A revision of the American Papilios

Rothschild, Lionel Walter Rothschild; Jordan, Karl

doi:10.5962/bhl.part.22801

Cited by 64 publications

(56 citation statements)

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“…Size and wing morphology have been traditionally used to distinguish P. glaucus and P. canadensis (Rothschild and Jordan 1906), and to identify hybrid individuals (Luebke et al 1988). Likewise mtDNA RFLPs have been used as species diagnostic characters to help recognize P. glaucus and P. canadensis individuals, as well as for identifying P. glaucus introgression into P. canadensis populations .…”

Section: Introductionmentioning

confidence: 99%

Allochronic isolation and incipient hybrid speciation in tiger swallowtail butterflies

et al. 2009

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Hybridization leading to reproductively isolated, novel genotypes is poorly understood as a means of speciation and few empirical examples have been studied. In 1999, a previously non-existent delayed flight of what appeared to be the Canadian tiger swallowtail butterfly, Papilio canadensis, was observed in the Battenkill River Valley, USA. Allozyme frequencies and morphology suggest that this delayed flight was the product of hybridization between Papilio canadensis and its sibling species Papilio glaucus. The mitochondrial DNA (mtDNA) restriction fragment length polymorphisms presented here indicate that only P. canadensis-like mtDNA occurs in this population, suggesting that introgression likely occurred from hybrid males mating with P. canadensis females. Preliminary studies of this population indicated that delayed post-diapause pupal emergence in this hybrid genotype was the root cause behind the observed delayed flight, which suggests a potential empirical example of a mechanism leading to reproductive isolation. Here we provide further evidence of the role of adult pupal emergence as a reproductive barrier likely leading to reproductive isolation. In particular, we present results from pupal emergence studies using four different spring and two different winter temperature treatments. The results indicate a clear separation of adult emergences between the hybrid population and both parental species. However, our results indicate that exceptionally hot springs are likely to lead to greater potential for overlap between the local parental species, P. canadensis, and this delayed population with hybrid origins. Conversely, our results also show that warmer winters are likely to increase the temporal separation of the hybrid population and the parental species. Finally, we report recently collected evidence that this hybrid population remains morphologically distinct.

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Section: Introductionmentioning

confidence: 99%

Allochronic isolation and incipient hybrid speciation in tiger swallowtail butterflies

et al. 2009

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“…By contrast, butterfly systematists, influenced by TRINOMINAL NOMENCLATURE promoted at the turn of the 19th century (e.g. [9]) typically adopt a POLYTYPIC SPECIES concept (Box 1), and describe many local subspecies within widely distributed species. The result is that regional or global species counts of butterflies and ants are not comparable.…”

mentioning

confidence: 99%

Taxonomic inflation: its influence on macroecology and conservation

Isaac

Mallet

Mace

2004

Trends in Ecology & Evolution

708

602

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“…This zone has remained basically stable in its location and plant composition for two centuries along the boreal forest/temperate deciduous forest ecotone except for some northward movement of P. glaucus with several warm years in the 1990s (Merriam 1894;Scriber and Gage 1995). The northern distribution limits for the sex-linked dark morph female (Scriber et al 1996) P. glaucus have remained at concordant areas with other diagnostic traits (e.g., wing band morphometrics, allozymes, host use, obligate diapause) during this last century or more (Edwards 1884;Rothschild and Jordan 1906;Remington 1968;Scriber 1982Scriber , 1996a. The strong conspecific mating preferences of free-flying P. glaucus males during both 1997 and 1998 in Florida (94% and 100% of all copulations) was not surprising and such strong species recognition at distances 1,000-1,500 km south of the hybrid zone does not necessarily eliminate a role for reinforcement, since the tendency to mate with conspecifics could have spread from the center of the hybrid zone southward.…”

Section: Discussionmentioning

confidence: 98%

Field bioassays show heterospecific mating preference asymmetry between hybridizing North American Papilio butterfly species (Lepidoptera: Papilionidae)

Deering

Scriber

2002

J Ethol

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Few studies of interspecific mating preferences of naturally hybridizing species have been done in the field. Yet this is the only way potentially critical habitat-specific factors can be included in mating behavior evaluations. We conducted mate selection (male preference) studies using tethered pairs of heterospecific, size-matched virgin yellow females of Papilio glaucus and P. canadensis with free-flying male P. glaucus populations in south-central Florida, and with free-flying male P. canadensis populations in northern Michigan. Florida males clearly preferred the conspecific P. glaucus females of the pairs, as indicated by the touches/ attempted matings and by the actual copulations observed. In 1997, 66.7% of the total attempts ( n = 168) and 94.2% of all copulations ( n = 69) were with the conspecific. In 1998 the same pattern of conspecific male preference was observed, with 67.3% of the touches/attempts ( n = 49) and 100% of the copulations ( n = 30) being with the P. glaucus females. In contrast, the natural populations of P. canadensis males did not show the expected conspecific preference. In fact, with wild P. canadensis males in 1997 a very strong preference was observed for the heterospecific P. glaucus females of the pairs, accounting for 75.8% of all touches/attempted matings ( n = 483) and 81.7% of all copulations ( n = 476). The strong asymmetry in interspecific mating preferences among these hybridizing Papilio species may reflect an ancestral trait in P. glaucus females that elicits strong preference in P. canadensis males, due perhaps to previously possessed male sensory bias or "good genes" indicators in the females. However, reinforcement of reproductive isolation in or near the hybrid zone of species overlap (sympatry) cannot be ruled out.

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A revision of the American Papilios

Cited by 64 publications

References 0 publications

Allochronic isolation and incipient hybrid speciation in tiger swallowtail butterflies

Allochronic isolation and incipient hybrid speciation in tiger swallowtail butterflies

Taxonomic inflation: its influence on macroecology and conservation

Field bioassays show heterospecific mating preference asymmetry between hybridizing North American Papilio butterfly species (Lepidoptera: Papilionidae)

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