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Bionomics of two forensically important blowfly species Chrysomya megacephala and Chrysomya putoria (Diptera: Calliphoridae) reared on four types of diet

The use of heterogeneous animal tissues for the rearing of necrophagous insect species can produce uneven biological data, which can compromise the determination of larval age and, consequently, estimates for post-mortem intervals. We investigated the development of two species, Chrysomya megacephala and Chrysomya putoria (Diptera: Calliphoridae), reared on four substrates: minced beef (control) and semi-synthetic diets with the addition of sardine, rumen or chicken eggs. No differences in total developmental times were detected among larvae reared on different diets. Length and width of larvae were partially affected by the type of food. Third instar larvae and pupae of both species were heavier on beef treatment when compared with other substrates. Overall mortality was lower when beef was used as food. Longevity of adults and sex ratio were not negatively affected by the use of diets. Egg-based diet was the least effective for both species. Given the fact that several bionomical parameters of larvae reared on diets were close to those obtained when minced beef was offered, and considering the putrid odour, frequency of contamination and lack of homogeneity of animal tissue, semi-synthetic diets can be used for rearing C. megacephala and C. putoria.     

Hybrid processes within parenting plan assessments: Rationale and an illustrative model

Parenting plan Assessments, also known as child custody evaluations, are forensic psychological investigations into the needs of children, the parenting capacities of their caregivers, and the resulting fit between the children's needs and caregiver capacities. Typically, they result in recommendations that are, in the opinion of the assessor, formulated to meet the best interests of children regarding a parenting plan, child sharing, parental responsibilities and ancillary services that are likely to support the children's optimal functioning as well as the functioning of the now reconfigured family. Such assessments are part of a pathway to untangling conflicts between the parents regarding the most appropriate parenting plan for the reconfigured family. Paradoxically, the assessment process can exacerbate the conflict, entrench parental polarization, and create lingering feelings of helplessness, frustration, and disempowerment in the parents. This article provides a rationale for the use of a hybrid process that incorporates alternative dispute resolution as an integrated part of the parenting plan assessment and provides an illustrative model of such a hybrid process.