Presence after three decades of red wood ants (Formica rufa group; Hymenoptera: Formicidae) in forests in an agricultural landscape

IF 1.3 3区 农林科学 Q2 Agricultural and Biological Sciences
Harry J.M. VAN BUGGENUM
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引用次数: 4

Abstract

Conducting a repeat study of the presence of mound-building red wood ants (Formica rufa group) after a period of 30 years has rarely been done in Europe. From 1990 to 2020 such a study was done in an intensively used agricultural landscape with fragments of forest in the South-Eastern part of The Netherlands. In 1990, 280 nest mounds of three species of red wood ants and a hybrid were found in the forests and along forest edges. The highest occupancy was in forests of > 25 ha. The connectivity between the forest fragments mainly determined their presence. In 2020, only 160 nest mounds were found. The development of the colonies differed for Formica polyctena Förster, 1850 (slight decrease), F. rufa Linnaeus, 1761 (substantial increase) and F. pratensis Retzius, 1783 (strong decrease). The differences between the species in this highly fragmented landscape may be due to differences in their colonization strategies of either nest splitting or producing swarms of young queens. Furthermore, the analyses show that the type of environment (in a forest or along a forest edge) determines the probability of extinction or settlement. There is a need to undertake management measures to prevent the extinction of species of red wood ants in the area studied. These measures include creating small clearings in dense forests, reducing shading due to overgrowing shrubs or herbaceous plants, and creating buffer zones around intensively manured fi elds. More long-term monitoring is needed in Europe to compare the circumstances in different regions, detect trends and evaluate the effects of protection measures.
存在三十年后的红木蚁(红木蚁群;膜翅目:蚁科)在森林中的农业景观
欧洲很少在30年后对红木蚁(红木蚁群)的存在进行重复研究。从1990年到2020年,在荷兰东南部一个被密集利用的农业景观和森林碎片中进行了这样的研究。1990年,在森林和森林边缘发现了三种红木蚁和一种杂交蚁的280个巢丘。最高的占用率是在bb25公顷的森林。森林碎片之间的连通性主要决定了它们的存在。到2020年,只发现了160个巢丘。聚虫Förster(1850年)、rufa Linnaeus(1761年)和F. pratensis Retzius(1783年)在种群发育上存在差异。在这片高度破碎的土地上,物种之间的差异可能是由于它们的殖民策略不同,要么是分裂巢穴,要么是产生一群年轻的蚁后。此外,分析表明,环境类型(在森林中或沿着森林边缘)决定了灭绝或定居的可能性。有必要采取管理措施,防止所研究地区红木蚁的灭绝。这些措施包括在茂密的森林中开辟小块空地,减少由于灌木或草本植物过度生长而造成的遮阳,并在密集施肥的农田周围建立缓冲区。欧洲需要进行更长期的监测,以比较不同区域的情况,发现趋势并评价保护措施的效果。
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来源期刊
CiteScore
2.30
自引率
7.70%
发文量
43
审稿时长
6-12 weeks
期刊介绍: EJE publishes original articles, reviews and points of view on all aspects of entomology. There are no restrictions on geographic region or taxon (Myriapoda, Chelicerata and terrestrial Crustacea included). Comprehensive studies and comparative/experimental approaches are preferred and the following types of manuscripts will usually be declined: - Descriptive alpha-taxonomic studies unless the paper is markedly comprehensive/revisional taxonomically or regionally, and/or significantly improves our knowledge of comparative morphology, relationships or biogeography of the higher taxon concerned; - Other purely or predominantly descriptive or enumerative papers [such as (ultra)structural and functional details, life tables, host records, distributional records and faunistic surveys, compiled checklists, etc.] unless they are exceptionally comprehensive or concern data or taxa of particular entomological (e.g., phylogenetic) interest; - Papers evaluating the effect of chemicals (including pesticides, plant extracts, attractants or repellents, etc.), irradiation, pathogens, or dealing with other data of predominantly agro-economic impact without general entomological relevance.
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