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Saturday, August 8, 2020 | History

3 edition of Population dynamics of microorganisms associated with caladium seedpieces found in the catalog.

Population dynamics of microorganisms associated with caladium seedpieces

by Richard S. Ferriss

  • 93 Want to read
  • 23 Currently reading

Published .
Written in English

    Subjects:
  • Soil microbiology.,
  • Soil fungi.,
  • Plants -- Effect of fungicides on.

  • Edition Notes

    Other titlesCaladium seedpieces.
    Statementby Richard S. Ferriss.
    The Physical Object
    Paginationviii, 138 leaves :
    Number of Pages138
    ID Numbers
    Open LibraryOL24137419M
    OCLC/WorldCa5982479

    Estimating taxon-specific population dynamics in diverse microbial communities. Ecosphere 9(1):e /ecs Abstract. Understanding how population-level dynamics contribute to ecosystem-level processes is a primary focus of ecological research and has led to important breakthroughs in the ecology of macroscopic organisms. A microorganism, or microbe, is a microscopic organism, which may exist in its single-celled form or in a colony of cells.. The possible existence of unseen microbial life was suspected from ancient times, such as in Jain scriptures from 6th century BC India and the 1st century BC book On Agriculture by Marcus Terentius scientific study of microorganisms began with their observation.

    An area of specific size used for sampling a population; often used to sample immobile organisms or those that move very little Mark-recapture A method in which animals are captured, marked with a tag, collar, or band, released, then recaptured at a later time to determine an estimate of population size. The success of such enterprises has varied greatly and is related to the interactions between mortality, dispersal, and growth of the organisms. In this paper, we have constructed a stage‐based matrix model for short‐term population dynamics of seeded sea scallops (Placopecten magellanicus). Our goals were to predict scallop survival to.

    Population Demographics & Dynamics Imagine sailing down a river in a small motorboat on a weekend afternoon; the water is smooth, and you are enjoying the sunshine and cool breeze when suddenly you are hit in the head by a pound silver carp. Purchase Population Dynamics and Laboratory Ecology, Volume 37 - 1st Edition. Print Book & E-Book. ISBN ,


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Population dynamics of microorganisms associated with caladium seedpieces by Richard S. Ferriss Download PDF EPUB FB2

Soil Blol. Bachern. Vol. 57 to 63 Pergamon Press Ltd Printed in Great Britain 0 POPULATION DYNAMICS OF SOIL MICROORGANISMS ASSOCIATED WITH FUNGICIDE-DUSTED CALADIUM SEEDPIECES R.

FERRISS* and D. MITCHELL Plant Pathology Department, University of Florida, Gainesville, FLU.S.A. Cited by: 4. Population dynamics of microorganisms associated with caladium seedpieces Population dynamics of microorganisms associated with caladium seedpieces by Ferriss, Richard S.

Publication date Topics Soil microbiology, Soil fungi, Plants CollectionPages: Journals & Books; Help Download full text in PDF Download. Share. Export. Advanced. Soil Biology and Biochemistry. Vol Issue 1,Pages Population dynamics of soil microorganisms associated with fungicide-dusted caladium by: 4.

Europe PMC is an archive of life sciences journal literature. Population dynamics of soil microorganisms associated with fungicide-dusted caladium by: 4.

ACKNOWLEDGMENTS Thepeopleandinstitutionswhichcontributedinsomeway tothecompletionofthisdissertationaremanyandvaried. Iwouldliketothankmymajorprofessor,ll. Author: Ferriss RS, Journal: Soil biology & biochemistry[] Population dynamics of soil microorganisms associated with fungicide-dusted caladium seedpieces.

Population dynamics of microorganisms associated with caladium seedpieces / by Richard S. Ferriss. By Richard S.

Ferriss. Topics: Dissertations, Academic, Effect of fungicides on, Plant Pathology, Plant Pathology thesis Ph. D, Plants, Soil fungi, Soil microbiology, UF. Population dynamics of microorganisms associated with caladium seedpieces / By Richard S.

Ferriss Topics: Dissertations, Academic, Effect of fungicides on. Book. Population dynamics and disturbance regime of the threatened plant Square-stemmed Spike-rush Population dynamics of microorganisms associated with caladium seedpieces /.

The persistence in soil of captan and thiram was investigated by means of a technique in which the fungicidal content of soil was assayed by incubating plugs of soil containing fungicide on agar plates seeded with spores of Myrothecium verrucaria and measuring the diameter of the zone of fungal inhibition that was produced.

When the fungicides were well distributed in soil they showed. Ferriss's 6 research works with citations and reads, including: Relationship of mycorrhizal activity to time following reclamation of surface mine land in western Kentucky.

Population dynamics. Population dynamics is the portion of ecology that deals with the variation in time and space of population size and density for one or more species (Begon et al.

).In practice investigations and theory on population dynamics can be viewed as having two broad components: first, quantitative descriptions of the changes in population number and form of population growth.

Reprinted from Vkislas on Nemtology Concepts and Principles of Population Dynamics H. FERRIS AND L. WILSON Professor, Division of Nematology, University of California, Davis, CA Associate Professor, Department of Entomology, University of California, Davis, CA A population is a collection of individu- als of a single species of organisms spatially.

However, similar net feedback dynamics may be driven by a set of forces common across microbial communities. We outline a general conceptual framework for understanding the forces that structure microbial population dynamics on plant roots and how these processes generate positive and negative feedbacks on plant growth.

The composition of the soil microbial community can be altered dramatically due to association with individual plant species, and these effects on the microbial community can have important feedbacks on plant ecology.

Negative plant-soil feedback plays primary roles in maintaining plant community diversity, whereas positive plant-soil feedback may cause community conversion. Host-specific. A population is a collection of individual organisms of the same species that occupy some specific area.

The term "population dynamics" refers to how the number of individuals in a population changes over time. Biologists study the factors that affect population dynamics because they are interested in topics such as conservation of endangered. While population size and density describe a population at one particular point in time, scientists must use demography to study the dynamics of a population.

Demography is the statistical study of population changes over time: birth rates, death rates, and life expectancies. These population characteristics are often displayed in a life table. The exponential growth model describes how a population changes if its growth is unlimited.

This model can be applied to populations that are small and/or have no competition for resources. The logistic growth model describes how a population changes. To predict the regional dynamics of S. hispanica, the authors used individual-based simulations parameterized using field observations and combining a matrix-based account of local population dynamics, estimates of migration via dispersal kernels, and scenarios of herbivory and stochastic rates of local population extinctions.

which studies the interactions among organisms and between the organism and its physical (abiotic) environment. Ecology is basically concerned with four levels of biological organisation – organisms, populations, communities and biomes.

In this chapter we explore ecology at organismic and population levels. ORGANISM AND ITS ENVIRONMENT. Population Dynamics. A population is a group of individuals (all members of a single species) who live together in the same habitat and are likely to interbreed.

Each population has a unique physical distribution in time and space. It may contain individuals of different ages and its size (density) is likely to change over time, growing or shrinking according to the reproductive success of its.The population behavior of unicellular microorganisms has been thoroughly studied both experimentally [1–3, 19–22] and theoretically [23–27] over the past decades.

In contrast, comparatively little is known about the collective fission dynamics of asexually reproducing higher organisms .Populations of bacteria and pseudomonads increased by 2 and 4 log10 cfu g−1 seed during priming to reach between 7 and 10 log10 cfu g−1 seed with less than 1 log10 cfu g−1 seed decrease after redrying, irrespective of seed type or priming process.

Pseudomonads represented approximately 10% of the culturable bacterial population.