@article {15677, title = {Evaluation of biological soil properties as indicators of flying ash deposition from lignite power plants in the Florina - Kozani basin}, journal = {Fresenius Environmental BulletinFresenius Environmental BulletinFresenius Environmental Bulletin}, volume = {18}, number = {7B}, year = {2009}, note = {ISI Document Delivery No.: 495DYTimes Cited: 0Cited Reference Count: 24}, pages = {1289-1294}, type = {Article}, abstract = {In the Kozani - Florina basin (Northern Greece) five power stations are functioning using lignite as fuel. In this study, we assess both the indicator value of soil microbial diversity using the biolog method and the nematode abundance in relation to the flying ash deposition capacity as expressed by certain heavy metal concentrations. Soil samples were collected from fields and two forest covered sites at various distances from the stations on alluvial and Pliocene deposit, following a general direction from South to North (or vice versa). Results showed that increased values of heavy metal concentrations and low values of the biological variables appeared near the older station of Ptolemais, suggesting that the effects are correlated with chronic ash deposition. The results from the rest stations did not show a specific pattern that could be attributed to the flying ash.}, keywords = {area, ash, Biolog method, Biological indicators, biomass, CARBON-SOURCE UTILIZATION, diversity, Florina-Kozani, flying, Greece, HEAVY-METALS, LICHENS, MICROBIAL COMMUNITIES, MICROORGANISMS, nematodes, pollution, soil bacteria}, isbn = {1018-4619}, author = {Monokrousos, N. and Bobori, D. and Tsiafouli, M. and Boutsis, G. and Chalkos, D. and Vlachodimos, K. and Kladas, E. and Blake, K. and Pyrovetsi, M. and Papatheodorou, E. and Sgardelis, S. and Symeonidis, L. and Diamantopoulos, I.} } @article {5345, title = {Foraging ecology of the Grey Heron (Ardea cinerea), Great Egret (Ardea alba) and Little Egret (Egretta garzetta) in response to habitat, at 2 Greek wetlands}, journal = {Colonial WaterbirdsColonial Waterbirds}, volume = {20}, number = {2}, year = {1997}, note = {TY - JOURCited By (since 1996): 6Export Date: 7 September 2006Source: ScopusReferences: Cezilly, F., Boy, V., Age related differences in foraging Little Egrets, Egretta garzetta (1988) Colonial Waterbirds, 11, pp. 100-106; Cezilly, E., Boy, V., Hafner, H., Group foraging in Little Egrets (Egretta garzetta): From field evidence to experimental investigation (1990) Behavioural Processes, 21, pp. 69-80; Draulans, D., The effect of prey density on foraging behaviour and success of adult and first-year Grey Herons (Ardea cinerea) (1987) Journal of Animal Ecology, 56, pp. 479-493; Draulans, D., Van Vessem, J., Symons, F., Multivariate analysis of factors affecting foraging success of Grey Herons (Ardea cinerea) at a fish-farm in winter (1986) Annals of the Belgian Zoological Society, 116, pp. 247-261; Erwin, R.M., Feeding behavior and ecology of colonial waterbirds: A synthesis and concluding comments (1983) Colonial Waterbirds, 6, pp. 73-82; Erwin, R.M., Hafner, H., Dugan, P., Differences in the feeding behavior of Little Egrets (Egretta garzetta) in two habitats in the Camargue, France (1985) Wilson Bulletin, 97, pp. 534-538; Fasola, M., Resource use of foraging herons in agricultural and nonagricultural habitats in Italy (1986) Colonial Waterbirds, 9, pp. 139-148; Fasola, M., Rosa, P., Canova, L., The diets of Squacco Herons, Little Egrets, Night, Purple and Grey Herons in their Italian breeding range (1993) Revue Ecologie (Terre et Vie), 48, pp. 35-47; Hafner, H., (1977) Contribution a l{\textquoteright}Etude Ecologique de Quatre Especes de Herons (Egretta G. 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(1980) Transactions of the Linnaean Society of New York, 9, pp. 135-158; Recher, H.R., Holmes, R.T., Davis Jr., W.E., Morton, S., Foraging behavior of Australian herons (1983) Colonial Waterbirds, 6, pp. 1-10; Richardson, J.R., Harris, T.T., Williges, K.A., Vegetation response to various environmental parameters in the Lake Okeechobee marsh ecosystem (1995) Archiv fur Hydrobiologie Special Issue in Advanced Limnology, 45, pp. 41-61; Rodgers Jr., J.A., Foraging behavior of seven species of herons in Tampa Bay, Florida (1983) Colonial Waterbirds, 6, pp. 11-23; Smith, J.P., Richardson, J.R., Collopy, M.W., Foraging habitat selection among wading birds (Ciconiiformes) at Lake Okeechobee, Florida, in relation to hydrology and vegetative cover (1995) Archiv fur Hydrobiologie Special Issues in Advanced Limnology, 45, pp. 247-285; Sokal, R.R., Rohlf, F.J., (1981) Biometry, 2nd Ed., , Freeman, New York; Tatarakis, E., Fisheries management at Lake Kerkini (1995) Sustainable Management of the Water of Lake Kerkini, pp. 97-108. , (K. Skordas and M. Anagnostopoulou, Eds.). Greek Biotope/Wetland Centre (EKBY), Thessaloniki, Greece; Van Vessem, J., Draulans, D., Spatial distribution and time budget of radio-tagged Grey Herons Ardea cinerea, during the breeding season (1987) Journal of Zoology, 213, pp. 507-534; Wiggins, D.A., Foraging success and aggression in solitary and group feeding Great Egrets (Casmerodius albus) (1991) Colonial Waterbirds, 14, pp. 176-179.}, month = {1997///}, pages = {261-272}, abstract = {We studied the responses of 3 heron species, Grey Heron (Ardea cinerea), Great Egret (A. alba) and Little Egret (Egretta garzella) to different foraging habitats in 2 Greek wetlands of international importance, Lakes Mikri Prespa and Kerkini, These lakes are different in their hydrology, productivity and vegetation cover. Parameters of foraging tactics - such as strike rate, foraging effort expended per min and effort expended per strike - as well as parameters of foraging efficiency - such as striking efficiency, captures per unit effort and biomass intake per unit effort - were analyzed in relation to habitat and lake. Each species adopted different tactics and achieved variable efficiencies in response to the particular lake, habitat conditions and prey characteristics. Little Egrets revealed the greatest plasticity in their foraging repertoire, especially with regard to their mobility and prey preference. Great Egrets and Grey Herons consumed larger amounts of biomass per unit effort than did Little Egrets, with Great Egrets achieving the highest striking efficiency. Riverine habitats proved to be more profitable than marshes for all 3 species, while wet meadows seemed to play a complementary role for herons{\textquoteright} foraging.}, keywords = {Ardea alba, Ardea cinerea, Aves, Egretta garzetta, Foraging behavior, Foraging efficiency, Foraging habitat, Greece, Lake Kerkini, Lake Prespa, Wading birds}, author = {Dimalexis, A. and Pyrovetsi, M. and Sgardelis, S.} }