rosenstock S. S., Anderson D. R., Giesen K. M., Leukering T. & Carter M. F., 2002, Landbird counting techniques: current practices and an alternative, Auk 119: 46 - 53.
Tomiałojć L., 1970, Badania ilościowe nad synantropijną awifauną Legnicy i okolic [Quantitative studies on the synanthropic avifauna of Legnica and its environs], Acta Ornithol. 12: 293 - 392.
Tomiałojć L., 1974, Charakterystyka ilościowa lęgowej i zimowej awifauny lasów okolic Legnicy (Dolny Śląsk) [The quantitative analysis of the breeding and winter avifauna of the forests in the vicinity of Legnica (Lower Silesia)], Acta Ornithol. 14: 59 - 97.
Tomiałojć L., 1992, Czy wyniki metody kartograficznej są porównywalne pomiędzy oddzielnie pracującymi, niedoświadczonymi obserwatorami? [Are the mapping technique results comparable between inexperienced observers working independently?], Notatki Ornitol. 33: 131 - 139.
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