Download or read book Maiz written by Elisa Ramírez Castañeda and published by IICA Biblioteca Venezuela. This book was released on 2001 with total page 854 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Iowa State Journal of Research written by Iowa. State College, Cedar Falls and published by . This book was released on 1974 with total page 684 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Iowa State Journal of Research written by and published by . This book was released on 1974 with total page 596 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Insect Life History Patterns written by R. F. Denno and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume results from a symposium entitled "Species and Ufe History Patterns: Geographic and Habitat Variation", held during the National Meeting of the Entomo logical Society of America in Denver, Colorado, USA in November, 1979. The stimu lus to assemble papers on this theme emerged from continuing discussions with col leagues concerning controversies in ecology and evolutionary biology, namely those associated with plant-herbivore interactions, life history theory, and the equilibrium status of communities. The study organisms used in this series of reports are all either herbivorous insects or those intimately associated with plants. In this volume we stress the variation found in life history traits and address some of the problems inherent in current life history theory. We include as life history traits not only traditional variables such as fecundity, size of young, and age to first and peak reproduction, but also diapause and migration, traits that synchronize reproduction with favorable plant resources. Because life history traits of phytophagous insects are influenced in part by spatial and temporal variation in the quality and availability of their host plants, we also consider the role that dis continuities in plant quality play in reducing insect fitness. Lastly, much of the tra ditional life history theory concerns itself with differences between the evolution of traits or constellations of traits when populations incur primarily density-independent, compared to density-dependent, mortality. Consequently, we address this issue and attempt to shed light on the equilibrium status of several phytophagous insect com munities.

Download or read book Insect Physiology and Biochemistry written by James L. Nation, Sr. and published by CRC Press. This book was released on 2022-05-20 with total page 586 pages. Available in PDF, EPUB and Kindle. Book excerpt: Employing the clear, student-friendly style that made previous editions so popular, Insect Physiology and Biochemistry, Fourth Edition presents an engaging and authoritative guide to the latest findings in the dynamic field of insect physiology. The book supplies a comprehensive picture of the current state of the function, development, and reproduction of insects. Expanded and updated, now in full colour, this fourth edition adds three new chapters on the role of the nervous system in behavior; the ‘Genomics Revolution’ in entomology; and global climate changes which have a major effect on insects, including warming and weather. It continues to challenge conventional entomological wisdom with the latest research and analytical interpretations. The text will appeal to upper undergraduate and graduate students and to practicing biologists who need to possess a firm knowledge of the broad principles of insect physiology. With detailed full colour illustrations to help explain physiological concepts and important anatomical details, it remains the most easily accessible guide to key concepts in the field.

Download or read book Insect Diapause written by David L. Denlinger and published by Cambridge University Press. This book was released on 2022-02-03 with total page 465 pages. Available in PDF, EPUB and Kindle. Book excerpt: Our highly seasonal world restricts insect activity to brief portions of the year. This feature necessitates a sophisticated interpretation of seasonal changes and enactment of mechanisms for bringing development to a halt and then reinitiating it when the inimical season is past. The dormant state of diapause serves to bridge the unfavourable seasons, and its timing provides a powerful mechanism for synchronizing insect development. This book explores how seasonal signals are monitored and used by insects to enact specific molecular pathways that generate the diapause phenotype. The broad perspective offered here scales from the ecological to the molecular and thus provides a comprehensive view of this exciting and vibrant research field, offering insights on topics ranging from pest management, evolution, speciation, climate change and disease transmission, to human health, as well as analogies with other forms of invertebrate dormancy and mammalian hibernation.

Download or read book The Biological Bulletin written by Frank Rattray Lillie and published by . This book was released on 1964 with total page 522 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vol. 17, 21-105 contain Annual reports of the Marine Biological Laboratory for 1907/08-1952.

Download or read book Ma z Bibliograf a de las publicaciones que se encuentran en la Biblioteca Conmemorativa Orton written by and published by IICA Biblioteca Venezuela. This book was released on with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Insect Clocks written by D. S. Saunders and published by Elsevier. This book was released on 2014-05-19 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt: Insect Clocks is mainly concerned with the phenomena in which ""environmental time"" has a practical implication for the life of insects for them to perform behavioral or physiological episodes at the ""right time"" and season. This text first discusses the concept of rhythms and clocks, along with the seasonal changes in the environment that affect a particular group of organisms. This book then explains circadian rhythms of insects. Photoperiodism and seasonal cycles of development; photoperiodic response, clock, and counter; and other types of insect clock are also tackled. This text concludes by explaining the anatomical location of photoreceptors and clocks. This publication will be invaluable to those interested in studying insects and their development affected by circles of influences.

Download or read book Pesticides Documentation Bulletin written by and published by . This book was released on 1965-11 with total page 864 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Comprehensive Dissertation Index 1861 1972 Biological sciences biology and zoology written by Xerox University Microfilms and published by . This book was released on 1973 with total page 1240 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Bibliography of Agriculture written by and published by . This book was released on 1976 with total page 1732 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Annals of the Entomological Society of America written by and published by . This book was released on 1987 with total page 1074 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Entomology Abstracts written by and published by . This book was released on 1999 with total page 982 pages. Available in PDF, EPUB and Kindle. Book excerpt: Monthly, with annual author and subject indexes. Abstracts from about 2750 primary journals dealing with the subject of insects. Arranged in classified order. Entries include titles given or translated into English, authors, addresses offirst authors, and abstracts; all insects cited in the abstracts are identified by scientific family names. Each monthly issue has Index to classes and orders, Author index.

Download or read book Agricultural Zoology Reviews written by and published by . This book was released on 1989 with total page 390 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Endocrinology II written by G. A. Kerkut and published by Elsevier. This book was released on 2013-10-22 with total page 613 pages. Available in PDF, EPUB and Kindle. Book excerpt: Endocrinology II concerns the actions of hormones in insects, complementing Volume 7 which is concerned with the production and chemistry of insect hormones. While the preceding volume is directed mainly towards the insect endocrinologist, this volume has much of intrinsic interest to the general physiologist. It deals with the regulation of metabolism, reproduction, cuticle properties, and certain aspects of behaviour from a systems point of view and amply documents how hormones have provided basic insights into the functioning of such systems. Interference in endocrine regulation could provide future systems for insect control and this volume will provide the foundation on which the future formulation of these strategies is based. More information on diverse aspects of insect hormone action is brought together here than in any previous single work and this volume will therefore be a valuable reference source for many years to come.

Download or read book Ecology Abstracts written by and published by . This book was released on 1987 with total page 1050 pages. Available in PDF, EPUB and Kindle. Book excerpt: