http://blog.gmane.org/gmane.science.biology.foodwebs hourly 1 1901-01-01T00:00+00:00 http://gmane.org/img/gmane-25t.png http://gmane.org http://comments.gmane.org/gmane.science.biology.foodwebs/62 <pre>Hi to all, Please bring the attached notices to the attention of any students who may be interested. Contact info is on each of the postings. Thanks in advance for your assistance. Jim James D. Simons, Ph.D. Associate Research Scientist Center for Coastal Studies Natural Resources Center 3200 6300 Ocean Drive, Unit 5866 Corpus Christi, Texas 78412-5866 O 361.825.3223 * F 361.825.2770 _______________________________________________ Foodwebs_foodwebs.info mailing list foodwebs-meEmJjl1h1Ek+I/owrrOrA&lt; at &gt;public.gmane.org https://ml01.ispgateway.de/mailman/listinfo/foodwebs_foodwebs.info </pre> Simons, James 2012-05-03T19:06:38 http://comments.gmane.org/gmane.science.biology.foodwebs/61 <pre>Dear All, Attached (or at http://www.eur-oceans.eu/?q=node/28903) is a job advert for a PostDoc position for "Developing marine community models for sustainable management of marine fisheries in Western Europe" We seek to fill this position as soon as possible, and would appreciate if you could forward this message to anybody who might be interested. For details on the job and the application procedure, please contact Keith Farnsworth &lt;k.farnsworth-4nBedr2rK6xaa/9Udqfwiw&lt; at &gt;public.gmane.org&gt;. Many thanks Axel _______________________________________________ Foodwebs_foodwebs.info mailing list foodwebs-meEmJjl1h1Ek+I/owrrOrA&lt; at &gt;public.gmane.org https://ml01.ispgateway.de/mailman/listinfo/foodwebs_foodwebs.info </pre> Axel G. Rossberg 2012-03-08T15:05:38 http://comments.gmane.org/gmane.science.biology.foodwebs/60 <pre>Please find attached a flyer for the British Ornithologist's Union conference (3-5 April 2012) "Ecosystem services: Do we need birds?" In addition to some excellent debates, there will be a number of foodweb talks which might be of interest. Please can you circulate the flyer as widely as possible. Thank you Darren Evans ........................................................ Dr. Darren M. Evans Lecturer in Conservation Biology d.evans&lt; at &gt;hull.ac.uk T +44 (0)1482 465187 Department of Biological Sciences Room 314A Hardy Building University of Hull Cottingham Road Hull HU6 7RX Website &lt;http://www2.hull.ac.uk/science/biological_sciences/people/academic_staf f/darren_evans.aspx&gt; ....................................................... We've teamed up with the Observer newspaper and need your help monitoring the spread of 10 invasive species. Click on the link below for more details and become a citizen scientist! http://www.guardian.co.uk/environment/gallery/2012/jan/15/</pre> Darren M Evans 2012-01-30T12:55:23 http://comments.gmane.org/gmane.science.biology.foodwebs/59 <pre> We currently have funded PhD scholarships available in the Department of Biological Sciences, University of Hull. The scholarships are awarded to the best quality candidates. Anyone wishing to study the impacts of environmental change on the structure and dynamics of ecological networks should contact me in the first instance to discuss their ideas. See http://www2.hull.ac.uk/science/biological_sciences/people/academic_staff/darren_evans.aspx for more details about my lab. PhD Studentships in Biological Sciences University of Hull To celebrate the University's research successes, the University of Hull is offering 25 PhD Studentships in the thematic areas of the Faculty of Science, including in the following Biological areas: Biological Sciences Biomedical Sciences &lt;http://www2.hull.ac.uk/science/biological_sciences/research/biomedical_sciences.aspx&gt; Evolutionary Biology &lt;http://www2.hull.ac.uk/science/biological_sciences/research/evolutionary_biology.aspx&gt; Functional Ecology &lt;http://www2.hull.ac.</pre> Darren M Evans 2012-01-23T18:06:03 http://comments.gmane.org/gmane.science.biology.foodwebs/58 <pre> Postdoctoral Research Associate (Ecology &amp; Evolutionary Biology) Department of Biological Sciences Applicants with a strong background in evolutionary biology and/or ecology are invited for the position of post-doctoral Research Associate to investigate the impacts of climate change on farmland ecological networks. The post holder will use both novel molecular approaches and ecological networks to determine how climate-driven changes affect the ecosystem service of natural biocontrol. With an emphasis on how altered host-parasitoid interactions affect agricultural crop yields, the economic impacts of climate-driven changes will also be determined. The successful candidate will join the interdisciplinary group of Drs. Darren Evans and Dave Lunt (Biological Sciences) and Dr. Jonathan Atkins (Hull University Business School, HUBS) as part of the University's Centre for Adaptive Science and Sustainability (CASS). CASS is committed to working in close partnership with the business community to de</pre> Darren M Evans 2012-01-23T12:32:23 