离巢距离和气候解释了收割蚁食物资源利用的地理趋势:多物种方法

IF 3.4 2区 环境科学与生态学 Q2 ECOLOGY
Diego Anjos, Pedro Luna, Kleber Del‐Claro, Rodrigo G. Pol, Javier Lopez de Casenave, Helena Maura Torezan‐Silingardi, Martha L. Baena, Florencia Baudino, Judie Bronstein, Melissa Burt, Eduardo Calixto, Ana Laura Cao, Flávio Siqueira de Castro, Blaine J. Cole, Luciana Elizalde, Federico Escobar, Rodrigo Machado Feitosa, Jaime Hernández Flores, Philip Hahn, Maria Eduarda Indalêncio, Brenda Juárez‐Juárez, Alex Karnish, Natalia Ladino, María Natalia Lescano, Frederico de Siqueira Neves, Daniela Ortiz, Gibran Pérez, José Pezzonia, Gabriela Pirk, Gabriela Porto, Carlos Ramírez, Julian Resasco, Adriana Aranda‐Rickert, Ian Robertson, Robin Verble, Lucía Vullo, Diane Wiernasz, Victoria Werenkraut, Roger Guevara, Wesley Dáttilo
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引用次数: 0

摘要

主要动物不仅觅食附近丰富的资源,而且它们的饮食也会受到非生物因素和地理因素的影响。这往往会导致物种间的非随机互动。我们研究了种子密度、与巢穴的距离、非生物因素(如气候稳定性、温度、降水)和地理因素(如纬度、海拔和大陆半球)如何影响食物(如种子和节肢动物尸体)的清除、方法通过标准化实验,我们在美洲大陆的 16 个地点对 8 种 Pogonomyrmex 属的 160 个蚁巢进行了种子移除实验,并对蚁工所获取的食物进行了评估。结果原产于北美洲的 Pogonomyrmex 蚂蚁比南美洲的蚂蚁移除了更多的种子。总的来说,结果与最佳觅食理论一致,表明蚂蚁在蚁巢附近清除种子的概率较高。气候的高度稳定性与较低的种子捕食率相关,强调了种子消耗在历史上干旱环境中的重要性。降水量和温度的增加导致食物资源的清除率降低,这表明水供应的减少和平均气温的降低增加了收割蚁对种子的消耗。这项研究强调了收割蚁在大空间范围内对植物分布的潜在影响,它们消耗巢穴附近的种子并阻止植物的建立。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Distance From Nest and Climate Explain Geographical Trends of Harvester Ant's Food Resource Use: A Multi‐Species Approach
MainAnimals not only forage for abundant and nearby resources, but their diets can also be influenced by abiotic and geographic factors. This often results in non‐random interactions among species. We investigate how seed density, distance from nest, abiotic (e.g., climate stability, temperature, precipitation) and geographic factors (e.g., latitude, elevation and continental hemisphere) influence the removal of food items (i.e., seeds and dead arthropods) by Pogonomyrmex species.LocationSouth and North America, from Patagonia to the Rocky Mountains.TaxonGenus Pogonomyrmex (Formicidae: Hymenoptera).MethodsConducting standardised experiments, we performed a seed removal experiment and an assessment of the items retrieved by ant workers of 160 nests from eight Pogonomyrmex spp. at 16 sites extending the American continent.ResultsPogonomyrmex ants native to North America removed more seeds than their South American counterpart. In general, results align with optimal foraging theory, indicating a higher probability of seed removal near ant nests. High climate stability correlated with lower seed predation rates, emphasising seed consumption's significance in historically arid environments. Increased precipitation and temperature led to reduced removal of food resources, suggesting reduced water availability and lower mean temperatures increases the consumption of seeds by harvester ants.ConclusionsOverall, Pogonomyrmex ants' food resource use is influenced by a combination of factors such as region, distance from the nest and climate. This study underscores harvester ants' potential impact on plant distribution over large spatial scales consuming seeds from the immediate proximity of their nest and preventing establishment.
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来源期刊
Journal of Biogeography
Journal of Biogeography 环境科学-生态学
CiteScore
7.70
自引率
5.10%
发文量
203
审稿时长
2.2 months
期刊介绍: Papers dealing with all aspects of spatial, ecological and historical biogeography are considered for publication in Journal of Biogeography. The mission of the journal is to contribute to the growth and societal relevance of the discipline of biogeography through its role in the dissemination of biogeographical research.
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