Materials to the Orchid Flora of Colombia
Author : Dariusz L. Szlachetko
Publisher :
Page : 0 pages
File Size : 17,18 MB
Release : 2017
Category :
ISBN :
Author : Dariusz L. Szlachetko
Publisher :
Page : 0 pages
File Size : 17,18 MB
Release : 2017
Category :
ISBN :
Author : Pavel Kindlmann
Publisher : Frontiers Media SA
Page : 162 pages
File Size : 19,81 MB
Release : 2023-08-02
Category : Science
ISBN : 2832528538
Understanding diversity patterns and the effect of global change on abundance, distribution patterns and species survival are of the most discussed topics in biodiversity research. Species are disappearing worldwide, mostly due to habitat loss, but other factors like climate change are likely to increase in importance during the 21st century. Thus, one of the most worrying issues is that we still do not know the optimal abiotic and biotic requirements for population persistence of many of the still existing species, which makes it very difficult, if not impossible, to make appropriate recommendations for their conservation in terms of proposing an effective management of their sites. Analysis of these requirements is, however, strongly dependent on the taxonomic group considered and on life history strategies of the species that comprise the group. In this Research Topic, we concentrate on this issue applied to orchids, one of the most abundant groups of flowering plants with approximately 30,000 species. They are classified among the most threatened groups worldwide. Of the approximately 1000 species that have been evaluated, almost 60% are threatened, endangered or extinct. For a few orchid species, detailed records from monitoring efforts provide opportunities for comparative analyses of species declines through time. However, for most orchid species we still lack population data and there have been few studies that have focused on the environmental factors and species traits associated with the decline of orchid sites and species numbers.
Author : Dariusz Szlachetko
Publisher :
Page : pages
File Size : 27,14 MB
Release : 2016
Category :
ISBN : 9783946583073
Author :
Publisher :
Page : 708 pages
File Size : 12,45 MB
Release : 1915
Category : Orchids
ISBN :
Author : Marta Kolanowska
Publisher :
Page : 259 pages
File Size : 33,53 MB
Release : 2014-01-01
Category :
ISBN : 9783874294751
Descriptions of 270 orchid species- The Darien Gap undeveloped swampland and forest a hotspot which extends from the Panamanian Province of Darien through to Coloumbia, along the west coast of Ecuador through Peru.
Author : Eng Soon Teoh
Publisher : Springer
Page : 382 pages
File Size : 31,26 MB
Release : 2019-07-17
Category : Science
ISBN : 303018255X
Did you know that Vanilla was formerly served as aphrodisiac by Cassanova and Madam Pompadour, and Elizabeth I loved its flavor? This is the first book that provides a complete worldwide coverage of orchids being employed as aphrodisiacs, medicine or charms and food. Opening with an in-depth historical account of orchids (orchis Greek testicle), the author describes how the Theory of Signatures influenced ancient herbalists to regard terrestrial orchid tubers as aphrodisiacs. Doctors and apothecaries promoted it during the Renaissance. Usage of orchids in Traditional Chinese Medicine, Indian Ayurvedic Medicine; by Tibetan yogins and Amchi healers for longevity pills, tonics and aphrodisiacs; by Africans to prepare 'health promoting' chikanda or as survival food when lost in the Australian bush are some highlights of the book. Early settlers in America and the East Indies often relied on native remedies and employment of orchids for such needs is described. Also covered are the search for medicinal compounds by scientists, attempts to prove the orchid's efficacy by experiment and the worry of conservationists.
Author : Robert L. Dressler
Publisher : Cornell University Press
Page : 432 pages
File Size : 44,57 MB
Release : 1993
Category : Gardening
ISBN : 9780801481390
Written in a friendly and accessible style, this guide contains keys to all the orchid genera in the region and most of the orchid species. Includes a discussion of orchid structure and ecology, plus 240 stunning color photos and over 200 line drawings.
Author : Jeewan [VNV] Singh Jalal
Publisher :
Page : 236 pages
File Size : 15,53 MB
Release : 2018
Category : Orchids
ISBN : 9788181770974
Author : J. J. Vermeulen
Publisher :
Page : 0 pages
File Size : 41,98 MB
Release : 2011
Category : Bulbophyllum
ISBN : 9789838121378
Author : Charles Darwin
Publisher : London : J. Murray
Page : 390 pages
File Size : 50,19 MB
Release : 1862
Category : Science
ISBN :
This 1862 publication describes the flower structure of orchids and their pollination to illustrate aspects of Darwin's evolutionary theory.