Download or read book Energetics of black legged kittiwake Rissa tridactyla chicks written by G.W. GABRIELSEN and published by . This book was released on 1992 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Cost of Chick Rearing in the Black legged Kittiwake Rissa Tridactyla written by Gregory Henry Golet and published by . This book was released on 1995 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Kittiwake written by John Coulson and published by A&C Black. This book was released on 2011-09-19 with total page 313 pages. Available in PDF, EPUB and Kindle. Book excerpt: An authoritative overview of the biology of the Kittiwake, Rissa tridactyla. Returning to its breeding sites in the spring after a winter spent far out at sea, the Kittiwake is a familiar sight around the coasts of Britain and Europe. A pale, medium-sized gull with a 'gentle' expression and bright yellow bill, the Kittiwake has been the subject of behavioural research since the late 1950s - one of the longest running studies in the world. In this Poyser Monograph, John Coulson summarises these decades of research, revealing amazing insights into the life of these gulls, with wider implications for the behavioural ecology of all colonial birds. There are sections on life at sea, nest-site selection, breeding biology, feeding ecology, colony dynamics, moult, survivorship and conservation. This book is essential for academics working on colonial species, and is also of great interest to birders who want to learn more about these elegant cliff-dwelling birds.
Download or read book Energy cost of chick rearing in black legged kittiwakes Rissa tridactyla written by G.H. GOLET and published by . This book was released on 2000 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Adrenal Responsiveness of Black legged Kittiwake Chicks Rissa Tridactyla written by John Hansen Brewer and published by . This book was released on 2007 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The adrenal response to stress in birds is characterized by the release of the hormone corticosterone. Measurement of corticosterone of individuals is increasingly being promoted as a means to gauge the effects of environmental change or human disturbance on populations. However, species respond differently to stressors based upon their natural history, individual life history stage and the context of the stressor; thus, the collection of baseline data from individuals in their natural environment has been advocated. We measured baseline and stress-induced corticosterone levels of 12-15 day-old black-legged kittiwake (BLKI) chicks from 2002-2005 in Chiniak Bay, Alaska. The goals of the study were to explore the relationships between the adrenal responsiveness of BLKI chicks and 1) BLKI colony productivity; 2) brood size and nestling status; and 3) investigator disturbance. Adrenal responsiveness of chicks negatively correlated with colony productivity, implicating corticosterone concentration as an accurate indicator of colony productivity in poor years. Neither brood size nor nestling status affected the adrenal responsiveness of chicks in both natural broods and broods manipulated to control for maternal hormone deposition. Lastly, two levels of investigator disturbance analogous to that of a growth rate study on chicks did not significantly affect the adrenal responsiveness of chicks"--Leaf iii.
Download or read book Biology of Marine Birds written by E. A. Schreiber and published by CRC Press. This book was released on 2001-08-16 with total page 706 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biology of Marine Birds provides the only complete summary of information about marine birds ever published. It analyzes their breeding biology, ecology, taxonomy, evolution, fossil history, physiology, energetics, and conservation. The book covers four orders of marine birds in detail and includes two summary chapters that address the biology of shorebirds and wading birds and their lives in the marine environment. Summary tables give detailed information on various aspects of their life histories, breeding biology, physiology and energetics, and demography. It provides a guide to ornithologists and students for research projects.
Download or read book Wildlife Review written by and published by . This book was released on 1992 with total page 794 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Avian Energetics and Nutritional Ecology written by C. Carey and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 557 pages. Available in PDF, EPUB and Kindle. Book excerpt: A symposium held in 1973 chaired and organized by William R. Dawson was the first major attempt to summarize and synthesize the existing information in the then emerging field of avian energetics. The symposium featured papers by James R. King, William A. Calder III, Vance A. Tucker, and Robert E. Ricklefs and com mentaries by George A. Bartholomew, S. Charles Kendeigh, and Eugene P. Odum. The proceedings of the symposium, Avian Energetics (Paynter 1974), played a critical role in stimulating interest and research in the field of avian energetics. Some twenty-odd years later, we are making another attempt to summarize the information in the field of avian energetics. Some obvious differences exist be tween its predecessor and this volume. Numerous improvements in methodology, such as the use of doubly labeled water to estimate metabolism in free-living birds, now allow researchers to ask questions that could not be addressed previ ously. Second, consideration of nutrition is now inseparable from that of energet ics. This merger is necessary not only because food intake is the source of both en ergy and nutrients but also because one or more nutrients, rather than energy, can be limiting for a given species in a particular instance. Finally, the study of ener getics and nutritional ecology, particularly in birds and mammals, has grown so dramatically that a single volume can now only partially cover the range of possi ble topics and can catalogue only a sampling of all the studies on the subject.
