地球の気温上昇に最も弱い花粉媒介者はハエであるとの研究結果(Pollinators most vulnerable to rising global temperatures are flies, study shows)

2024-12-19 ペンシルベニア州立大学(PennState)

Flies play a crucial role as pollinators, second only to bees in terms of the volume of crops and habitat they pollinate. Pictured here is a blue fly pollinating common milkweed (Asclepias syriaca).  Credit: Martha B. Moss/Penn State Extension Master Gardener / Penn State. Creative Commons

<関連情報>

• https://www.psu.edu/news/research/story/pollinators-most-vulnerable-rising-global-temperatures-are-flies-study-shows
• https://journals.ku.edu/melittology/article/view/22505

昆虫花粉媒介者のグループとその採餌時間帯によって、臨界温度は異なる: 気候変動への対応が示唆される Critical thermal maxima differ between groups of insect pollinators and their foraging times: Implications for their responses to climate change

Margarita M López-Uribe ,Maren K. Appert ,Alonso X. Delgado ,Andrés F. Herrera-Motta ,Abigail Jimenez ,Ruben D. Martín-Rojas ,Victor M. Ramos-Abensur ,Diego A. Riaño-Jimenez ,José R. Cure ,Jose D. Fuentes ,Luis O. Duque ,Victor H. Gonzalez
Journal of Melittology  Published:11-10-2024
DOI:https://doi.org/10.17161/jom.vi122.22505

Abstract

Insects perform essential roles within ecosystems and can be vulnerable to climate change because of their small body size and limited capacity to regulate body temperature. Several groups of insects, such as bees and flies, are important pollinators of wild and cultivated plants. However, aspects of their thermal biology remain poorly studied, which limits predictions of their responses to climate change. We assessed the critical thermal maximum (CT_Max) of bees and flies visiting flowers in urban and periurban areas in tropical and subtropical regions of the Americas. We also assessed the effect of the foraging time of the day on CT_Max. Overall, we found that bees displayed higher CT_Max than flies. Flies foraging in the morning and afternoon displayed similar CT_Max while bees in the morning displayed a higher CT_Max than in the afternoon. The results of this study suggest differences in the vulnerability to climate change between these two major groups of pollinators, with flies being more at risk.