Professor Searle is Chair of the Department of Ecology and Evolutionary Biology at Cornell University, and is interested in the construction of post-glacial small mammal communities and has studied the natural colonization history of European shrews, voles, mice and small carnivores, revealing a wide range of species- and lineage-specific responses in terms of source areas and pattern of spread. Unnatural colonization history (i.e. transport by humans) is also of interest to him, particularly the way that the phylogeography of small mammals transported by humans can inform about the history of the humans moving them.

Those separate lineages that make up a species and which are formed in different places and colonize in different ways, are genetically differentiated to various degrees and may become separate species themselves. He is interested in the speciation process and the analysis of hybrid zones to inform about that. He has, in particular, studied the origin of chromosomally distinctive lineages, and the hybrid zones between those lineages, using shrews and mice as models.

A more complete and current listing of Prof. Searle's work and scholarly output can be found on his EEB Department web page and the Searle Lab web site, or through the links below.

ResearchGate Profile Page


Recent Submissions

  • Synchronous diversification of Sulawesi’s iconic artiodactyls driven by recent geological events 

    Frantz, Laurent A. F.; Rudzinski, Anna; Nugraha, Abang Mansyursyah Surya; Evin, Allowen; Burton, James; Hulme-Beaman, Ardern; Linderholm, Anna; Barnett, Ross; Vega, Rodrigo; Irving-Pease, Evan K.; Haile, James; Allen, Richard; Leus, Kristin; Shephard, Jill; Hillyer, Mia; Gillemot, Sarah; van den Hurk, Jeroen; Ogle, Sharron; Atofanei, Cristina; Thomas, Mark G.; Johansson, Friederike; Mustari, Abdul Haris; Williams, John; Mohamad, Kusdiantoro; Damayanti, Chandramaya Siska; Wiryadi, Ita Djuwita; Obbles, Dagmar; Mona, Stephano; Day, Hally; Yasin, Muhammad; Meker, Stefan; McGuire, Jimmy A.; Evans, Ben J.; von Rintelen, Thomas; Ho, Simon Y. W.; Searle, J. B.; Kitchener, Andrew C.; Macdonald, Alastair A.; Shaw, Darren J.; Hall, Robert; Galbusera, Peter; Larson, Greger (The Royal Society, 2018-04-11)
    The high degree of endemism on Sulawesi has previously been suggested to have vicariant origins, dating back to 40 Ma. Recent studies, however, suggest that much of Sulawesi's fauna assembled over the last 15 Myr. Here, ...
  • The hypothetical Old-Northern chromosome race of Sorex araneus found in the Ural Mts 

    Polyakov, A.V.; Borodin, P.M.; Luká?ová, L.; Searle, J.B.; Zima, J. (Finnish Zoological and Botanical Publishing Board, 1997)
    Chromosomes of two populations of the common shrew, Sorex araneus L. (Mammalia, Insectivora, Soricidae), from the northern Ural Mts. were investigated. In both sites, homozygous, all-metacentric autosomal complements were ...
  • The Changing pace of Insular Life: 5000 Years of Microevolution in the Orkney Vole (microtus Arvalis Orcadensis) 

    Cucchi, T.; Barnett, R.; Martínková, N.; Renaud, S.; Renvoisé, E.; Evin, A.; Sheridan, A.; Mainland, I.; Wickham?Jones, C.; Tougard, C.; Quéré, J.P.; Pascal, M.; Pascal, M.; Heckel, G.; O'Higgins, P.; Searle, J.B.; Dobney, K.M. (Society for the Study of Evolution, 2014-06-23)
    Island evolution may be expected to involve fast initial morphological divergence followed by stasis. We tested this model using the dental phenotype of modern and ancient common voles (Microtus arvalis), introduced onto ...
  • R2d2 Drives Selfish Sweeps in the House Mouse 

    Didion, John P.; Morgan, Andrew P.; Yadgary, Liran; Bell, Timothy A.; McMullan, Rachel C.; Ortiz de Solorzano, Lydia; Britton-Davidian, Janice; Bult, Carol J.; Campbell, Karl J.; Castiglia, Riccardo; Ching, Yung-Hao; Chunco, Amanda J.; Crowley, James J.; Chesler, Elissa J.; Förster, Daniel W.; French, John E.; Gabriel, Sofia I.; Gatti, Daniel M.; Garland, Theodore; Giagia-Athanasopoulou, Eva B.; Giménez, Mabel D.; Grize, Sofia A.; Gündüz, ?slam; Holmes, Andrew; Hauffe, Heidi C.; Herman, Jeremy S.; Holt, James M.; Hua, Kunjie; Jolley, Wesley J.; Lindholm, Anna K.; López-Fuster, María J.; Mitsainas, George; da Luz Mathias, Maria; McMillan, Leonard; da Graça Morgado Ramalhinho, Maria; Rehermann, Barbara; Rosshart, Stephan P.; Searle, J. B.; Shiao, Meng-Shin; Solano, Emanuela; Svenson, Karen L.; Thomas-Laemont, Patricia; Threadgill, David W.; Ventura, Jacint; Weinstock, George M.; Pomp, Daniel; Churchill, Gary A.; Pardo-Manuel de Villena, Fernando (Oxford University Press on behalf of the Society for Molecular Biology and Evolution, 2016-02-15)
    A selective sweep is the result of strong positive selection driving newly occurring or standing genetic variants to fixation, and can dramatically alter the pattern and distribution of allelic diversity in a population. ...
  • Playing Hide-and-Seek in Beta-Globin Genes: Gene Conversion Transferring a Beneficial Mutation between Differentially Expressed Gene Duplicates 

    Strážnická, Michaela; Marková, Silvia; Searle, J. B.; Kotlík, Petr (Multidisciplinary Digital Publishing Institute (MDPI), 2018-10-12)
    Increasing evidence suggests that adaptation to diverse environments often involves selection on existing variation rather than new mutations. A previous study identified a nonsynonymous single nucleotide polymorphism (SNP) ...

View more


RSS Feeds