Analysis of Hybrid Zones

The genetical theory of natural selection

1930 • 17,330 citations

Animal Species and Evolution

1963 • 9,988 citations

EVOLUTION IN MENDELIAN POPULATIONS

1931 • 8,698 citations

The Neutral Theory of Molecular Evolution

1979 • 7,965 citations

ISOLATION BY DISTANCE

1943 • 5,343 citations

THE WAVE OF ADVANCE OF ADVANTAGEOUS GENES

1937 • 4,689 citations

Variation and Evolution in Plants

1950 • 4,163 citations

Systematics and the Origin of Species

2005 • 3,593 citations

Models of speciation by sexual selection on polygenic traits

1981 • 2,233 citations

The Growth of Biological Thought: Diversity, Evolution, and Inheritance

1982 • 2,170 citations

Speciation in Amazonian Forest Birds

1969 • 2,115 citations

SEXUAL SELECTION AND THE EVOLUTION OF FEMALE CHOICE

1982 • 1,066 citations

SKEPTICISM TOWARDS SANTA ROSALIA, OR WHY ARE THERE SO FEW KINDS OF ANIMALS?

1981 • 920 citations

Speciation as a Stage in Evolutionary Divergence

1940 • 872 citations

THE THEORETICAL POPULATION GENETICS OF VARIABLE SELECTION AND MIGRATION

1976 • 751 citations

EFFECTIVE DEME SIZES DURING LONG-TERM EVOLUTION ESTIMATED FROM RATES OF CHROMOSOMAL REARRANGEMENT

1979 • 716 citations

Genetic Revolutions, Founder Effects, and Speciation

1984 • 646 citations

An Evaluation of Narrow Hybrid Zones in Vertebrates

1977 • 637 citations

Suture-Zones of Hybrid Interaction Between Recently Joined Biotas

1968 • 566 citations

A NEO‐DARWINIAN COMMENTARY ON MACROEVOLUTION

1982 • 559 citations

Rapid speciation and chromosomal evolution in mammals.

1977 • 546 citations

The theory of a cline

1948 • 490 citations

Flow of mitochondrial DNA across a species boundary.

1983 • 486 citations

The dynamics of hybrid zones

1979 • 483 citations

HYBRIDIZATION OF THE HABITAT

1948 • 474 citations

Lectures on Nonlinear Differential-Equation Models in Biology

1979 • 468 citations

Evolution in closely adjacent plant populations

1978 • 396 citations

RAPID ORIGIN OF SEXUAL ISOLATION AND CHARACTER DIVERGENCE IN A CLINE

1982 • 350 citations

Gene flow past a cline

1979 • 331 citations

THE P FAMILY OF TRANSPOSABLE ELEMENTS IN DROSOPHILA

1983 • 310 citations

Problems in Distinguishing Historical from Ecological Factors in Biogeography

1982 • 310 citations

More evidence against speciation by reinforcement

1978 • 287 citations

Genetic Models of Sexual Selection

1980 • 275 citations

The Concept of Stasipatric Speciation

1968 • 272 citations

Biochemical genetics of hybridisation in european house mice

1973 • 261 citations

SELECTION FOR HETEROZYGOTES IN SMALL POPULATIONS

1962 • 254 citations

Character displacement and coexistence in mud snails (Hydrobiidae)

1975 • 243 citations

HETEROSIS AS AN EXPLANATION FOR LARGE AMOUNTS OF GENIC POLYMORPHISM

1978 • 205 citations

HYPOTHETICAL MECHANISM OF SPECIATION

1969 • 200 citations

Taxonomic Aspects of Avian Hybridization

1969 • 188 citations

Pattern of neutral polymorphism in a geographically structured population

1971 • 187 citations

Chain Processes in Chromosomal Speciation

1978 • 175 citations

Speciation in Wrens of the Genus Campylorhynchus

1966 • 161 citations

MATING CALL AND STAGE OF SPECIATION IN THE MICROHYLA OLIVACEA—M. CAROLINENSIS COMPLEX

1955 • 154 citations

Frequency-Dependent Selection, Disruptive Selection, and the Evolution of Reproductive Isolation

1980 • 142 citations

HYBRID ZONES AND REPRODUCTIVE ISOLATION

1965 • 141 citations

CLINES WITH VARIABLE MIGRATION

1976 • 134 citations

Genetic basis of male sterility in hybrids between two closely related species of Drosophila.

