Free and Discounted Ebooks
Join 130,000 readers! Get our ebook deals straight to your inbox.

Territory in Bird Life

Cover image for

Download


Author: H. Eliot Howard
Published: 1920
Language: English
Wordcount: 78,339 / 239 pg
Flesch-Kincaid Reading Ease: 36.9
LoC Category: QH
Downloads: 364
Added to site: 2010.04.15
mnybks.net#: 27357
Origin: gutenberg.org
Genres: Science, Nature
Excerpt

orms part of the hereditary equipment of the bird, how is the process of reproduction furthered? The mere fact of remaining in or about a particular spot cannot render the attainment of reproduction any less arduous, and may indeed add to the difficulties, for any number of individuals might congregate together and mutually affect one another's interests. A second disposition comes, however, into functional activity at much the same stage of sexual development, and manifests itself in the male's intolerance of other individuals. And the two combined open up an avenue through which the individual can approach the goal of reproduction. In terms of the theory I shall refer to this second disposition as the one which is concerned with the defence of the territory.

Broadly speaking, these two dispositions may be regarded as the basis upon which the breeding territory is founded. Yet inasmuch as the survival value of the dispositions themselves must have depended upon the success of the process as a whole, i

SUBSCRIBE TO MANYBOOKS 

FREE EBOOKS 

Join 120,000+ fellow readers! Get Free eBooks and book bargains from ManyBooks in your inbox. 

We respect your email privacy

(advanced)
login | register

User ID

Password

reset password

Author of the Day

Debra Salonen
Former award-winning newspaper journalist and bestselling author, Debra Salonen is back with the fun and very romantic Black Hills Rendezvous series. Today she answers our questions on how she chooses names for her characters, what made her pick a sperm donor as lead character for Black Hills Baby and whether she thinks love conquers all.
Read full interview...