@article{9db4801ba841433fb9f95ab1025728c3,
title = "Field bands of marching locust juveniles show carbohydrate, not protein, limitation",
abstract = "Locusts are grasshoppers that migrate en masse and devastate food security, yet little is known about the nutritional needs of marching bands in nature. While it has been hypothesized that protein limitation promotes locust marching behavior, migration is fueled by dietary carbohydrates. We studied South American Locust (Schistocerca cancellata) bands at eight sites across Argentina, Bolivia, and Paraguay. Bands ate most frequently from dishes containing carbohydrate artificial diets and minimally from balanced, protein, or control (vitamins and salts) dishes—indicating carbohydrate hunger. This hunger for carbohydrates is likely explained by the observation that local vegetation was generally protein-biased relative to locusts{\textquoteright} preferred protein to carbohydrate ratio. This study highlights the importance of studying the nutritional ecology of animals in their environment and suggests that carbohydrate limitation may be a common pattern for migrating insect herbivores.",
keywords = "Collective movement, Grasshopper, Locust phase change, Migration, Movement ecology, Nutrition, Orthoptera, Swarming",
author = "Cease, {Arianne J.} and Trumper, {Eduardo V.} and H{\'e}ctor Medina and Baz{\'a}n, {Fernando Copa} and Jorge Frana and Jon Harrison and Nelson Joaquin and Jennifer Learned and M{\'o}nica Roca and Rojas, {Julio E.} and Stav Talal and Overson, {Rick P.}",
note = "Funding Information: Thanks to Carlos Maldonado, Luis Sanchez Shimura, Geordana Zeballos C{\'e}spedes, Alberto Guti{\'e}rrez, Wilda Ram{\'i}rez, Marcelino L{\'o}pez Rend{\'o}n, and Jacob P. Youngblood, as well as SENASA and INTA (Argentina), SENASAG, INIAF, and CIAT (Bolivia), and SENAVE (Paraguay) for generous field support; Marion Le Gall, Natalia Thompson, Ruth Farington, and Douglas Lawton for assistance with the lab studies; and Mira Ries, Greg Sword, Stephen Simpson, and several anonymous reviewers for helpful comments on the manuscript. We thank the communities in the provinces of Catamarca and La Rioja in Argentina, the departments of Santa Cruz and Chuquisaca in Bolivia, and the departments of Presidente Hayes and Boquer{\'o}n in Paraguay for welcoming researchers into their communities and sharing details of their locust experiences. In the US, the authors recognize that the ASU campus community has and continues to benefit from land that was taken from Indigenous communities, including the Akimel O'odham (Pima) and Pee Posh (Maricopa) Indian Communities, whose stewardship of these lands allows us to be here today. This work was funded by the National Science Foundation, United States [RAPID-1826848, DBI-2021795, and IOS-1942054], and US-Israel Binational Agricultural Research and Development fund [BARD FI-575-2018]. This work was a project by the Global Locust Initiative Laboratory (Arizona State University) and the NSF Behavioral Plasticity Research Institute. Funding Information: Thanks to Carlos Maldonado, Luis Sanchez Shimura, Geordana Zeballos C{\'e}spedes, Alberto Guti{\'e}rrez, Wilda Ram{\'i}rez, Marcelino L{\'o}pez Rend{\'o}n, and Jacob P. Youngblood, as well as SENASA and INTA (Argentina), SENASAG, INIAF, and CIAT (Bolivia), and SENAVE (Paraguay) for generous field support; Marion Le Gall, Natalia Thompson, Ruth Farington, and Douglas Lawton for assistance with the lab studies; and Mira Ries, Greg Sword, Stephen Simpson, and several anonymous reviewers for helpful comments on the manuscript. We thank the communities in the provinces of Catamarca and La Rioja in Argentina, the departments of Santa Cruz and Chuquisaca in Bolivia, and the departments of Presidente Hayes and Boquer{\'o}n in Paraguay for welcoming researchers into their communities and sharing details of their locust experiences. In the US, the authors recognize that the ASU campus community has and continues to benefit from land that was taken from Indigenous communities, including the Akimel O'odham (Pima) and Pee Posh (Maricopa) Indian Communities, whose stewardship of these lands allows us to be here today. This work was funded by the National Science Foundation , United States [ RAPID-1826848 , DBI-2021795 , and IOS-1942054 ], and US-Israel Binational Agricultural Research and Development fund [ BARD FI-575-2018 ]. This work was a project by the Global Locust Initiative Laboratory (Arizona State University) and the NSF Behavioral Plasticity Research Institute . Publisher Copyright: {\textcopyright} 2023 The Authors",
year = "2023",
month = jan,
doi = "10.1016/j.cris.2023.100069",
language = "English (US)",
volume = "4",
journal = "Current Research in Insect Science",
issn = "2666-5158",
publisher = "Elsevier BV",
}