Realm: Terrestrial
Climate: Temperate
Biome: Temperate grasslands, savannas and shrublands
Central latitude: 39.983330
Central longitude: -88.650000
Duration: 48 years, from 1924 to 1976

963 records

48 distinct species

Across the time series Downy woodpecker is the most frequently occurring species

Methods

Bird populations in east central Illinois fluctuations variations and development over a half-century. All birds were observed on abandoned farmland plot in Robert Allerton Park (40 ha). Counts are of the numbers of pairs in each year provided. For more detail see Appendix 4: Yearly Breeding Populations (pairs/40 ha) on Abandoned Farmland in Robert Allerton Park - pdf available here https://www.ideals.illinois.edu/handle/2142/25182 Unit of abundance = DensityPer40Ha, Unit of biomass = NA

Citation(s)

Kendeigh, S. C. (1982) Bird populations in east central Illinois: Fluctuations, variations, and development over a half-century. University of Illinois Press.