http://comments.gmane.org/gmane.science.biology.foodwebs/57 <pre>PhD opportunities in the Stouffer Lab at the University of Canterbury (New Zealand) The Stouffer Lab at the University of Canterbury (New Zealand) is seeking applicants for up to three fully-funded PhD fellowships to work on topics related to ecological complexity and understanding the structure and dynamics of ecological networks. Because of the interdisciplinary nature of the projects, we are interested in applicants from ecology, computational biology, computer science, applied mathematics, engineering, physics, or other related areas. Interested applicants should see http://stoufferlab.org/opportunities/ for information on how to apply and for more information about our research group. Applications close 30 November 2011. - Daniel </pre> Daniel B. Stouffer 2011-11-02T21:49:09 http://comments.gmane.org/gmane.science.biology.foodwebs/56 <pre>Dear Colleagues, Hereby a large set of abiotics and nematological data I made publicly available in Ecology and a paper on part of the data. Enjoy! Regards, Christian Ecological Society of America Table of Contents Alert EcologyVolume: 92, Number: 10 (October) The above issue is now available online from Ecological Society of America at: http://www.esajournals.org/toc/ecol/92/10?ai=rv&amp;ui=npv&amp;af=H Nematode traits and environmental constraints in 200 soil systems: scaling within the 60–6000 μm body size range Christian Mulder and J. Arie Vonk Ecology, Vol. 92, No. 10 (October). Abstract | Full Text | PDF (167 KB) Wiley Online Library Open Access Alert Ecology and EvolutionEarly View Trait-mediated diversification in nematode predator-prey systems Christian Mulder, Johannes Helder, Mariëtte T. W. Vervoort and J. Arie Vonk Ecology and Evolution, October, 2011 (DOI - 10.1002/ece3.36). http://onlinelibrary.wiley.com/doi/10.1002/ece3.36/</pre> Christian Mulder 2011-10-07T17:38:14 http://comments.gmane.org/gmane.science.biology.foodwebs/55 <pre>Dear All, For those of you yet without plans for this week (^_-), there will be two-day mini-symposium on The structure and dynamics of ecological networks held at University of Fribourg, CH, on 8-9 September 2011 (Thu and Fri). Registration is still open until Monday September 5. For details, see http://www.unifr.ch/biol/ecology/CUSO/FWSTR2011/index.html . Best, Axel </pre> Axel G. Rossberg 2011-09-03T12:41:32 http://comments.gmane.org/gmane.science.biology.foodwebs/54 <pre>Dear colleagues I recently defended my thesis entitled Food Web Ecology: M. Hartvig. Food Web Ecology – individual life-histories and ecological processes shape complex communities. 2011. ISBN: 978-91-7473-080-7. Ph.D. thesis, Department of Theoretical Ecology, Lund University, Sweden. It is available here: http://hvig.dk/2011/03/food_web_ecology-phd_thesis/ . Printed books are available upon request. Abstract: This thesis sets out a food web framework for size-structured populations. The framework enables an ecological approach to food web modelling as the individual life-history from birth, through maturation, and ultimately death is explicitly resolved with the use of bioenergetics based on individual body size. Each population resolves size-structure through a size-spectrum containing the individual abundance as a continuous function of body size. Individuals select prey items of a suitable size, which can be popularised as "big ones eat smaller ones". This allows individuals to change diet through</pre> Martin Hartvig 2011-06-22T09:01:12 http://comments.gmane.org/gmane.science.biology.foodwebs/53 <pre>Dear Colleagues The following paper on allometry in soil food webs appeared in the current April issue of OIKOS devoted to SIZEMIC. You can find it by following the link: http://onlinelibrary.wiley.com/doi/10.1111/j.1600-0706.2011.18869.x/abstract Regards, Christian Disclaimer RIVM _______________________________________________ Foodwebs_foodwebs.info mailing list foodwebs-meEmJjl1h1Ek+I/owrrOrA&lt; at &gt;public.gmane.org https://ml01.ispgateway.de/mailman/listinfo/foodwebs_foodwebs.info </pre> Christian Mulder 2011-03-27T15:06:42 http://comments.gmane.org/gmane.science.biology.foodwebs/52 <pre>Dear colleagues The following paper will appear in the coming issue of JTB: Hartvig, M., Andersen, K.H., and Beyer, J.E. 2011. Food web framework for size-structured populations. Journal of Theoretical Biology, 272(1):113-122. It is available here: http://www.sciencedirect.com/science/article/B6WMD-51NNPP5-3/2/68180937e23cd6983caa410a7d9c192d and here: http://arxiv.org/abs/1004.4138 Abstract: We synthesise traditional unstructured food webs, allometric body size scaling, trait-based modelling, and physiologically structured modelling to provide a novel and ecologically relevant tool for size-structured food webs. The framework allows food web models to include ontogenetic growth and life-history omnivory at the individual level by resolving the population structure of each species as a size-spectrum. Each species is characterised by the trait 'size at maturation', and all model