Clutch size and body size at first reproduction in Daphnia pulicaria at different levels of food and predation
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چکیده
منابع مشابه
the role of application of dynamic assessment approach in improvement of iranian efl writing performance at different language proficiency levels
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learning a second or foreign language requires the manipulation of four main skills, namely, listening, reading, speaking, and writing which lead to effective communication. it is obvious that vocabulary is an indispensible part of any communication, so without a vocabulary, no meaningful communication can take place and meaningful communication relies heavily on vocabulary. one fundamental fac...
Testing small clutch size models with Daphnia.
Life-history theory predicts that for small clutches, variance in egg size (between individuals) should decrease in a predictable invariant manner as clutch size increases. To test this, we studied Daphnia magna at 350 different food treatments and recorded the number of eggs and the volume of each egg for their first clutch. As predicted, we found that the relationship between clutch size and ...
متن کاملan investigation of accuracy and complexity across different proficiency levels in written narrative task
abstract this quasi-experimental study was aimed at examining the impact of storyline complexity on the grammatical accuracy and complexity of advanced and intermediate efl learners. a total of 65 advanced and intermediate efl learners were selected from iran language institute (ili). an intact group including 35 intermediate participants and another intact group with 30 advanced participants ...
Selection and body size in Drosophila pseudoobscura at different temperatures.
M U C H of our present knowledge about selection comes from experiments carried out in environments as constant and optimal as possible. (For general reviews, see ROBERTSON 1956; LERNER 1958; FALCONER 1960a.) Since an individual or a population must be able to cope with a range of environments, data about the extent to which selection gains for an adaptive character under one set of environment...
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ژورنال
عنوان ژورنال: Journal of Plankton Research
سال: 1996
ISSN: 0142-7873,1464-3774
DOI: 10.1093/plankt/18.6.863