The Effects of Temporal Heterogeneity in Nutrient Supply on Grassland Species PDF Download

Author: David Aplin
Publisher:
ISBN:
Category :
Languages : en
Pages : 185

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Author: Chunhua Liu
Publisher: Frontiers Media SA
ISBN: 2889637972
Category :
Languages : en
Pages : 239

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Aquatic plants refer to a diverse group of aquatic photosynthetic organisms large enough to be seem with the naked eye, and the vegetative parts of which actively grow either permanently or periodically (for at least several weeks each year) submerged below, floating on, or growing up through the water surface. These include aquatic vascular plants, aquatic mosses and some larger algae. Aquatic plants are grouped into life forms, each of which relates differently to limiting factors and has distinct ecological functions in aquatic ecosystems. Life form groups include emergent macrophytes (plants that are rooted in sediment or soils that are periodically inundated, with all other structures extending into the air), floating-leaved macrophytes (rooted plants with leaves that float on the water surface), submersed macrophytes (rooted plants growing completely submerged), free submerged macrophytes (which are not rooted but attached to other macrophytes or submerged structures) and free-floating macrophytes (plants that float on the water surface). Aquatic plants play an important role in the structure and function of aquatic ecosystems by altering water movement regimes, providing shelter and refuge and serving as a food source. In addition, aquatic plants produce large standing crops which can also stabilize sediments, accumulate large amounts of nutrients thus improving water healthy. Thus, because of their ecological role, aquatic plants are an important component of aquatic ecosystems. Aquatic plants are very vulnerable to human activities and global changes, and many species of the plants had become endangered in the past several decades due to habitat loss, flooding, damming, over foraging, biological invasion and eutrophication, which might not be halted but enforced in the future when more extreme weathers coincide with enhanced human activities.

Author: A. Lüscher
Publisher: vdf Hochschulverlag AG
ISBN: 9783728129413
Category :
Languages : en
Pages : 280

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Author: Rossano Bolpagni
Publisher: Frontiers Media SA
ISBN: 2889660834
Category : Science
Languages : en
Pages : 116

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This eBook is a collection of articles from a Frontiers Research Topic. Frontiers Research Topics are very popular trademarks of the Frontiers Journals Series: they are collections of at least ten articles, all centered on a particular subject. With their unique mix of varied contributions from Original Research to Review Articles, Frontiers Research Topics unify the most influential researchers, the latest key findings and historical advances in a hot research area! Find out more on how to host your own Frontiers Research Topic or contribute to one as an author by contacting the Frontiers Editorial Office: frontiersin.org/about/contact.

Author: Michael Hutchings
Publisher: Cambridge University Press
ISBN: 9780632057146
Category : Nature
Languages : en
Pages : 454

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Spatial and temporal heterogeneity.

Author: W. G. Braakhekke
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 180

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Competition experiments in the field show that Plantago lanceolata and Chrysanthemum leucanthemum occupy partly different niches in time. The yield of P. lanceolata decreased after two years, probably by senescence and auto-inhibition. The reaction of C. leucanthemum to this caused high Relative Yield Total (RYT), but there was no equilibrium.

Author: P. G. Tow
Publisher: CABI
ISBN: 9780851997032
Category : Science
Languages : en
Pages : 344

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This book describes how competition between plant species, and succession in plant ecosystems, operate in grasslands and grazed pastures, both natural and sown. It discusses how competition both affects botanical structure, productivity and persistence of pastures and is itself regulated by biological, environmental and management factors, such as grazing animals. The book also examines the ways in which competition and succession are analysed, evaluated and measured, and brings to the agricultural arena the considerable progress made in understanding the principles of competition from theoretical and experimental ecology.

Author: David Gibson
Publisher: OUP Oxford
ISBN: 0191651230
Category : Science
Languages : en
Pages : 319

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The field of plant population ecology has advanced considerably in the last decade since the first edition was published. In particular there have been substantial and ongoing advances in statistics and modelling applications in population ecology, as well as an explosion of new techniques reflecting the availability of new technologies (e.g. affordable and accurate Global Positioning Systems) and advances in molecular biology. This new edition has been updated and revised with more recent examples replacing older ones where appropriate. The book's trademark question-driven approach has been maintained and some important topics such as the metapopulation concept which are missing entirely from the current edition are now included throughout the text.

Author: Francisco Pugnaire
Publisher: CRC Press
ISBN: 1420007629
Category : Nature
Languages : en
Pages : 744

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Following in the footsteps of the successful first edition, Functional Plant Ecology, Second Edition remains the most authoritative resource in this multidisciplinary field. Extensively revised and updated, this book investigates plant structure and behavior across the ecological spectrum. It features the ecology and evolution of plant crowns and a

Author:
Publisher:
ISBN:
Category : Natural history
Languages : en
Pages : 472

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