The Witman Lab @ Brown
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    • Predator diversity and the strength of trophic cascades (GMR)
    • Effects of biodiversity on temporal stability and resilience of subtidal marine communities: a global evaluation
    • Responses to El Niño events in Galapagos subtidal ecosystems
    • Decadal scale losses of foundation species and ecological consequences (GOM)
    • Conservation protection for Cashes Ledge (GOM)
  • Published Research
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  • Lab Members
    • Jon Witman
    • Robert Lamb
    • Franz Smith
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    • Noah Medina
    • Leif Dykstra Deschenne
    • Lucinda Anderson
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Undergraduates Maya Zeff and Marisa Agarwal receive multiple research grants!

5/1/2019

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Maya Greenhill
Maya Zeff ('20)
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Marisa Agarwal ('21)
Marisa has received an Undergraduate Teaching and Research Award for her study, "Behavioral ecology of top predators in the Galapagos Marine Reserve." Maya has received a Voss Undergraduate Research Fellowship in Environmental Science and Communication, as well as an Explorers Club student grant for her study, "Niche complementarity and ecological function of damselfish in the Galapagos Marine Protected Area."

Both Maya and Marisa are also the recipients of Marine Conservation Scholarships from the Women Divers Hall of Fame. Congratulations!
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New publication by Fiona Beltram of the Witman Lab on proliferation of cyanobacteria in Galapagos rocky reefs

4/27/2019

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Photo showing the high cover of mat forming cyanobacteria (brown areas) during the 2014–16 El Niño. Photo: J. Witman
Fiona Beltram, a recent graduate of the Witman Lab, recently published her honors thesis. Her work describes how the unusually warm temperatures of the 2014–2017 El Niño facilitated the novel appearance of cyanobacterial mats in the Galapagos rocky subtidal zone, which can have negative effects on the marine benthic community. Read the whole thing here!
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Dissertation defense, Benthic Ecology Meeting, senior thesis talks & more!

4/26/2019

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Witman Lab representing our new logo at the Benthic Ecology Meeting in St. John's, Canada
It's been a whirlwind of presentations, awards, travel, and thesis defenses in the past few months, and we have a lot to celebrate. 
Dr. Robbie Lamb!
Robbie successfully defended his Ph.D. April 1st, and is headed to a post doctoral fellowship at Woods Hole Oceanographic Institution next year.  

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Alejandro Pérez-Matus gives guest lecture
Our collaborator Dr. Alejandro Pérez-Matus, from the Pontificia Universidad Católica de Chile, was the graduate student invited seminar speaker. His talk to the EEB department on kelp forest ecology and fisheries was fantastic and we were lucky to have him here.
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Benthic Ecology Meeting 2019
Seniors Hallie Fischman and Calvin Munson gave talks at the BEM, with Hallie winning an honorable mention for best student poster talk. Junior Maya Greenhill, Dr. Robbie Lamb, Dr. Jon Witman, and collaborator Alejandro Pérez-Matus all gave wonderful talks. We made new friends and connections studying everything from marshes to polar ecology. Even though St. John's was freezing, we still had a great time! 
Maya Greenhill
Thesis Talks
Seniors Hallie Fischman and Calvin Munson, and junior Maya Greenhill gave thesis talks at the Ecology and Evolutionary Biology Department Seminar –"Optimizing coastal dune restoration with the stress gradient hypothesis," "Coupled effects of herbivory and upwelling on Galapagos benthic communities," and "Niche complementarity and ecological function of damselfish in the Galapagos marine reserve." 
Maya Greenhill
Maya Greenhill ('19)
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Big congrats to the whole lab – now onto gearing up for field season!
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NY Times front page: "As seas warm, Galapagos Islands face a giant evolutionary test" featuring Witman Lab researchers!

12/19/2018

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New York Times writer Nicholas Casey interviews Robert Lamb en route to dive at Rocas Beagle, at the moment Robbie's article on El Niño - driven fish disease in the Galapagos was published
Check out the feature article on the front page of the New York Times! Written by Nicholas Casey and with stunning images and video from land, air and sea by Pulitzer prize-winning photojournalist Josh Haner, this is a multi-media multi-story project that highlights our work on corals and fish as part of the suite of organisms affected by El Niño. Also featured are our friends at the Charles Darwin Station and Galapagos National Park including Dr. Heinke Jager. It paints a compelling picture of sweeping environmental effects of climate change being felt in the Galapagos Islands.
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New blog post on the Witman Lab's research with Galapagos Conservancy

10/22/2018

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Featured in the recent GC blog post, members of the Witman Lab survey the reef at Pinzon Island as a school of endemic striped salema (Xenocys jessiae) swim overhead. Photo credit: Alejandro Perez-Matus.
Research efforts by the Witman Lab to characterize the response of Galapagos marine ecosystems to climate change and El Niño are currently funded by the Galapagos Conservancy. This is the only US non-profit dedicated to conserving the wildlife of the Galapagos Islands. Read a recent blog post about our work with GC over the past year!
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Witman Lab featured on the cover of 41 North

9/5/2018

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Jon Witman was featured on the cover of 41 North, Rhode Island's coastal and ocean magazine this month. You can read the entire issue here, or download the story on the Witman Lab here.
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The Witman Lab gives a research update seminar in Galapagos

8/29/2018

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Undergraduates Calvin Munson ('19) and Maya Zeff ('20) gave their first talks on their thesis research projects at the Charles Darwin Foundation. These talks presented preliminary research from the past two months of field work examining local to regional controls on sea floor productivity. At the regional scale, Calvin's work examines how the abundance of algae and invertebrates changes along gradients of upwelling in the Galápagos subtidal, in addition to how the diversity of herbivorous fishes affects ecosystem functioning in the form of resource utilization.  At local scales, Maya's research is on damselfish territories as a major source of algal productivity on the rocky reef, focusing on species-specific differences in agal composition, depth zonation, and defense capacity that indicate complementarity in providing this important ecosystem function. Professor Jon Witman put these studies into context, summarizing and updating on how repeated El Niño/ La Niña cycles are shaping marine communities of benthic invertebrates and reef fish over 20 years of long term monitoring. 
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New publication co-authored by Robert Lamb of the Witman Lab on fish communities from tropical oceanic islands

8/22/2018

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Surgeonfish and parrotfish school over the rocky reefs of Galapagos. The archipelago stood out among all others for its uniquely high biomass of herbivores and planktivores, evidence of its pristine state and productive waters. Photo: Maximillian Hirschfeld
Robbie recently co-authored a paper on the biogeographic, energetic, and anthropogenic determinants of fish communities on tropical oceanic islands, believed to be some of the most pristine marine ecosystems left in the world. Below is the press release from Ecography.
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Happy International Oceans Day!

6/7/2018

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CBS documentary featuring the Witman Lab set to air Sunday evening!

5/18/2018

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A documentary called "Adapt or Die", about climate change impacts in the Galapagos Marine Reserve will be shown this Sunday, May 20, at 8pm - on CBS.

The documentary resulted from a CBS TV crew coming on our January research cruise, which they filmed along with several other researchers working in the region. 

It's CBS' streaming service (think netflix) so
 Sunday at 8 will be the full show, and after that the doc itself will be available online and in streaming (on any smart TV.)

Disclaimer: we haven't seen it yet either!!
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