1984 • 131 citations

On two types of moving front in quasilinear diffusion

1976 • 131 citations

STABILITY OF THE NORTHERN FLICKER HYBRID ZONE IN HISTORICAL TIMES: IMPLICATIONS FOR ADAPTIVE SPECIATION THEORY

1985 • 125 citations

CHARACTERIZATION OF MITOCHONDRIAL DNA VARIABILITY IN A HYBRID SWARM BETWEEN SUBSPECIES OF BLUEGILL SUNFISH ( LEPOMIS MACROCHIRUS )

1984 • 123 citations

The Evolution of Morph-Ratio Clines

1966 • 121 citations

Three New Karyotypic Races of the Common Shrew Sorex Araneus (Mammalia: Insectivora) and a Phylogeny

1984 • 113 citations

Inversion polymorphism and incipient speciation in Anopheles gambiae s.str. in The Gambia, West Africa

1982 • 107 citations

Processes of speciation in animals.

1982 • 107 citations

The Genetic Relationships of the Salamanders of the Genus Plethodon

1979 • 107 citations

Stable linkage disequilibrium without epistasis in subdivided populations

1974 • 105 citations

The evolution of genetic discontinuity: Computer models of the selection of barriers to interbreeding between subspecies

1970 • 104 citations

Cytogenetics of the viatica group morabine grasshoppers. I. The coastal species

1967 • 103 citations

ALLOZYMIC AND MORPHOLOGICAL VARIATION IN POPULATION SAMPLES OF RUFOUS‐COLLARED SPARROW, ZONOTRICHIA CAPENSIS , IN RELATION TO VOCAL DIALECTS

1976 • 99 citations

GENOMIC COADAPTATION AND DEVELOPMENTAL STABILITY WITHIN INTROGRESSED POPULATIONS OFENNEACANTHUS GLORIOSUSANDE. OBESUS(PISCES, CENTRARCHIDAE)

1985 • 98 citations

Ecological genetics and speciation in land snails of the genus Partula

1969 • 95 citations

HYBRIDIZATION BETWEEN SPECIES OF THE RANA PIPIENS COMPLEX IN CENTRAL TEXAS

1979 • 94 citations

Patterns of morphological and molecular polymorphism in the land snail Cepaea nemoralis

1980 • 94 citations

Polymorphism for direction of coil in Partula suturalis: Behavioural isolation and positive frequency dependent selection

1982 • 93 citations

The genetic basis of hybrid inviability in the grasshopper Podisma pedestris

1981 • 85 citations

Phylogeny and Biogeography of the Rana Pipiens Complex: A Biochemical Evaluation

1983 • 84 citations

Evolutionary biology: Mitochondrial DNA: new clues about evolution

1983 • 83 citations

Rana pipiens Complex: Mating Call Structure and Taxonomy

1968 • 78 citations

genetics of colonizing species, proceedings

1965 • 78 citations

The genus Partula on Moorea: speciation in progress

1980 • 76 citations

HYBRIDIZATION AND SPECIATION IN FOSSORIAL MOLE RATS

1976 • 73 citations

Speciation in action and adaptation in subterranean mole rats: patterns and theory

1985 • 72 citations

A CHROMOSOMAL CLINE IN THE GRASSHOPPERPODISMA PEDESTRIS

1981 • 72 citations

THE EFFECT OF INTRAGENIC RECOMBINATION ON THE NUMBER OF ALLELES IN A FINITE POPULATION

1978 • 70 citations

Patterns of Geographic Variation in the Egg Morphology of the Fundulid Fish, Fundulus heteroclitus

