Grasshopper outbreak challenges conservation status of a small Hawaiian Island

Latchininsky, Alexandre V.

doi:10.1007/978-1-4020-8782-0_13

Cited by 3 publications

(3 citation statements)

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“…Locust outbreaks are often international, transboundary, and mobile. The damage caused by locusts results in economic losses for the agriculture and livestock industries, accelerates the rapid loss of vegetation cover, and disrupts the balance of grassland ecosystems [ 1 , 2 ]. The Italian locust (( Calliptamus italicus (Linnaeus, 1758)), Asian migratory locust ( Locusta migratoria migratoria Linnaeus, 1758), and Siberian locust (( Gomphocerus sibiricus (Linnaeus, 1767)) are common pests in steppe, desert, and semidesert regions with long-distance migratory characteristics.…”

Section: Introductionmentioning

confidence: 99%

Predictions Based on Different Climate Change Scenarios: The Habitat of Typical Locust Species Is Shrinking in Kazakhstan and Xinjiang, China

Guan

et al. 2022

Insects

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Climate change, especially climate extremes, can increase the uncertainty of locust outbreaks. The Italian locust (Calliptamus italicus (Linnaeus, 1758)), Asian migratory locust (Locusta migratoria migratoria Linnaeus, 1758), and Siberian locust (Gomphocerus sibiricus (Linnaeus, 1767)) are common pests widely distributed in the semidesert grasslands of Central Asia and its surrounding regions. Predicting the geographic distribution changes and future habitats of locusts in the context of climate warming is essential to effectively prevent large and sudden locust outbreaks. In this study, the optimized maximum entropy (MaxEnt) model, employing a combination of climatic, soil, and topographic factors, was used to predict the potential fitness areas of typical locusts in the 2030s and 2050s, assuming four shared socioeconomic pathways (SSP126, SSP245, SSP370, and SSP585) in the CMIP6 model. Modeling results showed that the mean area under the curve (AUC) and true statistical skill (TSS) of the MaxEnt model reached 0.933 and 0.7651, respectively, indicating that the model exhibited good prediction performance. Our results showed that soil surface sand content, slope, mean precipitation during the hottest season, and precipitation seasonality were the key environmental variables affecting locust distribution in the region. The three locust species were mainly distributed in the upstream region of the Irtysh River, the Alatao Mountain region, the northern slopes of the Tianshan Mountains, around Sayram Lake, the eastern part of the Alakol Lake region, the Tekes River region, the western part of Ulungur Lake, the Ili River, and the upstream region of the Tarim River. According to several climate projections, the area of potential habitat for the three most common locust species will decrease by 3.9 × 104–4.6 × 104 km2 by the 2030s and by 6.4 × 104–10.6 × 104 km2 by the 2050s. As the climate becomes more extreme, the suitable area will shrink, but the highly suitable area will expand; thus, the risk of infestation should be taken seriously. Our study present a timely investigation to add to extensive literature currently appearing regarding the myriad ways climate change may affect species. While this naturally details a limited range of taxa, methods and potential impacts may be more broadly applicable to other locust species.

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Section: Introductionmentioning

confidence: 99%

Predictions Based on Different Climate Change Scenarios: The Habitat of Typical Locust Species Is Shrinking in Kazakhstan and Xinjiang, China

Guan

et al. 2022

Insects

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“…Los efectos ambientales causados por los picos poblacionales de herbívoros generalistas pueden ser particularmente drásticos en las islas, en donde los procesos de recolonización de la vegetación están limitados y en donde desequilibrios en los mecanismos de regulación poblacional pueden resultar en la extinción local de especies (Kaiser-Bunbury et al, 2010;Latchininsky, 2008;Smith-Ramírez et al, 2017).…”

Section: Introductionunclassified

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

et al. 2022

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Las islas mexicanas representan un reservorio de biodiversidad importante que se encuentra amenazado por el cambio global. En épocas recientes, la isla Socorro, archipiélago Revillagigedo ha experimentado importantes pertubaciones tales como brotes poblacionales de la langosta centroamericana (Schistocerca piceifrons). En este estudio se evaluó la abundancia poblacional de la langosta en la isla Socorro y su efecto sobre la vegetación nativa, además, se exploró la relación de la abundancia anual histórica con variables climáticas. Se realizaron muestreos de S. piceifrons en 25 parajes con diferentes tipos de vegetación, en la temporada de lluvias y secas de 2018. También se evaluó el daño por herbívoros sobre las especies de plantas comunes. No se observaron mangas de S. piceifrons y las langostas fueron más abundantes en lluvias. Los niveles de herbivoría fueron bajos (< 7%). Se detectó que la abundancia de langostas se asocia con años en los cuáles se presentan temperaturas moderadas y alta humedad atmosférica. Debido a que en años anteriores se ha reportado una población numerosa de S. piceifrons, se recomienda monitorear periódicamente su abundancia; sin embargo, dada la situación actual, no se considera que deban llevarse a cabo acciones de control sobre las langostas.

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“…The rapid loss of vegetation cover may result in soil erosion and increased runoff. L&G can also destroy food sources for many animals and thus affect biodiversity; such effects may be particularly pronounced in isolated insular ecosystems [11]. Large-scale L&G control programs can also affect biodiversity, including that of nontarget grasshoppers [12].…”

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confidence: 99%