JCB Nunez

Welcome to my personal website. I am a research fellow and Ph.D. candidate at Brown University’s department of Ecology and Evolutionary Biology (EEB).

My research studies patterns of genetic variation in natural populations of the circumboreal barnacle Semibalanus balanoides. I seek to characterize what loci are under selection at different scales of environmental heterogeneity in intertidal habitats, i.e. upper/lower intertidal, estuaries, etc. My primary goal is to determine the identity of these ecologically important loci (i.e. whether selection is more pervasive in regulatory regions vs. protein coding regions), as well as the mechanisms that underlie their maintenance of genetic variation. As an inhabitant of a boundary ecosystem between areal and marine habitats, genomic studies on S. balanoides provide an invaluable opportunity to gain novel insights into micro-evolutionary responses to climate change. I am currently conducting my research under the mentorship of Dr. David M. Rand at Brown University. I am also currently engaged in collaborative research with members of the The Linnaeus Centre for Marine Evolutionary Biology: Kerstin Johannesson, Anders Blomberg, and Magnus Rosenblad, working in different aspects of barnacle genomics and ecology. Part of this work is done at Tjärnö Lovéncentret in Sweden. I have also conducted studies, addressing similar questions, on the marine teleost Fundulus heteroclitus. I conducted my previous work at the University of Miami with Dr. Margie F. Oleksiak and Dr. Doug L. Crawford.


MOST RECENT PUBLICATION(S)

Population Genomics and Biogeography of the Northern Acorn Barnacle (Semibalanus balanoides) Using Pooled Sequencing Approaches.
Nunez J.C.B., Elyanow R.G., Ferranti D.A., Rand D.M. (2018) —  In Population Genomics: Marine Organisms. M. F. Oleksiak and O. P. Rajora, Springer, Cham. DOI:https://doi.org/10.1007/13836_2018_58

Complete list in Google Scholar


CURRENT PROJECT: EVOLUTION  IN THE INTERTIDAL

My research studies patterns of genetic variation in natural populations of the circumboreal barnacle Semibalanus balanoides. I seek to characterize what loci are under selection at different scales of environmental heterogeneity in intertidal habitats, i.e. upper/lower intertidal, estuaries, etc. My primary goal is to determine the identity of these ecologically important loci (i.e.whether selection is more pervasive in regulatory regions vs.protein coding regions), as well as the mechanisms that underlie their maintenance of genetic variation. As an inhabitant of a boundary ecosystem between areal and marine habitats, genomic studies on S. balanoidesprovide an invaluable opportunity to gain novel insights into micro-evolutionary responses to climate change.


CONTACT

Dept. of Ecology and Evolutionary Biology

BrownPNGJoaquin Nunez
Brown University
Box G, 80 Waterman St.
Providence, RI, 02912
Email: Joaquin_Nunez@Brown.edu
Phone: 786 – 514 – 0636


RESEARCH IDENTIFIERS 

SOCIAL MEDIA