Mart In Rivas

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Mart In Rivas

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Author : Alberto Blest Gana
language : es
Publisher:
Release Date : 1997

Mart In Rivas written by Alberto Blest Gana and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with Chile categories.

Grasslands Of The World

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Author : Victor R. Squires
language : en
Publisher: CRC Press
Release Date : 2018-09-05

Grasslands Of The World written by Victor R. Squires and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-09-05 with Nature categories.

This book begins with a brief account of the extraordinary sequence of events that led to emergence of grasslands as major vegetation formations that now occupy some of the driest and hottest and the highest and coldest on earth as well as vast steppes and prairies in more temperate climes. It is the story of grasses successfully competing with forests and woodlands, aided and abetted by grazing herbivores and by humans and their use of fire as a tool. It is a story of adaptation to changing climates and the changing biophysical environments. A major focus of the book is the Palaearctic biogeographic realm that extends over some 45 million km2 and thus more than 1/3 of the terrestrial ice-free surface on Earth. It comprises extensive grasslands of different types and origin, which can be subdivided into (1) natural grasslands with (1a) steppes (climatogenic in dry climates), (1b) arctic-alpine grasslands (climatogenic in cold climates) and (1c) azonal and extrazonal grasslands (pedogenic and topogenic) as well as (2) secondary grasslands created and sustained by human activities, such as livestock grazing, mowing or burning. Grasslands of the Palaearctic do not only form a major basis for the agriculture of the region and thus its food supply, but are also crucial for other ecosystem services and host a supra proportional part of the realm’s plant and animal diversity. To reflect that suitability of grasslands for biodiversity strongly depends on their state, we apply the term High Nature Value grassland to those natural grasslands that are not degraded (in good state) and those secondary grasslands that are not intensified (semi-natural). The situation in a variety of countries where grasslands are evolving under the influence of global climate change is also considered. Case studies are presented on Southern Africa, Eastern Africa, India, China, South America, North America and Australia. The concluding chapter examines a set of themes arising from the chapters that make up the bulk of this book. The following provide a focus: recent history of grassland biomes – brief recap of current thinking and recent trends with special reference to dry grasslands in the Palearctic regions; the current status of grasslands and germplasm resources (biodiversity) – an overview; management systems that ensure sustainability; how to recover degraded grasslands; socio-economic issues and considerations in grassland management; the impacts of environmental problems in grasslands such as future climate change and intensification and the problems/prospects facing pastoralists and other grassland-based livestock producers.

Plant Landscape Of Corsica

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Author : Pauline Delbosc
language : en
Publisher: Springer Nature
Release Date : 2020-03-05

Plant Landscape Of Corsica written by Pauline Delbosc and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-03-05 with Science categories.

Since the 1970s and particularly the works of Tüxen (1978) and Géhu & Rivas-Martínez (1981), dynamico-catenal phytosociology has facilitated the integration of vegetation dynamics by more precisely describing the trajectories of vegetation series. A national habitat mapping program (CarHAB), launched by France’s Ministry of Ecology, aims to map the vegetation and vegetation series of metropolitan France at a scale of 1: 25,000 by 2025. In this context, Corsica has been selected as a pilot region, due to its unique characteristics regarding Mediterranean and alticole vegetation. This book describes in detail the vegetation series and geoseries (ecology, structure, dynamic trajectories, effects of anthropogenic factors on vegetation dynamics, catenal positioning in the landscape) of two Corsican sectors: Cap Corse and Biguglia pond. These two study sites were selected using two methods: • For Cap Corse, the typology and mapping are based on an inductive approach, which seeks to understand the dynamics of vegetation by drawing on the mature, substitutional, pioneering and anthropogenic associations likely to exist within a tessellar envelope. These various dynamic stages characterize “the vegetation series” (sigmetum or synassociation), the fundamental unit of symphytosociology (Géhu 2006; Biondi 2011). The aim of symphytosociology is, therefore, to define the vegetation series; in other words, it seeks to identify the repetitive combinations of syntaxa under homogeneous ecological conditions. • For Biguglia pond, the typology and mapping are based on a deductive approach, which combines (under SIG) the ecological descriptor maps with the vegetation mapping, in order to reveal the tesselas and the natural potential vegetation that underlies them. Thanks to the improvement of GIS techniques, this approach has been frequently used to characterize plant landscapes from vegetation to vegetation geoseries since the 2000s, with applications to the conservation management of natural and semi-natural environments.

