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Differences in the shell shape of lymnaea peregra mueller gastropoda pulmonata from lotic and lentic habitats environmental or genetic variance

, : Differences in the shell shape of lymnaea peregra mueller gastropoda pulmonata from lotic and lentic habitats environmental or genetic variance. Journal of Molluscan Studies 54(2): 197-208

Lymnaea peregra from lotic habitats (running waters) had larger aperture-length/shell-length ratios than contemporaries from lentic sites (standing waters). This pattern was observed in field samples from two separate years (1985 and 1986). Laboratory culture experiments suggested that shell shape could be genetically determined in at least some popuations. We hypothesize that lotic snails possess bigger feet, and hence larger apertures than lentic individuals as an adaptation to withstand water current.

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Pepin, G.A.; Austwick, P.K.C., 1968: Skin diseases of domestic animals II.-Skin disease, mycological origin. An analysis of specimens from 2, 368 outbreaks or cases of suspected ringworm received at the Central Veterinary Laboratory during 1955-66. Fungi were isolated on 586 occasions and included: Epidermophyton floccosum from 1 dog; Microsporum canis f...

Nakamura, Y.; Uchiyama, M.; Hara, S.; Mizunuma, M.; Nakano, T.; Ishikura, H.; Hoshino, K.; Kawano, Y.; Takata, T., 2015: Therapeutic Dose Monitoring for Linezolid in a Patient with MRSA Pneumonia with Bacteremia in Diabetes Insipidus. Few studies have investigated the effect of increased creatinine clearance (CrCl) on linezolid (LZD) concentration. Herein, we report the pharmacokinetic/pharmacodynamic (PK/PD) profile of LZD used in the management of methicillin-resistant Staphy...

Nazarov, D. T., 1988: Tests with preparations. The coccinellid Epilachna chrysomelina [E. elaterii] damages melon in the south of the Turkmen SSR (USSR), the adults feeding and ovipositing on the lower surface of the leaves and the older larvae being particularly injurious. In control experime...

Trost, H.A.; Scheufler, K.M.; Steinberg, F.; Plev, D.; Lumenta, C.B., 1998: Intraoperative in-vivo measurement of hemoglobin, oxy-hemoglobin, oxygen-saturation and cytochrome aa3 with the NIOS multiscan OS 10/30TM A new method for determination of cerebral blood flow and oxygen metabolism in brain tumors and vascular malformations. Marmarou, A , Bullock, R , Avezaat, C , Baethmann, A , Becker, D , Brock, M , Hoff, J , Nagai, H , Reulen, H -J Acta Neurochirurgica Supplement; Intracranial pressure and neuromonitoring in brain injury : 396

Urbig, T.; Dornemann, D.; Sauer, K.; Senger, H., 1993: Untersuchungen zur Fluoreszenz von Scheibenanemonen. DATZ. Februar; 462: 104-106

Kuhnberger, R.; Mahn, E.G., 1976: Studies on the influence of magnesium chloride solution on Puccinellia distans and Lolium perenne. Results of greenhouse and field trials have shown that MgCl2 solutions, applied to streets in the winter, affected the development of P. distans and L. perenne growing along the verges. High concentrations of MgCl2 depressed L. perenne more than P...

Scheeser, P., 1951: Bacteria of bull semen. No qualitative difference was observed in bacterial content of semen obtained by massage and by means of an artificial vagina, but the bacterial count in semen obtained by massage was greater. The various bacteria found are named. The presence of...

Stamm, B.; Fejgl, M.; Hueber, C., 2007: Satellite cysts and biliary fistulas in hydatid liver disease. A retrospective study of 17 liver resections. In Switzerland, the preferred mode of treatment for hydatid liver disease caused by Echinococcus granulosus is surgery, giving us the opportunity for a retrospective histopathologic study of 17 consecutive liver resections. We focused on the occur...

Okamura W.H., 1982: Electro cyclization of 1 allenyl dienes novel synthesis of drimatrienes and related trans decalins. Journal Of The American Chemical Society2: 6115-6117

Sommer, F., 1954: The effects of thiomerin. Therapie der Gegenwart 93(6): 224-225