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J. Hamrick · SciRah

Researcher profile · Semantic Scholar

J. Hamrick

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J. Hamrick — researcher profile on SciRah

h-index: 68
Works: 238
Citations: 18K

Most-cited papers

Response of forest trees to global environmental changes
J. Hamrick
2004600 citations
Semantic Scholar
Unexpectedly High Clonal Diversity of Two Salt Marsh Perennials Across a Severe Environmental Gradient
C. Richards, J. Hamrick, L. A. Donovan, Rodney Mauricio
2004155 citations
Semantic Scholar
Genetic diversity in harvested and protected populations of wild American ginseng, Panax quinquefolius L. (Araliaceae).
J. Cruse-Sanders, J. Hamrick
2004American-Eurasian journal of botany124 citations
Semantic Scholar
Outcrossing rate and inbreeding depression in the herbaceous autotetraploid, Campanula americana
Laura F. Galloway, Julie R. Etterson, J. Hamrick
2003Heredity104 citations Open access
Semantic Scholar
A ROLE FOR NONADAPTIVE PROCESSES IN PLANT GENOME SIZE EVOLUTION?
K. Whitney, E. Baack, J. Hamrick, M. Godt +7 more
2010Evolution; international journal of organic evolution101 citations Open access
Semantic Scholar
Using population genetic analyses to understand seed dispersal patterns
J. Hamrick, Dorset W. Trapnell
201188 citations
Semantic Scholar
Three‐dimensional fine‐scale genetic structure of the neotropical epiphytic orchid, Laelia rubescens
Dorset W. Trapnell, J. Hamrick, J. Nason
2004Molecular Ecology80 citations
Semantic Scholar
Partitioning nuclear and chloroplast variation at multiple spatial scales in the neotropical epiphytic orchid, Laelia rubescens
Dorset W. Trapnell, J. Hamrick
2004Molecular Ecology80 citations
Semantic Scholar
Genetic variation and evolution of Polaskia chichipe (Cactaceae) under domestication in the Tehuacán Valley, central Mexico
Adriana Otero-Arnaiz, A. Casas, J. Hamrick, J. Cruse-Sanders
2005Molecular Ecology75 citations
Semantic Scholar
Observations on the genetic structure and mating system of ponderosa pine in the Colorado front range
J. B. Mitton, Y. Linhart, J. Hamrick, J. S. Beckman
2004Theoretical and Applied Genetics75 citations
Semantic Scholar
Inferring colonization history from analyses of spatial genetic structure within populations of Pinus strobus and Quercus rubra
F. A. Jones, J. Hamrick, C. Peterson, E. R. Squiers
2006Molecular Ecology69 citations
Semantic Scholar
Genetic variation of introduced Hawaiian and native Costa Rican populations of an invasive tropical shrub, Clidemia hirta (Melastomataceae).
S. DeWalt, J. Hamrick
2004American-Eurasian journal of botany69 citations
Semantic Scholar
Identification of glacial refugia in south‐eastern North America by phylogeographical analyses of a forest understorey plant, Trillium cuneatum
E. Gonzales, J. Hamrick, Shu-Mei Chang
200862 citations
Semantic Scholar
A multiyear estimate of the effective pollen donor pool for Albizia julibrissin
A. Irwin, J. Hamrick, M. Godt, P. Smouse
2003Heredity58 citations Open access
Semantic Scholar
Mating patterns and gene flow in the neotropical epiphytic orchid, Laelia rubescens
Dorset W. Trapnell, J. Hamrick
2004Molecular Ecology57 citations
Semantic Scholar
Mating system and pollen flow between remnant populations of the endangered tropical tree, Guaiacum sanctum (Zygophyllaceae)
E. Fuchs, J. Hamrick
2011Conservation Genetics55 citations Open access
Semantic Scholar
Allozyme diversity in the federally threatened golden paintbrush, Castilleja levisecta (Scrophulariaceae)
M. Godt, F. Caplow, J. Hamrick
2004Conservation Genetics55 citations
Semantic Scholar
Distribution of genetic diversity among disjunct populations of the rare forest understory herb, Trillium reliquum
E. Gonzales, J. Hamrick
2005Heredity54 citations Open access
Semantic Scholar
Spatial and genetic structure within populations of wild American ginseng (Panax quinquefolius L., Araliaceae).
