Opossums as opportunistic visitors of chiropterophilous flowers: Interaction between Didelphis albiventris (Marsupialia) and Hymenaea cangaceira (Fabaceae)

IF 1.6 4区 环境科学与生态学 Q3 ECOLOGY
Austral Ecology Pub Date : 2024-09-11 DOI:10.1111/aec.13587
Arthur Domingos-Melo, Sinzinando Albuquerque-Lima, Isabel C. Machado, Paulo Milet-Pinheiro
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引用次数: 0

Abstract

Bat-pollinated plants feature open flowers, facilitating easy access to their abundant nectar for various animal groups. The Caatinga, a Brazilian Seasonally Tropical Dry Forest, stands out globally as a hotspot for bat-pollinated plants. This study presents the first documentation of the opossum Didelphis albiventris (Marsupialia) engaging in the consumption of nectar on flowers of Hymenaea cangaceira (Fabaceae), a bat-pollinated tree species within the Caatinga. The observation spanned five nights and occurred unexpectedly during an experiment involving bagged flowers to assess nectar dynamics. Initially, torn bags were discovered containing flowers, which nectar had been consumed. Subsequent nights revealed the opossum actively exploring bagged flowers, likely guided by the fragrant nectar of H. cangaceira, and unmanipulated flowers located in the canopy's upper reaches. Given the opossum's contact with reproductive structures during these visits, it emerges as a potential pollinator. Following this observation, a comprehensive literature review on Didelphis interactions with other plants was conducted, leading to the construction of a meta network. This network unequivocally illustrates that the majority of plants visited by Didelphis indeed have bats as their primary pollinators. Owing to the nocturnal, arboreal and stealthy nature of opossums, documenting their interactions with flowers proves highly challenging. Consequently, our record highlights significant knowledge gaps in comprehending the interplay between opossums and chiropterophilous flowers. These gaps include the under-sampling of this process in the Caatinga, the role of olfactory signalling and the broader consequences of this unique interaction.

负鼠是嗜螭花的机会性访客:有袋类动物(Didelphis albiventris)与豆科植物(Hymenaea cangaceira)之间的相互作用
蝙蝠授粉植物的特点是花朵开放,便于各种动物群体获取丰富的花蜜。巴西季节性热带干旱森林卡廷加是全球蝙蝠授粉植物的热点地区。本研究首次记录了负鼠 Didelphis albiventris(有袋目)在卡廷加地区蝙蝠授粉树种 Hymenaea cangaceira(豆科)花朵上采蜜的情况。这次观察共持续了五个晚上,是在一次评估花蜜动态的袋装花实验中意外发现的。最初发现的是被撕破的花袋,里面的花蜜已被吃掉。随后的几个晚上,负鼠在袋装花和位于树冠上层的未经处理的花朵中积极探索,很可能是受到了 H. cangaceira 芳香花蜜的引导。鉴于负鼠在这些探访过程中会接触到生殖结构,因此它有可能成为授粉者。根据这一观察结果,我们对负鼠与其他植物的相互作用进行了全面的文献综述,从而构建了一个元网络。这个网络清楚地表明,蝙蝠拜访的大多数植物确实以蝙蝠为主要授粉者。由于负鼠具有夜行性、树栖性和隐蔽性,记录它们与花卉的互动极具挑战性。因此,我们的记录凸显了在理解负鼠与嗜螭花卉之间相互作用方面存在的重大知识空白。这些差距包括在卡廷加地区对这一过程的取样不足、嗅觉信号的作用以及这种独特互动的更广泛后果。
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来源期刊
Austral Ecology
Austral Ecology 环境科学-生态学
CiteScore
2.90
自引率
6.70%
发文量
117
审稿时长
12-24 weeks
期刊介绍: Austral Ecology is the premier journal for basic and applied ecology in the Southern Hemisphere. As the official Journal of The Ecological Society of Australia (ESA), Austral Ecology addresses the commonality between ecosystems in Australia and many parts of southern Africa, South America, New Zealand and Oceania. For example many species in the unique biotas of these regions share common Gondwana ancestors. ESA''s aim is to publish innovative research to encourage the sharing of information and experiences that enrich the understanding of the ecology of the Southern Hemisphere. Austral Ecology involves an editorial board with representatives from Australia, South Africa, New Zealand, Brazil and Argentina. These representatives provide expert opinions, access to qualified reviewers and act as a focus for attracting a wide range of contributions from countries across the region. Austral Ecology publishes original papers describing experimental, observational or theoretical studies on terrestrial, marine or freshwater systems, which are considered without taxonomic bias. Special thematic issues are published regularly, including symposia on the ecology of estuaries and soft sediment habitats, freshwater systems and coral reef fish.
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