James. L. Hamrick

James. L. Hamrick's AcademicInfluence.com Rankings

James. L. Hamrick

Biology

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Biology

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James. L. Hamrick's Published Works

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Total number of citations to an author for the works they published in a given year. This highlights publication of the most important work(s) by the author

Published Works

Allozyme diversity in plant species. (1990) (3035)
Effects of life history traits on genetic diversity in plant species (1996) (2115)
ECOLOGICAL DETERMINANTS OF GENETIC STRUCTURE IN PLANT POPULATIONS (1984) (2088)
Factors influencing levels of genetic diversity in woody plant species (1992) (1361)
Relationships Between Life History Characteristics and Electrophoretically Detectable Genetic Variation in Plants (1979) (886)
Response of forest trees to global environmental changes (2004) (544)
Correlations between species traits and allozyme diversity: implications for conservation biology. (1991) (508)
Conservation Genetics of Endemic Plant Species (1996) (503)
Allozyme polymorphisms detected in mature needle tissue of ponderosa pine (1979) (429)
Conservation Genetics: Case Histories from Nature (1996) (384)
Isozymes and the Analysis of Genetic Structure in Plant Populations (1989) (365)
Reproductive and Genetic Consequences of Forest Fragmentation: Two Case Studies of Neotropical Canopy Trees (1997) (353)
The breeding structure of a tropical keystone plant resource (1998) (312)
The influence of seed dispersal mechanisms on the genetic structure of tropical tree populations (1993) (311)
Microgeographical Variation in Allozyme Frequencies in Avena barbata. (1972) (299)
The effect of the density of flowering individuals on the mating systems of nine tropical tree species (1991) (287)
Pollen Dispersal in Low-Density Populations of Three Neotropical Tree Species (1996) (219)
Allozyme Diversity in Cultivated Crops (1997) (214)
The Advantage of Mast Years for Wind Pollination (1990) (200)
SONORAN DESERT COLUMNAR CACTI AND THE EVOLUTION OF GENERALIZED POLLINATION SYSTEMS (2001) (168)
Effect of soil surface topography and litter cover on the germination, survival, and growth of musk thistle (Carduus nutans) (1987) (167)
Quantification of genetic diversity at allozyme loci (1997) (160)
Genetic variation in Pueraria lobata (Fabaceae), an introduced, clonal, invasive plant of the southeastern United States. (2000) (142)
Paternity analysis of the breeding structure of strangler fig populations: evidence for substantial long-distance wasp dispersal (1996) (142)
Reproductive Strategies and Growth Patterns in Sunflowers (Helianthus) (1974) (138)
Unexpectedly High Clonal Diversity of Two Salt Marsh Perennials Across a Severe Environmental Gradient (2004) (138)
The Breeding Structure of Tropical Tree Populations (1990) (133)
Genetic Diversity and Population Size in Four Rare Southern Appalachian Plant Species (1996) (133)
FINE‐SCALE GENETIC STRUCTURE OF A TURKEY OAK FOREST (1995) (132)
Understanding the population genetic structure of Gleditsia triacanthos L.: seed dispersal and variation in female reproductive success (1998) (128)
Gene flow and distribution of genetic variation in plant populations (1987) (126)
Genetic diversity in harvested and protected populations of wild American ginseng, Panax quinquefolius L. (Araliaceae). (2004) (117)
EVIDENCE FOR LIMITED INTERCONTINENTAL GENE FLOW IN THE COSMOPOLITAN MUSHROOM, SCHIZOPHYLLUM COMMUNE (1999) (111)
INFLUENCE OF MICROHABITAT HETEROGENEITY ON GENE FREQUENCY DISTRIBUTION AND GAMETIC PHASE DISEQUILIBRIUM IN AVENA BARBATA (1979) (109)
The mating system of Cavanillesia platanifolia under extremes of flowering-tree density: a test of predictions (1992) (109)
