Offspring size as an index of habitat degradation.

Author(s)
Warkentin, I.G., Reed, J.M. and Dunham, S.M.
Volume
3
Issue
2
Start Page Number
145
Final Page
153

Datapoints

Displaying 1 - 9 of 9 datapoints.
Species: American Robin (Turdus migratorius)
Exposure Endpoint Type Endpoint Description Endpoint Value Sample Size Units Condition Life Cycle Stage Specific Location Countries Type
Population Density San Juan: 0.10; Stewart: 0.06; Clear: 0.07 Not reported per 100 net-hours/km2 Breeding Adult Toiyabe Mountains in Lander and Nye Counties USA Exposure Factor Datasets
Clutches or Litters per year 2 to 3 Not reported Clutch/y Breeding USA Exposure Factor Datasets
Time of Nesting San Juan: May 22; Stewart: May 27; Clear: June 5 Not reported Breeding Adult USA Exposure Factor Datasets
Clutch or Litter Size Initial: 3.8; 8 d: 2.5; 8 d successful only: 3.2 Not reported Eggs/nest Breeding Embryo San Juan canyon; Toiyabe Mountains in Lander and Nye Counties USA Exposure Factor Datasets
Clutch or Litter Size Initial: 3.5; 8 d: 1.9; 8 d successful only: 3.0 Not reported Eggs/nest Breeding Embryo Stewart canyon; Toiyabe Mountains in Lander and Nye Counties USA Exposure Factor Datasets
Clutch or Litter Size Initial: 3.6; 8 d: 1.7; 8 d successful only: 3.3 Not reported Eggs/nest Breeding Embryo Clear canyon; Toiyabe Mountains in Lander and Nye Counties USA Exposure Factor Datasets
Body Weight - Mean Mean egg mass San Juan: 6.6; Stewart: 6.9; Clear: 7.2 Not reported g Breeding Embryo Toiyabe Mountains in Lander and Nye Counties USA Exposure Factor Datasets
Hatching Success Nests with at least 1 yound d 8 San Juan: 21; Stewart: 18; Clear: 9 Not reported Nests Breeding Embryo Toiyabe Mountains in Lander and Nye Counties USA Exposure Factor Datasets
Hatching Success Nests with no losses after d 8 San Juan: 8; Stewart: 3; Clear: 5 Not reported Nests Breeding Embryo Toiyabe Mountains in Lander and Nye Counties USA Exposure Factor Datasets

Comment

Please let us know if the information on this page is helpful for you. Enter your comment and leave your email address if you would like to receive a response. Thank you!
OEHHA is subject to the California Public Records Act and other laws that require the release of certain information upon request. If you provide comments, please be aware that your name, address and e-mail may be available to third parties. In addition, all public comments will be posted on our web site upon the close of the comment period.
OEHHA California Office of Environmental Health Hazard Assessment