Otayama Bird-Observatory (1973)
Basic information
Sample name: Otayama Bird-Observatory (1973)

Reference: N. Abe, T. Mano, O. Kurosawa, and H. Hujimura. 1978. A five-year bird ringing at Otayama Bird-Observatory from 1973 through 1977. Journal of the Yamashina Institute for Ornithology 10(1-2):142-171 [ER 2744]
Geography
Country: Japan



Coordinate: 35° 58' N, 136° 1' E
Coordinate basis: stated in text

Geography comments: "Fukui Prefecture... along Echizen coast"

Environment
Habitat: temperate broadleaf/mixed forest

Substrate: ground surface

Disturbance: selective logging

MAT: 15.4

MAP: 1537.0

Habitat comments: "There are scattered coniferous plantations in the vicinity, and in the netting site deciduous broadleaved trees are dominant and these trees are cut down evenly up to 4 or 5m height"
climate data are for Fukui and are from Takahashi et al. (2018, Mycoscience)

Methods
Life forms: birds

Sampling methods: line transect,mist nets,baited

Sample size: 3553 individuals

Years: 1973

Days: 32

Seasons: autumn

Nets or traps: 27

Sampling comments: "Some fifty mist-nets lined up were set an interval of 4-7m in the area. Song and call notes of several species from 1 or 4 tape-recorders were utilized instead of a live decoy birds"
sampling was during October and/or November each year
a mix of 6 and 12 m nets and of 24 and 36 mesh nets was apparently used, and the number of 12 m net equivalents varied considerably from year to year and within seasons
it went from 18 to 35.5 in 1973 and from 9 to 36 to 46.5 to 56.5 in 1974, and it was fixed at 52, 48, and 48 nets during 1975, 1976, and 1977
I use midpoint values of 26.75 and 37 for 1973 and 1974 because that's close enough

Metadata
Sample number: 2916

Contributor: John Alroy

Enterer: John Alroy

Created: 2018-04-25 09:03:29

Modified: 2018-04-25 00:00:23

Abundance distribution
38 species
4 singletons
total count 3553
geometric series index: 48.4
Fisher's α: 5.942
geometric series k: 0.8273
Hurlbert's PIE: 0.8499
Shannon's H: 2.3778
Good's u: 0.9989
Each square represents a species. Square sizes are proportional to counts.
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