• Home
  • Research
  • People
  • Publications
  • Teaching
  • News
Davidson Lab

Ethan's research featured at the CSUS Undergraduate Research Reception

10/13/2017

 
Picture
Click here for more photos. 
Oct 5, 2017.  The College of Natural Sciences and Mathematics hosted another successful Undergraduate Research Reception at Sacramento State last week. Over 50 Undergraduate researchers from Astronomy to Biology presented their research posters including lab member, Ethan Roberts.  During the summer 2017, Ethan worked with Dr. Davidson through the SURE program to conduct novel marine ecology research. 
Ethan investigated how burrow shelters made by an invasive isopod, Sphaeroma quoianum, creates a buffered microclimate for other intertidal organisms.  Burrows produced a more humid microclimate, which reduced desiccation stress experienced by intertidal crustaceans.  This research will help us better understand how habitat-modifying species can affect patterns of abundance and diversity of other marine organisms.

Wrapping up summer research

8/31/2017

 
Picture
It has been a busy summer for the Davidson lab.  My students, collaborators, and I have surveyed several estuaries on the Pacific coast (Coos Bay, Oregon, San Francisco Bay, and Panama canal zone, Panama) for wood boring invertebrates and are still working through the dozens of samples we obtained. Our preliminary data indicates that we may have even found a new invasive wood-borer in Coos Bay, Oregon, although we are still confirming those results.  

A summer research student, Ethan Roberts, finished up an interesting study investigating how the burrows created by invasive boring isopods, Sphaeroma quoianum (image above), may provide a more buffered microhabitat for other species such as other isopods, amphipods, and snails.  Through field and lab experiments, he found that burrow microhabitats are more humid and provide more desiccation resistance compared to exposed areas.  These results suggest that these microhabitats may help marine animals better cope with desiccation stresses of living in the intertidal.  During his studies, he also discovered dozens of individuals of New Zealand Mud Snails near Benicia in San Francisco Bay.  It is unusual to find freshwater snails in such salty waters (10 ppt). 

Finally, I have established pilot experiments for a new study seeking to understand how ecosystem engineering by wood-borers may influence community composition and diversity in San Francisco Bay.  I hope this experiment will help provide key data in support of a grant proposal. 

Esteemed marine ecologist, Tom Suchanek to present at Sacramento Darwin day on Sunday Feb 12 at 2pm

1/31/2017

 
Day/time: Sunday, February 12; doors open at 2pm, event at 2:30 pm 
Location: John Smith Hall, La Sierra Community Center, 5325 Engle Road, Carmichael
Presenter: Thomas H. Suchanek

Dr. Suchanek has over 100 peer-reviewed publications and professional reports and his research addresses critical questions in marine ecology, the impacts of environmental contaminants (such as mercury) in the aquatic environment, and the impacts of climate change.

His talk is titled:   The Reality Of Climate Change: A Path Forward​

http://sacdarwinday.org/
Cost: $5 for students, $10 in advance, $15 at the door. 

Summer internship opportunities through COAST - applications due Mar 6, 2017

1/19/2017

 
Multiple internships in California through COAST for summer 2017. Applications due March 6, 2017.
​
www2.calstate.edu/impact-of-the-csu/research/coast/funding/Pages/Summer-2017-Announcement-and-Application.aspx
Forward>>

    Archives

    July 2020
    March 2020
    November 2019
    September 2019
    August 2019
    March 2019
    March 2018
    November 2017
    October 2017
    August 2017
    January 2017

    Categories

    All

Proudly powered by Weebly
  • Home
  • Research
  • People
  • Publications
  • Teaching
  • News