Costa Mirella Lima, Salomão Renato Portela, Rodrigues Alencar Janderson Batista, de Albuquerque Correa César Murilo, Iannuzzi Luciana
Programa de Pós-Graduação Em Biologia Animal Universidade Federal de Pernambuco Recife Brazil.
Facultad de Estudios Superiores Iztacala Universidad Nacional Autónoma de México Tlalnepantla de Baz Mexico.
Ecol Evol. 2024 Dec 23;14(12):e70766. doi: 10.1002/ece3.70766. eCollection 2024 Dec.
Resource attractiveness and preference is determinant to assess how biodiversity is structured in different ecosystems. Necrophagy is the alternative or complementary dietary habit of dung beetles, but a few studies have focused on evaluating how different carrion types attract different species. The goal of this study was to assess the effect of carrion type on attractiveness and preference of dung beetle taxonomic diversity in a region of Central Amazon. Pitfall traps baited with bovine spleen, chicken liver, and fish (freshwater sardine) were installed. Bait attractiveness was estimated through a sampling design that kept exclusively one food type in the field, while bait preference comprised a sampling design with more than one food type offered simultaneously in a concentrated area. We collected 3151 individuals from 24 dung beetle species. Bovine spleen was the most attractive bait in both food preference and food attractiveness experiments, being the only carrion type in which species demonstrated preference. Each carrion type attracted distinct dung beetle assemblages. This study demonstrates that Amazonian dung beetles prefer specific carrion types, which serves as a basis for future studies related to dung beetle diet.
资源吸引力和偏好是评估生物多样性在不同生态系统中如何构建的决定性因素。食尸性是蜣螂的替代或补充饮食习惯，但很少有研究关注评估不同类型的腐肉如何吸引不同的物种。本研究的目的是评估腐肉类型对亚马逊中部一个地区蜣螂分类多样性的吸引力和偏好的影响。安装了用牛脾脏、鸡肝和鱼（淡水沙丁鱼）作诱饵的陷阱。诱饵吸引力是通过一种抽样设计来估计的，该设计在野外只保留一种食物类型，而诱饵偏好则包括一种在集中区域同时提供多种食物类型的抽样设计。我们从24种蜣螂物种中收集了3151个个体。在食物偏好和食物吸引力实验中，牛脾脏都是最具吸引力的诱饵，是唯一一种有物种表现出偏好的腐肉类型。每种腐肉类型都吸引了不同的蜣螂组合。这项研究表明，亚马逊蜣螂更喜欢特定类型的腐肉，这为未来有关蜣螂饮食的研究奠定了基础。
