Población de langosta centroamericana (Schistocerca piceifrons) en la isla Socorro y su impacto sobre la vegetación


Por: Del-Val E., Flores-Gutiérrez A.M., Obregón-Ochoa A., Paz H.

Publicada: 1 ene 2022
Resumen:
Mexican islands are an important biodiversity reservoir that is threatened by the introduction of invasive exotic species. In recent times, Socorro island, Revillagigedo Archipelago, has experienced significant environmental disturbances including population outbreaks from the Centro American locust (Schistocerca piceifrons). Since S. piceifrons can cause significant damage on native plants, the present study evaluated the population status of S. piceifrons at Socorro island and its effect upon native vegetation. Also, we evaluated historic annual locust abundance in relation to climatic variables in the island. We sampled S. piceifrons in 25 island sites with different vegetation types, once during the dry season and once in the rainy season of 2018. We also evaluated herbivory on most common plants. We did not observe any S. piceifrons gregarious behavior and solitary locusts were more abundant during the rainy season. Herbivory levels were low (< 7%). We detected that locust abundance was associated to moderate temperature years with high atmospheric humidity. Since outbreaks have been reported previously, we recommend continuing locust monitoring, however current situation does not suggest to start any control measures on S. piceifrons populations. © 2022 Universidad Nacional Autonoma de Mexico. All rights reserved.

Filiaciones:
Del-Val E.:
 Universidad Nacional Autónoma de México, Instituto de Investigaciones en Ecosistemas y Sustentabilidad, Antigua Carretera a Pátzcuaro Núm. 8701, Col. Ex-Hacienda de San José de La Huerta, Michoacán, Morelia, 58190, Mexico

 University of California-Santa Cruz, Department of Environmental Studies, 1156 High Street, Santa Cruz, CA 95064, United States

Flores-Gutiérrez A.M.:
 Universidad Nacional Autónoma de México, Instituto de Investigaciones en Ecosistemas y Sustentabilidad, Antigua Carretera a Pátzcuaro Núm. 8701, Col. Ex-Hacienda de San José de La Huerta, Michoacán, Morelia, 58190, Mexico

Obregón-Ochoa A.:
 Universidad Nacional Autónoma de México, Centro de Investigaciones en Geografía Ambiental, Antigua Carretera a Pátzcuaro Núm. 8701, Col. Ex-Hacienda de San José de La Huerta, Michoacán, Morelia, 58190, Mexico

Paz H.:
 Universidad Nacional Autónoma de México, Instituto de Investigaciones en Ecosistemas y Sustentabilidad, Antigua Carretera a Pátzcuaro Núm. 8701, Col. Ex-Hacienda de San José de La Huerta, Michoacán, Morelia, 58190, Mexico

 University of California Berkeley, Department of Integrative Biology, Center for Stable Isotope Biogeochemistry, 3040 Valley Life Sciences Bldg., Berkeley, CA 94720-3140, United States
ISSN: 18703453
Editorial
INST BIOLOGIA, UNIV NACIONAL AUTONOMA MEXICO, APARTADO POSTAL 70-233, MEXICO, D F 00000, MEXICO, México
Tipo de documento: Article
Volumen: 93 Número:
Páginas:
WOS Id: 001130482600018
imagen gold, Gold