Phylogenetic analysis of 18S rRNA sequences from the families Trypanosomatidae and Bodonidae (Eugelenozoa: Kinetoplastida) was conducted using a variety of methods. Unlike previous analyses using unrooted trees and/or smaller numbers of sequences, the analysis did not support monophyly of the genus Trypanosoma, which includes the major human parasites T. cruzi (cause of Chagas' disease) and T. ...

The study presents a Trypanosoma infection in Mediterranean mouse (Mus macedonicus Petrov & Ružić, 1983) from Plovdiv region (Bulgaria). The average established prevalence of the parasite in Mus macedonicus was 23.5 %, whereas the infection rate was lower in female (11.1%) compared to male (37.5%) individuals. All observed parasite forms are trypomastigotes, possessing the morphological charact...

Sperm competition in yellow dung flies (Scathophaga stercoraria) has been extensively investigated since Parker's (1970a) seminal work (e. These flies serve as a model system for understanding the mechanisms and outcomes of sperm competition in internal fertilizers. Invariably however, these investigations have been laboratory based, and typically involved competition between only two males. Ho...