THE ECOTYPE CONCEPT

摘要: In two papers, published in I922, Turesson (I922a, b) introduced the ecotype concept and its importance study of constitution origin species was almost immediately recognized. Ecologists taxonomists alike appreciate value combined field observations controlled cultural experiments. There some criticism, part justified, that studies populations conditions their environment were insufficiently extensive intensive based too much on selected individuals not whole or sufficiently large random samples such. Nevertheless, Turesson's researches have opened up new lines research full recognition his great contributions to problems must be gratefully accorded by anyone familiar with facts. is no intention, need, give details early investigations ecotypes. A very useful summary given Barton-Wright (I932). More recently, Gregor (I944) has a most valuable recent trends thought this subject. The present paper concerned mainly matters: significance changes definition terms first used relation between genecology taxonomy. (1944) touched both these which also referred writer an earlier (Turrill, I938) more recently review I942). An investigator unavoidably impressed own experiences, examples he himself worked, difficulties meets, than those others, concepts, terms, definitions, schemes classification can only tested pragmatically. Genecologists often criticized taxonomists, sometimes without reason, but from misconception taxonomist's functions. Taxonomists ignored criticisms indeed experimental work genecologists, though there increasing improvement respect. again expresses appreciation methods results obtained genecological confident any makes will accepted constructive spirit they are offered.