Allozyme variation in Louisiana irises: a test for introgression and hybrid speciation (1990) (105)
Interspecific Pollen Competition and Reproductive Isolation in Iris (1993) (104)
Isozyme variation in tropical trees: procedures and preleminary results (1986) (102)
Genetic diversity and clonal structure in a columnar cactus, Lophocereus schottii (1992) (99)
Genetic Variation and Longevity (1979) (98)
ORGANIZATION OF GENETIC DIVERSITY WITHIN AND AMONG POPULATIONS OF GLEDITSIA TRIACANTHOS (LEGUMINOSAE) (1990) (98)
PATTERNS AND LEVELS OF GENETIC VARIATION IN GREAT BASIN BRISTLECONE PINE, PINUS LONGAEVA (1983) (95)
The influence of seed dispersal mechanisms on the genetic structure of plant populations (1986) (95)
Spatial and genetic structure of two sandhills oaks: Quercus laevis and Quercus margaretta (Fagaceae) (1994) (94)
Fine-scale genetic structure in Pinus clausa (Pinaceae) populations: effects of disturbance history (2001) (94)
THE UNUSUAL LIFE HISTORY OF ALSEIS BLACKIANA: A SHADE-PERSISTENT PIONEER TREE? (2001) (92)
Local genetic and clonal structure in the tropical terrestrial bromeliad, Aechmea magdalenae (1990) (90)
A ROLE FOR NONADAPTIVE PROCESSES IN PLANT GENOME SIZE EVOLUTION? (2010) (90)
Gene flow in forest trees. (2000) (83)
Observations on the genetic structure and mating system of ponderosa pine in the Colorado front range (2004) (81)
Allozyme diversity in the endangered pitcher plant Sarracenia rubra ssp. Alabamensis (Sarraceniaceae) and its close relative S. rubra ssp. rubra. (1998) (81)
Genetic Diversity in a Threatened Wetland Species, Helonias bullata (Liliaceae) (1995) (80)
GENETIC DIVERSITY AND POPULATION STRUCTURE IN TRADESCANTIA HIRSUTICAULIS (COMMELINACEAE) (1993) (76)
Reproductive Isolation in the Mimulus guttatus M. nasutus Complex (1978) (76)
Levels of allozyme diversity in populations of uncommon Neotropical tree species (1991) (76)
Genetic variation and evolution of Polaskia chichipe (Cactaceae) under domestication in the Tehuacán Valley, central Mexico (2005) (74)
Comparative genetic structure of two co-occurring tree species, Maclura pomifera (Moraceae) and Gleditsia triacanthos (Leguminosae) (1991) (74)
Mating System and Phenology Ceiba Pentadra (Bombacaeae) in Central Panama (1992) (74)
Using population genetic analyses to understand seed dispersal patterns (2011) (74)
Genetic diversity and population structure of the serpentine endemic Calystegia collina (Convolvulaceae) in northern California. (2000) (73)
Understanding the Genetic Structure of Plant Populations: Some Old Problems and a New Approach (1985) (70)
Mating system variation in hybridizing irises: Effects of phenology and floral densities on family outcrossing rates (1994) (69)
Comparative Analysis of Population Genetic Structure in Quercus macrocarpa and Q. gambelii (Fagaceae) (1990) (69)
Mating systems of two Bombacaceous trees of a neotropical moist forest (1990) (69)
Demography of Two Natural Populations of Musk Thistle (Carduus Nutans) (1983) (67)
Genetic variation of introduced Hawaiian and native Costa Rican populations of an invasive tropical shrub, Clidemia hirta (Melastomataceae). (2004) (63)
Comparisons of Allozyme Diversity among Rare and Widespread Rhus Species (1992) (61)
Identification of glacial refugia in south‐eastern North America by phylogeographical analyses of a forest understorey plant, Trillium cuneatum (2008) (60)
Influence of Habitat Patchiness on Genetic Diversity and Spatial Structure of a Serpentine Endemic Plant (2000) (57)
GENETIC STRUCTURE OF GEOGRAPHICALLY MARGINAL POPULATIONS OF PONDEROSA PINE (1989) (57)
Population structure and mating system in Tachigali versicolor, a monocarpic neotropical tree (1998) (55)
GENETIC VARIATION IN LATHYRUS LATIFOLIUS (LEGUMINOSAE) (1991) (54)
The effects of stand density on frequency of filled seeds and fecundity in lodgepole pine (Pinuscontorta Dougl.) (1988) (54)
