Botanical origin and seasonal variation in pollen collected by Tetragonisca weyrauchi (Apidae: Meliponini) in an urban area of Rio Branco, State of Acre, Brazil

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2023-02-15 DOI:10.1080/01916122.2023.2180100

Marcos Gonçalves Ferreira, Francisco Cildomar da Silva Correia, R. C. Peruquetti, F. R. C. Silva

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Abstract

Abstract The botanical origin and seasonal variation of pollen collected by Tetragonisca weyrauchi were studied by means of palynology (pollen identification). The study was carried out between August 2016 and July 2017 with a hive introduced in a house garden in an urban area (09° 56′ 38.7″ S; 67° 52′ 42.9″ W) near the campus of the Federal University of Acre (UFAC). In total, we identified 87 pollen types from 31 botanical families, with the most representative ones being: Alismataceae, Amaranthaceae, Arecaceae, Boraginaceae, Cyperaceae, Euphorbiaceae, Fabaceae and Urticaceae, all displaying percentages above 10%. The pollen types Alternanthera (Amaranthaceae), Cecropia (Urticaceae) and Cordia sellowiana (Boraginaceae) obtained relative abundances above 90% and are therefore considered events of temporary specialization. The lowest diversity and evenness values were found for July (H′ = 0.127; J′ = 0.071) and August (H′ = 0.070; J′ = 0.043), and the highest values for October (H′ = 2.025; J′ = 0.715) and April (H′ = 1.941; J′ = 0.611), thus not suggesting relationships with the rainy (November–April) or dry (May–October) periods. Furthermore, there was no preference by the bees for morphological characteristics of the pollen such as size, exine texture or aperture number. However, the most representative grains are among the small and medium size, reinforcing the hypothesis that this bee species prefers small flowers available in dense inflorescences.

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巴西阿卡州巴布兰科市区采得的四爪蝇花粉的植物来源和季节变化

摘要采用孢粉学（花粉鉴定）方法，对温氏拮抗剂采集的花粉的植物学来源和季节变化进行了研究。这项研究于2016年8月至2017年7月进行，在联邦阿克里大学（UFAC）校园附近的城市地区（09°56′38.7〃S；67°52′42.9〃W）的一个住宅花园中引入了一个蜂巢。我们总共鉴定了31个植物科的87种花粉类型，其中最具代表性的是：泽泻科、苋科、槟榔科、紫草科、莎草科、大戟科、蚕豆科和荨麻科，它们的比例都在10%以上。花粉类型Alternathera（苋科）、Cecropia（荨麻科）和Cordia sellowiana（紫草科）的相对丰度超过90%，因此被认为是暂时特化事件。多样性和均匀度值最低的是七月（H′=0.127；J′=0.071）和八月（H′=0.070；J′0.043），最高的是十月（H′=2.025；J′=0.715）和四月（H′=1.941；J′0.611），因此与雨季（11月至4月）或旱季（5月至10月）无关。此外，蜜蜂对花粉的形态特征（如大小、外壁结构或孔径数）没有偏好。然而，最具代表性的颗粒是中小型，这强化了这种蜜蜂更喜欢密集花序中的小花的假设。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.