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Our new webpage is up. Please visit for our current site.

I am now an assistant professor at Arnold Arboretum, appointed in the department of Organismic & Evolutionary Biology at Harvard University. On good days I am 'roving amongst the collections,' on better days this is not a euphemism for 'still getting lost a little.'

I am interested in how communities assemble and dis-assemble with global change. I draw on theory from temporal community ecology with perspectives from population and ecosystem ecology, evolutionary biology, and climatology. Though I tend to address fundamental questions with hypotheses informed by theory and models my research generally has strong applied angles. In particular much of my work to date has examined the causes and consequences of plant invasions.

I am getting back in the field more properly now! I have projects in California, working across the northeast from Massachusetts to Quebec and in the Gulf Islands. The photo here is by Tim Savas in the lab and of the canopy at Harvard Forest.


Our new webpage is up. Please visit for our current site.

The lab is helping start a Stan Users Group! First meeting in three weeks (more here). More about the Stan probabilistic programming language here.

Field seasons are wrapping up: leaves are dried and coming home from France this month (thanks to Beth and help from Thierry), seed collection continues at Harvard Forest, the White Mountains, the Second College Grant and Saint Hippolyte (go Dan, Jehane and Tim) and the the last measurement of Brix is underway in California (go Sadie).

As things wrap up look for the new lab webpage will to finally re-appear in the next month or two, after a little more of an overhaul. In the meanwhile, I have updated the People page. And check out the lab blog here, for more regular updates.

I talked about starting up a lab with Nature contributor Hannah Hoag recently. See the full piece here, including mention of the lab station wagon!

I am just back from Saturna (Gulf Islands, BC) where spring has sprung! About 3 weeks early based on my skimpy 3 years of data. Meanwhile in California the vines are 4 weeks early!

Also, cool new article on the USDA Clonal Germplasm garden in Winters; we're working to get Vitis research off the ground here. And, finally, my ideas paper with Ben Cook, Kendra McLauchlan and Jonathan Davies is out early online here.

The lab has had a busy summer! We've had great help from Sally Gee and Julia Paltseva (see here). I will get a proper blog started soon but until then, some summer photo updates here. Putnam fellow Ailene Ettinger and I wrote a commentary for a cool new paper by Panchen et al. in New Phytologist (commentary here).

My review paper with Elsa Cleland 'Phenological niches and the future of invaded ecosystems with climate change' is out at AoB Plants (and it's open access! Check it out here). Also, in a show of perseverance my started-in-graduate-school paper 'Linking the green and brown worlds: The prevalence and effect of multi-channel feeding in food webs' is accepted at Ecology and in pre-press here.

Science Careers piece (here) on tracking down data came out the other day. Classic me -- I go on about fairness (I do wish the world were more just).

I had a great visit to Dartmouth in early April. Many thanks to Lauren Culler and Ross Virginia for making it happen. The whole trip was great but I think getting to meet the author of this video may have been best.

I moved from Vancouver and the equally wonderful world of UBC in January for a new position at the Arnold Arboretum in snowy Boston at the end of January. Updates on new projects related to drivers of phenology in northeastern North American woody plant species and in winegrapes coming soon. I will be keeping up some of my work on the Gulf Islands, however (incredibly gifted graduate students with experience on the islands, please drop me a line).

I'll be at EGU this year (2014) in late April presenting an overview of my work with Ben Cook, entitled 'Historical phenological records and applications to global change ecology.' The phenology session is on Tuesday April 29th; I will also be at the PEP725 workshop and symposium the day before.

New review paper out with Ben Cook and Jonathan Davies here. This is an exciting paper since I mastered both maps and bubble plots in R to do it.






Just to review: Your options are to visit Data or Publications or Research which includes my work on Phenology, Detritus and other projects, Teaching, including an overview of my experience and my current undergrad’s blog on our bioinformatics work, my Resources page with my links to favorite LaTex, Sweave and R help sites, a Grants list and Writing, and the almighty leftover stuff at Other. You can download my CV here.