Selenium in aquatic birds from central California

Article Abstract:

Researchers investigated selenium concentration in aquatic birds in the Grassland Water District of California in 1989 and 1994. Selenium concentrations in these birds reached levels believed to hinder reproductive function in the early 1980s. This was due to the use of water drained from agricultural land in wetland management operations. This practice ceased in 1985. The study found that selenium concentration levels were lower in 1994 than those revealed in a 1986 investigation but similar to 1988 levels and, for some birds, still above the threshold associated with reproductive impairment.

Natural history

---

Selenium in aquatic birds from central California

Article Abstract:

A study is conducted to measure Selenium concentration in aquatic birds after a long-term use of 20 year of predominately freshwater for wetland management in the North and South Grasslands of California, USA. It is recommended that selenium-contaminated water should not be used for management or allowed as an input into arid wetlands throughout the western United States.

Primary nonferrous metals, not elsewhere classified, Primary Smelting and Refining of Nonferrous Metal (except Copper and Aluminum), Waste Management and Remediation Services, California, Water Pollution, Selenium, Health aspects

---

Birth synchrony and survival of pronghorn fawns

Article Abstract:

The causes of mortality and effects of birth synchrony on the survival of pronghorn fawns at Hart Mountain national Antelope Refuge, are examined.

Mortality, Pronghorn antelope, Pronghorns

Similar abstracts:

• Abstracts: Supercritical fluids as solvents for chemical and materials processing. Relationship between structural order and the anomalies of liquid water
• Abstracts: Behavioral individuality assessed from two strains of cloned fish. Ontogeny of individuality in the domestic cat in the home environment
• Abstracts: Heritability and phenotypic correlations of behaviour and dominance rank of Japanese quail. Subordinates explore but dominants profit: resource competition in high Arctic barnacle goose flocks
• Abstracts: Universities in clash over internet 'libel' allegations. Canadian whistleblower row prompts broader code of conduct
• Abstracts: Fossils, genes and the evolution of animal limbs. Insignificance. Chance and necessity: the evolution of morphological complexity and diversity

This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.