1983 • 69 citations

Cytogenetics of the parthenogenetic grasshopper Warramaba virgo and its bisexual relatives

1982 • 68 citations

The effect on neutral gene flow of selection at a linked locus

1983 • 67 citations

Rare electrophoretic variants in a hybrid zone

1983 • 66 citations

Karyotypes of sixteen populations of the Thomomys talpoides complex of pocket Gophers (Rodentia-Geomyidae)

1968 • 65 citations

A single locus mass-action model of assortative mating, with comments on the process of speciation

1979 • 64 citations

BARRIERS TO GENE EXCHANGE BETWEEN CLOSELY RELATED CRICKET SPECIES. I. LABORATORY HYBRIDIZATION STUDIES

1983 • 62 citations

Speciation in Colombian forest birds west of the Andes. American Museum novitates ; no. 2294

1967 • 62 citations

Chromosomal repatterning--regularities and restrictions.

1975 • 61 citations

Genetic Relationships of the Eastern Large Plethodon of the Ouachita Mountains

1979 • 61 citations

Speciation in Sapsuckers (Sphyrapicus): I. Genetic Differentiation

1983 • 61 citations

An Analysis of Natural Hybridization between the Pocket gophers, Thomomys bottae and Thomomys umbrinus, in Arizona

1973 • 61 citations

HYBRID ZONES IN THOMOMYS BOTTAE POCKET GOPHERS: GENETIC, PHENETIC, AND ECOLOGIC CONCORDANCE PATTERNS

1979 • 59 citations

Multivariate analysis of the population systematics of the ringed snake, Natrix natrix (L)

1979 • 58 citations

EVIDENCE FOR SELECTION AGAINST HYBRIDS IN THE FAMILY CYPRINIDAE (GENUS NOTROPIS )

1985 • 57 citations

Allozymes and area effects in Cepaea nemoralis on the western Berkshire Downs

1976 • 55 citations

Hybridization in the Red-Eyed Towhees of Mexico: The Eastern Plateau Populations

1958 • 53 citations

MIMETIC VERSUS DISRUPTIVE COLORATION IN INTERGRADING POPULATIONS OFLIMENITIS ARTHEMISANDASTYANAXBUTTERFLIES

1968 • 50 citations

The fitness of hybrids between two chromosomal races of the grasshopper Podisma pedestris

1980 • 49 citations

Geographic Variation in Genic and Morphological Characters in Peromyscus californicus

1979 • 49 citations

THE PHENETICS AND ECOLOGY OF A NARROW HYBRID ZONE

1973 • 49 citations

Hybridization in the grackle Quiscalus quiscula in Louisiana.

1968 • 49 citations

Ecological Isolation in Triturus cristatus and Triturus marmoratus (Amphibia: Salamandridae)

1980 • 48 citations

Allozyme variation across a narrow hybrid zone in the grasshopper, Caledia captiva

1980 • 48 citations

THE STRUCTURE OF THE HYBRID ZONE INURODERMA BILOBATUM(CHIROPTERA: PHYLLOSTOMATIDAE)

1982 • 47 citations

ANALYSIS OF A NARROW HYBRID ZONE BETWEEN TWO SPECIES OFPSEUDOPHRYNE(ANURA: LEPTODACTYLIDAE) IN SOUTH-EASTERN AUSTRALIA

1978 • 46 citations

LIFE HISTORY STUDIES OF THE LESSER SNOW GOOSE (ANSER CAERULESCENS CAERULESCENS). III. THE SELECTIVE VALUE OF PLUMAGE POLYMORPHISM: NET FECUNDITY

1985 • 45 citations

Chromosomal Evidence for a Major Subdivision in Peromyscus leucopus

1983 • 45 citations

Isolation, Introgression and Genetic Variation in Rock-Wallabies

1982 • 45 citations

Evolutionary Relationships in Macrotus (Mammalia: Chiroptera): Biochemical Variation and Karyology

