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  1. Proceedings of the National Academy of Sciences, India Section B: Biological Sciences
  2. Proceedings of the National Academy of Sciences, India Section B: Biological Sciences : Volume 83
  3. Proceedings of the National Academy of Sciences, India Section B: Biological Sciences : Volume 83, Issue 3, September 2013
  4. A Commensal Consumer-Induced Mediation Effects on Resource–Consumer Interactions
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Proceedings of the National Academy of Sciences, India Section B: Biological Sciences : Volume 87
Proceedings of the National Academy of Sciences, India Section B: Biological Sciences : Volume 86
Proceedings of the National Academy of Sciences, India Section B: Biological Sciences : Volume 85
Proceedings of the National Academy of Sciences, India Section B: Biological Sciences : Volume 84
Proceedings of the National Academy of Sciences, India Section B: Biological Sciences : Volume 83
Proceedings of the National Academy of Sciences, India Section B: Biological Sciences : Volume 83, Issue 4, December 2013
Proceedings of the National Academy of Sciences, India Section B: Biological Sciences : Volume 83, Issue 3, September 2013
Insights into Cave Architecture and the Role of Bacterial Biofilm
Phenotypic Diversity for Agro-Morphological Traits in 105 Landraces of Rice (Oryza sativa L.) from Santhal Parganas, Jharkhand, India
Effect of Solution Phosphorus Concentration on the Exudation of Oxalate Ions by Wheat (Triticum aestivum L.)
Relationship of Grain Yield, ABA and Proline Accumulation in Tolerant and Sensitive Wheat Cultivars as Affected by Water Stress
Fluorotoxicosis in Diverse Species of Domestic Animals Inhabiting Areas with High Fluoride in Drinking Water of Rajasthan, India
Effect of Sub-Acute Oral Exposure of Bifenthrin on Biochemical Parameters in Crossbred Goats
Evaluation of Spinosad Against Pyrethroid Resistant Population of Helicoverpa armigera (Hubner)
Captive Breeding and Embryonic Development of Butter Catfish (Ompok bimaculatus, Bloch 1794), a Threatened Fish of Indian Sub-continent in Northern India
Genomic DNA Extraction from Ferula jaeschkeana Vatke (Apiaceae) Optimized for Random Amplified Polymorphic DNA Polymerase Chain Reaction (RAPD-PCR) analysis
Influence of Adjuncts as Debittering Aids on the Sensory and Biochemical Properties of Enzyme Modified Cheese-Base
Chemistry, Antioxidant and Antimicrobial Potentials of White Pepper (Piper nigrum L.) Essential Oil and Oleoresins
Determination of Genetic Diversity of the Morinda tinctoria Population in Historical Mandore Garden
Assessment of Geochemical Environment from Study of River Sediments in the Middle Stretch of River Ganga at Ghazipur, Buxar and Ballia area
A Commensal Consumer-Induced Mediation Effects on Resource–Consumer Interactions
Arsenicosis and Dietary Nutrient Intake Among Men and Women
Antimicrobial Activity and Identification of 4, 22-Stigmastadiene-3-one and Some Other Compounds in Motha Dhaman Grass Cenchrus setigerus from Tribal Area of Western Rajasthan
Prevalence, Serogroups, Shiga-toxin Genes and Pulsed Field Gel Electrophoresis Analyses of Escherichia coli Isolated from Bovine Milk
Cloning, Expression and Characterization of Thermophilic and Alkalophilic N-acetylglucosaminidase from Streptomyces sp. NK52 for the Targeted Production of N-acetylglucosamine
Effect of AM Fungi (Gf, Gm) on Biomass and Gymnemic Acid Content of Gymnema sylvestre (Retz.) R. Br. ex Sm.
