12 



( Terrapene ) were severely reduced over the entire study area (3600 acres), 4 

 being found dead within 50 feet of each other (Baker, et al.. , unpubl.)- Turtle 

 populations have continued depressed on this area during the second year. 

 Studies are continuing. 



In Vermillion Parish, Louisiana, 4 dead and 2 live sliders ( Pseudemys ) 

 were found soon after treatment (Glasgow, letter). 



In St. Landry Parish, Louisiana, 2 dead skinks (Eumeces) and 2 dead cha- 

 meleons (Anolis) were found. None was seen alive [29T^ In Vermillion Parish, 

 3 dead skinks and 1 dead chameleon were found; none was seen alive (Glasgow, 

 letter). 



f. Effects on Amphibians . The frogs show the same stratified sus- 

 ceptibility to heptachlor granules that is evidenced in the birds; ground 

 dwellers ( Rana ) are severely reduced in numbers, whereas tree frogs ( Hyla , 

 Acris ) are often able to maintain normal numbers despite some mortality around 

 breeding ponds. 



On the Wilcox County, Alabama study area, 4 species of the genus Rana virtu- 

 ally disappeared soon after treatment in 1958 and did not return in 1959. Tree 

 frogs and salamanders ( Pesmoqnathus ) seemed unaffected (Baker, et _al . , unpubl.). 



Other studies also indicate that amphibians were affected. In Autauga 

 County, Alabama, Kelley and Allen (letter) report dead and dying frogs were 

 numerous; early observations in Decatur County, Georgia, revealed mortality of 

 frogs in a plot checked by Rosene and DeWitt [33]. Other studies in Decatur 

 County indicated little effect [33]. In Jefferson County, Florida, Strode 

 (unpubl.) reported that large numbers of dead frogs were observed. Little evi- 

 dence of damage to aquatic life was reported in Concordia Parish, Louisiana [46]; 

 but dead frogs were found in St. Landry Parish, and in Vermillion Parish 7 dead 

 ground frogs ( Rana ) were found and none was seen alive, whereas 2 live tree 

 frogs ( Acris ) were seen and none was found dead (Glasgow, letter). 



g. Effects on Fish . In the Wilcox County, Alabama, area Baker et al. 

 (unpubl.) reported most adult fish were killed within a few days after treat- 

 ment even though only a portion of the 2-acre pond was treated. Schools of 

 small fish, however, were observed through 1958, and 68 pounds of fish of 10 

 species were found alive in the fall of 1959 when the pond was drained. Of 

 these, only gar fish ( Lepisosteus ) were over 15 inches in length, but several 

 fair-sized largemouth bass and catfish were taken. Numerous fish were recorded 

 dying in Autauga County, Alabama (Allen, letter). In Decatur County, Georgia, 

 Wilson and Jenkins (unpubl.) reported that experimental applications of 0.25, 

 0.50 and 1.25 pounds technical heptachlor per acre treatments showed little af- 

 fect on fish; 5 pounds per acre was the maximum fish kill. Also, in early 

 observations in Decatur County, Webb [33] found no damage to fish. An appli- 

 cation in West Baton Rouge Parish, Louisiana, to a shallow canal resulted in 21 

 dead fish per 100 feet of bank along a 1500-foot stretch. Free-floating and 

 dead fish in the canal and on the opposite bank were not counted but were at 

 least as numerous (Glasgow, letter). Almost all were shad. In a 215-foot 

 section of the canal blocked with seines there were 22 live shad though some 



