author(s)
Maduamaka Cyriacus Abajue, Luke Chinaru Nwosu and Kayode David Ileke

abstract
The analysis of climate change effects on forensic insects is grossly neglected in the tropics and requires attention. It was revealed that insects associated with cadavers at different climatic regions experience accelerated or delayed developmental activities. As a consequence, global warming pushes species that are resident in southern hemisphere to the northern hemisphere and predispose some susceptible indigenous species to extinction. The southern species are likely to benefit from this phenomenon by increasing their range, facilitating their activities and completing their life cycle earlier than before. Global warming is capable of altering the accuracy of postmortem interval of a cadaver if forensic insects recovered on body are not carefully examined. Time-base disparity in estimating postmortem interval of a body is a perceived repercussion accentuated by climate change in the tropics and across the globe. It was also revealed that climate change will incontrovertibly change the biological clock and range of forensic insects. In Nigeria, the early arrival and shorter life cycle of forensic insects on exposed cadavers and faster decomposition in the southern region, could lead to questionable postmortem interval of cadavers if the sequence of events of cadaveric fauna of the regions are not harnessed and properly documented taking into account the changing climatic variables. Climatic variables of temperature, relative humidity, volume of rainfall, speed of wind and light intensity can also greatly influence population dynamics of forensic insects by modulating their survival, rates of development, fecundity and spread.