Pf flyers (4 résultats)

Paperback. Etat : Sehr gut. Gebraucht - Sehr gut Sg - leichte Beschädigungen oder Verschmutzungen, ungelesenes Mängelexemplar, gestempelt - Each glance into a marine plankton sample is a look into a fantastic world for anyone who wants to study protists and invertebrate animals. Nowhere is it possible to observe with a simple device such a variety of forms and taxa, developmental stages and adaptations as in a Petri dish with a small plankton sample placed under a light microscope. This book is an introduction to the most important and most common taxa present in the plankton, and it allows the identification even of numerous common species. Micrographs demonstrate characteristic forms of the phytoplankton, 70 of protozoans, more than 300 show larvae and other developmental stages, and about 90 show holoplanktonic adults of the zooplankton. The comprehensively annotated pictures are taken from living organisms, during marine excursions, mainly from the North Sea coastal area but also from other European coastlines, including the western Mediterranean. Therefore the book is excellently suited to be used in such university courses for students of zoology and marine biology as well as for their teachers, but it is certainly also a comprehensible guide for any amateur microscopist and interested layperson.In the Second Edition the most evident new feature is the considerable increase in the number of photographs. In particular, numerous Mediterranean species have been added, leading, among others, to the inclusion of entirely new plates on trematodes, sipunculids, pelagic gastropods, several crustacean taxa, enteropneusts, and holothurians.…

Paperback. Etat : Neu. Neu Neuware, Importqualität, auf Lager - Each glance into a marine plankton sample is a look into a fantastic world for anyone who wants to study protists and invertebrate animals. Nowhere is it possible to observe with a simple device such a variety of forms and taxa, developmental stages and adaptations as in a Petri dish with a small plankton sample placed under a light microscope. This book is an introduction to the most important and most common taxa present in the plankton, and it allows the identification even of numerous common species. Micrographs demonstrate characteristic forms of the phytoplankton, 70 of protozoans, more than 300 show larvae and other developmental stages, and about 90 show holoplanktonic adults of the zooplankton. The comprehensively annotated pictures are taken from living organisms, during marine excursions, mainly from the North Sea coastal area but also from other European coastlines, including the western Mediterranean. Therefore the book is excellently suited to be used in such university courses for students of zoology and marine biology as well as for their teachers, but it is certainly also a comprehensible guide for any amateur microscopist and interested layperson.In the Second Edition the most evident new feature is the considerable increase in the number of photographs. In particular, numerous Mediterranean species have been added, leading, among others, to the inclusion of entirely new plates on trematodes, sipunculids, pelagic gastropods, several crustacean taxa, enteropneusts, and holothurians. …

Gebunden. Etat : Sehr gut. Gebraucht - Sehr gut Leichte Lagerspuren -Man sollte die Natur befragen als Landwirt. Die Natur ist der beste Lehrmeister, den es gibt, denn sie macht keine Fehler.Dieter Helm, Landwirt aus BückwitzDie Ansprüche an die Landwirtschaft sind hoch. Neben der Erwirtschaftung hoher Erträge sollen die ökologischen Bodenfunktionen gefördert werden. Eine besonders fragile, und oft vergessene, Ressource dafür ist die Bodenstruktur (das Bodengefüge), die durch Witterungseinflüsse, durch Befahren und durch Bodenbearbeitung gefährdet und geformt wird. Bei der Regeneration, der Verbesserung und Stabilisierung der Bodenstruktur spielt das Bodenleben, besonders die Aktivität der Regenwürmer, eine ganz entscheidende Rolle. Die Schaffung optimaler physikalischer Bodenfunktionen, vor allem größtmögliches Infiltrationsvermögen, ist insbesondere bei Starkregenereignissen von größter Bedeutung und bietet zugleich Vorsorge für Dürreperioden.Das Bodengefüge ist ein Indikator für den Bodenzustand, der das Wirken des Bodenlebens ebenso abbildet wie die Einwirkungen unterschiedlicher Bewirtschaftungsverfahren. In diesem Buch wird beschrieben wie die Röntgen-Computertomographie (CT) ein innovatives Instrument für die Untersuchung und das Verstehen des Bodengefüges ist.Die Anwendung dieser Technik zeigt nicht nur dem Wissenschaftler und dem Spezialisten, sondern auch dem Praktiker und interessierten Laien anschaulich das faszinierende Zusammenspiel von physikalischen Bodeneigenschaften, Bodenleben und Bewirtschaftungsmaßnahmen. Sie zeigt, wie der Boden reagiert, wenn er »in Ruhe gelassen wird«, wenn er nicht oder nur schonend bearbeitet wird, oder wenn er beim Pflügen gewendet wird, und erlaubt dadurch die Beantwortung der Frage: Welche Behandlung ist die beste für den Boden 188 pp. Deutsch.…

Paperback. Etat : Sehr gut. Gebraucht - Sehr gut Sg - leichte Beschädigungen oder Verschmutzungen, ungelesenes Mängelexemplar, gestempelt - Each glance into a marine plankton sample is a look into a fantastic world for anyone who wants to study protists and invertebrate animals. Nowhere is it possible to observe with a simple device such a variety of forms and taxa, developmental stages and adaptations as in a Petri dish with a small plankton sample placed under a light microscope. This book is an introduction to the most important and most common taxa present in the plankton, and it allows the identification even of numerous common species. Micrographs demonstrate characteristic forms of the phytoplankton, 70 of protozoans, more than 300 show larvae and other developmental stages, and about 90 show holoplanktonic adults of the zooplankton. The comprehensively annotated pictures are taken from living organisms, during marine excursions, mainly from the North Sea coastal area but also from other European coastlines, including the western Mediterranean. Therefore the book is excellently suited to be used in such university courses for students of zoology and marine biology as well as for their teachers, but it is certainly also a comprehensible guide for any amateur microscopist and interested layperson.In the Second Edition the most evident new feature is the considerable increase in the number of photographs. In particular, numerous Mediterranean species have been added, leading, among others, to the inclusion of entirely new plates on trematodes, sipunculids, pelagic gastropods, several crustacean taxa, enteropneusts, and holothurians.…