Diese Bestimmungshilfe für Laubbäume wurde speziell für Kinder entwickelt. Die Bestimmungsschritte der im Katalog aufgenommenen Bäume sind einfach strukturiert und auch ohne Vorwissen leicht zu meistern. Neben der eigentlichen Bestimmungsarbeit stehen noch weitere wissenswerten Informationen über Bäume zur Verfügung. [Redaktion vifabio]
The aim of the German board of trustees for old and lovable trees (Kuratorium Alte liebenswerte Bäume in Deutschland), founded in 1988, is to promote public awareness and conservation initiatives regarding old trees and tree care in Germany. [Editorial staff vifabio]
Alleen-Fan bietet mit Beiträgen zu Ökologie, Verkehr, Kultur, Tourismus, Geschichte, Gefährdung und Literatur einen Einstieg in das Thema Alleen. Zusätzlicher Schwerpunkt der Seite sind Informationen zur Kampagne zum Allenschutz, unter der Rubrik Kampagne/Lieblingsallen findet man ein deutschlandweites Verzeichnis besonderer Alleen inklusive Beschreibung und Fotos. ... [Redaktion vifabio]
The purpose of this publication is to clarify further the tree decay concept that expands the classical concept to include the orderly response of the tree to wounding and infection-compartmentalization-and the orderly infection of wounds by many microorganisms-successions. The heartrot concept must be abandoned because it deals only with decay-causing fungi and it states that these fungi grow unrestricted through heartwood after infection of fresh wounds. The heartrot concept emphasizes descriptions of decay-causing fungi and types of decayed wood. It describes disordered wood and events that occurred in the past. The expanded decay concept emphasizes the order of a compartmented tree, the order of comparimentalization, and the order of successions. Regulation of discoloration and decay depends on understanding compartmentalization and successions. ... [Information of the supplier]
The horse chestnut leaf miner (Cameraria ohridella), first observed in Macedonia in the 1970s, has spread to most parts of temperate Europe during the last decades. The caterpillar's larvae are mining the leaves of common horse chestnut (Aesculus hippocastanum), causing significant damage to the trees' foliage. This web site (in German) describes the phenomenon itself, as well as counteractive measures. ... [Editorial staff vifabio]
Forest geneticists are frequently confronted with practical questions concerning the origin, the genetic variability, or the adaptability of trees, stands, or forest reproductive material. The posers of these questions can be biologists, ecologists, foresters, private forest owners, firms dealing with forest reproductive material, nature conservation organizations, and, of course, the forest geneticists themselves for their basic research. Awareness is growing within these groups that many of these questions can be answered with the help of genetic marker technology. However, the increasing number and variety of genetic markers available for forest tree species make it difficult for the so-called "end-users" of this technology to judge which type of marker is most suitable for the given purpose. The aim of this compendium is to provide end-users with guidelines for choosing markers that are suitable for the purpose at hand. ... [Information of the supplier]
The aims of the Ancient Yew Group are described as follows: To raise public awareness of the national and world wide importance of our ancient Yews; to survey, record and monitor the health of our ancient Yews; to highlight potential threats; to research and collate all modern and historical references of our ancient Yew heritage; to provide advice to help people protect their ancient Yews; to campaign for better protection and seek government support; and, to bring together Yew tree enthusiasts, providing an opportunity to discuss, enthuse and help towards achieving the above aims. ... [Information of the supplier, modified]
The aim of the African Blackwood Conservation Project (ABCP) is to help replenish this valuable tree in Tanzania. Most people will not have knowingly seen blackwood but almost everyone will have heard it, for it is the premier wood of choice for fine concert-quality woodwind instruments such as clarinets, oboes and flutes, as well as being used in the manufacture of bagpipes. Blackwood is also the finest material available today for producing ornamental turning. In its African homeland, it is used to make intricate and highly detailed carvings, and plays a vital role in the ecology of the East African savannah. ... [Information of the supplier]
Eikes Baumschule ist eine Laubbaum-Bestimmungshilfe für Schülerinnen und Schüler ab Klassenstufe 3. Eichhörnchen Eike leitet durch einen leicht verständlichen Bestimmungsweg. Im Bestimmungsschlüssel-Bausatz können Sie kostenlos und automatisch einen Bestimmungsschlüssel maßschneidern: Für jedes Areal - zum Beispiel einen Schulhof oder ein Waldstück - lässt sich ein passender Bestimmungsschlüssel zusammenstellen. Sie können damit am Computer bestimmen oder den Schlüssel ausdrucken. Für die Optimierung der Bestimmungshilfe im Rahmen meiner Doktorarbeit benötige ich jedoch Ihre Mithilfe. Deshalb erfolgt die Anmeldung zum Bestimmungsschlüssel-Bausatz erst nach Ausfüllen eines Fragebogens, wobei Ihre Angaben selbstverständlich vertraulich behandelt werden. ... [Information des Anbieters, verändert]
Plot studies often face problems with the identification of both fertile and sterile material. Numerous books need to be taken into the field to aid in identification of specimens. The Virtual Tree Guide of the Guianas which will available on CD and accessible through the WWW may assist researchers in finding a quick match of those species that are considered to be able to reach sizes over 10 cm DBH. Over 4000 specimens have been digitized in the Utrecht Herbarium. They are organized by genus and family. As the Utrecht Herbarium has adopted the APG-1 classification the families are named accordingly. Hence, Flacourtiaceae will be found under Salicaceae, as an example. In order to make identifications possible with Jan Lindeman's punch card system, we also provide a link to the windows program "Flora" and the keys for the Surinamese plant families, "Surifam", both of which are packed into one executable zip file "Zipflora" With Flora and Surifam, you are in possession of a fast and easy synoptical key of the families (old classification) of Suriname and part of Para, Brazil. ... [Information of the supplier]