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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
21

Untersuchungen zur Stuktur und Sukzession der saproxylen Käferfauna (Coleoptera) an Eichen- und Buchentotholz / A study of structure and succession of saproxylic beetle fauna (Coleoptera) living in decaying oak and beech wood

Menke, Norbert 20 January 2006 (has links)
No description available.
22

Fire History and Natural Succession after Forest Fires in Pine-Oak Forest: / An Investigation in the Ecological Park Chipinque, Northeast Mexico / Waldbrandgeschichte und natürliche Sukzession nach Waldbränden in Kiefern-Eichen-Mischwäldern: / Eine Untersuchung in dem Naturpark Chipinque, Nordost-Mexiko

González Tagle, Marco Aurelio 24 February 2005 (has links)
No description available.
23

Succession in fen woodland ecosystems in the Dutch Haf District with special reference to Betula pubescens Ehrh /

Wiegers, Jaap. January 1985 (has links)
Thesis (doctoral)--Universiteit van Amsterdam, 1985. / Five charts in back cover pocket. Text in English, with foreword and summary in Dutch. Includes bibliographical references (p. 147-152).
24

Rhythms and Evolution: Effects of Timing on Survival

Pace, Bruno 11 March 2016 (has links)
The evolution of metabolism regulation is an intertwined process, where different strategies are constantly being developed towards a cognitive ability to perceive and respond to an environment. Organisms depend on an orchestration of a complex set of chemical reactions: maintaining homeostasis with a changing environment, while simultaneously sending material and energetic resources to where they are needed. The success of an organism requires efficient metabolic regulation, highlighting the connection between evolution, population dynamics and the underlying biochemistry. In this work, I represent organisms as coupled information-processing networks, that is, gene-regulatory networks receiving signals from the environment and acting on chemical reactions, eventually affecting material flows. I discuss the mechanisms through which metabolism control is improved during evolution and how the nonlinearities of competition influence this solution-searching process. The propagation of the populations through the resulting landscapes generally point to the role of the rhythm of cell division as an essential phenotypic feature driving evolution. Subsequently, as it naturally follows, different representations of organisms as oscillators are constructed to indicate more precisely how the interplay between competition, maturation timing and cell-division synchronisation affects the expected evolutionary outcomes, not always leading to the \"survival of the fastest\".
25

Diversität und Ökologie holzbewohnender Pilze in Khonin Nuga, Westkhentey, Mongolei / Diversity and Ecology of wood-inhabiting fungi in Khonin Nuga, Westkhentey, Mongolia

Sunjidmaa, Renchin 29 June 2009 (has links)
No description available.
26

Die Initialphase der Vegetationsentwicklung nach Windwurf in Buchen-Wäldern auf Zechstein- und Buntsandstein-Standorten des südwestlichen Harzvorlandes / The initial phase of plant succession in windthrown beech (Fagus sylvatica) forests on base-rich and acidic sites in the Harz mountain foothills of southern Lower Saxony, Germany

Kompa, Thomas 03 November 2004 (has links)
No description available.
27

From arable field to forest: Long-term studies on permanent plots / Vom Acker zum Wald: Dauerflächenuntersuchungen zur Sukzession auf Ackerbrachen

Dölle, Michaela 23 September 2008 (has links)
No description available.

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