SEX RELATED DIFFERENCE OF MOVEMENT SPEED IN THE FRESHWATER SNAIL VIVIPARUS ATER

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

The distribution of cells containing FMRFamide- and 5-HT-related molecules in the embryonic development of Viviparus ater (Mollusca, Gastropoda).

The timing and spatial distribution of cells containing FMRFamide- and 5-HT-related molecules in the embryonic development of the mollusc Viviparus ater are examined using immunohistochemistry. FMRFamide-like molecules emerge in the early stage E8 (8% of embryonic development) before the 5-HT immunoreactivity, and they are not only found during nervous system ontogeny. As the parts of the diges...

متن کامل

Microstructures in shells of the freshwater gastropod Viviparus viviparus: a potential sensor for temperature change?

Mollusk shells contain a plethora of information on past climate variability. However, only a limited toolkit is currently available to reconstruct such data from the shells. The environmental data of some proxies (e.g. Sr/Ca ratios) is obscured by physiological effects, whereas other proxies, such as δ(18)O, simultaneously provide information on two or more different environmental variables. T...

متن کامل

Sex Related Difference in Handedness

In the present study an attempt is made to investigate sex related difference in handedness among adults. It was hypothesized that there will be a difference in the performance of males and females on measure of handedness. 704 males and 840 females were given a group test of handedness. The result indicates that females tended to score significantly high on performance test of handedness than ...

متن کامل

the evaluation of language related engagment and task related engagment with the purpose of investigating the effect of metatalk and task typology

abstract while task-based instruction is considered as the most effective way to learn a language in the related literature, it is oversimplified on various grounds. different variables may affect how students are engaged with not only the language but also with the task itself. the present study was conducted to investigate language and task related engagement on the basis of the task typolog...

15 صفحه اول

Temporal and spatial distributions of parasites and sex in a freshwater snail

The Red Queen hypothesis predicts that sexual reproduction should be favoured in geographic locations where the risk of infection is high. We surveyed 20 lakes on the South Island of New Zealand to determine whether an association exists between the presence of individuals sterilized by trematode larvae and the presence of males in a common freshwater snail (Potamopyrgus antipodarum). The snail...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Journal of Molluscan Studies

سال: 1986

ISSN: 0260-1230,1464-3766

DOI: 10.1093/mollus/52.2.91