http://mta.mmab.ca/ 2012-05-20T04:13:27-03:00 http://mta.mmab.ca/ http://mta.mmab.ca/lib/images/favicon.ico text/html 2011-08-02T10:06:54-03:00 http://mta.mmab.ca/doku.php?id=abstracts&rev=1312290414&do=diff Publication list without abstracts 2011 * M Grey and ZV Finkel. The Joggins Fossil Cliffs UNESCO world heritage site: a review of recent research. Atlantic Geology. Accepted. * ZP Mei, ZV Finkel, AJ Irwin. [Phytoplankton growth allometry and size-dependent C:N stoichiometry revealed by a variable quota model]. Mar. Ecol. Prog. Ser. 434: 29-43 10.3354/meps09149. text/html 2012-02-16T16:25:11-03:00 http://mta.mmab.ca/doku.php?id=background&rev=1329423911&do=diff What is macroecology and biogeochemistry? ---------- Macroecology is the study of the emergent statistical properties of complex ecological systems. Macroecological research differs from traditional ecological research in its focus on synthetic and emergent properties of complex ecological systems (Brown 1995). text/html 2007-07-02T14:20:51-03:00 http://mta.mmab.ca/doku.php?id=chlorophyll&rev=1183396851&do=diff Controls on the temporal and spatial variation of remote sensed chlorophyll The continual, ongoing measurement of ocean colour across much of the ocean together with databases of ecologically important variables (irradiance, nutrients, mixed layer depths) makes it possible to investigate the determinants of phytoplankton biomass from an empirical perspective. Theoretical considerations are used to inform the development of an empirical statistical model. We aim to extract functional relationsh… text/html 2012-02-16T16:25:11-03:00 http://mta.mmab.ca/doku.php?id=co2&rev=1329423911&do=diff CO2 sampling, prediction, and flux Variability in real and measured sea-surface pCO2 is a result of real variation, and under- and unequal sampling of the ocean surface. Consequently the marginal value of additional data for improving estimates of CO2 flux varies tremendously as a function of position. We are currently examining the variability in pCO2 maps as a function of space, time of year, and data density with the ultimate goal is to improve estimates of CO2 flux. text/html 2009-08-18T19:28:33-03:00 http://mta.mmab.ca/doku.php?id=contact&rev=1250634513&do=diff Zoe V. Finkel Environmental Science Program Mount Allison University Sackville, NB, E4L 1E6 Canada <zfinkel at mta dot ca> +1 (506) 364-2615 Andrew J. Irwin Dept. of Mathematics and Computer Science Mount Allison University 67 York St., Sackville, NB, E4L 1E6 Canada text/html 2012-02-16T16:25:11-03:00 http://mta.mmab.ca/doku.php?id=ecophysiology&rev=1329423911&do=diff Eco-physiological characterization of different phytoplankton groups In the first half of the 20th century Alfred Redfield and Richard Fleming established that marine plankton have a relatively constrained elemental ratio of 106C: 16N: 1P atoms, that is remarkably similar to the ratio of dissolved fixed inorganic nitrogen to phosphate in seawater. These observations led to the paradigm that on average the phytoplankton will consume inorganic nitrogen and phosphate in the proportions that they … text/html 2012-02-16T16:25:11-03:00 http://mta.mmab.ca/doku.php?id=macroevolution&rev=1329423911&do=diff Macroecological and Macroevolutionary change in the size structure of phytoplankton communities The response of an organism to its environment is strongly influenced by its size. As a result numerous fundamental patterns in physiology, ecology and evolution are affected by organism size. For the phytoplankton, their size not only influences their physiology and community structure over different spatial and temporal scales but because they are the principal primary producers, their community s… text/html 2012-04-20T16:17:46-03:00 http://mta.mmab.ca/doku.php?id=members&rev=1334949466&do=diff Faculty Zoe V. Finkel (Environmental Science) My research interests focus on the eco-physiological controls of phytoplankton community structure, feedbacks between phytoplankton community structure and climate change, and the macroevolutionary history of phytoplankton communities. (Google scholar, Researcher ID B-9626-2008.) text/html 2012-04-20T16:09:30-03:00 http://mta.mmab.ca/doku.php?id=opportunities&rev=1334948970&do=diff Research opportunity for undergraduate students Opportunities are available for enthusiastic undergraduate students that would like research experience. The research projects are varied and interdisciplinary. Students with interests and background in any combination of environmental science, math and computer science, physics, chemistry and biology are welcome to contact Drs. Irwin and/or Finkel. text/html 2009-01-30T02:34:26-03:00 http://mta.mmab.ca/doku.php?id=posters&rev=1233297266&do=diff Some recent posters are provided below. Please contact us before referencing these results in publications. * ZP Mei, ZV Finkel, AJ Irwin. ASLO 2009 January, Nice. [Light and Nutrient Availability Affect Size-scaling of Phytoplankton Growth]. Manuscript in review. text/html 2012-05-18T11:39:01-03:00 http://mta.mmab.ca/doku.php?id=publications&rev=1337351941&do=diff Publications and citations from Google Scholar (Irwin, Finkel) and Researcher ID (Irwin, Finkel). Publication list with abstracts. 2012 * AJ Irwin, AM Nelles, ZV Finkel. Phytoplankton niches estimated from field data. Limnology and Oceanography 57(3). In press. [Preprint]. Worksheet of niche data and univariate response functions are also available at Pangaea 10.1594/PANGAEA.778968 * HM van Tol, AJ Irwin, ZV Finkel. Macroevolutionary trends in silicoflagellate skeletal morphology: the co… text/html 2010-05-28T08:32:38-03:00 http://mta.mmab.ca/doku.php?id=publicdata&rev=1275046358&do=diff Ocean biogeographic provinces Images and binary data for ocean biogeographic provinces can be obtained here. For more information, contact Matt Oliver (moliver at udel.edu) or Andrew Irwin (airwin at mta.ca). Cite this data source as * AJ Irwin and MJ Oliver (2008) Biogeographic maps of the oceans. Version 1. <http://data.mmab.ca/> text/html 2007-06-15T14:13:53-03:00 http://mta.mmab.ca/doku.php?id=research&rev=1181927633&do=diff Current research projects Our current research projects focus on the interaction between marine phytoplankton and their environment. This includes work on: * Controls on the temporal and spatial variation of remote sensed chlorophyll * Macroevolutionary patterns in the size structure of phytoplankton communities in response to climate change * Eco-physiological characterization of taxonomically different phytoplankton groups in response to environmental change * Ecological thresholds… text/html 2008-12-23T01:11:32-03:00 http://mta.mmab.ca/doku.php?id=start&rev=1230009092&do=diff Welcome to the Marine Macroecology and Biogeochemistry Lab [Lab members hard at work] We are an interdisciplinary research group interested in large-scale ecological, evolutionary and biogeochemical phenomena in the oceans. Our primary goal is to understand and anticipate the effects of climate change on marine organisms, specifically phytoplankton using a combination of theoretical and data-driven models, remote-sensed, field and laboratory data, and the fossil record. text/html 2012-02-16T16:25:11-03:00 http://mta.mmab.ca/doku.php?id=thresholds&rev=1329423911&do=diff Ecological thresholds in the ocean The interaction between climate, biogeochemistry and the organisms that live in the ocean is a complex non-linear system. Complex non-linear systems are susceptible to unexpected and extreme behaviour. For example, there is a great deal of concern that continued global warming could increase the melting of the polar ice caps and shut down the formation of deep water in the Atlantic which could result in positive feedbacks and increased global warming.