animal eyes oxford animal biology series

Download Book Animal Eyes Oxford Animal Biology Series in PDF format. You can Read Online Animal Eyes Oxford Animal Biology Series here in PDF, EPUB, Mobi or Docx formats.

Animal Eyes

Author : Michael F. Land
ISBN : 9780199581146
Genre : Science
File Size : 90. 69 MB
Format : PDF, Docs
Download : 895
Read : 480

Get This Book


Offers an introductory, but comprehensive, account of all known types of eye, in a book whose size and style made it accessible to both undergraduate and postgraduate students, as well as established researchers in the field. This edition is updated throughout to include developments made within the last 10 years, whilst retaining the structure and scope that has made it so popular.

Das Egoistische Gen

Author : Richard Dawkins
ISBN : 9783642553912
Genre : Science
File Size : 75. 51 MB
Format : PDF, Kindle
Download : 755
Read : 1309

Get This Book


p”Ein auch heute noch bedeutsamer Klassiker“ Daily Express Sind wir Marionetten unserer Gene? Nach Richard Dawkins ́ vor über 30 Jahren entworfener und heute noch immer provozierender These steuern und dirigieren unsere von Generation zu Generation weitergegebenen Gene uns, um sich selbst zu erhalten. Alle biologischen Organismen dienen somit vor allem dem Überleben und der Unsterblichkeit der Erbanlagen und sind letztlich nur die "Einweg-Behälter" der "egoistischen" Gene. Sind wir Menschen also unserem Gen-Schicksal hilflos ausgeliefert? Dawkins bestreitet dies und macht uns Hoffnung: Seiner Meinung nach sind wir nämlich die einzige Spezies mit der Chance, gegen ihr genetisches Schicksal anzukämpfen.

Animal Osmoregulation

Author : Timothy J. Bradley
ISBN : 9780198569961
Genre : Science
File Size : 73. 46 MB
Format : PDF, Kindle
Download : 832
Read : 1152

Get This Book


Animal Osmoregulation collates a widely dispersed literature to produce a comprehensive and authoritative synthesis of the field, providing detailed examples of osmoregulatory processes at the organismal, organ and cellular level. It incorporates clear background information on ion regulation and transport (specifically in the light of recent molecular studies) and illustrates the physical principles to which each organism must adhere, as well as thephylogenetic constraints within which it must operate.

Animal Architecture Mike Hansell 2005

Author : Oxford University Press
ISBN : 9780198507512
Genre : Young Adult Nonfiction
File Size : 71. 4 MB
Format : PDF, Kindle
Download : 385
Read : 496

Get This Book


My aim in this book is to investigate and celebrate the biology of animal architecture. I believe that by writing this comprehensive overview, it can be seen that this is a coherent biological topic which gives us important insights. I last did this 20 years ago (Hansell 1984), so it is interesting for me not only to see how much the subject has developed during that time, but also how my views have changed too. Animal builders are patchily distributed through the animal kingdom, but research effort is also unevenly distributed within that. Spiders in particular have received a lot of research attention, from the level of their building material to the functional design of webs and their foraging ecology. Bird nests still remain rather under-researched, but there is a flurry of exciting research on bowerbird displays. The book reveals a need for more information in a number of areas, for example, on the composition and properties of self-secreted building materials other than silk, and the mechanical properties of nearly all structures other than spider webs. On the other hand we now have a much better understanding of how simple organisms can build large complex structures, and there have been developments in the ecological and evolutionary concepts of niche construction and ecological inheritance to which studies of animal builders have contributed. This book recognises three broad categories of structure: homes, traps and displays. Chapter 1 looks at the functional role of these: homes to protect builders from the hostile forces of the physical and biological world, foraging and feeding assisted by burrowing or by the use of nets or webs, and structures for intraspecific communication, in particular the displays of bowerbirds. Chapter 2 tests predictions relating to building materials: that self-secreted materials will tend to be more standardised and more complex than collected materials and that, because of this, they will tend to be more characteristic of dynamic structures like traps than of static ones, exemplified by houses. In Preface ix fact, collected materials prove to be quite highly standardised, while the synthesis of self-secreted materials does show some flexibility. The process of building is examined in Chapters 3 and 4. Building anatomy is shown to be generally unspecialised for delicate manipulative skills but modified for power in many burrowing species. Building behaviour is found to be simple and repetitive. These findings support predictions I have previously made (Hansell 1984, 2000). The creation of very large and complex structures is shown to be possible largely through a dialogue between the builder and the developing structure in which building actions in response to local stimuli change the stimulus situation; complex architecture is an emergent property of self-organising processes. These principles apply equally well to building by large workforces of social insects as to single individuals. Animal tools are considered in the light of these findings, because they are generally regarded as important in the context of human evolution, in spite of being small and often of simple construction. Some tool makers are found to show evidence of advanced learning and cognition, but assessment of these attributes in builders generally suffers from lack of evidence. Mechanics, growth, and design are the subjects of Chapter 5. Animal homes show how building rules can be conserved while the structures grow with the size of the individual or colony occupying them. Spiders' webs provide models for the study of engineering in tension, while display structures, in particular those of bowerbirds, provide possible models for the investigation of the evolution of an aesthetic sense. In Chapter 6, the cost of home building and its trade-offs with other life history traits is examined using examples of birds' nests and caddis cases; on trap building costs and their consequences, spider webs again supply the majority of the evidence. Buildings change the world both for builders and organisms that associate with them. These are the themes of Chapters 7 and 8. Predictions (Hansell 1987a, 1993) that builders, as ecosystem engineers, will tend to stabilise habitats, resist extinction, and promote biodiversity are examined. The last of these is clearly supported, although this is found to be largely through facultative associations by organisms with constructed habitat niches. The limitations of animal built structures as evidence of phylogeny is discussed, and the concept of a key adaptation examined with the conclusion that arthropod silk has the strongest claim to this title. Evidence that building has contributed to social evolution (Hansell 1987a) is found to be inconsistent. Finally, builders are seen to alter the course of their own evolution through ecological inheritance, the passing on to their descendents of habitats that they have altered.