parameters are made species independent through scaling with individual body size and size at maturation. Parameter </pre> Martin Hartvig 2011-02-18T10:10:33 http://comments.gmane.org/gmane.science.biology.foodwebs/51 <pre>Dear food-webbers, The following paper was recently published online in Proceedings B Gagic, V.,Tscharntke, T., Dormann, C.F., Gruber, B.,Wilstermann, A.,Thies,C. 2011 Food web structure and biocontrol in a four-trophic level system across a landscape complexity gradient doi:10.1098/rspb.2010.2645 Available at http://rspb.royalsocietypublishing.org/content/early/2011/02/07/rspb.2010.2645.abstract Please contact Vesna Gagic (vgagic&lt; at &gt;gwdg.de) with any questions Abstract Decline in landscape complexity owing to agricultural intensification may affect biodiversity, food web complexity and associated ecological processes such as biological control, but such relationships are poorly understood. Here, we analysed food webs of cereal aphids, their primary parasitoids and hyperparasitoids in 18 agricultural landscapes differing in structural complexity (42–93% arable land). Despite little variation in the richness of each trophic group, we found considerable change</pre> Vesna Gagic 2011-02-16T11:04:57 http://comments.gmane.org/gmane.science.biology.foodwebs/50 <pre>A message forwarded from Peter de Ruiter... ************************************************ Please pass this information to anyone who might be interested Prof. dr. Peter C. de Ruiter, Biometris, Wageningen UR Visiting address: Radix, Gebouw 107, Droevendaalsesteeg 1, 6708 PB, Wageningen P.O.Box 100, 6700 AC Wageningen Telephone: +31 (0)317 - 481368 (secr. 484085) E-mail: Peter.deRuiter-kYp8Ca87YEA&lt; at &gt;public.gmane.org ; Web: www.biometris.nl ______________________________________________________________________________________ We look for candidates for two PhD-projects Food webs describe biological communities in terms of feeding interactions, i.e. 'who eats whom'. In ecosystems with many species, food web diagrams reveal highly complex networks of resource-consumer interactions. From theoretical analysis it is known that such networks might be relatively unstable, which means that the networks may easily fall apart when they are disturbed. In ecological terms this means that environmental change may pu</pre> Axel G. Rossberg 2011-02-11T14:22:21 http://comments.gmane.org/gmane.science.biology.foodwebs/49 <pre> PhD position at the University of Potsdam The Department of Ecology and Ecosystem Modeling performs ecological research on aquatic communities that respond to the sudden and gradual impacts of global change. We presently offer a PhD position in the project: Warm and fragile: Temperature and vulnerability to extinction in pelagic food webs for experimental work on the effects of elevated temperatures on recovering plankton communities. This work is part of a larger DFG-funded project that combines both theoretical and empirical research. Project description Our overarching goal is to explain which mechanisms support the recovery of disturbed communities, and which mechanisms may prevent it, in a context of global warming. You will perform experiments at different temperatures that involve grazing, predation, competition and re-introductions of species that were lost from the system. You will work with both temperate and (sub-)tropical plankton species in communities of varying complex</pre> Matt Vos 2011-01-26T16:13:54 http://comments.gmane.org/gmane.science.biology.foodwebs/48 <pre>PhD position at the University of Potsdam The Department of Ecology and Ecosystem Modeling performs ecological research on aquatic communities that respond to the sudden and gradual impacts of global change. We presently offer a PhD position in the project: Warm and fragile: Temperature and vulnerability to extinction in pelagic food webs for experimental work on the effects of elevated temperatures on recovering plankton communities. This work is part of a larger DFG-funded project that combines both theoretical and empirical research. Project description Our overarching goal is to explain which mechanisms support the recovery of disturbed communities, and which mechanisms may prevent it, in a context of global warming. You will perform experiments at different temperatures that involve grazing, predation, competition and re-introductions of species that were lost from the system. You will work with both temperate and (sub-)tropical plankton species in communities of varying complexity</pre> Matt Vos 2011-01-26T16:11:10 http://comments.gmane.org/gmane.science.biology.foodwebs/47 <pre>Dear Colleagues The following paper on intervality in food webs appeared in the current issue of J R Soc Interface. Regards, Axel Food-web structure in low- and high-dimensional trophic niche spaces A. G. R., Å. Brännström, and U. Dieckmann, J. R. Soc. Interface, 7, 1735–1743 (2010), doi:10.1098/rsif.2010.0111 http://rsif.royalsocietypublishing.org/content/7/53/1735.abstract Abstract: A question central to