Precocious egg development in the blowfly Calliphora vicina: implications for developmental studies and post-mortem interval estimation

2012 ◽  
Vol 26 (3) ◽  
pp. 300-306 ◽  
Author(s):  
K. DAVIES ◽  
M. HARVEY

2012 ◽  
Vol 223 (1-3) ◽  
pp. 176-183 ◽  
Author(s):  
Katherine Brown ◽  
Alan Thorne ◽  
Michelle Harvey


Insects ◽  
2021 ◽  
Vol 12 (4) ◽  
pp. 280
Author(s):  
Krystal R. Hans ◽  
Sherah L. Vanlaerhoven

Estimates of the minimum post-mortem interval (mPMI) using the development rate of blow flies (Diptera: Calliphoridae) are common in modern forensic entomology casework. These estimates are based on single species developing in the absence of heterospecific interactions. Yet, in real-world situations, it is not uncommon to have 2 or more blow fly species developing on a body. Species interactions have the potential to change the acceptance of resources as suitable for oviposition, the timing of oviposition, growth rate, size and development time of immature stages, as well as impacting the survival of immature stages to reach adult. This study measured larval development and growth rate of the blow flies Lucilia sericata (Meigen, 1826), Phormia regina (Meigen, 1826) and Calliphora vicina Robineau-Desvoidy (Diptera: Calliphoridae) over five constant temperatures (15, 20, 25, 30, 35 °C), in the presence of conspecifics or two-species heterospecific assemblages. Temperature and species treatment interacted such that L. sericata larvae gained mass more rapidly when in the presence of P. regina at 20 and 30 °C, however only developed faster at first instar. At later stages, the presence of P. regina slowed development of L. sericata immatures. Development time of C. vicina immatures was not affected by the presence of P. regina, however larvae gained mass more slowly. Development time of P. regina immatures was faster in the presence of either L. sericata or C. vicina until third instar, at which point, the presence of L. sericata was neutral whereas C. vicina negatively impacted development time. Phormia regina larvae gained mass more rapidly in the presence of L. sericata at 20 °C but were negatively impacted at 25 °C by the presence of either L. sericata or C. vicina. The results of this study indicate that metrics such as development time or larval mass used for estimating mPMI with blow flies are impacted by the presence of comingled heterospecific blow fly assemblages. As the effects of heterospecific assemblages are not uniformly positive or negative between stages, temperatures or species combinations, more research into these effects is vital. Until then, caution should be used when estimating mPMI in cases with multiple blow fly species interacting on a body.



2019 ◽  
Vol 133 (4) ◽  
pp. 1133-1139 ◽  
Author(s):  
Fabio De-Giorgio ◽  
Matteo Nardini ◽  
Federica Foti ◽  
Eleonora Minelli ◽  
Massimiliano Papi ◽  
...  


2019 ◽  
Vol 59 (1) ◽  
pp. 109-115 ◽  
Author(s):  
Szymon Matuszewski ◽  
Anna Mądra-Bielewicz


2017 ◽  
Vol 132 (3) ◽  
pp. 863-873 ◽  
Author(s):  
H. T. Gelderman ◽  
L. Boer ◽  
T. Naujocks ◽  
A. C. M. IJzermans ◽  
W. L. J. M. Duijst


2021 ◽  
Vol 6 (1(Special)) ◽  
pp. 148
Author(s):  
Tania Ivorra ◽  
Anabel Martínez-Sánchez ◽  
Salvador Giner Alberola

A forensic case in which two facultative predatory species were found together on a human corpse is presented in this work. Second and third instar larvae of Synthesiomyia nudiseta (van der Wulp, 1883) (Diptera: Muscidae) and Chrysomya albiceps (Wiedemann, 1819) (Diptera: Calliphoridae) were collected from the dead body of a man on 14th November 2019, but puparia in the autopsy pictures were observed after, but not collected. The corpse was found on the terrace of the third floor of a building located in the town of Elche (SE Spain), and the pathologist confirmed the death as natural. The minimum post-mortem interval was estimated by the time to reach the length of the collected larvae or to reach the pupal developmental stage (in days and accumulated degree-days). In accordance with the influence of the predatory behaviour of each of these species on the developmental data of the other, as described in the existing literature, the effect of a hypothetical competition between both species on post-mortem interval was discussed.



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