reach-in environmental chambers arrive
Our 5 reach-in environmental chambers arrived today!
lab was at the GRC Predator-Prey conference in Ventura (CA)
Our lab just returned from a fantastic GRC conference in Ventura (CA) on Predator-Prey Interactions: New Frontiers in understanding Predator-Prey Interactions in a Human-Altered World. Some very thought-provoking seminars and discussions.
new paper on measuring thermal sensitivity
Check out our new paper in The American Naturalist on Real versus Artificial Variation in the Thermal Sensitivity of Biological Traits. Our key result is that because thermal sensitivity is not always strictly exponential, significant biases in its estimation can arise from an inappropriate choice of experimental temperatures. That is, choosing experimental temperature ranges at the cold end of an organism’s tolerance range tends to yield high estimates of sensitivity, and choosing ranges at the warm end yields low estimates. We provide a number of guidelines for accurately measuring thermal sensitivity and for correctly using thermal sensitivity data to model effects of climate change on species and ecosystems.
You can find a pdf of this paper on our PUBLICATIONS page.
two summer internships available
CLOSES 9 January 2016.
We currently have two paid undergraduate internships available in the lab for summer 2016. We have one in computer vision (Integrating 3D video and computer vision methods for application in ecology) and one in community ecology (Thermal effects on movement, behavior and species interactions). See the links above for details about how to apply and who to contact with questions.
testing new lab equipment...
The team trailing some new lab equipment - IR lights that just arrived from smartvisionlights. We got some video (and tracks!) from a number of species, including spiders and tadpoles.
lab visit to Danforth Plant Science Center
Our lab visited Dr Christopher Topp's group at the Donald Danforth Plant Science Center. Chris and his team are doing some awesome work using computer vision to characterize the biological drivers of plant root architecture.
lab construction progressing fast...
Work on the lab is progressing fast - climate chambers to be installed over the next couple of weeks.
checking out our new climate chambers
Recent trip to the Darwin Chambers Company to check up on construction of our awesome new climate chambers. Should be ready by 2016.
some local amphibs and friends...
Short field trip today to introduce our new postdoc (Dave Daversa) to some local fauna. Our focus was on marbled salamanders, but you can see we came across quite a diversity of species. Also on hand was Tewodros Biresaw (a postdoc in the lab) and John Crawford (vertebrate ecologist at NGRREC and Dave's co-advisor).
warm welcome to our newest postdoc - Dr. Dave Daversa
A welcome to our newest postdoc Dr. Dave Daversa, who comes to us from the University of Cambridge where he recently competed his PhD on movement and parasite dynamics in amphibians. Dave is co-advised by Dr. John Crawford, and while at NGRREC will be working to understand drivers of movement and behavior in amphibians, especially in relation to dispersal.
new book chapter - From Individual Metabolism and Biomechanics to Interactions
We just had a new book chapter come out, in Aquatic Functional Biodiversity: An Ecological and Evolutionary Perspective.
In our paper - From Individual Metabolism and Biomechanics to Interactions - we provide a summary of recent theoretical and empirical advances for developing a mechanistic understanding of trophic interactions, and identify key methods and challenges for understanding and predicting the eco- evolutionary dynamics of aquatic ecosystems.
Our approach is based on the metabolic and biomechanical bases of trophic interactions, but is applicable to other types of ecological interactions that involve metabolism and biomechanics (e.g., pollination, parasitism, and competitive interactions).
A pdf of our chapter is available on the lab Publications page.
latest plans for our new climate chambers...
We just received the latest plans for our new environmental chambers. The walk-in chamber (shown to the right) will be used for automated tracking, and will be complemented by 5 reach-in chambers for housing animals prior to testing. We hope the chambers will be online by the end of the year.
new toy - a FLIR thermal camera!
We trialed some new lab equipment today - a FLIR thermal camera. We plan to use these cameras to more throughly investigate the thermal dependence of movement, behavior and species interactions, with the hope to eventually integrate the images with automated tracking software. Exciting times to be doing ecology!
welcome to our newest postdoc - Dr. Tewodros Biresaw
A belated welcome to our newest postdoc - Dr. Tewodros Biresaw. Tewodros brings to the lab his interests and expertise in computer vision, and especially automated tracking and behavioral analysis.
GRC conference on "Catchment Science"
Just back from a fantastic few days at the GRC conference on Catchment Science: Interactions of Hydrology, Biology and Geochemistry. This was all mostly new stuff considering the work we do in the lab, but it certainly represents a direction we'd like to take over the coming years. Hopefully this conference will become a regular feature on our lab calendar. More from the conference website:
Observing, predicting, and understanding the consequences and feedbacks of environmental thresholds are crucial for predicting future changes in catchment systems across interacting hydrological, biological and geochemical processes. This GRC will focus on new research, including thresholds, early warning indicators, and resilience using long-term data, experimental studies, theory, and modeling approaches to study the behavior of catchments systems under changing conditions such as climate variability or land use/cover changes.
our summer interns hard at work!
David (Tilson) and Laura (Cappel) are using camera traps to understand the energetics of vertebrate communities at the Boone Field Station, located about an hours drive from NGRREC. Also on hand was Carl Cloyed (a postdoc in the lab) and John Crawford (vertebrate ecologist at NGRREC).
new paper on the behavioral effects of warming
New paper of ours just out in Functional Ecology. This is some of our first published work that uses automated tracking, where we tease out how temperature and body size affect how often individuals cross a dispersal corridor. How temperature and size affect movement should be important in a world increasingly impacted by climate change and habitat fragmentation.
You can find a pdf of this paper on our PUBLICATIONS page.
tony back from the Moorea IDEA workshop
Tony just back from another Moorea IDEA consortium workshop, this time in Moorea!
new paper on how body size impacts insect behavior
A new paper of ours just came out - Body size and the behavioral ecology of insects: linking individuals to ecological communities - where we explore how size impacts the behavioral ecology of insects. You can read this paper on our PUBLICATIONS page.
two new papers out from DellEcologyLab
A couple of papers of ours just came out in a special issue of Advances in Ecological Research that Tony co-edited (see below). The first paper is the introductory chapter to the special issue (Scaling up trait variation from individuals to ecosystems) and the second describes work I undertook during my PhD on the ecology of intermittent pool beds (Population and community size structure across a complex environmental gradient).
View this paper on our PUBLICATIONS page.