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The Simulated Emergence of Distributed Environmental Control in Evolving Microcosms

Keith L. Downing
2002 Artificial Life  
assessing the general compatibility of emergent distributed environmental control with conventional natural selection.  ...  Although these results shed little light on the question of Gaia on Earth, they support the possibility of emergent environmental control at the microcosmic level.  ...  If GRI, the average GRI value from T max to 1,000, in either run exceeds GRI thresh , then the simulation results are stored as an example of emergent distributed control.  ... 
doi:10.1162/106454602320184211 pmid:12171634 fatcat:z7qejmbhy5etjmmg7meotac7ei

Antibiotic-Resistant Genes and Bacteria as Evolving Contaminants of Emerging Concerns (e-CEC): Is It Time to Include Evolution in Risk Assessment?

Alberto Vassallo, Steve Kett, Diane Purchase, Massimiliano Marvasi
2021 Antibiotics  
ARGs/ARB are currently listed as Contaminants of Emerging Concern (CEC). In light of such characteristics, we propose to define ARGs/ARB within a new category of evolving CEC (or e-CEC).  ...  ARGs/ARB, like any other evolving determinants (e.g., viruses, bacteria, genes), escape environmental controls.  ...  Conflicts of Interest: The authors declare no conflict of interest.  ... 
doi:10.3390/antibiotics10091066 pmid:34572648 fatcat:pty6qkgmprbzpnqhdgoyhoqzni

Do evolution and ecology need the Gaia hypothesis?

Andrew Free, Nicholas H. Barton
2007 Trends in Ecology & Evolution  
Gaia theory, which describes the life-environment system of the Earth as stable and self-regulating, has remained at the fringes of mainstream biological science owing to its historically inadequate definition  ...  We review the various ways in which these issues have been addressed by evolutionary and ecological theory, and relate these to 'Gaia theory'.  ...  A.F. was supported by the School of Geosciences, University of Edinburgh, and the Darwin Trust of Edinburgh, and thanks Simon Allen for an introduction to Gaia theory.  ... 
doi:10.1016/j.tree.2007.07.007 pmid:17954000 fatcat:jwv5k3i74vhofncm3bpcmhb57i

Laboratory and microcosm experiments reveal contrasted adaptive responses to ammonia and water mineralisation in aquatic stages of the sibling species Anopheles gambiae (sensu stricto) and Anopheles coluzzii

Nwamaka Oluchukwu Akpodiete, Frédéric Tripet
2021 Parasites & Vectors  
As expected, An. coluzzii had higher emergence rates in the rice paddy environment with emerging adults of superior phenotypic quality compared to An. gambiae (s.s.), and vice versa, in the rain puddle  ...  Conclusions Evidence for such G × E interactions lends support to the hypothesis that divergent larval adaptations to the environmental conditions found in man-made habitats such as rice fields in An.  ...  The authors are grateful to all laboratory members of the Tripet Laboratory, Centre of Applied and Entomology and Parasitology, Keele University, UK, for their support during the study.  ... 
doi:10.1186/s13071-020-04483-7 pmid:33407790 fatcat:4o6lld42dveslor5qharznlsbq

Information use shapes the dynamics of range expansions into environmental gradients

Emanuel A. Fronhofer, Nicolai Nitsche, Florian Altermatt
2016 Global Ecology and Biogeography  
We contrast a setting in which dispersal propensity may evolve and the 96 organisms do not have the capacity to sense the environmental change in such a gradient (scenario 2) and 97 a scenario in which  ...  As predicted, the spatial distribution of popu-524 lation densities (A, D, G) showed an increase in densities towards the range front in the control (A) 525 and gradient (D) scenarios.  ... 
doi:10.1111/geb.12547 fatcat:okgvlb5tljhofatztggfeputry

Microbial Communities as Experimental Units

Mitch D. Day, Daniel Beck, James A. Foster
2011 BioScience  
Microbial communities are composed of potentially thousands of unique populations that evolved in intimate contact, so it is appropriate in many situations to view the community as the unit of analysis  ...  Artificial ecosystem selection experiments can be costly, but they bring the logical rigor of biological model systems to the emerging field of microbial community analysis.  ...  This article's contents are solely the responsibility of the authors and do not necessarily represent the official views of the NIH or the NSF. The authors also wish to thank Robert S.  ... 
doi:10.1525/bio.2011.61.5.9 pmid:21731083 pmcid:PMC3128510 fatcat:isundqbqwrgxnhempcokvn4mcq

Information use shapes range expansion dynamics into environmental gradients [article]

Emanuel A. Fronhofer, Nicolai Nitsche, Florian Altermatt
2016 bioRxiv   pre-print
Using modeling and controlled experiments in replicated microcosm landscapes, we show that information on environmental gradients severely impacted range dynamics and inverted the spatial distribution  ...  of population densities in comparison to controls where this information was not provided.  ...  Acknowledgements Data accessibility All data and computer code will be archived in Dryad and the DOI will be included at the end of the manuscript.  ... 
doi:10.1101/056002 fatcat:johee2mpzrfhhda2zfq4yv3iau

The Simulated Evolution of Biochemical Guilds: Reconciling Gaia Theory and Natural Selection

Keith Downing, Peter Zvirinsky
1999 Artificial Life  
In these simulations, resource competition leads to guild diversity; the ensemble of guilds then manifests life-sustaining nutrient recycling and exerts distributed control over environmental nutrient  ...  But a review of the Gaia literature, in combination with our simulation results, indicates the fallacy in these apparent incongruities between Gaia and Neo-Darwinism.  ...  Acknowledgments We are grateful to Tyler Volk and William Hamilton for helpful suggestions regarding the Guild model, and to Tyler Volk and two anonymous reviewers for comments on this paper.  ... 
doi:10.1162/106454699568791 pmid:10829084 fatcat:n7jek3z7zjet3ijkh3sweeasna