modelling and, ultimately, managing food webs concerns the dimensionality of trophic niche space, that is, the number of independent traits relevant for determining consumer--resource links. Food-web topologies can often be interpreted by assuming resource traits to be specified by points along a line and each consumer's diet to be given by resources contained in an interval on this line. This phenomenon, called intervality, has been known for 30 years and is widely acknowledged to indicate that trophic niche space is close to one-dimensional. We show that the degrees of i</pre> Axel G. Rossberg 2010-12-07T17:12:32 http://comments.gmane.org/gmane.science.biology.foodwebs/46 <pre>... a message about upcoming events by the _open_ SIZEMIC research network ... Best, Axel _______________________________________________ Foodwebs_foodwebs.info mailing list foodwebs-meEmJjl1h1Ek+I/owrrOrA&lt; at &gt;public.gmane.org https://ml01.ispgateway.de/mailman/listinfo/foodwebs_foodwebs.info </pre> Axel G. Rossberg 2010-11-16T15:28:35 http://comments.gmane.org/gmane.science.biology.foodwebs/45 <pre>Dear Colleagues The following paper has appeared in Proceedings B. (Connoisseurs might also find online Appendix 6 interesting.) Best, Axel Universal power-law diet partitioning by marine fish and squid with surprising stability-diversity implications A. G. Rossberg, K. D. Farnsworth, K. Satoh and J. K. Pinnegar Proc. R. Soc. B, online, 2010, doi: 10.1098/rspb.2010.1483 http://rspb.royalsocietypublishing.org/content/early/2010/11/09/rspb.2010.1483.abstract Abstract: A central question in community ecology is how the number of trophic links relates to community species richness. For simple dynamical food-web models, link density (the ratio of links to species) is bounded from above as the number of species increases; but empirical data suggest that it increases without bounds. We found a new empirical upper bound on link density in large marine communities with emphasis on fish and squid, using novel methods that avoid known sources of bias in traditional approaches. Bounds ar</pre> Axel G. Rossberg 2010-11-10T11:14:52 http://comments.gmane.org/gmane.science.biology.foodwebs/44 <pre>Dear Food-webbers Here I just want to take the opportunity to remind you of the possibility to spread news of your recent work on this mailing list. This example http://news.gmane.org/find-root.php?message_id=%3c4BA1530E.6080700%40noaa.gov%3e from the "marine mammals" mailing list (http://news.gmane.org/gmane.science.biology.marmam), where such announcements appear regularly, may serve as a model. The scheme is very simple and open to variation: Greetings, full reference, link, contact, abstract. Let me give it a try below. Regards, Axel ****************************************************** The following paper, relating species' traits to trophic interaction strengths via an abstract "trophic niche space" has recently appeared in Theoretical Ecology. A. G. Rossberg, Å. Brännström, and U. Dieckmann, 2010. How trophic interaction strength depends on traits — A conceptual framework for representing multidimensional trophic niche spaces, Theor. Ecol., 3(1), 13–24. </pre> Axel G. Rossberg 2010-03-31T15:54:12 http://comments.gmane.org/gmane.science.biology.foodwebs/42 <pre>Dear Colleagues, If you know of promising students who might like to do research about the patterns of extinctions in food webs, please advise them to consider either of the PhD advertised here: http://owenpetchey.staff.shef.ac.uk/PosAvail/PosAvail.html (Students should pay careful attention to the eligibility criteria.) Many thanks and best wishes, Owen -- Owen Petchey Department of Animal and Plant Sciences University of Sheffield owenpetchey.staff.shef.ac.uk </pre> Owen Petchey 2010-03-14T19:45:36 http://comments.gmane.org/gmane.science.biology.foodwebs/41 <pre>PhD Student Position in Theoretical Ecology A PhD student position in theoretical ecology is available in the Department of Mathematics Informatics &amp; Physics at the AgroParisTech, Paris, France (http://www.agroparistech.fr/-English-version-.html). The aim of the project is to model the topology of ecological networks with the last developments of statistical models for heterogeneous random graphs. During the first year of the project, the candidate will review the clustering algorithms and mixtures models aimed at identifying modules in graphs. He will define the most appropriate methods for studying ecological networks. During the second year of the project, he will use the selected methods to elucidate the topology of a host-parasite interaction network (tree-parasitic fungus network). The impacts of (1) the nature of data (binary versus quantitative) (2) the spatial and temporal scales of sampling and (3) the integration of other interaction types (tree-phytophageous insects) on the modularity of the ne</pre> cvacher-HqCLM+YuXIoFUMMlFB+e1Q< at >public.gmane.org 2010-03-10T08:54:33 Search the mailing list at Gmane query http://search.gmane.org/?group=$group=gmane.science.biology.foodwebs