We present the results of surveys of diversity in sets of >40 X-linked and autosomal loci in samples from natural populations of Drosophila miranda and D. pseudoobscura, together with their sequence divergence from D. affinis. Mean silent site diversity in D. miranda is approximately one-quarter of that in D. pseudoobscura; mean X-linked silent diversity is about three-quarters of that for the ...

In Drosophila species of the obscura group, males exhibit sperm-heteromorphism, simultaneously producing both long sperm, capable of fertilization, and short sperm that are not. The production of multiple sperm types calls into question whether mating system correlates, such as sperm length and number trade-offs and female remating behavior, are the same as previously described in sperm-monomor...

The dynamics of mitochondrial and multilocus nuclear genotypic frequencies were monitored for 2 yr in experimental populations established with equal numbers of two poeciliid fishes (Gambusia affinis and Gambusia holbrooki) that hybridize naturally in the southeastern United States. In replicated "small-pool" populations (experiment I), 1018 sampled individuals at six time periods revealed an i...

The characteristics of Abies sibirica Ledeb.- and Pinus Du Tour dominated forests stands in outbreak spots formed during a Dendrolimus sibiricus 2014–2017 were studied at the stage population collapse (east West Siberian Plain western foothills Yenisei Range). research was based on data obtained ground surveys conducted 2016 when characteristics, silk moth density, defoliation level recorded. W...

trichomoniasis is one of the most common urinary-genital tract disease. the causal agent of trichomoniasis is flagellate protozoan called trichomonas vaginalis. metronidazole and tinidazole are the drug of choice for treatment. carcinogenic and embryo-teratogenic effects of the mentioned drugs and resistance to metronidazole has been reported. according to cytotoxic effects of medicinal herbs i...

Zimmer et al. (2001) documented two morphological and vocal forms within what was then known as Suiriri suiriri affinis, and described the short-billed form as Suiriri islerorum. However, studies of the Burmeister type material held at the Natural History Collections of the Martin-Luther-University Halle-Wittenberg, Germany, revealed the types of Suiriri s. affinis (Burmeister, 1856) to be the ...

We studied the growth and feeding response of the ciliate Euplotes affinis when exposed to algal cultures of Prymnesium parvum and Rhodomonas cf. baltica as monocultures or as mixtures. Cultures of P. parvum grown under nutrient-limited (N or P) or nutrient-sufficient conditions were tested for toxicity against E. affinis. Ciliates grew well when fed R. cf. baltica, but avoided grazing on monoc...

The investigation of the hexane extract from aerial parts of Lychnophora pinaster provided, besides others substances, the E-isomer of lychnophoric acid, a sesquiterpene derivative previously isolated from L. affinis.

Dzungarian Alatau mountain is a unique place of agrobiodiversity concentration. The apple forests consisted the red book species Malus sieversii (Ledeb.) M. Roem. in combination with Abies sibirica Ledeb. and Populus tremula L. form pronounced altitudinal-climatic band within 1200-1600 m Alatau. In this article features floristic composition communities four gorges Zhongar-Alatau National Park ...