Biogeography And Ecology Of The Pityusic Islands

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Author : K. Kuhbièr
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06

Biogeography And Ecology Of The Pityusic Islands written by K. Kuhbièr and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.

A large part of this book is dedicated to the geology of the Pityusic Archipelago, followed by contributions on climate and geography. Funguses, mosses and leeks are the subjects of taxonomical botany, and a further paper deals with the vegetation of the islands. Another large part of this book is concerned with zoology: faunal lists on fleas, bees, wasps, ants, butterflies, beetles, snails, amphibians and reptiles, birds and mammals, the latter with their epi- and endofaunas as well as their subfossil remains are presented in 13 different papers. Three of them deal with the special problems of isolation and evolution of new races on rocks and small islets: tenebrionid beetles, lizards and terrestrial snails. Man, as an important factor in the Pityusic Islands, is dealt with in six contributions: prehistory, which means pre-Phoenician and which is treated for the first time, folk architecture, the 'endemic' dialect of the Catalonian language, exploitation of some natural resources and finally the problems of inbreeding and related matters on Formentera. The book closes with an outlook on the present state of the Pityusic nature and tries to show ways of conserving all important parts of the archipelago, so that 'our' two islands may preserve some of their typical vegetation, plants and animals and, thus, of their character.

Vascular Plant Communities Of Morocco

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Author : Mohammed Sghir Taleb
language : en
Publisher: Springer
Release Date : 2018-12-28

Vascular Plant Communities Of Morocco written by Mohammed Sghir Taleb and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-12-28 with Science categories.

This book offers a comprehensive overview of the phytosociological information currently available in Morocco – a country famous for its floristic and landscape diversity. There has been little literature on the topic; however, in recent decades there have been a number of advances in the field of vegetation communities in the country, and several new phytosociological units have been described. This inventory includes 670 associations (communities or groupments), 97 alliances, 66 orders and 44 classes. Although these figures are underestimations, they clearly reflect the great richness and diversity of the country’s ecosystems. For each association the book provides useful information, including vegetation belt, bioclimate, altitude, substrate/soil, geographical distribution and additional comments. The book is a basic tool for scientific researchers, students and naturalists interested in phytoecology in Morocco and Mediterranean Basin.

The Vegetation Of The Iberian Peninsula

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Author : Javier Loidi
language : en
Publisher: Springer
Release Date : 2017-09-18

The Vegetation Of The Iberian Peninsula written by Javier Loidi and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-09-18 with Science categories.

This book provides a compact, up-to-date and detailed overview of the vegetation of the Iberian Peninsula, a highly diverse part of Europe in the Mediterranean area. Written by a group of experienced researchers, the volume includes a first section with general chapters discussing the climate, the biogeography and the flora, and a second section with detailed descriptions of the 14 regional sectors into which the peninsula and Balearic Islands have been divided. A third section explores special features, such as aquatic vegetation, gypsum and dolomite vegetation, coastal vegetation, mountain flora and vegetation, conservation issues and alien flora.

Vegetation Index And Dynamics

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Author : Eusebio Cano Carmona
language : en
Publisher: BoD – Books on Demand
Release Date : 2022-02-23

Vegetation Index And Dynamics written by Eusebio Cano Carmona and has been published by BoD – Books on Demand this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-02-23 with Science categories.

The book contemplates different ways of approaching the study of vegetation as well as the type of indices to be used. However, all the works pursue the same objective: to know and interpret nature from different points of view, either through knowledge of nature in situ or the use of technology and mapping using satellite images. Chapters analyze the ecological parameters that affect vegetation, the species that make up plant communities, and the influence of humans on vegetation.