Courtship, copulation and oviposition in the chalcedon checkerspot,Euphydryas chalcedona(Lepidoptera: Nymphalidae)

1987 ◽  
Vol 21 (5) ◽  
pp. 1109-1117 ◽  
Author(s):  
Ronald L. Rutowski ◽  
George W. Gilchrist
Keyword(s):  
Euphydryas Chalcedona

The coevolution of Euphydryas chalcedona butterflies and their larval host plants

Oecologia ◽  
1983 ◽  
Vol 56 (2-3) ◽  
pp. 330-335 ◽  
Author(s):  
K. S. Williams ◽  
D. E. Lincoln ◽  
P. R. Ehrlich
Keyword(s):  
Host Plants ◽  
Larval Host ◽  
Larval Host Plants ◽  
Euphydryas Chalcedona

Nectar source distribution as a determinant of oviposition host species in Euphydryas chalcedona

Oecologia ◽  
1984 ◽  
Vol 62 (2) ◽  
pp. 269-271 ◽  
Author(s):  
Dennis D. Murphy ◽  
Marian S. Menninger ◽  
Paul R. Ehrlich
Keyword(s):  
Host Species ◽  
Source Distribution ◽  
Nectar Source ◽  
Euphydryas Chalcedona

scholarly journals The Structure of the Mating Plug in the Checkerspot Butterfly, Euphydryas Chalcedona

1989 ◽  
Vol 96 (3-4) ◽  
pp. 279-285 ◽  
Author(s):  
Ronald L. Rutowski ◽  
Janis L. Dickinson ◽  
Barbara Terkanian
Keyword(s):  
Mating Plug ◽  
Euphydryas Chalcedona

A NEW RACE OF EUPHYDRYAS CHALCEDONA DBLDY. & HEW. FROM ARIZONA. (RHOPALOCERA-NYMPHALIDAE)

1938 ◽  
Vol 70 (10) ◽  
pp. 199-200
Author(s):  
Cyril F. Dos Passos
Keyword(s):  
West Coast ◽  
New Race ◽  
Euphydryas Chalcedona

For several years correspondents in Arizona and California have been sending out an Euphydryas taken at various localities in Arizona as “hermosa” which is obviously not that species. Hermosa Wright (1905, Butts. West Coast, p. 157, No. 179) was described from southern Arizona which may account in part for the misidentification. It is figured by the author (Plate XIX figs. 179, b, c) and does not appear to be rare in collections.

The coevolution of Euphydryas chalcedona butterflies and their larval host plants

Oecologia ◽  
1983 ◽  
Vol 56 (2-3) ◽  
pp. 323-329 ◽  
Author(s):  
K. S. Williams ◽  
D. E. Lincoln ◽  
P. R. Ehrlich
Keyword(s):  
Host Plants ◽  
Larval Host ◽  
Larval Host Plants ◽  
Euphydryas Chalcedona

scholarly journals POPULATION GENETICS OF EUPHYDRYAS BUTTERFLIES. I. GENETIC VARIATION AND THE NEUTRALITY HYPOTHESIS

Genetics ◽  
1975 ◽  
Vol 81 (3) ◽  
pp. 571A-594
Author(s):  
Stephen W McKechnie ◽  
Paul R Ehrlich ◽  
Raymond R White
Keyword(s):  
Genetic Variation ◽  
Environmental Parameters ◽  
Gene Frequencies ◽  
Euphydryas Editha ◽  
Selective Agents ◽  
Two Generations ◽  
Explained Variation ◽  
The One ◽  
Almost All ◽  
Euphydryas Chalcedona

ABSTRACT Twenty-one populations of the checkerspot butterfly, Euphydryas editha, and ten populations of Euphydryas chalcedona were sampled for genetic variation at eight polymorphic enzyme loci. Both species possessed loci that were highly variable from population to population and loci that were virtually identical across all populations sampled. Our data indicate that the neutrality hypothesis is untenable for the loci studied, and therefore selection is indicated as the major factor responsible for producing these patterns. Thorough ecological work allowed gene flow to be ruled out (in almost all instances) as a factor maintaining similar gene frequencies across populations. The Lewontin-Krakauer test indicated magnitudes of heterogeneity among standardized variances of gene frequencies inconsistent with the neutrality hypothesis. The question of whether or not to correct this statistic for sample size is discussed. Observed equitability of gene frequencies of multiple allelic loci was found to be greater than that predicted under the neutrality hypothesis. Genetic differentiation presisting through two generations was found between the one pair of populations known to exchange significant numbers of individuals per generation. Two matrices of genetic distance between populations, based on the eight loci sampled, were found to be significantly correlated with a matrix of environmental distance, based on measures of fourteen environmental parameters. Correlations between gene frequencies and environmental parameters, results of multiple regression analysis, and results of principle component analysis showed strong patterns of association and of "explained" variation. The correlation analyses suggest which factors might be further investigated as proximate selective agents.

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