Allelopathic Effects of Barley Extract (Hordeum vulgare) on Sucrose Synthase Activity, Lipid Peroxidation and Antioxidant Enzymatic Activities of Hordeum spontoneum and Avena ludoviciana
Determination of Bioactives and Antioxidant Activity in Eryngium foetidum L.: A Traditional Culinary and Medicinal Herb
Bryophyte Diversity on Erythrina arborescens in Nainital
Integrated Management of Alternaria Blight in Linseed
Phytochemicals in Plant Parts of Noni (Morinda citrifolia L.) with Special Reference to Fatty Acid Profiles of Seeds
Patho-Biochemical Investigations of Blight and Wilt Diseases of Tomato (Lycopersicon esculentum Mill)
Proceedings of the National Academy of Sciences, India Section B: Biological Sciences : Volume 83, Issue 2, June 2013
Proceedings of the National Academy of Sciences, India Section B: Biological Sciences : Volume 83, Issue 1, March 2013
Proceedings of the National Academy of Sciences, India Section B: Biological Sciences : Volume 82

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A Commensal Consumer-Induced Mediation Effects on Resource–Consumer Interactions

Content Provider SpringerLink
Author Chakraborty, Amit Li, Bai Lian Shi, Pei Jian Liu, Quan Xing Yang, Qing Pei
Copyright Year 2012
Abstract A general view of resource–consumer interactions is that resource intake by the consumers reduces the growth rate of resource population but it leads to an increase of consumer population. This view is proficiently interpreted with the classic Lotka–Volterra model that successfully describes the effects of changes in consumption rates due to changes in resource and consumer population densities. These effects are resulted in perpetual oscillatory dynamics of both the population densities, and the extent of the effects for given initial densities is measured by the oscillating frequency determined by the model parameters. But in many ecosystems, it has often observed a steep decline and delayed recovery in resource population that cannot be explained by the traditional Lotka–Volterra model. Foraging habits and behaviors of a consumer population may facilitate others, those usually do not affect them directly, to feed on the same resource and then to reproduce successfully. Such commensal consumers (facilitated population) can heavily influence the rate of resource exploitation and thereby affect the usual resource–consumer cycles. While involving such commensal consumer-induced effects, called here commensal mediation, into the Lotka–Volterra type models, it shows that the commensal mediation can have stabilizing or destabilizing effects on resource dynamics depending on the strength of interactions and the conditions in which the interactions occur. In the natural ecosystems where the growth rate of resource population depends on its own density even in absence of consumers, the commensal mediation provides a destabilizing effect on resource dynamics; increasing commensal population density increases the amplitude of resource fluctuations and the time laps from one peak to the next. On the other hand, in the managed ecosystems where the growth rate of resource population is expected to be maintained at a constant level in absence of consumers, the commensal mediation provides stabilizing effect at a certain condition; with a given restriction on the consumer population, decreasing mortality of the commensal population can stabilize the resource population dynamics at a stable, steady-state. Moreover, while the resource population experiences saturation effect, resource–consumer interactions with the commensal mediation exhibit a range of dynamical behaviours starting from stable equilibrium, then damped oscillation, to limit cycles as the resource carrying capacity increases from a critical level. In addition, commensal mediations with both controlling facilitator consumer population and resource harvesting are analyzed separately and the results are discussed for some exemplified managed and natural ecosystems.
Starting Page 385
Ending Page 404
Page Count 20
File Format PDF
ISSN 03698211
Journal Proceedings of the National Academy of Sciences, India Section B: Biological Sciences
Volume Number 83
Issue Number 3
e-ISSN 22501746
Language English
Publisher Springer-Verlag
Publisher Date 2012-12-24
Publisher Place India
Access Restriction One Nation One Subscription (ONOS)
Subject Keyword Density-dependent effects Life Sciences Plant Biochemistry Nucleic Acid Chemistry Behavioural Sciences Lotka–Volterra model Managed ecosystem Mediator species Natural ecosystem
Content Type Text
Resource Type Article
Subject Environmental Science Agricultural and Biological Sciences
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