Oviposition Responses of Aedes aegypti and Ae. atropalpus (Diptera: Culicidae) Females to Waters from Conspecific and Heterospecific Normal Larvae and from Larvae Infected with Plagiorchis elegans (Trematoda: Plagiorchiidae)

Zahiri, Nayer; Rau, Manfred E.; Lewis, D. J.

doi:10.1093/jmedent/34.5.565

Cited by 34 publications

(24 citation statements)

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“…albopictus development times [5,31]. In the present study, larval development time decreased with increasing diet level, and such findings were not significantly influenced by the presence of conspecific individuals at medium diet concentrations.…”

Section: Discussionsupporting

confidence: 52%

“…Although mortality rates differed between treatments, prolonged development time was exclusively observed in high-density treatments (80 conspecific larvae). Such observed density-dependent effect could have resulted from crowding effects (i.e., the direct impact of larger numbers of organisms on access to food and, ultimately, feeding success; [4,5,46]), increased food partitioning (lower food per capita; [46]), or toxins induced by such sources of stress [47]. By separating conspecific from experimental larvae and keeping the experimental larvae at low densities (10 larvae/150 ml of water), this study minimized any possible occurrence of crowding effects focusing on the effect of food partitioning on larval productivity.…”

Section: Discussionmentioning

confidence: 99%

“…Laboratory and field studies have shown that oviposition site selection by most mosquito species is not random [2-5]. Yet, egg-laying behavior may be complex and highly heterogeneous.…”

Section: Introductionmentioning

confidence: 99%

“…Yet, egg-laying behavior may be complex and highly heterogeneous. This is perhaps because selecting particular habitats is based on several aspects including physical [6] and chemical [7-10] cues, as well as on interspecific and intraspecific density within the habitat [5,11]. Although it is hypothesized that oviposition site selection maximizes offspring fitness by releasing immature stages from predation or competition with other mosquito larvae or organisms over food resources [5,12,13], few studies have empirically estimated the association between mosquito habitat quality, resource competition, and reproductive fitness in mosquitoes [11,14-17].…”

Section: Introductionmentioning

confidence: 99%

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Diet and density dependent competition affect larval performance and oviposition site selection in the mosquito species Aedes albopictus (Diptera: Culicidae)

et al. 2012

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BackgroundOviposition-site choice is an essential component of the life history of all mosquito species. According to the oviposition-preference offspring-performance (P-P) hypothesis, if optimizing offspring performance and fitness ensures high overall reproductive fitness for a given species, the female should accurately assess details of the heterogeneous environment and lay her eggs preferentially in sites with conditions more suitable to offspring.MethodsWe empirically tested the P-P hypothesis using the mosquito species Aedes albopictus by artificially manipulating two habitat conditions: diet (measured as mg of food added to a container) and conspecific density (CD; number of pre-existing larvae of the same species). Immature development (larval mortality, development time to pupation and time to emergence) and fitness (measured as wing length) were monitored from first instar through adult emergence using a factorial experimental design over two ascending gradients of diet (2.0, 3.6, 7.2 and 20 mg food/300 ml water) and CD (0, 20, 40 and 80 larvae/300 ml water). Treatments that exerted the most contrasting values of larval performance were recreated in a second experiment consisting of single-female oviposition site selection assay.ResultsDevelopment time decreased as food concentration increased, except from 7.2 mg to 20.0 mg (Two-Way CR ANOVA Post-Hoc test, P > 0.1). Development time decreased also as conspecific density increased from zero to 80 larvae (Two-Way CR ANOVA Post-Hoc test, P < 0.5). Combined, these results support the role of density-dependent competition for resources as a limiting factor for mosquito larval performance. Oviposition assays indicated that female mosquitoes select for larval habitats with conspecifics and that larval density was more important than diet in driving selection for oviposition sites.ConclusionsThis study supports predictions of the P-P hypothesis and provides a mechanistic understanding of the underlying factors driving mosquito oviposition site selection.

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Section: Discussionsupporting

confidence: 52%

Section: Discussionmentioning

confidence: 99%

“…Laboratory and field studies have shown that oviposition site selection by most mosquito species is not random [2-5]. Yet, egg-laying behavior may be complex and highly heterogeneous.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Diet and density dependent competition affect larval performance and oviposition site selection in the mosquito species Aedes albopictus (Diptera: Culicidae)

et al. 2012

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“…atropalpus and Ae. japonicus in rock pool communities have been proposed here, however it is important to note that variations in temperature (Lounibos et al 2002), habitat (Bertness, 1984, Livdahl and Willey 1991), larval density, season (Teng and Apperson 2000), and oviposition attraction and repellency (Maire and Langis 1985, Zahiri et al 1997) may also influence larval competition differently among mosquito species and warrant further research with respect to interactions between these two species. Ultimately, the outcome of interspecific competition between these two species depends on the frequency of their co-occurrence in both rock pools and other containers in nature.…”