Distribution of genetic diversity among disjunct populations of the rare forest understory herb, Trillium reliquum (2005) (53)
A multiyear estimate of the effective pollen donor pool for Albizia julibrissin (2003) (53)
REALIZED GENE FLOW VIA POLLEN IN ARTIFICIAL POPULATIONS OF MUSK THISTLE, CARDUUS NUTANS L. (1987) (53)
Spatial and genetic structure within populations of wild American ginseng (Panax quinquefolius L., Araliaceae). (2004) (52)
Mating patterns and gene flow in the neotropical epiphytic orchid, Laelia rubescens (2004) (52)
Mating system and pollen flow between remnant populations of the endangered tropical tree, Guaiacum sanctum (Zygophyllaceae) (2011) (51)
Biogeography and population genetics of whitebark pine, Pinus albicaulis. (1997) (50)
Allozyme diversity in the federally threatened golden paintbrush, Castilleja levisecta (Scrophulariaceae) (2004) (50)
Frequency and direction of hybridization in sympatric populations of Pinus taeda and P. echinata (Pinaceae). (1997) (48)
Genetic Mosaics in Strangler Fig Trees: Implications for Tropical Conservation (1991) (45)
Isozyme variation within and among populations of Hosta (Liliaceae) in Korea (1991) (45)
Consequences of harvesting for genetic diversity in American ginseng (Panax quinquefolius L.): a simulation study (2005) (44)
Genetic structure of two endangered pitcher plants, Sarracenia jonesii and Sarracenia oreophila (sarraceniaceae) (1996) (43)
Multi-scale genetic analysis of Uniola paniculata (Poaceae): a coastal species with a linear, fragmented distribution. (2004) (43)
Comparison of allozyme variability in a native and an introduced species of Lonicera (1995) (43)
Patterns of genetic diversity reveal multiple introductions and recurrent founder effects during range expansion in invasive populations of Geranium carolinianum (Geraniaceae) (2013) (42)
Genetic variation in some plants of Florida scrub (1996) (41)
Genetic Divergence Among Infraspecific Taxa of Sarracenia purpurea (1998) (41)
Comparisons of genetic diversity in white spruce (Picea glauca) and jack pine (Pinus banksiana) seed orchards with natural populations (2001) (41)
Allozyme variation in black locust (Robiniapseudoacacia) (1989) (40)
Genetic and clonal diversity for Myrica cerifera along a spatiotemporal island chronosequence (2003) (39)
Spatial genetic structure within size classes of the endangered tropical tree Guaiacum sanctum (Zygophyllaceae). (2010) (39)
VARIATION IN THE BREEDING SYSTEM OF ELYMUS CANADENSIS (1980) (38)
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 (2004) (38)
Elite populations for conifer breeding and gene conservation (1996) (37)
Population Biology of Grasses: Allozyme diversity in the grasses (1998) (37)
Genetic relatedness in open-pollinated families of two leguminous tree species, Robinia pseudoacacia L. and Gleditsia triacanthos L. (1990) (36)
Consequences of vegetative herbivory for maintenance of intermediate outcrossing in an annual plant. (2006) (36)
High genetic diversity in Sarracenia leucophylla(Sarraceniaceae), a carnivorous wetland herb. (2004) (35)
Allozyme diversity in Pinus virginiana (Pinaceae): intraspecific and interspecific comparisons. (1997) (34)
Genetic aspects of fertility differentials in ponderosa pine (1979) (34)
Variation and selection in western US montane species. I. White Fir. (1972) (34)
The impact of landscape disturbance on spatial genetic structure in the Guanacaste tree, Enterolobium cyclocarpum (Fabaceae). (2010) (33)
Variation in estimates of outcrossing in musk thistle populations (1984) (33)
Direct and indirect estimates of gene flow among wild and managed populations of Polaskia chichipe, an endemic columnar cactus in Central Mexico (2005) (33)
Genetic diversity and structure in Pinuspungens (Table Mountain pine) populations (1991) (32)
