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Thursday, August 6, 2020 | History

2 edition of Towards a theory of the functioning of aquatic ecosystems found in the catalog.

Towards a theory of the functioning of aquatic ecosystems

A. F. Alimov

Towards a theory of the functioning of aquatic ecosystems

by A. F. Alimov

  • 264 Want to read
  • 26 Currently reading

Published by Backhuys Publishers in Leiden .
Written in English

    Subjects:
  • Aquatic ecology -- Mathematical models.,
  • Biotic communities -- Mathematical models.

  • Edition Notes

    Includes bibliographical references (p. 117-127).

    StatementAlexander F. Alimov.
    Classifications
    LC ClassificationsQH541.5.W3 A55513 2003
    The Physical Object
    Paginationv, 130 p. :
    Number of Pages130
    ID Numbers
    Open LibraryOL3451690M
    ISBN 109057821346
    LC Control Number2005357239
    OCLC/WorldCa53848009

    Ecosystem functions are natural processes or exchange of energy that take place in various plant and animal communities of different biomes of the world. For instance, green leaves prepare food and roots absorb nutrients from the soil, herbivores feed on the leaves and the roots and in .   Studies of ecosystems employ diverse approaches, including theory and modeling, long-term investigations, comparative research and large experiments. The journal Ecosystems features a distinguished team of editors-in-chief and an outstanding international editorial board, and is recognized worldwide as a home for significant research.

    Aquatic ecologists have contributed greatly to the evolution of ideas and concepts within the field. In this review, we discuss how the paradigm that biodiversity is an important factor for the functioning of aquatic ecosystems is currently maturing with more realistic . Ecosystem service providers/ trophic level Functional units Spatial scale Potential to apply this conceptual framework for ecological study Aesthetic, cultural All biodiversity Populations, species, communities, ecosystems Local‐global Low Ecosystem goods Diverse species Populations, species, communities, ecosystems Local‐global Medium.

    Ecosystemic approach, form of environmental governance that places ecosystemic dynamics at the heart of environmental policy making. The ecosystemic approach grounds policy making in a scientific understanding of the environment, the ecosystem paradigm. An ecosystem is a functional unit or complex of relations in which living organisms (plants, animals, fungi, and microorganisms) interact . Empirical Model of the Functioning of Aquatic Ecosystems. Barinova SS* ecosystem theory. Toward a new generation of ecol ogical modelling.


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Towards a theory of the functioning of aquatic ecosystems by A. F. Alimov Download PDF EPUB FB2

Additional Physical Format: Online version: Alimov, A.F. (Aleksandr Fedorovich). Towards a theory of the functioning of aquatic ecosystems. Leiden: Backhuys Publishers, Aquatic Functional Biodiversity: An Ecological and Evolutionary Perspective provides a general conceptual framework by some of the most prominent investigators in the field for how to link eco-evolutionary approaches with functional diversity to understand and conserve the provisioning of ecosystem services in aquatic systems.

Rather than. Aquatic Functional Biodiversity: An Ecological and Evolutionary Perspective provides a general conceptual framework by some of the most prominent investigators in the field for how to link eco-evolutionary approaches with functional diversity to understand and conserve the provisioning of ecosystem services in aquatic systems.

Rather than producing another methodological book, the. Towards a theory of the functioning of aquatic ecosystems. toon extra info Productivity of water-bodies. Relationship between structural and functional characteristics; Biotic balance and energy flows in ecosystems; Flows of matter and information in ecosystems.

Information flows; Stability and steadiness of aquatic ecosystems; Aquatic. Toward the application of ecological concepts in EU coastal water management Area oriented monitoring as a strategy for merging ecosystem theory, ecosystem management and EU requirements evaluating the species structure and the functioning of the aquatic ecosystems in our transitional and coastal water by:   In the Anthropocene, dams – whether for power production, irrigation supply or other purposes – are one of the greatest threats to river flows and the persistence of freshwater biodiversity and ecosystem processes and functions (Grill et al., ; Reid et al., ; Zarfl, Lumsdon, Berlekamp, Tydecks, & Tockner, ).

Freshwater resources are increasingly used, wasted and polluted, with the result that aquatic ecosystems are threatened and sometimes destroyed.

Aquatic ecosystems provide several services for producing, regulating and structuring. Wetlands improve water quality by trapping sediments, filtering pollutants and absorbing nutrients.

