The Complete Work of Charles Darwin Online

RECORD: Darwin, C. R. 1840.06. A beast of prey introduced into country would probably not exterminate a species. CUL-DAR47.1d. Edited by John van Wyhe (Darwin Online, http://darwin-online.org.uk/)

REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 7.2022. RN1

NOTE: See record in the Darwin Online manuscript catalogue, enter its Identifier here. Reproduced with permission of the Syndics of Cambridge University Library and William Huxley Darwin. The volume CUL-DAR47 contains notes for Natural selection chap. 7 'Laws of Variation'.

[1d]

Maer June / 40 Ch. 6

A beast of prey introduced into country would probably not exterminate a species well adapted to that country — bears & rein-deer in Iceland.— but render them much fewer & hence admirably circumstanced to produce new species.— for instance more alpine &c &c—

Then again would make the beast of prey vary, if it could exist without this particular kind of prey, otherwise the beast of prey would become exterminated.

/over

[1dv]

Larch plantations at Maer, best case of one species altering the whole adaptation of other species.

Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)