Download or read book Additional Tribe of the Romaleinae Orthoptera Acrididae Notulae Naturae of The Acad of Natural Sciences of Phila No 327 written by and published by Academy of Natural Sciences. This book was released on with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Catalog of the Library of the Academy of Natural Sciences of Philadelphia written by Academy of Natural Sciences of Philadelphia. Library and published by Macmillan Reference USA. This book was released on 1972 with total page 754 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Dictionary Catalog of the Department Library written by United States. Department of the Interior. Library and published by . This book was released on 1967 with total page 832 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book National Union Catalog written by and published by . This book was released on 1970 with total page 702 pages. Available in PDF, EPUB and Kindle. Book excerpt: Includes entries for maps and atlases.

Download or read book On Certain Old World Genera of Teratodini Recently Placed in the Subfamily Romaleinae Orthoptera Acridoidea Acrididae Notulae Naturae of The Acad of Natural Sciences of Phila No 317 written by and published by Academy of Natural Sciences. This book was released on with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book New Taxa of the Subfamily Leptysminae from Brazil Acrididae Orthoptera Notulae Naturae of The Acad of Natural Sciences of Phila No 458 written by and published by Academy of Natural Sciences. This book was released on with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book New Genus of Pyrgomorphidae Orthoptera Acrididae from Burma Notulae Naturae of The Acad of Natural Sciences of Phila No 363 written by and published by Academy of Natural Sciences. This book was released on with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Melanoplus Plebejus Including Two New Subspecies Orthoptera Acrididae Cyrtacanthacridinae Notulae Naturae of The Acad of Natural Sciences of Phila No 188 written by and published by Academy of Natural Sciences. This book was released on with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The North American Grasshoppers written by Daniel Otte and published by Harvard University Press. This book was released on 1981 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt: Having received such lavish praise for the first volume of his definitive taxonomic handbook, Daniel Otte now turns his attention to the bandwing grasshoppers. As before, the book includes: - Highly detailed, full-color drawings of all species, including more than one color phase when appropriate; - Illustrated keys and lists of principal recognition features; - Information on distributional limits, habitat preferences, ecology, behavior, and life cycle; - Excellent point-distribution maps; - Pertinent references, taxonomic index, history of name changes, and an explanation of the characters used to derive phylogenies. Like its predecessor, this volume will be useful to scientists in agriculture, environmental assessment, biogeography, grassland ecology, and insect taxonomy. It will also appeal to amateur naturalists.

Download or read book Tropical Tree Physiology written by Guillermo Goldstein and published by Springer. This book was released on 2016-03-04 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the latest information on tropical tree physiology, making it a valuable research tool for a wide variety of researchers. It is also of general interest to ecologists (e.g. Ecological Society of America; > 3000 or 4000 members at annual meeting), physiologists (e.g. American Society of Plant Biologists; > 2,000 members at annual meeting), and tropical biologists (e.g. Association for Tropical Biology and Conservation, ATBC; > 500 members at annual meeting). (American Geophysical Union(AGU), > 20000 members at annual meeting). Since plant physiology is taught at every university that offers a life sciences, forestry or agricultural program, and physiology is a focus at research institutes and agencies worldwide, the book is a must-have for university and research institution libraries.

Download or read book The Kinetochore written by Peter De Wulf and published by Springer Science & Business Media. This book was released on 2008-12-16 with total page 516 pages. Available in PDF, EPUB and Kindle. Book excerpt: Kinetochores orchestrate the faithful transmission of chromosomes from one generation to the next. Kinetochores were first depicted over 100 years ago, but kinetochore research has progressed by leaps and bounds since the first description of their constituent DNA and proteins in the 1980s. “The Kinetochore: from Molecular Discoveries to Cancer Therapy” presents a thorough up-to-date analysis of kinetochore and centromere composition, formation, regulation, and activity, both in mitosis and meiosis, in humans and “model” eukaryotic species, and at natural and mutant neocentromeres. Recently initiated translational research on kinetochores is also discussed as kinetochores are being mined as a very rich target for the next generations of anti-cancer drugs.

