A determination of the economic status of the western meadowlark (Sturnella neglecta) in California

Author(s)
Bryant, Harold C.
Year
Article Title
A determination of the economic status of the western meadowlark (Sturnella neglecta) in California
Volume
11
Issue
14
Pages
377-510
Start Page Number
377
Final Page
510
Review

Datapoints

Displaying 1 - 11 of 11 datapoints.
Species: Western Meadowlark (Sturnella neglecta)
Exposure Endpoint Type Endpoint Description Endpoint Value Sample Size Units Life Cycle Stage Specific Location Range California Counties Type
Dietary Composition percent contribution to the diet by volume, based on stomach content analyses grain (30.8), weed seed (5.3), miscell. vegetable (0.6), Coleoptera (21.3), Orthoptera (20.3), Lepidoptera (12.2), Hemiptera (1.7), Hymenoptera (5.6), Diptera (0.1), Arachnida (0.2), miscell. insects (1.9) ~2,000 stomachs % Not Reported Exposure Factor Datasets
Population Density 23-67 birds counted birds/acre Not Reported Los Banos, Merced 0.1-1.0 Merced Exposure Factor Datasets
Time of Nesting length of nesting period Mar-Aug Not Reported Adult Exposure Factor Datasets
Clutches or Litters per year usual number of nesting attempts per year 2 Not Reported nests/yr Adult Exposure Factor Datasets
Clutch or Litter Size usual number of eggs laid 5 Not Reported eggs/clutch Adult Exposure Factor Datasets
Hatching Success estimated average brood size 3 Not Reported young/clutch Juvenile Exposure Factor Datasets
Duration of Incubation or Gestation observed range of incubation periods Not Reported d Embryo 12-14 Exposure Factor Datasets
Time of Fledging or Metamorphosis observed number of days chicks spent in nest Not Reported d Fledgling 8-10 Exposure Factor Datasets
Growth Rate average increase in body weight 7 2 nests g/d Nestling Exposure Factor Datasets
Body Weight - Mean body weight of average adult 4.00 Not Reported oz Adult Exposure Factor Datasets
Body Weight - Mean body weight of day-old nestling 0.25 2 nests oz Nestling Exposure Factor Datasets

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