Observations on Some Factors Associated With the Breeding of Anopheles Mosquitoes in Northeastern Louisiana

Bradley, G. H.

doi:10.1097/00007611-193205000-00020

Cited by 4 publications

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“…3). This resembles the finding of Bradley (1932) in one of the few studies of mosquito (Anopheles quadrimaculatus) numbers as related to plankton abundance, where excessively high plankton densities in low mosquito production waters are attributed to other environmental factors than larval feeding. The two highest plankton lakes in Fig.…”

supporting

confidence: 81%

Food of Chironomid Larvae in Polk County Lakes

Provost¹,

Branch²

1959

The Florida Entomologist

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JSTOR is a not-for-profit service that helps scholars, researchers, and students discover, use, and build upon a wide range of content in a trusted digital archive. We use information technology and tools to increase productivity and facilitate new forms of scholarship. For more information about JSTOR, please contact support@jstor.org.. Florida Entomological Society is collaborating with JSTOR to digitize, preserve and extend access to The Florida Entomologist.The lakes of the Winter Haven area of Polk County, Florida, produce Chironomidae (= Tendipedidae), locally called "blind mosquitoes", in large numbers. Glyptotendipes paripes predominates, and Tendipes decorus is the most common of the lesser species. In the summer of 1956 a preliminary survey was made to determine whether nutrient effluents were the cause of eruptions of chironomid populations. Limnological and entomological assessments were made concurrently on thirteen lakes. Larval stomachs of G. pcaripes and T. decorus were studied for comparisons of food with the lake planktons. Larvae collected in January 1957 were then used for seasonal comparisons, although the plankton was not sampled at that time for lack of personnel.The summer field work was done by two men: E. H. McConkey of the State Board of Health's Bureau of Entomology did the limnological work and Harry J. Hutton of the Polk County Arthropod Control Program did the larval sampling and lake bottom survey. Assistance in the ion measurements was rendered by the Bureau of Laboratories of the State Board of Health while the Bureau of Sanitary Engineering advised on B.O.D. and 02 measurements. Plankton determinations and counts, in water samples and in stomachs, were made by the junior author. The winter larval collections were made, again, by Harry J. Hutton. I. THE LAKESSince it was desirable to learn the role of pollution in chironomid production, the study lakes were selected as follows: Undisturbed, Lakes Thomas (Auburndale) and "X" (Lake Wales); "Industrial", with canning plants only significant nutrient source, Lakes Tracy (Haines City) and Conine (Winter Haven); "Citrus", grove fertilizer runoff only significant nutrient source, Lakes Tennessee (Auburndale) and "Y" (Lake Wales); "Septic-tank", with non-sewered homes only possible nutrient source, Lakes Deer (Winter Haven) and Lena (Auburndale); "Sewage-plant", receiving effluents from sewage-treatment plants, Lakes Gibson (Lakeland) and Effie (Lake Wales); "Chain-o-lakes", interconnected lakes with sewagetreatment plant, canning plants, septic tanks, and fertilizer run-off all as possible nutrient sources, Lakes Cannon, May, and Lulu (Winter Haven). Morphometric, limnological, and chironomid surveys were made on these 13 lakes in the summer of 1956.The lakes varied from 3 to 635 acres in size and 4 to 22 feet in maximum depth. They were mostly quite turbid, with Secchi disc visibilities running from 6 inches to 4 feet in all but the two undisturbed lakes where they were 5 to 12 feet. Water temperatures (summer) ranged from 26.50 C to 3...

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confidence: 81%

Food of Chironomid Larvae in Polk County Lakes

Provost¹,

Branch²

1959

The Florida Entomologist

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“…Apart from the mechanical effects of the duckweed, Angerilli and Bryan (1980) stated that the duckweed influenced the survival of mosquitoes concerning the effect of the chemical characteristics of the water on mosquito colonization. Bradley (1932) suggested that floating plants do not provide effective protection for anopheline larvae because their leaves lie on top of the water surface and therefore do not hide the larvae from their enemies.…”

Section: Discussionmentioning

confidence: 99%

Influence of the aquatic plant, Lemna minor on the development and survival of Culex pipiens mosquito immature.

Baz

2017

Egyptian Academic Journal of Biological Sciences. A, Entomology

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“…The Georgia rec¬ ords show breeding waters there to be gen¬ erally alkaline, but the bulk of breeding waters of A. crucians was slightly acid. In northeastern Louisiana, where A. quadrimaculatus was the predominant anopheline, Bradley (1932) found the breeding waters to range from pH 6.8 to 9.2. Watson and Spain (1937) state that spring-fed lime sink ponds having a mean pH of 7.2 and a range of 6.5 to 7.8 more nearly approximate the ideal breeding place of A. quadrimaculatus than do any other waters in northern Alabama.…”

Section: Larval Ecologymentioning

confidence: 98%

“…Mating. Anopheline adults are usually produced in approximately equal numbers of males and females, although a pre¬ ponderance of females sometimes occurs (Bradley 1926;Boyd 1930a).…”

Section: Adult Behaviormentioning

confidence: 99%

A Symposium on Human Malaria with Special Reference to North America and the Caribbean Region

1942

JAMA

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Facilities for blood film diagnosis A few public health labs. Central Lab.: 5 am¬ bulatory clinics since 1937 Government Lab. (Belize) Medical aid in only 16.2% of all deaths 1938 Fruit Company Hos¬ pitals in port cities have good labs. Public Health Labs. (15) & ambulatory clinics Public Health Labs. in San Jose; special surveys Methods of routine diagnosis 14 MALARIA Relative frequency species of malaria plasmodia6 P. falciparum P. vivax P. malariae P. vivax and P. falciparum about equal P. malariae (imported) P. falciparum 90.3% P. vivax 9.2% P. malariae 0.3% P. falciparum 65% P. vivax 32% P. malariae 3% No data; all three species present P. falciparum 55% P. vivax 43 %

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Observations on Some Factors Associated With the Breeding of Anopheles Mosquitoes in Northeastern Louisiana

Cited by 4 publications

References 0 publications

Food of Chironomid Larvae in Polk County Lakes

Food of Chironomid Larvae in Polk County Lakes

Influence of the aquatic plant, Lemna minor on the development and survival of Culex pipiens mosquito immature.

A Symposium on Human Malaria with Special Reference to North America and the Caribbean Region

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