Download or read book Studies in Spermatogenesis written by Nettie Maria Stevens and published by . This book was released on 1905 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Genetics of Sex Determination written by R.S. Verma and published by Elsevier. This book was released on 1996-04-23 with total page 387 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Genetical Theory of Natural Selection by R.A. Fisher (1930) dictated that sexual dimorphisms may depend upon a single medelian factor. This could be true for some species but his suggestion could not take off the ground as gender in Drosophila is determined by the number of X chromosomes. Technical advances in molecular biology have revived the initial thinking of Fisher and dictate that TDF or SRY genes in humans or Tdy in mice are sex determining genes. The fortuitous findings of XX males and XY female, which are generally termed sex reversal phenomenon, are quite bewildering traits that have caused much amazement concerning the pairing mechanism(s) of the pseudoautosomal regions of human X and Y chromosomes at meiosis. These findings have opened new avenues to explore further the genetic basis of sex determination at the single gene level.The aim of the fourth volume, titled Genetics of Sex Determination is to reflect on the latest advances and future investigative directions, encompassing 10 chapters. Commissioned several distinguished scientists, all pre-eminent authorities in each field to shed their thoughts concisely but epitomise their chapters with an extended bibliography. Obviously, during the past 60 years, the metoric advances are voluminous and to cover every account of genes, chromosomes, and sex in a single volume format would be a herculean task. Therefore, a few specific topics are chosen, which may be of great interest to scientists and clinicians. The seasoned scientists who love to inquire about the role of genes in sex determination should find the original work of these notable contributors very enlightening. This volume is intended for advanced students who want to keep abreast as well as for those who indulge in the search for genes of sex determination.

Download or read book Species of the West African Genus Baromia Orthoptera Acrididae Cyrtacanthacridinae Notulae Naturae of The Acad of Natural Sciences of Phila No 311 written by and published by Academy of Natural Sciences. This book was released on with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Nature Strange and Beautiful written by Egbert Giles Leigh and published by Yale University Press. This book was released on 2019-08-20 with total page 431 pages. Available in PDF, EPUB and Kindle. Book excerpt: A beautifully written exploration of how cooperation shaped life on earth, from its single-celled beginnings to complex human societies In this rich, wide-ranging, beautifully illustrated volume, Egbert Leigh explores the results of billions of years of evolution at work. Leigh, who has spent five decades on Panama’s Barro Colorado Island reflecting on the organization of various amazingly diverse tropical ecosystems, now shows how selection on “selfish genes” gives rise to complex modes of cooperation and interdependence. With the help of such artists as the celebrated nature photographer Christian Ziegler, natural history illustrator Deborah Miriam Kaspari, and Damond Kyllo, Leigh explains basic concepts of evolutionary biology, ranging from life’s single-celled beginnings to the complex societies humans have formed today. The book covers a range of topics, focusing on adaptation, competition, mutualism, heredity, natural selection, sexual selection, genetics, and language. Leigh’s reflections on evolution, competition, and cooperation show how the natural world becomes even more beautiful when viewed in the light of evolution.

Download or read book Genus Opshomala of Serville 1831 Orthoptera Acrididae Cyrtacanthacridinae Notulae Naturae of The Acad of Natural Sciences of Phila No 345 written by and published by Academy of Natural Sciences. This book was released on with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Pot Pollen in Stingless Bee Melittology written by Patricia Vit and published by Springer. This book was released on 2018-03-05 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers pot-pollen—the other product, besides honey, stored in cerumen pots by Meliponini. Critical assessment is given of stingless bee and pot-pollen biodiversity in the Americas, Africa, Asia and Oceania. Topics addressed include historical biogeography, cultural knowledge, bee foraging behavior, pollination, ecological interactions, health applications, microbiology, the natural history of bee nests, and chemical, bioactive and individual plant components in stored pollen. Pot-pollen maintains the livelihoods of stingless bees and provides many interesting biological products that are just now beginning to be understood. The Meliponini have developed particular nesting biologies, uses of building materials, and an architecture for pollen storage. Environmental windows provide optimal temperature and availability of pollen sources for success in plant pollination and pollen storage. Palynological composition and pollen taxonomy are used to assess stingless honey bee pollination services. Pollen processing with microorganisms in the nest modifies chemical composition and bioactivity, and confers nutraceutical benefits to the honey and pollen widely relished by native people. Humans have always used stingless bees. Yet, sustainable meliponiculture (stingless bee-keeping) projects have so far lacked a treatise on pot-pollen, which experts provide in this transdisciplinary, groundbreaking volume.