EARLY HEARING DETECTION AND INTERVENTION VIRTUAL CONFERENCE
MARCH 2-5, 2021

(Virtually the same conference, without elevators, airplane tickets, or hotel room keys)

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5/24/2021  |   2:00 PM - 3:30 PM   |  UNDERSTANDING THE IMPACTS OF CHANGES IN RAINFALL ON STREAM ECOSYSTEMS: LESSONS LEARNED FROM A NATURAL RAINFALL GRADIENT IN COASTAL TEXAS   |  Virtual Platform

UNDERSTANDING THE IMPACTS OF CHANGES IN RAINFALL ON STREAM ECOSYSTEMS: LESSONS LEARNED FROM A NATURAL RAINFALL GRADIENT IN COASTAL TEXAS

Changes in rainfall patterns worldwide are one of the predicted effects of global climate change, causing entire regions to become wetter or drier over the next century. The tight linkages between rainfall and hydrology make streams extremely vulnerable to these types of changes, however, forecasting the impacts of changes in rainfall on streams is extremely challenging. Precipitation is not conducive to lab experiments, and observational studies along rainfall gradients typically have variables like temperature, elevation, and underlying geology covarying with rainfall. However, the Texas Coastal Plain is a natural precipitation gradient without natural covarying variables. Here, we present information from six years of monitoring and experiments in this region assessing the effect of rainfall on stream ecosystem structure and function and describe the next phase in this work, an assessment of drivers of primary and secondary production along the rainfall gradient. Whereas variables like hydrologic variability and algal abundance changed gradually, others such as ER/GPP showed little change, and the composition and stability of fish and invertebrate communities changed rapidly in the middle of the gradient.

  • Ecotones
  • Dry rivers
  • Climate change

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Presenters/Authors

Chris Patrick (), Virginia Institute of Marine Science, cpatrick@vims.edu;


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James Hogan (), Texas A&M University – Corpus Christi, james.hogan@tamucc.edu;


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Matt Whiles (), University of Florida, mwhiles@ufl.edu;


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Hannah Vander Zanden (), UF, hvz@ufl.edu;


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Amber Ulseth (), Sam Houston State University, amber.ulseth@epfl.ch;


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Bradley Strickland (), Virginia Institute of Marine Science, bastrickland273@gmail.com;


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Connor Brown (), Sam Houston State University, clb150@SHSU.EDU;


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Fernando Carvallo (), Texas A&M University–Corpus Christi, fcarvallo@islander.tamucc.edu ;


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Christopher Frazier (), Texas A&M Corpus Christi, christopher.frazier@tamucc.edu;


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Christopher Groff (), Texas A&M Corpus Christi, cgroff@islander.tamucc.edu;


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Sean Kinard (), Virginia Institute of Marine Science, s2kinard@gmail.com;


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Alexander Solis (), VIMS, alexander.tr.solis@gmail.com;


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