منابع مشابه
Community Structure : Larval Trematodes in Snail Hosts
In species assemblages of larval trematodes in individual snail hosts, fewer multispecies infections are observed than might be expected by chance. Both interspecific competition and the isolating effect of heterogeneity inrecruitment may explain this pattern of community structure. Here, we analyzed the expected and observed frequency of double infections, using data culled from 62 studies. Ou...
متن کاملA differential staining for living and dead larval trematodes.
In the course of various experiments on larval trematodes, we often confront the necessity for determining their death. In such cases the movement of body, cilia or flame-cells is used commonly as an indicator to determine their death by many parasitologists. However, such movements appear to be not always coincident with the time of the death, consequently results of the diagnosis by such a te...
متن کاملEffects of initial (larval) size and host body temperature on growth in trematodes
For ectotherms, temperature is an important correlate of variation in body size within species. Variation in body size among related species could also be attributable in part to temperature if the different species grow under different thermal regimes. The roles of both initial (larval) size and host body temperature on final (adult) size of parasitic trematodes were investigated in a comparat...
متن کاملDetermination of the infection of Lymnaea-gedrosina to trematodes Larval in the water region of Khuzestan
Background & Objective: The province of Khuzestan with its wide geographical area and its tropical climate is susceptible for the maintenance of snails. One of the prevalent intermediate hosts for trematode in this area is the gasteropode snail, Lymnaea gedrosina. This study is the first research, undertaken to determine the infection rate, biological characteristics and Longevity Lymnaea gedro...
متن کاملLarval trematodes in freshwater gastropods from Mato Grosso, Brazil: diversity and host-parasites relationships
A survey for freshwater gastropods carrying trematodes parasites was conducted in Manso Dam and the surrounding areas frequented by tourist, focusing particularly on the Pantanal region. Infected snails were recovered from twelve of the eighteen investigated municipalities and forty-one cercaria-snail pairings were recorded. Among these pairings were several first records of snails serving as i...
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ژورنال
عنوان ژورنال: Annals and Magazine of Natural History
سال: 1909
ISSN: 0374-5481
DOI: 10.1080/00222930908692568