Pierid Butterflies, Legume Hostplants, and Parasitoids in Urban Areas of Southern Florida

Autor: Suzanne Koptur, Andrea Salas Primoli, Hipólito Ferreira Paulino-Neto, James Whitfield
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Insects, Vol 15, Iss 2, p 123 (2024)
Druh dokumentu: article
ISSN: 2075-4450
DOI: 10.3390/insects15020123
Popis: Are parasitoids less likely to find their Lepidoptera hosts on non-native hostplants than native hostplants? We predicted that with longer periods of coevolution between herbivores and the plants they consume, the parasitoids that provide top-down control would be more attuned to finding their hosts on native plants. To test this hypothesis, we collected immature stages of sulfur butterflies (the cloudless sulfur (Phoebis sennae) and the orange-barred sulfur (Phoebis agarithe) over a three-year period (2008–2011) from native and ornamental hostplants in the genus Senna in three different parts of the urban landscape of Miami, Florida, USA. We reared the immature specimens to pupation and either eclosion of adults or emergence of parasitoids and compared the levels of parasitization among the three areas, and among native vs. exotic hostplants. We found, contrary to our prediction, that caterpillars feeding on non-native leguminous hostplant species were more likely to be parasitized than those feeding on native hostplants. We discuss this surprising finding in the light of recent findings in other plant/herbivore/parasitoid systems.
Databáze: Directory of Open Access Journals
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