J. Cruse-Sanders, J. Hamrick
2004Journal of Heredity53 citations Open access
Semantic Scholar
Inferring recruitment history from spatial genetic structure within populations of the colonizing tree Albizia julibrissin (Fabaceae)
E. Pardini, J. Hamrick
2008Molecular Ecology50 citations
Semantic Scholar
Multi-scale genetic analysis of Uniola paniculata (Poaceae): a coastal species with a linear, fragmented distribution.
Steven J. Franks, C. Richards, E. Gonzales, J. Cousins +1 more
2004American-Eurasian journal of botany48 citations
Semantic Scholar
Consequences of harvesting for genetic diversity in American ginseng (Panax quinquefolius L.): a simulation study
J. Cruse-Sanders, J. Hamrick, J. Ahumada
2005Biodiversity and Conservation47 citations
Semantic Scholar
Genetic Diversity and Structure in Two Species of Leavenworthia With Self-incompatible and Self-compatible Populations
Vanessa A. Koelling, J. Hamrick, Rodney Mauricio
2010Heredity46 citations Open access
Semantic Scholar
Population genetic structure of Venezuelan chiropterophilous columnar cacti (Cactaceae).
J. Nassar, J. Hamrick, T. Fleming
2003American-Eurasian journal of botany46 citations Open access
Semantic Scholar
Incorporating differences between genetic diversity of trees and herbaceous plants in conservation strategies
M. Y. Chung, S. Son, S. Herrando‐Moraira, Cindy Q. Tang +5 more
2020Conservation Biology42 citations
Semantic Scholar
Spatial genetic structure within size classes of the endangered tropical tree Guaiacum sanctum (Zygophyllaceae).
E. Fuchs, J. Hamrick
2010American-Eurasian journal of botany42 citations Open access
Semantic Scholar
Differential effects of landscape‐level environmental features on genetic structure in three codistributed tree species in Central America
M. Poelchau, J. Hamrick
2012Molecular Ecology40 citations
Semantic Scholar
High genetic diversity in Sarracenia leucophylla(Sarraceniaceae), a carnivorous wetland herb.
Z. Wang, J. Hamrick, M. Godt
2004Journal of Heredity40 citations
Semantic Scholar
Comparative phylogeography of three common Neotropical tree species
M. Poelchau, J. Hamrick
201338 citations
Semantic Scholar
Ecological determinants of genetic diversity in an expanding population of the shrub Myrica cerifera
D. Erickson, J. Hamrick, G. Kochert
2004Molecular Ecology38 citations
Semantic Scholar
A comparison of Direct and Indirect Measures of Gene Flow in the Bat‐Pollinated Tree Hymenaea courbaril in the Dry Forest Life Zone of Southwestern Puerto Rico
B. K. Dunphy, J. Hamrick, J. Schwagerl
2004INTERNATIONAL JOURNAL PLANT SCIENCES38 citations
Semantic Scholar
Inferring ancient Agave cultivation practices from contemporary genetic patterns
K. Parker, Dorset W. Trapnell, J. Hamrick, W. Hodgson +1 more
2010Molecular Ecology37 citations
Semantic Scholar
The impact of landscape disturbance on spatial genetic structure in the Guanacaste tree, Enterolobium cyclocarpum (Fabaceae).
E. Gonzales, J. Hamrick, P. Smouse, Dorset W. Trapnell +1 more
2010Journal of Heredity36 citations Open access
Semantic Scholar
Consequences of vegetative herbivory for maintenance of intermediate outcrossing in an annual plant.
J. Steets, J. Hamrick, T. Ashman
2006Ecology36 citations
Semantic Scholar
Direct and indirect estimates of gene flow among wild and managed populations of Polaskia chichipe, an endemic columnar cactus in Central Mexico
Adriana Otero-Arnaiz, A. Casas, J. Hamrick
2005Molecular Ecology34 citations
Semantic Scholar
Genetic consequences of pre-Columbian cultivation for Agave murpheyi and A. delamateri (Agavaceae).
K. Parker, J. Hamrick, W. Hodgson, Dorset W. Trapnell +2 more
2007American-Eurasian journal of botany32 citations
Semantic Scholar
Pollen‐mediated gene dispersal within continuous and fragmented populations of a forest understorey species, Trillium cuneatum
E. Gonzales, J. Hamrick, P. Smouse, R. Dyer
2006Molecular Ecology32 citations
Semantic Scholar