Download or read book Avian Growth and Development written by J. Matthias Starck and published by Oxford University Press, USA. This book was released on 1998 with total page 462 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the first re-appraisal in 50 years of concepts of development made in birds. This book is a case study in evolutionary diversification of life histories. Although birds have a rather uniform body plan and physiology, they exhibit marked variation in development type, parental care, and rate of growth. Altricial birds are fully dependent on their parents for warmth and nutrition and begin posthatching life in a more or less embryonic condition. At the other extreme, such superprecocial species as the megapodes are independent of all parental care from hatching, and the neonate, able to fly, resembles an adult bird. This book thus attempts to present an integrative perspective of organism biology, ecology, and evolution.
Download or read book Black legged Kittiwake written by Pat Herron Baird and published by . This book was released on 1994 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Canadian Journal of Zoology written by and published by . This book was released on 2011-07 with total page 746 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sibling Rivalry in Black legged Kittiwakes Rissa Tridactyla written by Adriana Vallarino Moncada and published by . This book was released on 2008 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chicks of several species compete with their siblings for parental provisioning of resources and care. This competition is mainly manifested by begging or food hoarding and in only few species, as in the black-legged kittiwake (Rissa tridactyla) direct aggression between the offspring is present. It has been proposed that the degree of asymmetries between the members of a brood influence the severity and outcome of this conflict. Several inequalities between the offspring have been identified (e.g. age, size, egg quality). First- hatched chicks (A) are older, larger and hatch from a different quality egg and size than second- hatched chicks (B). These inequalities provide different advantages to the chicks within a brood but their influence in sibling rivalry have not been widely tested. In the present thesis egg components of A and B eggs were analysed, comparisons of behaviour, survival and growth of chicks in two different years were made and egg size and quality were experimentally manipulated in order to test their importance in the sibling rivarly outcome of the black-legged kittiwake. In chapter II egg composition analyses of A- and B- eggs within a clutch were made. It was found that mothers allocated more carotenoids and less testosterone to A- eggs, while corticosterone, lipid and protein content did not differ, although A- eggs were 4% larger than B- eggs. In chapter III comparisons of behaviour, growth and survival between two environmentally different years were made. 2004 was a year with poor quality food whilst 2005 was a year with good food quality. The majority of second-hatched chicks in 2004 died before reaching 10 days of age and were all dead before 15 days while in 2005, more than 80% of second-hatched chicks fledged. Same behaviours were performed by A and B chicks in both years but the behavioural patterns did: aggression increased with age in 2004 while begging and feeding decreased in A and B chicks; these behaviours did not change with age in 2005. In chapter IV the influence of egg size on sibling rivalry was experimentally tested by eliminating age and egg quality differences within a brood and manipulating only the egg size differences. Comparisons of survival, growth and behaviour were made between experimental and control broods in which all the natural asymmetries were present. Differences in egg size determined which chick became dominant but these differences did not change the brood behaviour. Furthermore, experimental broods showed very different behaviour from control broods and the frequency of aggression was different between experimental broods formed by A- or B- eggs. In order to test if eggs are adapted for their hatching position, in chapter V an experimental manipulation of the brood composition was carried out and one of the clutch eggs' was swapped to make it hatch in a different position from the one it was made to hatch. The natural asymmetries in age and egg size were maintained. Broods with two first-laid eggs were less aggressive than control broods and than broods with two second-laid eggs. If A- and B- chicks are specifically made for their hatching position, their stress response should differ when they were artificially made to hatch on the same position and exposed to a stressor. This was tested on chapter VI and it was found that second hatched chicks from A- and B eggs did not differ on their stress response when facing a handling-stress protocol. On each year, natural broods fledged in higher proportion than experimental ones, which indicates that asymmetries within a brood are adaptive. It seems that eliminating within brood asymmetries is costly for the parents and perhaps these differences are optimal for maintaining a high efficiency index for the parents in terms of the amount of investment and the number of fledged chicks. Thus apparently, the main asymmetry influencing sibling rivalry is the difference in age of the offspring caused by hatching asynchronously.
Download or read book Marine Ornithology written by and published by . This book was released on 2003 with total page 452 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Variable Costs of Reproduction in a Long lived Seabird the Black legged Kittiwake written by Gregory Henry Golet and published by . This book was released on 1999 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Polar Research written by and published by . This book was released on 1996 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Doubly Labelled Water written by J. Speakman and published by Springer Science & Business Media. This book was released on 1997-09-30 with total page 420 pages. Available in PDF, EPUB and Kindle. Book excerpt: Divided into three parts, Doubly Labelled Water presents a clear and accessible account of this technique. Part One presents a general introduction to the study of animal energetics: Part Two discusses the theory behind use of doubled labellled water and Part Three evaluates the practical aspects of its use and the methodlologies required for its application.
Download or read book Foraging Ecology and Reproductive Energetics of Antarctic Fulmarine Petrels written by Peter John Hodum and published by . This book was released on 1999 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt:
