Publication Date:
1991-07-12
Description:
Effects of infections by the ciliate Lambornella clarki on larval populations of its mosquito host Aedes sierrensis were examined in laboratory and field studies. When host populations developed with sufficient food, mortality from parasites was additive and reduced the number of emerging mosquitoes. For food-limited populations, mortality was compensatory or depensatory; emerging adults were as or more abundant with higher average fitness than those from uninfected control populations. When nutrients were scarce, parasitic infections relaxed larval competition and increased per capita food by reducing host abundance. Food limitation altered larval feeding behavior, reducing horizontal transmission and subsequent mortality from parasitism.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Washburn, J O -- Mercer, D R -- Anderson, J R -- AI20245/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1991 Jul 12;253(5016):185-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Entomology, University of California, Berkeley 94720.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1906637" target="_blank"〉PubMed〈/a〉
Keywords:
Aedes/*parasitology/physiology
;
Animals
;
Ciliophora/*physiology
;
Ecology
;
Population Dynamics
;
Trees
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
,
Chemistry and Pharmacology
,
Computer Science
,
Medicine
,
Natural Sciences in General
,
Physics