1976 • 44 citations

Cytogenetic analyses of wild sheep populations in northern Iran

1971 • 43 citations

The Role of Migration in the Genetic Structure of Populations in Temporally and Spatially Varying Environments. III. Migration Modification

1981 • 43 citations

NATURAL HISTORY OF CERION VIII: LITTLE BAHAMA BANK— A REVISION BASED ON GENETICS, MORPHOMETRICS, AND GEOGRAPHIC DISTRIBUTION'

1978 • 42 citations

Some Peculiarities of Spatially and Sexually Restricted Gene Exchange in the Erebia tyndarus Group

1958 • 41 citations

Starch-Gel Electrophoresis of Transferrins, Esterases and Other Plasma Proteins of Hybrids between Two Subspecies of Whiptail Lizard (Genus Cnemidophorus)

1962 • 39 citations

Changes in the Carrion/Hooded Crow Hybrid Zone and the Possible Importance of Climate

1975 • 38 citations

Species Groups in Proechimys (Rodentia, Echimyidae) as Indicated by Karyology and Bullar Morphology

1984 • 38 citations

CHROMOSOME FLOW BETWEEN CHROMOSOMALLY CHARACTERIZED TAXA OF A VOLANT MAMMAL, URODERMA BILOBATUM (CHIROPTERA: PHYLLOSTOMATIDAE)

1981 • 37 citations

Intraspecific karyotypic differentiation in the Australian phasmatid Didymuria violescens (Leach)

1975 • 37 citations

COMPARATIVE ASSESSMENT OF MODES OF REPRODUCTIVE ISOLATION AMONG FOUR SPECIES OF LEOPARD FROGS ( RANA PIPIENS COMPLEX)

1983 • 37 citations

POLYMORPHISM FOR BREEDING COLORS IN GASTEROSTEUS ACULEATUS II. REPRODUCTIVE SUCCESS AS A RESULT OF CONVERGENCE FOR THREAT DISPLAY

1980 • 37 citations

The structure and maintenance of hybrid zones as exemplified by Podisma pedestris

1980 • 36 citations

REPLY TO “ALLOZYMES AND SONG DIALECTS: A REASSESSMENT”

1984 • 35 citations

Analysis of Hybridization between Two Subspecies of the Desert Whiptail Lizard, Cnemidophorus tigris

1962 • 35 citations

GENETIC INTERACTIONS BETWEEN HYBRIDIZING CYTOTYPES OF THE TENT‐MAKING BAT ( URODERMA BILOBATUM )

1981 • 34 citations

Acoustic analysis of an intergrade zone between two call races of the Limnodynastes tasmaniensis complex (Anura : Leptodactylidae) in south-eastern Australia

1975 • 34 citations

GENIC CHANGES ASSOCIATED WITH THE ESTABLISHMENT OF SYMPATRY IN ORIOLES OF THE GENUS ICTERUS

1979 • 33 citations

CYTOGENETICS OF THE PARTHENOGENETIC GRASSHOPPER WARRAMABA (FORMERLY MORABA) VIRGO AND ITS BISEXUAL RELATIVES. V. INTERACTION OF W. VIRGO AND A BISEXUAL SPECIES IN GEOGRAPHIC CONTACT

1979 • 33 citations

Karyotypic Variation in Peromyscus Boylii (Rodentia: Cricetidae) from Mexico and Corresponding Taxonomic Implications

1974 • 33 citations

Analysis of Hybridization Between Black-Backed and White-Backed Magpies in South-Eastern Australia

1976 • 33 citations

Geographic trends in flavone-glycosylation genes and seed morphology in EuropeanSilene pratensis (Caryophyllaceae)

1983 • 32 citations

The hybrid sink effect

1980 • 32 citations

Differentiation between Inshore and Offshore Spotted Dolphins in the Eastern Tropical Pacific Ocean

