...and they're off!

Connie Tuck "SCALING UP TO FOOD WEBS: EFFECTS OF TEMPERATURE ON STRUCTURE AND FUNCTION ALONG A LATITUDINAL GRADIENT" and Veronik Campbell "DYNAMICS OF SPECIES EXTINCTION AND RECOVERY IN MULTI-TROPHIC AQUATIC SYSTEMS" successfully defended their M.Sc. theses! Both received stellar reviews and though we are all sad to see them leave we are looking forward to see where they go.

Visualizing and Understanding Interdependence in Nature

ASLO/NABS in Santa Fe

Getting a bunch of limnologists and aquatic ecologists together in the desert? Yes please! In the photo (left to right): Neo Martinez, Tamara Romanuk, Richard Vogt, Lars Rudolph, Connie Tuck, Veronik Campbell on a well deserved afternoon off overlooking Santa Fe. Thanks ASLO?NABS and in particular to Alan Covich who organized our great interactive session

"Network Approaches to Understanding Complex Aquatic Ecosystem Dynamics"

Connie giving her first 'international presentation'.

Talks and kudos at the 2010 Lett Conference

Congrats are definitely in order for M.Sc. student Veronik Campbell who captured the best talk prize at the master's level at the 2010 Lett Symposium, a conference organized by graduate biology students at Dalhousie for her talk "Dynamics of populations on the edge of extinction".She, along with Constance Tuck, will also be presenting at the 2010 CSEE conference in Laval.Connie's talk "Robustness of Ecological Communities to Environmental Warming" also received very high praise and will also be presented at CSEE this year.

Heida!

I don't know if we are more excited about eating Spätzle or learning to code the biodynamic model in C++ but either way we are very happy to be hosting Amrei Binzer, a visiting grad student from Uli Brose's lab in Germany this month. We are deep into species invasions simulations and thinking about lots of fun things like adding facilitation to the niche model. Thanks for loaning Amrei to us Uli!

Interested in learning more about our research?

Want to science-schmooze with us this summer?
We are heading out to a number of conferences....

5^th Annual CSEE meeting
May 9-12, 2010, Québec

Joint Meeting with ASLO & NABS
June 6-11, 2010, Santa Fe, New Mexico

Devious strategies and disturbance

How do ecological communities respond to increasing disturbance? A recent paper published by us in PlosOne suggests that as the severity of a disturbance increases, functional groups begin to respond differently.....although the importance of having high functional group diversity to maintaining stability is conserved across all levels of environmental stress.

Romanuk TN, Vogt RJ, Young A, Tuck C, Carscallen MW (2010) Maintenance of Positive Diversity-Stability Relations along a Gradient of Environmental Stress. PLoS ONE 5(4): e10378. doi:10.1371/journal.pone.0010378

Related papers:

Romanuk, T.N., R.J. Vogt, and J. Kolasa. 2009.
Ecological realism and mechanisms by which diversity begets stability.
Oikos 118:819-828.

Romanuk, T.N., B. Beisner, N.D. Martinez, and J. Kolasa. 2006.
Non-omnivorous generality promotes population stability.
Biology Letters 2:374-377.

Romanuk, T.N., R.J. Vogt, and J. Kolasa. 2006.
Eutrophication weakens the stabilizing effect of diversity on community and population variability.
Oikos 114:291-302.

Vogt, R., T.N. Romanuk, and J. Kolasa. 2006.
Species richness-variability relationships in multi-trophic aquatic microcosms.
Oikos 113:55-66.

Romanuk, T.N., and J. Kolasa. 2004.
Population variability is lower in diverse rock pools when the obscuring effects of local processes are removed.
Ecoscience 11:455-462.

Romanuk, T.N., and J. Kolasa. 2002.
Environmental variability alters the relationship between species richness and community variability in natural rock pool microcosms.
Ecoscience 9:55-62.

Rocking it out at BioBall 2010

Veronik, Marina, Catherine, Connie and I rocking it out at BioBall 2010....

New MSC student: Grace Lotz

She's been managing our lives (and our lab) for a while now and has been hanging around the lab even longer (I was Grace's departmental advisor for her honors thesis on the feeding ecology of grey whales back in 08/09) - this coming September she joins us as a MSc student. Welcome Grace!

baby salmon need trees!

Next time you are driving the "Sea to Sky" highway up to Whistler take a moment to think of the salmon fry and the foreshore development. Chum salmon fry NEED trees!

Romanuk, T.N. and C.D. Levings. 2010.
"Reciprocal Subsidies and Food Web Pathways Leading to Chum Salmon Fry in a Temperate Marine-Terrestrial Ecotone". PlosOne.

Also check out: Romanuk, T.N. and C.D. Levings. 2006. Relationships between fish and supralittoral vegetation in nearshore marine habitats. Aquatic Conservation: Marine and Freshwater Ecosystems 16:115-132.

Romanuk, T.N., and C.D. Levings. 2005. Stable isotope analysis of trophic position and terrestrial vs marine carbon sources for juvenile Pacific salmonids in nearshore marine habitats. Fisheries Management and Ecology 12:113-121.

Romanuk, T.N., and C.D. Levings. 2003. Associations between arthropods and supralittoral vegetation: dependence of terrestrial and aquatic taxa on vegetation. Environmental Entomology 32:1343-1353.

Joined the PlosOne editorial team as an academic editor!

I am a big fan of open access publishing and in particular, the Plos journals. To support the trend I have just joined the PlosOne team as an Academic Editor!

Japan!

Just got back from a conference in Sendai, Japan: "Ecosystem Management Applying to Ecosystem Adaptability Science: Robustness and stability of organisims and ecosystems". This conference was just incredible - 25 speakers, 5 days, great science, and good friends! Here is a shot of Kevin McCann and I taking a nature walk on one of our afternoons off. I would like to thank Hiroko and all the conference organizers for inviting me. One of the best conferences I can remember! (The other dude is Macaca fuscata - a trip to Japan is nothing without a side-trip to see the snow monkeys!

Honors students at the Cameron Conference

Kristen Vandenburg, Karla Armsworthy, Jennifer Malcolm, Vanessa Brisson, and Cashelle Farley presenting their research at the annual Cameron Conference for honors students.

Mediterranean Is Scary Laboratory of Ocean Futures

Press In Wired Science


“It’s difficult to know exactly what’s going to happen elsewhere, but the principles can be extrapolated,” said Marta Call, a Dalhousie University marine biologist who has modeled the interactions of Mediterranean species. In a paper published last year in Ecosystems, she and her colleagues described Mediterranean food webs as “in an advanced state of degradation.”

Read More http://www.wired.com/wiredscience/2009/12/mediterranean-degradation/#ixzz0cLBT4twl

“Structural Degradation in Mediterranean Sea Food Webs: Testing Ecological Hypotheses Using Stochastic and Mass-Balance Modelling.” By Marta Coll, Heike K. Lotze, and Tamara N. Romanuk. Ecosystems, Vol. 11 No. 6, Sept. 2008.

Mather Carscallen Joins the FWL

Mather Carscallen has been working with us for nearly three years now and this January formally joins us as an M.Sc student. He is working on polar food webs and the potential consequences of climate change on food web structure in the Arctic and Antarctic. Welcome Mather!