Palaeodistribution modelling does not support disjunct Pleistocene refugia in several Central American plant taxa
M. Poelchau, J. Hamrick
201331 citations
Semantic Scholar
Estimation of gene flow into fragmented populations of Bursera simaruba (Burseraceae) in the dry-forest life zone of Puerto Rico.
B. K. Dunphy, J. Hamrick
2007American-Eurasian journal of botany31 citations
Semantic Scholar
Genetic diversity within and among sinai populations of three Ballota species (Lamiaceae).
M. Zaghloul, J. Hamrick, A. A. Moustafa, W. Kamel +1 more
2006Journal of Heredity31 citations
Semantic Scholar
Geographic Influence on Genetic Structure in the Widespread Neotropical Tree Simarouba amara (Simaroubaceae)
B. Hardesty, C. Dick, J. Hamrick, B. Degen +2 more
2010Tropical Plant Biology29 citations Open access
Semantic Scholar
Genetic diversity in the endangered tropical tree, Guaiacum sanctum (Zygophyllaceae).
E. Fuchs, J. Hamrick
2010Journal of Heredity29 citations Open access
Semantic Scholar
Floral display and mating patterns within populations of the neotropical epiphytic orchid,Laeliarubescens (Orchidaceae).
Dorset W. Trapnell, J. Hamrick
2006American-Eurasian journal of botany27 citations Open access
Semantic Scholar
Levels of Genetic Variation in Trees: Influence of life history characteristics
J. Hamrick, J. Mitton, Y. Linhart
200726 citations
Semantic Scholar
VARIETY OF PHOROPHYTE SPECIES COLONIZED BY THE NEOTROPICAL EPIPHYTE, LAELIA RUBESCENS (ORCHIDACEAE)
Dorset W. Trapnell, J. Hamrick
200626 citations
Semantic Scholar
Peer Review #1 of "Everything you always wanted to know about gene flow in tropical landscapes (but were afraid to ask) (v0.2)"
W. Pereira, J. Veiga, Amanda R. Silva, C. da +331 more
201924 citations Open access
Semantic Scholar
Increased inbreeding but not homozygosity in small populations of Sabatia angularis (Gentianaceae)
Rachel B. Spigler, J. Hamrick, Shu-Mei Chang
2010Plant Systematics and Evolution24 citations
Semantic Scholar
The Mating System of Verbascum thapsus (Scrophulariaceae): The Effect of Plant Height
W. Carromero, J. Hamrick
2005INTERNATIONAL JOURNAL PLANT SCIENCES24 citations
Semantic Scholar
Genetic and morphological contrasts between wild and anthropogenic populations of Agave parryi var. huachucensis in south-eastern Arizona.
K. Parker, Dorset W. Trapnell, J. Hamrick, W. Hodgson
2014Annals of Botany23 citations Open access
Semantic Scholar
Gene flow among established Puerto Rican populations of the exotic tree species, Albizia lebbeck
B. K. Dunphy, J. Hamrick
2005Heredity23 citations
Semantic Scholar

Frequent co-authors

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Dorset W. Trapnell×10
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Dorset W. Trapnell — researcher profile on SciRah
E. Gonzales×5
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E. Gonzales — researcher profile on SciRah
J. Cruse-Sanders×4
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J. Cruse-Sanders — researcher profile on SciRah
M. Godt×4
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M. Godt — researcher profile on SciRah

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M. Poelchau — researcher profile on SciRah

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P. Smouse — researcher profile on SciRah

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E. Fuchs — researcher profile on SciRah

B. K. Dunphy×3

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B. K. Dunphy — researcher profile on SciRah

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K. Parker — researcher profile on SciRah

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W. Hodgson — researcher profile on SciRah

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C. Richards — researcher profile on SciRah

Rodney Mauricio×2

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Rodney Mauricio — researcher profile on SciRah