Green patches among a grey patchwork: the importance of preserving natural habitats to harbour cavity-nesting bees and wasps (Hymenoptera) and their natural enemies in urban areas

Rocha-Filho, Léo Correia da; Montagnana, Paula Carolina; Bôscolo, Danilo; Garófalo, Carlos Alberto

doi:10.1007/s10531-020-01985-9

Cited by 24 publications

(20 citation statements)

References 83 publications

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“…Agricultural expansion is the largest contributor to landscape simplification worldwide [3,4]. Simplified landscapes provide less resource diversity, niches, and species diversity than complex landscapes such as forests [2,5,6]. Landscape simplification is known to alter the abundance and diversity of many taxonomic groups, including birds [7], mammals [8], and invertebrates such as bees and wasps [9].…”

Section: Introductionmentioning

confidence: 99%

Landscape Simplification Modifies Trap-Nesting Bee and Wasp Communities in the Subtropics

Wilson

Leonhardt

Burwell

et al. 2020

Insects

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(1) Background: Landscape simplification is a major threat to bee and wasp conservation in the tropics, but reliable, long-term population data are lacking. We investigated how community composition, diversity, and abundance of tropical solitary bees and wasps change with landscape simplification (plant diversity, plant richness, distance from forest, forest cover, and land use type) and season. (2) Methods: We installed 336 timber and cob trap nests in four complex forests and three simplified orchards within the subtropical biodiversity hotspot of south-east Queensland, Australia. Trap nests were replaced every season for 23 months and all emergents identified. (3) Results: We identified 28 wasp species and 13 bee species from 2251 brood cells. Bee and wasp community composition changed with landscape simplification such that large, ground-nesting, and spider-hunting species were present in all landscapes, while those with specialist resource requirements and (clepto) parasitoids were present only in complex landscapes. Abundance and diversity of bees and wasps were unaffected by landscape simplification but increased with rainfall. (4) Conclusions: This study highlights the need for multi-year studies incorporating nuanced measures such as composition with a focus on functional diversity to detect changes bee and wasp populations.

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Section: Introductionmentioning

confidence: 99%

Landscape Simplification Modifies Trap-Nesting Bee and Wasp Communities in the Subtropics

Wilson

Leonhardt

Burwell

et al. 2020

Insects

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“…Seven Irenangelus species are found in Brazil (Santos 2021). However, Rocha-Filho et al (2020) and the present study report the only host records known for this cleptoparasitic genus. Ecological studies on the communities of trap-nesting wasps and bees in different…”

mentioning

confidence: 58%

“…The data provided herein is the third host record of an Irenangelus species for the Neotropical region and the second for I. lucidus. Rocha-Filho et al (2020) reared a female of this cleptoparasitic species from a nest of P. captivum built in a bamboo cane in an urban area with high percentage of surrounding green areas, including forests. The nest containing four brood cells was collected in February 2019 and the emergences were recorded in March, with the I. lucidus female emerging two days after the two females and one male of P. captivum (Rocha-Filho L. C., pers.…”

mentioning

confidence: 99%

A new host record for the cleptoparasite Irenangelus lucidus (Evans, 1969) (Hymenoptera: Pompilidae)

Rocha-Filho

Augusto

2021

Entomol Commun

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We provide a new host record for the cleptoparasitic wasp Irenangelus lucidus (Evans, 1969) (Pompilidae: Ceropalinae). A single female emerged from a brood cell of the host species Auplopus militaris (Lynch-Arribalzaga, 1873) (Pompilidae: Pepsinae) reared from a bamboo cane trap nest set at the edge of a gallery forest fragment located in Minas Gerais State, Central Brazil. This is the third host record of an Irenangelus species for the Neotropical region.

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“…In light of the above, we studied the residual pollen content removed from nests of 11 cavity‐nesting bee species sampled within the urban perimeter of a medium‐sized city of south‐eastern Brazil. The nests were collected in 11 sites with different proportions of surrounding green areas and degrees of urbanisation, which were calculated according to the percentages of 14 land cover types (Rocha‐Filho et al ., 2020). We aimed to respond to the following questions: (i) Is the floral richness used by bees higher in sites with higher percentages of green areas in comparison to sites with lower proportions of green areas?…”

Section: Introductionmentioning

confidence: 99%

Pollen analysis of cavity‐nesting bees (Hymenoptera: Anthophila) and their food webs in a city

Rocha-Filho

Montagnana

Araújo

et al. 2021

Ecological Entomology

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1. Urban areas can host speciose bee communities due partially to the species‐rich combination of both native and alien plant species found in these landscapes. However, in intensively‐constructed zones, it could be expected to record a low plant diversity used by bees because of the high proportion of paved surfaces in these areas. 2. We investigated the influence of urbanisation on the cavity‐nesting bee‐plant community and interaction network structures in a medium‐sized city. The floral diversity used by nesting females in cell provisioning was retrieved from the pollen content obtained from trap‐nests collected in 11 sites located in an urban landscape gradient. 3. Eighty pollen types belonging to 20 families were identified in the 155 pollen samples analysed. At least seven alien plant species were identified in samples from all sampling points. The landscape analysis revealed a positive influence of the proportion of green areas on the pollen type richness, although the null model was also selected as best model. Likewise, all network metrics but connectance were not influenced by any of the landscape variables. 4. Our findings demonstrated that notwithstanding the sampling sites the floral diversity used by bees and the alien pollen type richness were similar. Likewise, the bee‐plant networks were modular, asymmetric, and highly specialised. The positive adaptation that cavity‐nesting bee species present in urban environments and the presence of bee species that can explore a diverse flora may indicate that the local variation in the landscape had little influence on their interactions with plants.

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Green patches among a grey patchwork: the importance of preserving natural habitats to harbour cavity-nesting bees and wasps (Hymenoptera) and their natural enemies in urban areas

Cited by 24 publications

References 83 publications

Landscape Simplification Modifies Trap-Nesting Bee and Wasp Communities in the Subtropics

Landscape Simplification Modifies Trap-Nesting Bee and Wasp Communities in the Subtropics

A new host record for the cleptoparasite Irenangelus lucidus (Evans, 1969) (Hymenoptera: Pompilidae)

Pollen analysis of cavity‐nesting bees (Hymenoptera: Anthophila) and their food webs in a city

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