Breeding population size of a fragmented population of a Costa Rican dry forest tree species. (2001) (32)
Allozyme diversity in the endangered shrub Linderamelissifolia (Lauraceae) and its widespread congener Linderabenzoin (1996) (31)
Genetic consequences of specialization: yucca moth behavior and self-pollination in yuccas (1997) (31)
Genetic diversity and population structure of Yucca filamentosa (Agavaceae). (1998) (31)
Mating systems in open-pollinated families of black locust (Robinia pseudoacacia). (1990) (29)
Genetic variation in sand pine (Pinus clausa) (1996) (29)
Genetic consequences of pre-Columbian cultivation for Agave murpheyi and A. delamateri (Agavaceae). (2007) (29)
Estimation of gene flow into fragmented populations of Bursera simaruba (Burseraceae) in the dry-forest life zone of Puerto Rico. (2007) (28)
Genetic diversity within and among sinai populations of three Ballota species (Lamiaceae). (2006) (27)
Brief communication. Low allozyme diversity in Schwalbea americana (Scrophulariaceae), an endangered plant species (1998) (27)
Genetic structure of natural populations of black locust (Robinia pseudoacacia L.) at Coweeta, North Carolina (1998) (27)
A Population Genetic Analysis of Ziziphus celata, an Endangered Florida Shrub (1997) (26)
Genetic diversity in the endangered tropical tree, Guaiacum sanctum (Zygophyllaceae). (2010) (26)
GENETIC VARIATION IN SHORTLEAF PINE, PINUS ECHINATA MILL. (PINACEAE) (1995) (25)
Geographic Influence on Genetic Structure in the Widespread Neotropical Tree Simarouba amara (Simaroubaceae) (2010) (25)
Levels of Genetic Variation in Trees: Influence of life history characteristics (2007) (24)
The Mating System of Verbascum thapsus (Scrophulariaceae): The Effect of Plant Height (2005) (24)
VARIETY OF PHOROPHYTE SPECIES COLONIZED BY THE NEOTROPICAL EPIPHYTE, LAELIA RUBESCENS (ORCHIDACEAE) (2006) (24)
Genetic variation and population genetic structure in Trifolium pratense. (1998) (24)
Allozyme Variation in Elymus canadensis from the Tallgrass Prairie Region: Geographic Variation (1979) (24)
Encounters of old foes on a new battle ground for an invasive tree, Albizia julibrissin Durazz (Fabaceae) (2011) (23)
Isolation and characterization of microsatellites in the columnar cactus: Polaskia chichipe and cross‐species amplification within the Tribe Pachycereeae (Cactaceae) (2004) (23)
Floral display and mating patterns within populations of the neotropical epiphytic orchid,Laeliarubescens (Orchidaceae). (2006) (22)
Estimates of outcrossing rates in Lathyrus latifolius populations (1991) (22)
Genetic and morphological contrasts between wild and anthropogenic populations of Agave parryi var. huachucensis in south-eastern Arizona. (2014) (22)
HETEROGENEITY IN POLLEN ALLELE FREQUENCIES AMONG CONES, WHORLS, AND TREES OF TABLE MOUNTAIN PINE (PINUS PUNGENS) (1991) (21)
Comparison of clonal diversity in mountain and Piedmont populations of Trillium cuneatum (Melanthiaceae-Trilliaceae), a forest understory species. (2008) (21)
Incorporating differences between genetic diversity of trees and herbaceous plants in conservation strategies (2020) (21)
Regional genetic variation in turkey oak, Quercus laevis (1993) (21)
Increased inbreeding but not homozygosity in small populations of Sabatia angularis (Gentianaceae) (2010) (21)
Multiple-population versus hierarchical conifer breeding programs: a comparison of genetic diversity levels (1995) (20)
Estimation of Seed Dispersal in an Old-Growth Population of Longleaf Pine (Pinus palustris) Using Maternity Exclusion Analysis (2004) (20)
Genetic insights into the biogeography of the southeastern North American endemic, Ceratiola ericoides (Empetraceae). (2007) (19)
Geographic Distribution of Allozyme Variation in Ulmus crassifolia (1992) (19)
The mating system of Liatris helleri (Asteraceae), a threatened plant species (1995) (18)