Section: Discussionmentioning

confidence: 69%

Larval competition between Aedes japonicus and Aedes atropalpus (Diptera: Culicidae) in simulated rock pools

Armistead¹,

Nishimura²,

Escher³

et al. 2008

Journal of Vector Ecology

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The success of an invasive species becoming established in a new region often depends on its interactions with ecologically similar resident species. The propensity of the newly-established mosquito Aedes japonicus to inhabit rock pools throughout the eastern United States provides a natural setting for interspecific larval competition with the native Aedes atropalpus. A laboratory experiment conducted in simulated rock pools to evaluate larval interactions between and within these two species suggested that the performance of both species was more significantly impacted by intraspecific conditions than interspecific conditions of the same mosquito density. Aedes atropalpus was apparently more sensitive to larval densities than Ae. japonicus because it reproduces autogenously, requiring a lengthened period of larval development to obtain nutrient reserves for egg development, which may ultimately put Ae. atropalpus at a disadvantage under larval conditions of competition and limited resources. Excessively stressful experimental conditions, as evidenced by reduced body size, and thus fecundity and estimated finite rate of increase, may have obscured the effects of larval competition between these species. The impact of larval competition between these species in rock pool communities warrants further investigation under more ecologically realistic experimental conditions.

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Chemoecology of Insect Eggs and Egg Deposition

Hilker¹,

Meiners²

2003

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This is the first book to focus on insect eggs since the publication , in 1981, of Hinton's comprehensive but somewhat amorphous Biology of Insect Eggs, and the only book that has attempted to pull together aspects of the chemoecology of the eggs and oviposition. The first six chapters comprise the section on chemoecology of eggs. Here, I think, the editors have had to struggle to bring together appropriate work, and some of the chapters seem tangential to the topic. The most relevant are those of Gillott, and Eisner and colleagues. Gillott describes the female accessory glands and brings together information on the glandular origins of different chemical products associated with oviposition and the egg. The chapter by Eisner and colleagues brings together the various studies, mostly their own, on the chemicals passed in spermatophores to the female and which subsequently are found in the eggs. This is the first time such a review has been attempted and it is informative, readable and well illustrated. The chapter by Blum and Hilker on Chemical Protection of Eggs is also central to the topic, but suffers from the fact that much of it simply describes the compounds present in adults that are possibly also present in eggs. However, two tables list the compounds that are known to occur in or on eggs and the diversity of formulae is well illustrated. Perhaps it is still too soon to write a really satisfactory account of this topic. The first chapter, by Trougakos and Margaritis, gives a detailed account of egg morphology and egg morphogenesis in Dros-ophila, about which most is known, with reference to the eggs of other species where possible. The last two chapters of this section deal with Brood Protection in Social Insects, by Ayasse and Paxton, and the Role of Microorganisms for Eggs and Progeny, by Kellner. Both are interesting chapters although the information on eggs is almost incidental. The last seven chapters are devoted to the chemoecology of egg deposition. Whether egg deposition is different from oviposition never became clear to me, but that is trivial. Here there is no shortage of material. The first chapter, by Sta¨dlerSta¨dler, is a good survey of the role of plant chemical cues used by insects for locating and identifying host plants. It also includes a brief account of the sensory physiology involved in the perception of chemical cues. This is followed by a most interesting chapter by Hilker and her colleagues entitled The Plant's Response towards Insect Egg Deposition, including the induction of galls. Then comes a review by Anderson of oviposition marking phero-mones in herbivorous and carnivorous insects. Carnivorous, here, refers mainly to Hymenopteran parasitoids, but includes predaceous larvae of coccinellids and chrysopids. Subsequent chapters by McCall, and by Steidle and van Loon consider the chemoecology of oviposition site selection by insects of medical and veterinary importance and by parasitoids and predators, respectively. All these chapters are, rightly, largely descriptive and lack...

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Oviposition Responses of Aedes aegypti and Ae. atropalpus (Diptera: Culicidae) Females to Waters from Conspecific and Heterospecific Normal Larvae and from Larvae Infected with Plagiorchis elegans (Trematoda: Plagiorchiidae)

Cited by 34 publications

References 0 publications

Diet and density dependent competition affect larval performance and oviposition site selection in the mosquito species Aedes albopictus (Diptera: Culicidae)

Diet and density dependent competition affect larval performance and oviposition site selection in the mosquito species Aedes albopictus (Diptera: Culicidae)

Larval competition between Aedes japonicus and Aedes atropalpus (Diptera: Culicidae) in simulated rock pools

Chemoecology of Insect Eggs and Egg Deposition

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