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Effects of cadmium on the fitness of, and interactions between, two bacterivorous nematode species. / Martinez, Joey Genevieve; dos Santos, Giovanni; Derycke, Sofie; Moens, Tom.

In: Applied Soil Ecology, Vol. 56, 01.05.2012, blz. 10-18.

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Martinez, Joey Genevieve ; dos Santos, Giovanni ; Derycke, Sofie ; Moens, Tom. / Effects of cadmium on the fitness of, and interactions between, two bacterivorous nematode species. In: Applied Soil Ecology. 2012 ; Vol. 56. blz. 10-18.

Bibtex

@article{26a3ff65c3e549e79242006b6f0ecf12,
title = "Effects of cadmium on the fitness of, and interactions between, two bacterivorous nematode species",
abstract = "Interactions between species contribute to macro- and microevolution as well as to community structure and functioning. In addition to direct predator-prey relations, many other interactions (competition, facilitation, inhibition, etc.) may be key to the structure and functioning of communities. Such interactions often occur between species belonging to the same trophic level, and have already been demonstrated between species of bacterial-feeding nematodes, but the exact mechanisms remain poorly understood. Hence, iris difficult to predict their outcome under changing environmental conditions like pollution. Scientists and policy makers have come up with standardized tests to establish environmentally acceptable levels of pollution. In this experiment, we demonstrate how sublethal levels of contaminants can affect not only the fitness of two nematode species but also the way in which these species interact. We performed monospecific and combined culture experiments with two species of soil bacterivorous nematodes, Acrobeloides nanus and Plectus parvus, under optimal conditions and compared the outcome with trials in which the nematodes were exposed to a series of sublethal cadmium concentrations. By evaluating fitness and outcome of interspecific interactions based on their abundance, our results (a) confirm the considerably higher tolerance of A. nanus than that of P. parvus to Cd: (b) demonstrate mutual facilitation between both species: (c) highlight that differential tolerance to pollution between bacterivorous species may affect the balance and outcome of their interactions leading to counterintuitive results such as a higher population fitness of one species (A. nanus) under increased pollution. (C) 2012 Elsevier B.V. All rights reserved.",
keywords = "Bacterivorous nematodes, Horizontal interaction, Facilitation, Inhibition, Fitness, Cadmium pollution",
author = "Martinez, {Joey Genevieve} and {dos Santos}, Giovanni and Sofie Derycke and Tom Moens",
year = "2012",
month = "5",
day = "1",
doi = "10.1016/j.apsoil.2012.02.001",
language = "English",
volume = "56",
pages = "10--18",
journal = "Applied Soil Ecology",
issn = "0929-1393",
publisher = "ELSEVIER SCIENCE BV",

}

RIS

TY - JOUR

T1 - Effects of cadmium on the fitness of, and interactions between, two bacterivorous nematode species

AU - Martinez, Joey Genevieve

AU - dos Santos, Giovanni

AU - Derycke, Sofie

AU - Moens, Tom

PY - 2012/5/1

Y1 - 2012/5/1

N2 - Interactions between species contribute to macro- and microevolution as well as to community structure and functioning. In addition to direct predator-prey relations, many other interactions (competition, facilitation, inhibition, etc.) may be key to the structure and functioning of communities. Such interactions often occur between species belonging to the same trophic level, and have already been demonstrated between species of bacterial-feeding nematodes, but the exact mechanisms remain poorly understood. Hence, iris difficult to predict their outcome under changing environmental conditions like pollution. Scientists and policy makers have come up with standardized tests to establish environmentally acceptable levels of pollution. In this experiment, we demonstrate how sublethal levels of contaminants can affect not only the fitness of two nematode species but also the way in which these species interact. We performed monospecific and combined culture experiments with two species of soil bacterivorous nematodes, Acrobeloides nanus and Plectus parvus, under optimal conditions and compared the outcome with trials in which the nematodes were exposed to a series of sublethal cadmium concentrations. By evaluating fitness and outcome of interspecific interactions based on their abundance, our results (a) confirm the considerably higher tolerance of A. nanus than that of P. parvus to Cd: (b) demonstrate mutual facilitation between both species: (c) highlight that differential tolerance to pollution between bacterivorous species may affect the balance and outcome of their interactions leading to counterintuitive results such as a higher population fitness of one species (A. nanus) under increased pollution. (C) 2012 Elsevier B.V. All rights reserved.

AB - Interactions between species contribute to macro- and microevolution as well as to community structure and functioning. In addition to direct predator-prey relations, many other interactions (competition, facilitation, inhibition, etc.) may be key to the structure and functioning of communities. Such interactions often occur between species belonging to the same trophic level, and have already been demonstrated between species of bacterial-feeding nematodes, but the exact mechanisms remain poorly understood. Hence, iris difficult to predict their outcome under changing environmental conditions like pollution. Scientists and policy makers have come up with standardized tests to establish environmentally acceptable levels of pollution. In this experiment, we demonstrate how sublethal levels of contaminants can affect not only the fitness of two nematode species but also the way in which these species interact. We performed monospecific and combined culture experiments with two species of soil bacterivorous nematodes, Acrobeloides nanus and Plectus parvus, under optimal conditions and compared the outcome with trials in which the nematodes were exposed to a series of sublethal cadmium concentrations. By evaluating fitness and outcome of interspecific interactions based on their abundance, our results (a) confirm the considerably higher tolerance of A. nanus than that of P. parvus to Cd: (b) demonstrate mutual facilitation between both species: (c) highlight that differential tolerance to pollution between bacterivorous species may affect the balance and outcome of their interactions leading to counterintuitive results such as a higher population fitness of one species (A. nanus) under increased pollution. (C) 2012 Elsevier B.V. All rights reserved.

KW - Bacterivorous nematodes

KW - Horizontal interaction

KW - Facilitation

KW - Inhibition

KW - Fitness

KW - Cadmium pollution

U2 - 10.1016/j.apsoil.2012.02.001

DO - 10.1016/j.apsoil.2012.02.001

M3 - Article

VL - 56

SP - 10

EP - 18

JO - Applied Soil Ecology

JF - Applied Soil Ecology

SN - 0929-1393

ER -