Variation and selection in western montane species II. Variation within and between populations of white firon an elevational transect (2004) (18)
The Origin of Caribbean Pine in the Seasonal Swamps of the Yucatán (2005) (17)
AN ECOLOGICAL STUDY OF BRISTLECONE PINE (PINUS LONGAEVA) IN UTAH AND EASTERN NEVADA (1984) (16)
Nonrandom Associations between Sex and 6-Phosphogluconate Dehydrogenase Isozyme Genotypes in Gleditsia triacanthos L. (1990) (16)
Systematic relationships within Gelsemium (Loganiaceae): evidence from isozymes and cladistics (1993) (16)
Allozyme Variation in Two Great Smoky Mountain Endemics: Glyceria nubigena and Rugelia nudicaulis (1995) (15)
Isozyme variation among soil isolates ofHistoplasma capsulatum (1981) (15)
Genetic insights into the historical distribution of Polylepis pauta (Rosaceae) in the northeastern Cordillera Oriental of Ecuador (2011) (14)
Spatial genetic structure of the southeastern North American endemic, Ceratiola ericoides (Empetraceae). (2008) (14)
Evaluating the utility of microsatellites for investigations of autopolyploid taxa. (2011) (14)
Breeding systems, mating systems, and genomics of gender determination in angiosperm trees. (2016) (12)
Genetic diversity within a threatened, endemic North American species, Euphorbia telephioides (Euphorbiaceae) (2012) (12)
Genetic diversity and morphological differentiation in Liatris helleri (Asteraceae), a threatened plant species (1996) (11)
Influence of quaternary history on the population genetic structure of Douglas-fir (Pseudotsuga menziesii) in the Great Basin (1993) (11)
Isolation and characterization of microsatellite loci in the Guanacaste tree, Enterolobium cyclocarpum (2008) (10)
Molecular Approaches in Natural Resource Conservation and Management: Pollen and seed movement in disturbed tropical landscapes (2010) (10)
High but variable outcrossing rates in the invasive Geranium carolinianum (Geraniaceae). (2014) (10)
The Genetic Structure of Tropical Tree Populations: Associations with Reproductive Biology (2019) (9)
Allozyme diversity in Macbridea alba (Lamiaceae), an endemic florida mint. (2004) (9)
Morphometric and Isozyme Analysis of the Genus Hosta (Liliaceae) in Korea (1991) (9)
GENETIC VARIATION WITHIN TWO SUBSPECIES OF ACACIA NILOTICA (1999) (8)
Estimation of mating system parameter of Albizia julibrissin (Fabaceae) (1997) (8)
Spatial distribution of Guaiacum sanctum (Zygophyllaceae) seedlings and saplings relative to canopy cover in Palo Verde National Park, Costa Rica. (2013) (8)
MULTIVARIATE ADAPTATION BUT NO INCREASE IN COMPETITIVE ABILITY IN INVASIVE GERANIUM CAROLINIANUM L. (GERANIACEAE) (2014) (8)
Genetic variation and evidence of hybridization in the genus Rhus (Anacardiaceae). (2002) (8)
Low levels of allozyme differentiation betweenPyxidanthera (pyxie-moss) taxa (Diapensiaceae) (1995) (8)
Reproductive consequences of variation in flowering phenology in the dry forest tree Enterolobium cyclocarpum in Guanacaste, Costa Rica. (2018) (7)
Conservation genetics of Sinai’s remnant populations of Moringa peregrina, an economically valuable medicinal plant (2012) (7)
Levels of isozyme variation within and among Histoplasma capsulatum localities. (1986) (7)
The Scope and the Limits of Conservation Genetics@@@Conservation Genetics: Case Histories from Nature. (1996) (6)
Genetic Variation within and among Remnant Big Bluestem (Andropogon gerardii, Poaceae) Populations in the Carolinas (2012) (6)
Male Reproductive Success at Three Early Life Stages in the Tropical Tree Platypodium elegans (2009) (6)
Tropical breeding systems: one and done? (2012) (6)
Genetic Diversity in Cymophyllus fraserianus (Cyperaceae), a Rare Monotypic Genus (2004) (5)
Allozymic and Morphologic Differentiation between Three Ballota Species ( Labiatae ) Growing in Southern Sinai , Egypt (2014) (4)
