ISBN: 9780198573579 - avian breeding cycles (10 resultados)

hardcover. Condición: Near Fine. Estado de la sobrecubierta: Very Good-. 594 pages; 6 1/4 x 9 1/2" A couple of numbers inked on front pastedown; 3 x 4" previous owner's bookplate on front pastedown; jacket edges are lightly worn; slight surface tearing to rear jacket top edge; jacket in mylar sleeve. Shipping will be extra for this heavier book, please inquire.…

Condición: Good. Former library copy. Pages intact with minimal writing/highlighting. The binding may be loose and creased. Dust jackets/supplements are not included. Includes library markings. Stock photo provided. Product includes identifying sticker. Better World Books: Buy Books. Do Good.

Condición: Near Fine. Owner's stamp to ffep, otherwise near fine in a very good dustjacket. 8vo. xiii, 594 pp. Hardcover, blue cloth, gilt spine title.

Condición: Good. Good exlibrary copy, intact jacket under mylar, light wear but has exlibrary marks signs. Fast Shipping - Safe and Secure Bubble Mailer.

Condición: Acceptable.

Condición: Good. Your purchase helps support Sri Lankan Children's Charity 'The Rainbow Centre'. Ex-library, so some stamps and wear, but in good overall condition. Our donations to The Rainbow Centre have helped provide an education and a safe haven to hundreds of children who live in appalling conditions.…

Hardcover. Condición: Very Good. Immediate dispatch from Somerset. Nice book in great condition. Pages in excellent condition. Hardcover. English. See images for condition. About the book >.>.> The key to successful ecological adaptation in birds is the optimal partitioning of a com-plexity of conflicting physiological processes; the annual moult, diurnal and seasonal fat deposition, migration, and reproduction all demand a surplus of energy over the needs of basic maintenance. Birds have evolved many strategies to cope with seasonal vari-ations in resource availability in a way that maximizes their reproductive rate. The daily and seasonal cycle of day and night is the only reliable environmental cue that the bird can use to time its activities, and an appreciation of photoperiodism is fundamental to an understanding of how birds live. Virtually all metabolic processes exhibit endogenous circadian rhythms which are entrained by the 24-hour day-night cycle. From such rhythms are compounded endogen-ous circannual rhythms of physiological func-tion which in turn are entrained by seasonal changes in the light-dark cycle-weakly at the equator and strongly at high latitudes. Rhythms in gamete production are s.…

Hard Cover. Condición: Very Good. Estado de la sobrecubierta: Very Good. First Edition. Dust jacket price clipped. Original cloth with bright gilt titling on spine. Previous owner's details on ffep. xiii, 594 pages. B/w photographs, tables and line drawings. Clean and tight. From the dj flap, "The key to successful ecological adaptation in birds is the optimal partitioning of a complexity of conflicting physiological processes; the annual moult, diurnal and seasonal fat deposition, migration, and reproduction all demand a surplus of energy over the needs of basic maintenance. Birds have evolved many strategies to cope with seasonal variations in resource availability in a way that maximizes their reproductive rate. The daily and seasonal cycle of day and night is the only reliable environmental cue that the bird can use to time its activities, and an appreciation of photoperiodism is fundamental to an understanding of how birds live. Virtually all metabolic processes exhibit endogenous circadian rhythms which are entrained by the 24-hour day-night cycle. From such rhythms are compounded endogenous circannual rhythms of physiological function which in turn are entrained by seasonal changes in the light-dark cycle-weakly at the equator and strongly at high latitudes. Rhythms in gamete production are synchronized between the sexes by complex behavioural mechanisms and the pair are synchronized with their environment by photoperiodic responses appropriate to the species. This theme provides the background for detailed discussions of the hypophysial and other endocrine systems, the role of hormones in reproductive behaviour, energy budgets in relation to reproduction, egg and clutch size, breeding seasons, circadian and ultradian rhythms and their control, sexual selection, and the pair bond. Factors which influence avian survival rates are distinguished from the processes of population dynamics and some constraints on evolutionary change are considered." Size: Sm 4to.…

Leinen. Condición: Gut. 8°, XIII, 594 Seiten mit zahlr. Abb., Original-Leinen mit illustr. Original-Umschlag - Umschlag mit Gebrauchsspuren sonst guter Zustand - 1977. b41092 ISBN: 019857357X Sprache: Englisch Gewicht in Gramm: 1150.

Condición: Very Good. A tiny tear, a lot of light scratches and slight shelf wear on jacket. Content is fine.