1984 • 31 citations

The Progress of Oriole Hybridization in Kansas

1983 • 31 citations

Allozymic and morphological variation in the hybrid zone between Bombina bombina and Bombina variegata (Anura, Discoglossidae) in northeastern Austria

2009 • 30 citations

The chromosomal component of reproductive isolation in the grasshopper caledia captiva III. Chiasma distribution patterns in a new chromosomal taxon

1984 • 30 citations

Comparison of Microgeographic Variation in Morphological and Electrophoretic Traits

1977 • 30 citations

REDUCTION OF GENE FLOW DUE TO THE PARTIAL STERILITY OF HETEROZYGOTES FOR A CHROMOSOME MUTATION. I. STUDIES ON A “NEUTRAL” GENE NOT LINKED TO THE CHROMOSOME MUTATION IN A TWO POPULATION MODEL

1983 • 30 citations

Ethological isolation between sympatric and allopathic species of the Obscura group of Drosophila

1968 • 30 citations

MULTIVARIATE ANALYSIS OF THE INTROGRESSIVE REPLACEMENT OFCLARKIA NITENSBYCLARKIA SPECIOSA POLYANTHA(ONAGRACEAE)

1976 • 29 citations

Electrophoretic analysis of a chromosomal hybrid zone in the grasshopper Podisma pedestris

1983 • 29 citations

Revision of the Pocket Mice, Perognathus penicillatus

1967 • 28 citations

NATURAL HYBRIDIZATION AND GENETIC DIVERGENCE BETWEEN THE TOADSBUFO BOREASANDBUFO PUNCTATUS

1979 • 28 citations

Hybrid sterility in meadowlarks

1979 • 27 citations

The litoria ewingi complex (Anura : Hylidae) in south-eastern Australia IV. Variation in mating-call structure across a narrow hybrid zone between L. ewingi ad L.paraewingi

1976 • 27 citations

Role of contact areas in chromosomal speciation of the European long-tailed house mouse (Mus musculus domesticus)

1985 • 26 citations

Is intragenic recombination a factor in the maintenance of genetic variation in natural populations?

1979 • 26 citations

Sympatric Hybridization and Allozyme Variation in the Toads Bufo americanus and B. fowleri in Southern Ontario

1984 • 24 citations

The ecological genetics of quantitative characters in Maniola jurtina and other butterflies

1984 • 24 citations

Some Theoretical Analyses of Migration Selection Interaction in a Cline: A Generalized Two Range Environment

1976 • 24 citations

A narrow hybrid zone between two western australian frog species Ranidella Insignifera and R. Pseudinsignifera: The extent of introgression

1978 • 23 citations

Drosophila Hybrids in Nature: Proof of Gene Exchange Between Sympatric Species

1975 • 23 citations

Cytogenetics of the hybrids of three members of the grasshopper genus Vandiemenella (Orthoptera: Eumastacidae: Morabinae)

1979 • 22 citations

Analysis of Hybridization between Crotaphytus wislizenii and Crotaphytus silus (Sauria: Iguanidae) in California

1970 • 22 citations

A measurement of dispersal in the grasshopper Podisma pedestris (Orthoptera: acrididae)

1982 • 21 citations

Hybridization among the subspecies of the plethodontid salamander Ensatina eschscholtzi

1974 • 21 citations

Biochemical Variation and Systematics of Peromyscus pectoralis

1976 • 21 citations

Structure and dynamics of a narrow hybrid zone between Geocrinia laevis and G. Victoriana (Anura: Leptodactylidae) in South-Eastern Australia

1979 • 20 citations

Variation in spontaneous mutation and repair in natural population lines of Drosophila melanogaster

1984 • 19 citations

Genetics and ecology of a hybrid zone in Hyalophora (Lepidoptera: Saturniidae)

1984 • 19 citations

DYNAMICS OF MORPHOLOGICAL DIFFERENTIATION: TEMPORAL IMPACT OF GENE FLOW IN POCKET GOPHER POPULATIONS

1984 • 19 citations

Albumin Evolution in Peromyscus and Sigmodon

1984 • 19 citations

Evolution of an Altruistic Trait through Group Selection as Studied by the Diffusion Equation Method

