Effects of Aerial Application of Ddt on Reproduction in House Wrens and Mountain and Western Bluebirds (Classic Reprint) - Softcover

McCluskey, D. Calvin

Softcover

ISBN 10: 0483613762 ISBN 13: 9780483613768

Publisher: Forgotten Books, 2018

Synopsis

A detailed look at how aerial DDT applications affected bird reproduction in a northeast Oregon grassland study.

This nonfiction report follows the effects of spraying technical grade DDT on three common birds—the mountain bluebird, western bluebird, and house wren—over two breeding seasons. It tracks clutch size, hatching success, fledging success, and weight gains in nestlings, alongside insect abundance in sprayed and control areas. The study sites and methods are described to show how researchers compared treated and untreated conditions and interpreted the results.

• Clear measures of reproductive success, including clutch size, hatching, and fledging rates.


• Monitoring of nestling weight gain and development to gauge food availability.


• Comparisons between sprayed and control areas across two years to identify patterns.


• Discussion of factors that can influence results, such as predator activity and bird densities.

The findings suggest no consistent, direct impact of the DDT treatment on egg production or nestling survival, though some year-to-year differences were noted and explained by other factors. The report also includes cautionary notes about pesticide use and the need for proper handling and compliance with registration requirements. Ideal for readers of wildlife field studies and environmental impact research.

Edition details

• Publisher: Forgotten Books
• Publication date: 2018
• Language: English
• ISBN 10: 0483613762
• ISBN 13: 9780483613768
• Binding: Paperback
• Number of pages: 33