Theoretical estimates of consumable food and probability of acquiring food in larvae of Chrysomya putoria (Diptera: Calliphoridae)

Memórias do Instituto Oswaldo Cruz

Wac Godoy²  Cj Von Zuben¹  Sf Dos Reis¹  Fj Von Zuben¹ 

[1] ,Universidade Estadual Paulista IB Departamento de ParasitologiaBotucatu SP ,Brasil

关键词: Chrysomya putoria;    density-independence;    exploitative competition;    consumable food;    population dynamics;   

DOI  :  10.1590/S0074-02761996000200026

来源: SciELO

【 摘 要 】

An indirect estimate of consumable food and probability of acquiring food in a blowfly species, Chrysomya putoria, is presented. This alternative procedure combines three distinct models to estimate consumable food in the context of the exploitative competition experienced by immature individuals in blowfly populations. The relevant parameters are derived from data for pupal weight and survival and estimates of density-independent larval mortality in twenty different larval densities. As part of this procedure, the probability of acquiring food per unit of time and the time taken to exhaust the food supply are also calculated. The procedure employed here may be valuable for estimations in insects whose immature stages develop inside the food substrate, where it is difficult to partial out confounding effects such as separation of faeces. This procedure also has the advantage of taking into account the population dynamics of immatures living under crowded conditions, which are particularly characteristic of blowflies and other insects as well.

【 授权许可】

CC BY   
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