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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 35
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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 35
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Author: G. Kunkel
Publisher: Springer
ISBN: 9789401015684
Category : Science
Languages : en
Pages : 511
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Book Description
When asked by the General Editor to prepare a book-length treatment concerning the nature of the Canary Islands, our aims were rather ambitious. A general monograph was to be written, embracing all the disciplines of natural history applicable to these islands, and over twenty scientists were approached for contributions. However scientists are 'time machines' ; our proposed list of contents has changed a good many times. Cooporation of other authors was gained and, finally, a fairly rounded project appeared revealing different and lesser known aspects of Canary Island Nature. Since Centuries the Canary Islands have attracted the attention of travellers. Earliest reports may be traced back some two thousand years but real scientific investigation began about 1800, the time of Alexander von Humboldt and his visit to the islands; older reports are scarce, sometimes rather confusing because of geographic inaccuracies. But the 19th Century will remain as the century of fundamental explorations, connected with names such as Leopold von Buch, F. C. MacGregor, Sabin Berthelot, Philip Barker Webb, J. Viera y Clavijo, F. von Fritsch, C. Bolle, D. H. Christ, O. Simony, G. Hartung, H. Mayer etc. , all familiar and intimately connected with our knowledge of the natural history of the archipelago. Even the much criticised Ernst Haeckel has provided us with lively descriptions of his visit to one of the 'Fortunate Islands'. The 20th Century brought new interest, new fields to be explored, and new expeditions to the islands.
Author: Marcelino J. del Arco Aguilar
Publisher: Springer
ISBN: 3319772554
Category : Science
Languages : en
Pages : 437
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Book Description
The volcanic and oceanic nature of the Canary Islands, its rich plant biodiversity and high rate of endemism, as well as the relict character of some of its plant communities make it a territory of great biological interest. The main geographic, climatic, bioclimatic, biogeographic and floristic features of the Islands are shown and related to the distributional pattern of potential communities along an altitudinal gradient. Current vegetation units and their ecology are described and illustrated with numerous pictures. Potential vegetation units are summarized and comprehensive maps of the potential natural vegetation for each island are given. Human impact on the natural landscape, the occurrence of invasive plants, and the probable impact of climate change on the flora and vegetation are discussed. The conservation status of flora and vegetation are assessed. Four appendixes include a syntaxonomical scheme, a brief history of botanical studies and explorations in the Islands, ethnobotanical notes, and a list of selected literature.
Author: Miguel Ángel Cabrera Pérez
Publisher:
ISBN: 9788424135553
Category : Botany
Languages : en
Pages : 192
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Book Description
Over 150 species with their scientific, common and family names, and their geographical distribution. Morphological features, value to man, use in gardens, flowering and fruit-bearing periods, degree of rarity and level of protection.
Author: David Bramwell
Publisher:
ISBN:
Category : Nature
Languages : en
Pages : 346
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Author: Dagmar Martina Hanz
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Aim: Functional traits can help us to elucidate biogeographical and ecological processes driving assemblage structure. We analysed the functional diversity of plant species of different evolutionary origins across an island archipelago, along environmental gradients and across geological age, to assess functional aspects of island biogeographical theory. Location: Canary Islands, Spain. Major taxa studied: Spermatophytes. Time period: Present day. Methods: We collected data for four traits (plant height, leaf length, flower length and fruit length) associated with resource acquisition, competitive ability, reproduction and dispersal ability of 893 endemic, non-endemic native and alien plant species (c. 43% of the Canary Island flora) from the literature. Linking these traits to species occurrences and composition across a 500 m × 500 m grid, we calculated functional diversity for endemic, non-endemic native and alien assemblages using multidimensional functional hypervolumes and related the resulting patterns to climatic (humidity) and island biogeographical (geographical isolation, topographic complexity and geological age) gradients. Results: Trait space of endemic and non-endemic native species overlapped considerably, and alien species added novel trait combinations, expanding the overall functional space of the Canary Islands. We found that functional diversity of endemic plant assemblages was highest in geographically isolated and humid grid cells. Functional diversity of non-endemic native assemblages was highest in less isolated and humid grid cells. In contrast, functional diversity of alien assemblages was highest in arid ecosystems. Topographic complexity and geological age had only a subordinate effect on functional diversity across floristic groups. Main conclusions: We found that endemic and non-endemic native island species possess similar traits, whereas alien species tend to expand functional space in ecosystems where they have been introduced. The spatial distribution of the functional diversity of floristic groups is very distinct across environmental gradients, indicating that species assemblages of different evolutionary origins thrive functionally in dissimilar habitats.