Laudato Si

Author : Franziskus (Papst),
ISBN : 9783451807367
Genre : Religion
File Size : 55. 2 MB
Format : PDF, ePub, Docs
Download : 941
Read : 406

Get This Book


Mit großer Spannung wurde sie erwartet, auch von Nicht-Katholiken: Die Umwelt-Enzyklika von Papst Franziskus nimmt die heute entscheidenden Themen in den Blick; es geht um die geht um soziale, ökologische und politische Zusammenhänge. Wohl selten war ein päpstliches Schreiben so aktuell und brisant und vor allem relevant für alle Gesellschaftsschichten und Menschen weltweit. Mit "Laudato si" beweist Franziskus, dass die Kirche nach wie vor eine unverzichtbare Stimme im Diskurs zur Gestaltung der modernen Welt ist. Wer verstehen will, wie Papst und Kirche die großen Herausforderungen unserer Zeit bestehen wollen, kommt an diesem Werk nicht vorbei. Ein Muss für jeden, der an den drängenden Fragen unserer Zeit interessiert ist.

Der Erweiterte Ph Notyp

Author : Richard Dawkins
ISBN : 3662559676
Genre : Science
File Size : 34. 68 MB
Format : PDF, Docs
Download : 208
Read : 569

Get This Book


Der erweiterte Phänotyp - ein Klassiker der Evolutionsbiologie Richard Dawkins betrachtet dieses 1982 erschienene, 1999 überarbeitete und ergänzte Buch als seinen Hauptbeitrag zur Evolutionsbiologie und als Nachfolgewerk seines Bestsellers Das egoistische Gen. Für die deutschsprachige Übersetzung hat Richard Dawkins ein neues Vorwort verfasst. Dawkins erweitert in diesem Buch den Begriff des Phänotyps (als Summe aller Merkmale eines Individuums) auf die Auswirkungen der Gene dieses Individuums auf die Umwelt und auf andere Lebewesen. Beispiele sind die durch den Fortpflanzungstrieb des Bibers entstehenden Bauten, die drastische Auswirkungen auf die Umwelt haben können, oder das Gen eines Parasiten, welches das Verhalten seines Wirtes zum Nutzen des Parasiten (Saitenwurm) verändert. Dawkins betont mit diesem Ansatz die genzentrierte Sicht des Lebens. Im letzten Kapitel des Buches unternimmt er den Versuch, den Organismus neu zu definieren. Ich behaupte, dass die meisten Wissenschaftler, die meisten Autoren ein Werk haben, von dem sie sagen würden: Egal, ob Sie noch nie etwas von mir gelesen haben, lesen Sie wenigstens dies! Richard Dawkins

Photonics In Multimedia

Author : Ari Tervonen
ISBN : UOM:39015064120028
Genre : Technology & Engineering
File Size : 67. 70 MB
Format : PDF
Download : 948
Read : 647

Get This Book


Proceedings of SPIE present the original research papers presented at SPIE conferences and other high-quality conferences in the broad-ranging fields of optics and photonics. These books provide prompt access to the latest innovations in research and technology in their respective fields. Proceedings of SPIE are among the most cited references in patent literature.

Tarka Der Otter

Author : Henry Williamson
ISBN : OCLC:72136311
Genre :
File Size : 88. 48 MB
Format : PDF, Kindle
Download : 396
Read : 502

Get This Book



Der Geschmack Von Laub Und Erde

Author : Charles Foster
ISBN : 9783492958769
Genre : Science
File Size : 51. 27 MB
Format : PDF, ePub, Docs
Download : 150
Read : 284

Get This Book


Was fühlt ein Tier, wie lebt es und wie nimmt es seine Umwelt wahr? Um das herauszufinden, tritt Charles Foster ein faszinierendes Experiment an. Er schlüpft in die Rolle von fünf verschiedenen Tierarten: Dachs, Otter, Fuchs, Rothirsch und Mauersegler. Er haust in einem Bau unter der Erde, schnappt mit den Zähnen nach Fischen in einem Fluss und durchstöbert Mülltonnen auf der Suche nach Nahrung. Er schärft seine Sinne, wird zum nachtaktiven Lebewesen, beschreibt wie ein Weinkenner die unterschiedlichen »Terroirs« von Würmern und wie sich der Duft der Erde in den verschiedenen Jahreszeiten verändert. In die scharfsinnige und witzige Schilderung seiner skurrilen Erfahrungen lässt er wissenswerte Fakten einfließen und stellt sie in den Kontext philosophischer Themen. Letztendlich geht es dabei auch um die eine Frage: Was es bedeutet, Mensch zu sein.

The Eye

Author : Michael F. Land
ISBN : 9780199680306
Genre : Science
File Size : 41. 41 MB
Format : PDF, ePub
Download : 284
Read : 452

Get This Book


In this Very Short Introduction, Michael Land introduces all aspects of the eye and vision in both human and animals. He looks at the features of the human eye and retina, explores the evolution of eyes, and considers aspects of visual perception, including eye movements, vision in three dimensions, colour vision, and visual recognition.

Top Download:

Best Books