1984 • 18 citations

Hybridization between Desmognathus fuscus and Desmognathus ochrophaeus (Amphibia: Urodela: Plethodontidae) in Northeastern Ohio and Northwestern Pennsylvania

1981 • 18 citations

Patterns of Allozyme Variation in Ambystoma tigrinum mavortium and A. t. nebulosum

1980 • 18 citations

ALLOZYME VARIATION THROUGH A CLINAL HYBRID ZONE BETWEEN THE TOADS BUFO AMERICANUS AND B. HEMIOPHRYS IN SOUTHEASTERN MANITOBA

1983 • 17 citations

Systematic Status of the Mojave Ground Squirrel, Spermophilus mohavensis (Subgenus Xerospermophilus)

1983 • 17 citations

Quantitative immunological studies of the albumins of several species of fire bellied toads, genus Bombina

1979 • 16 citations

Serum Albumins and Hybridization in Two Species of the Rana pipiens Complex in the North Central United States

1976 • 16 citations

Hybridization of 'White-headed' and 'Orange-winged' VAried Sittellas, Daphoenositta chrysoptera leucocephala and D.c. chrysoptera (Aves: Neosittidae), in Eastern Australia

1983 • 16 citations

Gentic Differentiation, Hybridization and Reproductive Isolation in Mygalopsis marki Bailey (Orthoptera: Tettigoniidae)

1983 • 16 citations

THE CONGRUENCE OF MORPHOMETRIC SHAPE IN RELATION TO GENETIC DIVERGENCE IN FOUR RACES OF MORABINE GRASSHOPPERS (ORTHOPTERA: EUMASTACIDAE)

1974 • 15 citations

HYBRIDIZATION IN SOME INDIAN BULBULS PYCNONOTUS CAFER X P. LEUCOGENYS

1959 • 12 citations

A narrow hybrid zone between two Western Australian frog species Ranidella insignifera and R. pseudinsignifera: the fitness of hybrids

1979 • 12 citations

Chromosomal Differentiation of Hybridizing Ground Squirrels (Spermophilus mexicanus and S. tridecemlineatus)

1984 • 11 citations

Chromosomal variation in Agromyzidae (Diptera)

2009 • 11 citations

The Litoria ewingi Complex (Anura: Hylidae) in South-Eastern Australia VII.* Mating Call Structure and Gentic Compatibility across a Narrow Hybrid Zone between L. ewingi and L. parawingi

1983 • 11 citations

Clines Induced by Variable Migration

1970 • 10 citations

Karyotypic Variation in the Pocket Mouse,Perognathus PenicillatusWoodhouse (Rodentia-Heteromyidae)

1969 • 10 citations

“ISOLATING MECHANISMS” IN THE BLUE-WINGED WARBLER-GOLDEN-WINGED WARBLER COMPLEX

1969 • 9 citations

Chromosomal and Morphological Variation and Circular Overlap in the Deer Mouse, Peromyscus Maniculatus, in Texas and Oklahoma

1975 • 8 citations

The width of the hybrid zone in Caledia captiva

1981 • 7 citations

Natural Hybridization between Two Species of Collared Lizards (Crotaphytus)

1983 • 6 citations

Relationships among the four species of the superspecies Celeus elegans (Aves, Picidae). American Museum novitates ; no. 2487

1972 • 6 citations

Aspects of the population structure of the sand martin flea,Ceratophyllus styx, in Britain

1984 • 4 citations

Vocal behavior, morphology and hybridization of Australian spotted and yellow-rumped pardalotes (Aves, Pardalotus). American Museum novitates ; no. 2756

1983 • 4 citations

Asymptotic Behavior of the Solutions of the Fisher Equation

1970 • 4 citations

Intra-specific divergence in the Western Australian frog Ranidella insignifera

1978 • 3 citations