Author: Johannes Lid
Publisher:
ISBN:
Category : Botany
Languages : en
Pages : 246
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Author: David Bramwell
Publisher:
ISBN: 9788472071032
Category : Botany
Languages : en
Pages : 220
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Author: Hubert Möller
Publisher:
ISBN:
Category : Plants
Languages : en
Pages : 178
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Book Description
Author: DRMW
Publisher:
ISBN: 9781652768371
Category :
Languages : en
Pages : 192
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Book Description
The Canary Islands are a major tourist holiday destination. Exploring the flora of these islands adds another dimension to such holidays. This book will aid the reader in the identification of the various plant life to be found on these islands.The Canary Islands are a member of the group of four archipelagos known as Macaronesia, in the north Atlantic Ocean, off the coast of Europe and Africa. These are the Azores and Madeira (Portuguese), the Canary Islands (Spain) and The Azores (now independent). They all experience in essence a Mediterranean climate.At their nearest point they are 100 kilometres west of Morocco. In order of size, largest to smallest they are Tenerife, Fuerteventura, Gran Canaria, Lanzarote, La Palma, La Gomera, El Hierro and La Graciosa. They are all volcanic in origin with Lanzarote still showing obvious volcanic activity. El Hierro was the last to experience an eruption in 2011. Tenerife and Gran Canaria are the most populated. There are ferry links between most of these islands. As a popular tourist destination La Gomera is the quietest island for exploring by car and on foot. Lanzarote is the closest island to the mainland in the east and El Hierro the most westerly island. The oldest islands are those to the east. They are favourite destinations of tourists from the UK and Europe being available throughout the year with sun and warmth.The Caldera de Taburiente National Park in La Palma, Garajonay National Park in La Gomera and Teide National Park and the botanic garden in Puerto de la Cruz in Tenerife are all excellent for plant life. However, all the islands have a botanical interest. Many plant habitats exist. These are conveniently divided up for discussion into five Vegetation Zones, that occur at different heights above sea level.0-700 metres a dry Xerophytic zone of succulents and Halophytes (salt loving).200-600 metres Thermophile Forest zone with for example Junipers and Olives.400-1500 metres Laurisilva Evergreen Forest500-900 metres Pine Forests. Above 1900 metres a high mountain zone.Many exotic plant species found on the Canary Islands originated from many tropical and subtropical places in the world, carried by travelers many years ago. The Canary Islands were a stopping place for ships travelling between South America and Spain. Examples are: Australia, the Grevilleas (Grevillea robusta).Madagascar and Australia, the Fire Tree (Brachchiton acerifolium).South America, the Jacaranda (Jacarandia mimosifolia).Gabon, the Tulip Tree (Spathodea campanulata).The Bougainvillea (Bougainvillea spectabilis) originated in Brazil.Botanic explorations of the Canary Islands date from the 18th century when plant collectors from Kew in the UK first visited. One such collector was the Scottish botanist Francis Masson. Many other botanists since that time have explored the flora of the Canary Islands.The flora is most interesting and diverse and there are many endemic plants. The book is illustrated with colour photographs. On La Gomera in particular, but also on other islands to varying extents, Laurisilva Forest is found. At the end of the book is a section illustrating the trees that can be found in particular in this habitat.
