Adaptability of Yuanjiang River Valley Danaus genutia to Different Host Plants in Yunan
Jun Yao, Ting Du, Yangyang Li, Chengli Zhou, Lei Shi

TL;DR
This study identifies suitable host plants for the Danaus genutia butterfly in the Yuanjiang River Valley to aid in its conservation.
Contribution
The study provides new insights into the adaptability of Danaus genutia to specific host plants and evaluates their impact on population dynamics.
Findings
Cynanchum annularium and Cynanchum corymbosum are confirmed as suitable host plants for Danaus genutia.
Larvae feeding on C. annularium showed shorter developmental periods and higher early survival rates.
Population simulations confirmed the suitability of C. annularium and C. corymbosum for D. genutia conservation.
Abstract
This research seeks to identify the local host plants of Yuanjiang River Valley Danaus genutia and assess the suitability of various host plants for the butterfly, thereby offering a scientific basis for the conservation of its population in the region. Two documented host plants, two plants with observed larval feeding, and two additional host plants recorded for other butterfly species were selected. Based on tests of adult oviposition and larval feeding preferences, Cynanchum annularium and Cynanchum corymbosum were found to be the most appropriate host plants. These species are also found locally in Yuanjiang. An age-stage, two-sex life table was created to examine physiological indicators after the butterfly uses these host plants, and population dynamics were simulated for the next 60 days. The results confirmed that C. annularium and C. corymbosum are local host plants for D.…
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Taxonomy
TopicsEcology and Vegetation Dynamics Studies · Lepidoptera: Biology and Taxonomy · Biological Control of Invasive Species
