Fijian swallowtail butterfly Papilio schmeltzi (Papilionidae: Lepidoptera) shows clear preference–performance relationships on both native and exotic host plants

2021 ◽  
Author(s):  
Visheshni Chandra ◽  
Simon Hodge
Keyword(s):  
Host Plants ◽  
Swallowtail Butterfly ◽  
Clear Preference ◽  
Exotic Host

scholarly journals Climate change and local host availability drive the northern range boundary in the rapid northward expansion of the eastern giant swallowtail butterfly

2019 ◽  
Author(s):  
J. Keaton Wilson ◽  
Nicolas Casajus ◽  
Rebecca A. Hutchinson ◽  
Kent P. McFarland ◽  
Jeremy T. Kerr ◽  
...  
Keyword(s):  
North America ◽  
Range Expansion ◽  
Host Plants ◽  
Spatial Scales ◽  
Abiotic Factors ◽  
Mean Annual Temperature ◽  
Suitable Habitat ◽  
Distribution Models ◽  
Swallowtail Butterfly ◽  
Bioclimatic Variables

ABSTRACTAimsSpecies distributions result from both biotic and abiotic interactions across large spatial scales. The interplay of these interactions as climate changes quickly has been understudied, particularly in herbivorous insects. Here, we investigate the relative impacts these influences on the putative northern range expansion of the giant swallowtail butterfly in North America.LocationNorth America.Time period1959-2018.Major taxa studiedEastern Giant swallowtail, Papilio cresphontes (Lepidoptera: Papilionidae); common hop tree, Ptelea trifoliata; common prickly ash, Zanthoxylum americanum; southern prickly ash, Zanthoxylum clava-herculis (Saphidales: Rutaceae).MethodsWe used data from museum collections and citizen science repositories to generate species distribution models. Distribution models were built for each species over two time periods (T1 = 1959-1999; T2 = 2000-2018).ResultsModels for P. cresphontes and associated host plants had high predictive accuracy on spatially-explicit test data (AUC 0.810-0.996). Occurrence data align with model outputs, providing strong evidence for a northward range expansion in the last 19 years (T2) by P. cresphontes. Host plants have shifted in more complex ways, and result in a change in suitable habitat for P. cresphontes in its historic range. P. cresphontes has a northern range which now closely aligns with its most northern host plant - continued expansion northward is unlikely, and historic northern range limits were likely determined by abiotic, not biotic, factors.Main conclusionsBiotic and abiotic factors have driven the rapid northern range expansion in the giant swallowtail butterfly across North America in the last 20 years. A number of bioclimatic variables are correlated with this expansion, notably an increase in mean annual temperature and minimum winter temperature. We predict a slowing of northward range expansion in the next 20-50 years as butterflies are now limited by the range of host plants, rather than abiotic factors.

scholarly journals Contrasting Effects of Land Use Intensity and Exotic Host Plants on the Specialization of Interactions in Plant-Herbivore Networks

PLoS ONE ◽  
2015 ◽  
Vol 10 (1) ◽  
pp. e0115606 ◽  
Author(s):  
Walter Santos de Araújo ◽  
Marcos Costa Vieira ◽  
Thomas M. Lewinsohn ◽  
Mário Almeida-Neto
Keyword(s):  
Land Use ◽  
Host Plants ◽  
Land Use Intensity ◽  
Plant Herbivore ◽  
Effects Of Land Use ◽  
Exotic Host
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