Comunidade de abelhas (Hymenoptera, Apidae) e plantas associadas em área de mata atlântica em São Francisco do Sul, Santa Catarina, Brasil

Mouga, Denise Monique Dubet da Silva; Nogueira-Neto, Paulo; Warkentin, Manuel; Feretti, Vanessa; Dec, Enderlei

doi:10.21726/abc.v2i1.195

Cited by 14 publications

(28 citation statements)

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“…The Apidae family presented the highest abundance in this study. This was expected, as commonly documented in apicultural surveys in different regions and/or ecosystems of the Brazilian territory, such as dunes (Oliveira et al, 2010;Gostinski et al, 2016), restinga (Madeira-da-Silva & Martins 2003Kamke et al, 2011), Caatinga (Lopes et al, 2010), the Amazon (Albuquerque et al, 2001), and Atlantic Forest (Mouga et al, 2015, Somavilla et al, 2018.…”

Section: Discussionsupporting

confidence: 63%

Bees from an Island in the Delta of the Americas (Maranhão state, Brazil) and their Floristic Interactions

et al. 2021

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Surveys of the bee fauna on islands are scarce due to the difficult access to the study area. Thus, the current study intended to establish the species of bees present in an island of the Delta of the Americas, called Grande do Paulino, Tutóia, Maranhão. Together with the bees, the plants visited by these insects were recorded, in order to document the relationships between these organisms. Between July 2017 and June 2018, once a month, 1,095 individuals, distributed in 16 tribes, 30 genera, and 48 species, were collected with active (entomological net) and passive (bowl traps) sampling methods. Data from plants and their visiting bees are presented in an interaction network in the form of a bipartite graph, showing Xylocopa cearensis as the most collected bee species, and Chamaecrista ramosa as the most visited plant by bees. In addition to providing information about the bee fauna of the state of Maranhão and, consequently, from the Brazilian northeast, this study explores the apifauna of a place never before explored and, because it is an island, of difficult access, also providing information about the floristic interactions of these insects.

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Section: Discussionsupporting

confidence: 63%

Bees from an Island in the Delta of the Americas (Maranhão state, Brazil) and their Floristic Interactions

et al. 2021

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“…For the other species of bees identified as specialists, there are no published studies on their mutualistic interactions patterns, demonstrating the important knowledge gap. Available data are limited to the degree of rarity, record and frequency of occurrence (Schlindwein, 1998;Imperatriz-Fonseca et al, 2011;Boff et al, 2013;Mouga et al, 2015;Gostinski et al, 2016). It is also noteworthy that most of the specialist species emphasized here exhibit non-eusocial behavior, for which there are little data available in the literature and/or an expressive taxonomic impediment, especially for species in the Halictidae family (16 out of the 34 specialist species belong to this family).…”

Section: Specialist Bees In the Interaction Networkmentioning

confidence: 92%

Specialist Bee Species Are Larger and Less Phylogenetically Distinct Than Generalists in Tropical Plant–Bee Interaction Networks

et al. 2021

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Bee pollinators are key components of terrestrial ecosystems. Evidence is mounting that bees are globally in decline, and species with a higher degree of specialization are the most vulnerable to local extinction. However, ecological features that could explain bee specialization remain poorly tested, especially in tropical species. Here, we aim to determine the most specialized bee species and their associated ecological traits in tropical plant–bee interaction networks, answering three questions: (1) Which bees in the interaction networks are specialists? (2) Is body size related to their role as specialists in interaction networks? (3) Are there phylogenetic relationships between the bee species identified as specialists? We used fifteen quantitative plant–bee interaction networks from different Brazilian biomes covering 1,702 interactions (386 bee and 717 plant species). We used the normalized degree (standardized number of partners) as a metric to determine trophic specialization of bee species. Body size was estimated by measuring intertegular distance (ITD), i.e., the distance between the bases of the wings on the thorax. Evolutionary distinctiveness (ED) was used to quantify species uniqueness, i.e., the singularity of species in the phylogenetic tree. Relationships between dietary specialism, ITD and ED were assessed using generalized linear models. We detected 34 specialist bee species (9% of total species), distributed in 13 genera, and four families. ITD and ED were important variables explaining the specialization of tropical bee species. Specialists were larger and less phylogenetically distinct than expected by chance. Based on a large data set covering some of the main tropical biomes, our results suggest that loss of specialist bees from Brazilian plant–bee networks could have deleterious consequences for native plant species preferentially pollinated by large-bodied bees. Moreover, by affecting more evolutionarily distinct species, i.e., those with fewer extant relatives, the loss of specialist bees will likely affect few clades but can result on considerable loss of evolutionary history and phylogenetic diversity in the Brazilian bee communities. The results are important for decision-making concerning conservation measures for these species and may also encourage the development of sustainable management techniques for bees.

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“…Overall, there was a trend of both plant and bee species to take generalist roles with the reduction of the forest cover. For instance, the most generalist bees in networks were small and short-tongued, recognized as generalists in the use of their environments and floral resources (Michener 2007;Castro 2002;Mouga et al 2015). In the studied landscapes, bee species tended to vary their behavior, playing a more specialist role and visiting one or two plant species in landscapes with more forest, but acting as a generalist visiting more plant species in landscapes with less forest (Fig.…”

Section: Discussionmentioning

confidence: 94%

Forest and connectivity loss simplify tropical pollination networks

et al. 2020

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Mutualistic interactions between plants and pollinators play an essential role in the organization and persistence of biodiversity. The structure of interaction networks mediates the resilience of local communities and ecosystem functioning to environmental changes. Hence, network structure conservation may be more critical for maintaining biodiversity and ecological services than the preservation of isolated species in changing landscapes. Here, we intensively surveyed seven 36 km 2 landscapes to empirically investigate the effects of forest loss and landscape configuration on the structure of plantpollinator networks in understory vegetation of Brazilian Atlantic Forest. Our results indicate that forest loss and isolation affect the structure of the plant-pollinator networks, which were smaller in deforested landscapes, and less specialized as patch isolation increased. Lower nestedness and degree of specialization (Hʹ 2 ) indicated that the remaining plant and bee species tend to be generalists, and many of the expected specialized interactions in the network were already lost. Because generalist species generate a cohesive interaction core in these networks, these simplified networks might be resistant to loss of peripheral species, but may be susceptible to the extinction of the most generalist species. We suggest that such a network pattern is an outcome of landscapes with a few remaining isolated patches of natural habitat. Our results add a new perspective to studies of plant-pollinator networks in fragmented landscapes, showing that those interaction networks might also be used to indicate how changes in natural habitat affect biodiversity and biotic interactions.

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Comunidade de abelhas (Hymenoptera, Apidae) e plantas associadas em área de mata atlântica em São Francisco do Sul, Santa Catarina, Brasil

Cited by 14 publications

References 0 publications

Bees from an Island in the Delta of the Americas (Maranhão state, Brazil) and their Floristic Interactions

Bees from an Island in the Delta of the Americas (Maranhão state, Brazil) and their Floristic Interactions

Specialist Bee Species Are Larger and Less Phylogenetically Distinct Than Generalists in Tropical Plant–Bee Interaction Networks

Forest and connectivity loss simplify tropical pollination networks

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