Biodiversity and Climate Change: Integrating Evolutionary and Ecological Responses of Species and Communities

Sébastien Lavergne, Nicolas Mouquet, Wilfried Thuiller, Ophélie Ronce
2010 Annual Review of Ecology, Evolution and Systematics  
This review examines the potential role of the emerging synthetic discipline of evolutionary community ecology in improving our understanding of how climate change will alter future distribution of biodiversity  ...  Today's scientists are facing the enormous challenge of predicting how climate change will affect species distributions and species assemblages.  ...  Empirical evidence therefore suggests that natural enemies can control the rates of range shifts of their prey or host species, as well as their final distribution along environmental gradients.  ... 
doi:10.1146/annurev-ecolsys-102209-144628 fatcat:2qsgbcovsjgujlesxzheiehrwu

Animal movements and population dynamics in heterogeneous landscapes

A. R. Johnson, J. A. Wiens, B. T. Milne, T. O. Crist
1992 Landscape Ecology  
Organisms respond to environmental heterogeneity at different scales and in different ways.  ...  The interactions of movement patterns with landscape features in turn produce spatial patterns in individual space-use, population dynamics and dispersion, gene flow, and the redistribution of nutrients  ...  Ims for expertise in metapopulation modeling. Support was provided by the National Science Foundation (grants BSR-8806435 to BTM and BSR-8805829 to JAW) and by the Department of Energy (grants  ... 
doi:10.1007/bf02573958 fatcat:f5tigsmaffcr7fc3tu26i5qu2y

Soil Application Effects of Metarhizium anisopliae on Japanese Beetle (Coleoptera: Scarabaeidae) Behavior and Survival in Turfgrass Microcosms

Michael G. Villani, Stephen R. Krueger, Peter C. Schroeder, Frank Consolie, Nancy H. Consolie, Luann M. Preston-Wilsey, Donald W. Roberts
1994 Environmental Entomology  
Our findings on scarab response to inundative applications of M. anisopliae mycelium may help explain some of the inconsistency in results that often occur when fungal pathogens are used to control insects  ...  studies and through'the use of radiographic analysis in the laboratory.  ...  These direct interactions are of practical concerns when inundative soil applications of fungal pathogens are applied to soil for grub control but may have their origins in an evolved behavioral response  ... 
doi:10.1093/ee/23.2.502 fatcat:crz7s2d5fjeola4alzmvgsvqgi

Evolution of dispersal polymorphism and local adaptation of dispersal distance in spatially structured landscapes

Dries Bonte, Thomas Hovestadt, Hans-Joachim Poethke
2010 Oikos  
Local adaptation of local dispersal distance emerges in landscapes with less than 70% of clumped habitat.  ...  Simulations show that mean distances of local dispersal and the probability of global dispersal, increase with increasing habitat availability, but that changes in the habitat's spatial autocorrelation  ...  HJP and TH are partially supported by a grant from the "Deutsche Forschungsgemeinschaft" (DFG PO244/4).  ... 
doi:10.1111/j.1600-0706.2009.17943.x fatcat:fpc6a32iv5dedmmldgxdvuhjcq

Microbial Communities Are Well Adapted to Disturbances in Energy Input

Nuria Fernandez-Gonzalez, Julie A. Huber, Joseph J. Vallino, Haiyan Chu
2016 mSystems  
in food availability or the introduction of exotic species.  ...  Taking advantage of an ongoing microcosm experiment, we studied how methanotrophic microbial communities adapted to disturbances in energy input over a 20-day cycle period.  ...  This work, including the efforts of Joseph J. Vallino, was funded by National Science Foundation (NSF) (OCE-1238212).  ... 
doi:10.1128/msystems.00117-16 pmid:27822558 pmcid:PMC5080406 fatcat:wfu4koimnna4lclofsms3k27j4

Considerations of Environmentally Relevant Test Conditions for Improved Evaluation of Ecological Hazards of Engineered Nanomaterials

Patricia A. Holden, Jorge L. Gardea-Torresdey, Fred Klaessig, Ronald F. Turco, Monika Mortimer, Kerstin Hund-Rinke, Elaine A. Cohen Hubal, David Avery, Damià Barceló, Renata Behra, Yoram Cohen, Laurence Deydier-Stephan (+28 others)
2016 Environmental Science and Technology  
These questions were addressed in the context of this critical review. As a result, three main recommendations emerged.  ...  What is known regarding actual ENMs in the environment, via measurements or modeling simulations?  ...  are not unique to ENMs; they are also raised for other emerging contaminants. 61 However, because the ENM industry is rapidly evolving and scientists seek to assist in advancing environmentally safe  ... 
doi:10.1021/acs.est.6b00608 pmid:27177237 pmcid:PMC4967154 fatcat:fctauiqttvbpxj6cn2kk56734u

Environment versus man radioprotection: The need for a new conceptual approach ?

F. Bréchignac
2002 Radioprotection - Revue de la Societé Francaise de Radioprotection  
chronic low-dose effects in controlled conditions.  ...  In terms of protection, man and the environment are not similar in nature in that the environment is not equivalent to a single species community to be protected.  ...  This view drives to the "ecosystem" emerging as the ultimate endpoint of environmental radioprotection.  ... 
doi:10.1051/radiopro/2002031 fatcat:twuthleburdyrbyr2tyu5pafd4
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