AN INTRODUCED, CLONAL, INVASIVE PLANT OF THE (2000) (4)
Hierarchical patterns of paternity within crowns of Albizia julibrissin (Fabaceae). (2007) (4)
Phylogeography of the Neotropical epiphytic orchid, Brassavola nodosa: evidence for a secondary contact zone in northwestern Costa Rica (2019) (4)
Mating system contributes only slightly to female maintenance in gynodioecious Geranium maculatum (Geraniaceae) (2014) (4)
Extant population genetic variation and structure of eastern white pine (Pinus strobus L.) in the Southern Appalachians (2019) (3)
Allozyme diversity in Amelanchier arborea and A-laevis (Rosaceae) (1998) (3)
The cryptic population biology of Chthamalus fragilis Darwin, 1854 (Cirripedia, Thoracica) on the Atlantic coast of North America (2018) (3)
A Dissertation Submitted to the Graduate Faculty of The University of Georgia in Partial Fulfillment of the Requirements for the Degree DOCTOR (2005) (2)
Inter-island but not intra-island divergence among populations of sea oats, Uniola paniculata L. (Poaceae) (2013) (2)
Development and characterization of microsatellite primers in Geranium carolinianum (Geraniaceae) with 454 sequencing1 (2013) (2)
3. BREEDING STRUCTURE OF NEOTROPICAL DRY-FOREST TREE SPECIES IN FRAGMENTED LANDSCAPES (2019) (2)
OF MUSK THISTLE, CARD UUS NUTANS L. (1987) (1)
GENETIC VARIATION IN SOME PLANTS OF (1996) (1)
Winter injury among white fir seedlings...unusual pattern in seed source study (1967) (1)
Consequences of landscape patterns on the genetic composition of remnant hardwood stands in the Southeast: A pilot study. (2003) (1)
Vegetation analyses of the South Atlantic Coastal Plain Limestone Forest association1 (2016) (1)
BASIN BRISTLECONE PINE, PINUS LONGAEVA (1983) (1)
Plant Population Biology Beyond the Crossroads@@@Perspectives on Plant Population Ecology. (1986) (1)
Referees for volume 30 (1992) (0)
Referees for Volume 35 (2004) (0)
The Reproductive Biology of a Neotropical Tree, Enterolobium Cyclocarpum ; The National Tree of Costa Rica (2013) (0)
Referees for volume 31 (1993) (0)
Genetic diversity within a threatened, endemic North American species, Euphorbia telephioides (Euphorbiaceae) (2012) (0)
Changing patterns of genetic differentiation in the slender wild oat, Avena barbata (2022) (0)
Genetic inference of orchid population dynamics on different‐aged lava flows in Costa Rica (2022) (0)
Conservation genetics of Sinai’s remnant populations of Moringa peregrina, an economically valuable medicinal plant (2011) (0)
Referees for volume 31 (2021) (0)
Referees for volume 29 (1991) (0)
Reviewers for Volume 38 (2017) (0)
Pollen movement within populations of Enterolobium cyclocarpum experiencing different levels of disturbance - Confirmed (2013) (0)
PLANT POPULATION BIOLOGY BEYOND THE CROSSROADS. (1986) (0)
Referees for volume 29 (2004) (0)
Acknowledgment of referees, 1995 (2009) (0)
Referees for volume 30 (2004) (0)
Inter-island but not intra-island divergence among populations of sea oats, Uniola paniculata L. (Poaceae) (2012) (0)
ISOZYME ANALYSES OF GLEDITSIA-CASPICA FROM AZERBAIJAN SSR USSR PRELIMINARY ESTIMATES OF GENETIC DIVERSITY AND DEGREE OF GENETIC DIVERGENCE FROM NORTH AMERICAN GLEDITSIA-TRIACANTHOS (1991) (0)
Evidence for partialmelt at the core – mantleboundarynorthof Tonga from thestrong scatteringof seismicwaves (0)

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What Schools Are Affiliated With James. L. Hamrick?

James. L. Hamrick is affiliated with the following schools:

University of Kansas
University of California, Davis
University of Georgia

James. L. Hamrick's Academic­Influence.com Rankings

Why Is James. L. Hamrick Influential?

James. L. Hamrick's Published Works

Published Works

What Schools Are Affiliated With James. L. Hamrick?

James. L. Hamrick's AcademicInfluence.com Rankings