DEVELOPMENTAL RATE AND COMPETITIVE ABILITY IN TRIBOLIUM. II. CHANGES IN COMPETITIVE ABILITY FOLLOWING FURTHER SELECTION FOR DEVELOPMENTAL RATE

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

Genetic Homeostasis and Developmental Rate in Tribolium.

ENETIC analysis of a variety of traits in populations of several species has revealed a similar pattern for many traits which are important components of fitness. In general such characters have intermediate optima, and prolonged artificial selection for extreme expression leads to a reduction in fitness. LERNER (1954, 1958) has postulated that one possible mechanism for natural selection in fa...

متن کامل

Natural selection. II. Developmental variability and evolutionary rate.

In classical evolutionary theory, genetic variation provides the source of heritable phenotypic variation on which natural selection acts. Against this classical view, several theories have emphasized that developmental variability and learning enhance nonheritable phenotypic variation, which in turn can accelerate evolutionary response. In this paper, I show how developmental variability alter...

متن کامل

Reduced competitive ability in an invasive plant

Oliver Bossdorf*, Daniel Prati, Harald Auge and Bernhard Schmid Department of Community Ecology, UFZ Centre for Environmental Research, D-06120 Halle, Germany Institute of Environmental Sciences, University of Zurich, Winterthurerstr. 190, CH-8057 Zurich, Switzerland *Correspondence: E-mail: [email protected] Abstract One explanation for successful plant invaders is that they evolved to be...

متن کامل

Productivity and competitive ability of enterprise

The changing fortunes of a particular country many times depends on the people ́s ability to accept the world-wide appeals. If they are able to face the competition, especialy if they are able to take their chance presented in the modern world. The Global economy brings not only threats but also opportunities. If each country had a positive approach to the global appeals, it would perform an eco...

متن کامل

diagnostic and developmental potentials of dynamic assessment for writing skill

این پایان نامه بدنبال بررسی کاربرد ارزیابی مستمر در یک محیط یادگیری زبان دوم از طریق طرح چهار سوال تحقیق زیر بود: (1) درک توانایی های فراگیران زمانیکه که از طریق برآورد عملکرد مستقل آنها امکان پذیر نباشد اما در طول جلسات ارزیابی مستمر مشخص شوند; (2) امکان تقویت توانایی های فراگیران از طریق ارزیابی مستمر; (3) سودمندی ارزیابی مستمر در هدایت آموزش فردی به سمتی که به منطقه ی تقریبی رشد افراد حساس ا...

15 صفحه اول

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: Evolution

سال: 1967

ISSN: 0014-3820

DOI: 10.1111/j.1558-5646.1967.tb00157.x