It is possible to decompose ecosystem functioning into: (i) the size of stocks of energy and material (e.g. biomass, batch nutrients), (ii) the flow of energy and transformation of material (e.g. primary or secondary productivity, decomposition of organic matter, nutrient recycling), and (iii) variation in the stocks and flows over time (Pacala.

The levels of organization of biodiversity include ecosystems, species and genes. • An ecosystem is a dynamic complex of plant, animal and microorganism communities and non-living (abiotic) elements, all interacting as a functional unit.

An ecosystem’s character changes as community. A size-dependent equation for mortality rate (M(w)) of fish-sized particles is derived using preexisting theory on the distribution of biomass as a function of size (w) in the pelagic marine ecosystem, assuming that mortality is primarily due to equation M(w) = ckw −x (where c, k, and x are parameters) yields estimates that are close to observed mortality rates.

Aquatic ecosystems perform many important environmental functions. For example, they recycle nutrients, purify water, attenuate floods, recharge ground water and provide habitats for wildlife.

[11] Aquatic ecosystems are also used for human recreation, and are very important to the tourism industry, especially in coastal regions.

Behavioral food web ecology. The role of behavior has been an important topic in studies focusing on predator-prey interactions and was first investigated in aquatic ecosystems [13,14], although much research was biased toward emphasizing risk-aversive prey behavior (reviewed in [15,16]).However, Lima's plea [] to ‘put back predators in the predator-prey interactions’ has been realized.

This open access book surveys the frontier of scientific river research and provides examples to guide management towards a sustainable future of riverine ecosystems. Principal structures and functions of the biogeosphere of rivers are explained; key threats are identified, and effective solutions for restoration and mitigation are provided.

Here, we present a community perspective on how to explore, exploit and evolve the diversity in aquatic ecosystem models. These models play an important role in understanding the functioning of aquatic ecosystems, filling in observation gaps and developing effective strategies for water quality management.

In this spirit, numerous models have been developed since the s. The aquatic ape hypothesis (AAH), also referred to as aquatic ape theory (AAT) is the idea that ancestors of modern humans were more aquatic than those of other great apes. The hypothesis was initially proposed by the marine biologist Alister Hardy inwho argued that a branch of apes was forced by competition over terrestrial habitats to hunt for food such as shellfish on the sea shore.

The chapter reviews different types of energy flow in marine ecosystems, i.e. bottom-up control (control by primary producers), top-down control (control by predators) and wasp-waist control (control by numerically dominant species).

No general theory can yet be ascribed to the functioning of marine ecosystems. The practice of ecological restoration, firmly grounded in the science of restoration ecology, provides governments, organizations, and landowners a means to halt degradation and restore function and resilience to ecosystems stressed by climate change and other pressures on the natural world.

Globally, forests cover nearly one third of the land area and they contain over 80% of terrestrial biodiversity. Both the extent and quality of forest habitat continue to decrease and the associated loss of biodiversity jeopardizes forest ecosystem functioning and the ability of forests to provide ecosystem services.

In the light of the increasing population pressure, it is of major. This finding is in line with recent evidence from freshwater ecosystems [11,62], highlighting the apparent prevalence of taxonomic redundancy within functional groups in aquatic communities.

Our results therefore suggest that community size structure may have a stronger effect on ecosystem functioning than taxonomic diversity per se in aquatic. This book is a concise review of the current knowledge on aquatic biofilms with an emphasis on the characteristics and ecology of biofilms in natural ecosystems and a focus on biofilm applications linked to water pollution problems.

Fundamentals of Ecosystem Science provides a compact and comprehensive introduction to modern ecosystem science. This book covers major concepts of ecosystem science, biogeochemistry, and energetics.

It addresses, contrasts, and compares both terrestrial and aquatic ecosystems.(). Measures of ecosystem structure and function derived from analysis of flow. (). On the bahavior of some proposed goal functions for ecosystem development.

(). Perspective in ecological theory. ().Understanding ecosystems Natural ecosystems include the forests, grass-lands, deserts, and aquatic ecosystems such as ponds, rivers, lakes, and the sea. Man modified ecosystems include agricultural land and urban or industrial land use patterns. Each ecosystem has a set of common features that can be observed in the field.