Larval morphology and temperature-dependent development models of Fannia pusio (Wiedemann): A forensic indicator with expanding distribution
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Larval morphology and temperature-dependent development models of Fannia pusio (Wiedemann) : A forensic indicator with expanding distribution. / Grzywacz, Andrzej; Walczak, Kinga; Niewiadomska, Marta; Pape, Thomas.
In: Acta Tropica, Vol. 233, 106546, 2022.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Larval morphology and temperature-dependent development models of Fannia pusio (Wiedemann)
T2 - A forensic indicator with expanding distribution
AU - Grzywacz, Andrzej
AU - Walczak, Kinga
AU - Niewiadomska, Marta
AU - Pape, Thomas
N1 - Publisher Copyright: © 2022 The Author(s)
PY - 2022
Y1 - 2022
N2 - Fannia pusio (Wiedemann) is originally from tropical and subtropical regions of the Americas, where it has repeatedly been collected from both animal carrion and human cadavers. This species is expanding its distributional range, and it has been introduced to Africa, Asia, Australia, Oceania, and Europe. Newly introduced species may be confused with native species of local arthropod necrophagous assemblages, which from a forensic entomology perspective may impact the accuracy of post-mortem interval (PMI) estimations based on insect evidence. In this work we aim to raise awareness among forensic entomologists of the potential benefits and risks associated with the expanding range of F. pusio. Morphology of all larval instars is documented with a combination of light, confocal laser scanning and scanning electron microscopy. Characters allowing identification from other forensically important Fanniidae are listed. Thermal requirements for the development of immature stages of F. pusio were examined under nine ambient temperatures. Models describing changes in larval body length over time were produced for eight different temperatures. The thermal summation constant (k) and developmental zero (Tmin) were calculated for six developmental events: hatching, first ecdysis, second ecdysis, wandering, pupariation, and eclosion.
AB - Fannia pusio (Wiedemann) is originally from tropical and subtropical regions of the Americas, where it has repeatedly been collected from both animal carrion and human cadavers. This species is expanding its distributional range, and it has been introduced to Africa, Asia, Australia, Oceania, and Europe. Newly introduced species may be confused with native species of local arthropod necrophagous assemblages, which from a forensic entomology perspective may impact the accuracy of post-mortem interval (PMI) estimations based on insect evidence. In this work we aim to raise awareness among forensic entomologists of the potential benefits and risks associated with the expanding range of F. pusio. Morphology of all larval instars is documented with a combination of light, confocal laser scanning and scanning electron microscopy. Characters allowing identification from other forensically important Fanniidae are listed. Thermal requirements for the development of immature stages of F. pusio were examined under nine ambient temperatures. Models describing changes in larval body length over time were produced for eight different temperatures. The thermal summation constant (k) and developmental zero (Tmin) were calculated for six developmental events: hatching, first ecdysis, second ecdysis, wandering, pupariation, and eclosion.
KW - Alien species
KW - CLSM
KW - Forensic entomology
KW - Insect development
KW - Morphology
KW - Post-mortem interval
KW - Postmortem interval
KW - SEM
U2 - 10.1016/j.actatropica.2022.106546
DO - 10.1016/j.actatropica.2022.106546
M3 - Journal article
C2 - 35661737
AN - SCOPUS:85132241696
VL - 233
JO - Acta Tropica
JF - Acta Tropica
SN - 0001-706X
M1 - 106546
ER -
ID: 315980467