+ Site Statistics
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

Ganzjaehrige Erfassung von Voegeln in einem kleinen Feuchtgebiet in der Aareebene (Kanton Solothurn) waehrend 22 Jahren



Ganzjaehrige Erfassung von Voegeln in einem kleinen Feuchtgebiet in der Aareebene (Kanton Solothurn) waehrend 22 Jahren



Ornithologische BeobachterMaerz; 103(1): 13-38



For 22 years weekly surveys of birds were carried out in a small oxbow lake (total area 5 ha) near Grenchen in the Aare plain (Canton of Solothurn, Switzerland). During each thirty-minute survey all individuals of all species were recorded. Birds on the ground (users) were distinguished from individuals only recorded flying (overflyers). Overall, 165 bird species were recorded, on average 19.7 species per visit (16.0 users, 3.7 overflyers). Mean species richness was highest during spring and autumn migration and lowest in winter and during the breeding season. Eight species reached a monthly presence (calculated as a percentage of the counts lying in the middle of each of the 264 months) of more than 50 %, Blackbird (93 %), Yellowhammer and Carrion Crow (89 % each) being the most frequent. Calculated from the monthly presence, 10 out of the 40 most frequent species recorded as users showed a significant decline, 7 an increase. Among the winners were species relying on bushes and trees. The numbers of individuals of user species was influenced by flocking species. Without Tree Sparrow and Common Starling 55 individuals were recorded on average per visit, with a minimum in winter and a maximum during autumn migration. Several weather factors, recorded at the start of each visit, affected the number of species recorded. The number of overflyers was correlated negatively with fog and precipitation, the number of both overflyers and users negatively with strong winds. The oxbow lake is the only significant wetland in the agricultural area of the Aare plain and a locally important stop-over site, in particular for dabbling ducks and waders, which also use the adjacent fields during periods of flooding.

Please choose payment method:






(PDF emailed within 1 workday: $29.90)

Accession: 022697079

Download citation: RISBibTeXText


Related references

Year-round surveys of birds in a small wetland in Switzerland 1983-1994 Ganzjaehrige Erfassung von Voegeln in einem kleinen Feuchtgebiet in der Aareebene Kanton Solothurn waehrend 22 Jahren. Ornithologische Beobachter. Maerz; 1031: 13-38, 2006

Verhalten von Voegeln an einem Flugplatz bei Haguenau/Elsass waehrend der totalen Sonnenfinsternis am 11. August 1999. 2000

Tagfalter im Kanton Solothurn. Liste uber die in den Jahren 1976-1984 festgestellten Arten. Mitteilungen der Naturforschenden Gesellschaft in Solothurn, 32: 241-246, 1986

The avian fauna of the Aare plain to the west of Solothurn Die Vogelwelt der Aareebene westlich von Solothurn. Mitteilungen der Naturforschenden Gesellschaft des Kantons Solothurn, 37: 9-118, 1996

Occurrence of migrants passerines in winter in the Aare plain near Solothurn Switzerland Wintervorkommen von Zugvogeln Singvogel in der Aareebene bei Solothurn. Ornithologische Beobachter. Juni; 972: 105-122, 2000

Population trend and migration of the northern lapwing Vanellus vanellus in the Aare plain near Solothurn Bestandsentwicklung und Durchzug des Kiebitzes Vanellus vanellus in der Aareebene bei Solothurn. Ornithologische Beobachter. September; 1043: 173-188, 2007

Changes in population size of red-backed shrikes Lanius collurio in the Aare plain west of Solothurn Switzerland Bestandsentwicklung des Neuntoeters Lanius collurio in der Aareebene westlich von Solothurn. Ornithologische Beobachter. Dezember; 974: 338-342, 2000

Die Vogelwelt der Aareebene westlich von Solothurn. 1996

From the herb layer to the tree crown - research and evaluation of forest edges in the Solothurn canton Vom Krautsaum bis ins Kronendach - Erforschung und Aufwertung der Waldraender im Kanton Solothurn. Mitteilungen der Naturforschenden Gesellschaft des Kantons Solothurn, 39: 9-39, 2002

Behaviour of birds at an airport near Haguenau/Alsace during the total solar eclipse of 11th August 1999 Verhalten von Voegeln an einem Flugplatz bei Haguenau/Elsass waehrend der totalen Sonnenfinsternis am 11 August 1999. Ornithologische Jahreshefte fuer Baden-Wuerttemberg. Oktober; 161: 75-76, 2000

Wintervorkommen von Zugvogeln (Singvogel) in der Aareebene bei Solothurn. 2000

1O jahrige Brutvogelbestandsaufnahmen auf drei Probeflachen in der Aareebene westlich von Solothurn. Ornithologische Beobachter, 882: 81-100, 1991

Die Saatkrahe Corvus frugilegus als neuer Brutvogel in der Aareebene westlich von Solothurn. Ornithologische Beobachter 89(3): 199, 1992

Bestandsruckgang von Dorngrasmucke Sylvia communis und Grauammer Miliaria calandra in der Aareebene westlich von Solothurn. Ornithologische Beobachter, 882: 141-143, 1991

The Late Miocene mammal fauna of Nebelbergweg near Nunningen Solothurn canton, Switzerland Die jungmiozaene Saeugetierfauna vom Nebelbergweg bei Nunningen Kanton Solothurn, Schweiz. Schweizerische Palaeontologische Abhandlungen, 121: 1-61, 2001