User profiles for A. J. Irwin

Andrew J. Irwin

Mathematics & Statistics, Dalhousie University, Canada
Verified email at dal.ca
Cited by 5592

The evolutionary inheritance of elemental stoichiometry in marine phytoplankton

A Quigg, ZV Finkel, AJ Irwin, Y Rosenthal, TY Ho… - Nature, 2003 - nature.com
Phytoplankton is a nineteenth century ecological construct for a biologically diverse group
of pelagic photoautotrophs that share common metabolic functions but not evolutionary …

Scaling-up from nutrient physiology to the size-structure of phytoplankton communities

AJ Irwin, ZV Finkel, OME Schofield… - Journal of plankton …, 2006 - academic.oup.com
In many community assemblages, the abundance of organisms is a power-law function of
organism size. In phytoplankton communities, changes in size structure associated with …

Anthropogenic climate change drives shift and shuffle in North Atlantic phytoplankton communities

AD Barton, AJ Irwin, ZV Finkel… - Proceedings of the …, 2016 - National Acad Sciences
Anthropogenic climate change has shifted the biogeography and phenology of many
terrestrial and marine species. Marine phytoplankton communities appear sensitive to climate …

Nitrogen‐fixation strategies and Fe requirements in cyanobacteria

…, A Quigg, ZV Finkel, AJ Irwin… - Limnology and …, 2007 - Wiley Online Library
Diazotrophic (nitrogen‐fixing) cyanobacteria are important contributors of new nitrogen to
oligotrophic environments and greatly influence oceanic productivity. We investigated how iron …

Warming and eutrophication combine to restructure diatoms and dinoflagellates

W Xiao, X Liu, AJ Irwin, EA Laws, L Wang, B Chen… - Water research, 2018 - Elsevier
Temperature change and eutrophication are known to affect phytoplankton communities, but
relatively little is known about the effects of interactions between simultaneous changes of …

Resource limitation alters the 3/4 size scaling of metabolic rates in phytoplankton

ZV Finkel, AJ Irwin, O Schofield - Marine Ecology Progress Series, 2004 - int-res.com
Under optimal growth conditions, many metabolic rates scale to the 3/4 power of mass. We
show that resource limitation can alter this size scaling of metabolic rates if resource …

Are ocean deserts getting larger?

AJ Irwin, MJ Oliver - Geophysical Research Letters, 2009 - Wiley Online Library
The spatial and temporal dynamics of ocean biomes and their provincial subdivisions are
affected by the dynamics of Earth's climate system, but the effect of climate change on the …

[HTML][HTML] Phylogenetic diversity in the macromolecular composition of microalgae

…, MJ Follows, JD Liefer, CM Brown, I Benner, AJ Irwin - PLoS …, 2016 - journals.plos.org
The elemental stoichiometry of microalgae reflects their underlying macromolecular composition
and influences competitive interactions among species and their role in the food web …

Overlapping generations can promote altruistic behavior

PD Taylor, AJ Irwin - Evolution, 2000 - academic.oup.com
… Our initial results (PD Taylor and AJ Irwin, unpubl. data) show that in this case, our result 2,
that increased survival promotes altruism, will continue to hold in case the benefits of altruism …

Ocean acidification enhances the growth rate of larger diatoms

Y Wu, DA Campbell, AJ Irwin… - Limnology and …, 2014 - Wiley Online Library
Ocean acidification is changing the nature of inorganic carbon availability in the global oceans.
Diatoms account for µ 40% of all marine primary productivity and are major contributors …