The associations among the breeding performance of Osmia bicornis L. (Hymenoptera: Megachilidae), burden of pathogens and nest parasites along urbanisation gradient

Łoś, Aleksandra; Skórka, Piotr; Strachecka, Aneta; Winiarczyk, S.; Adaszek, Łukasz; Winiarczyk, Mateusz; Wolski, Dariusz

doi:10.1016/j.scitotenv.2019.135520

Cited by 10 publications

(10 citation statements)

References 58 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…At the same time, the old urban population showed the lowest individual MHC variability (i.e., the average number of alleles per individual). This may suggest an adaptation to a specific (perhaps relatively homogenous) assemblage of urban pathogens and it is consistent with empirical studies showing altered composition of parasite faunas in an urbanized landscape and a negative association of parasite richness with urbanization level (Calegaro-Marques & Amato, 2014;Łoś et al, 2020). We, however, explicitly acknowledge that no pathogen data were collected in our study, and we cannot draw any firm conclusions with this respect.…”

supporting

confidence: 87%

Urbanization processes drive divergence at the major histocompatibility complex in a common waterbird

Pikus

Włodarczyk

Jedlikowski

et al. 2021

PeerJ

View full text Add to dashboard Cite

Urban sprawl is one of the most common landscape alterations occurring worldwide, and there is a growing list of species that are recognised to have adapted to urban life. To be successful, processes of urban colonization by wildlife require a broad spectrum of phenotypic (e.g., behavioural or physiological) adjustments, but evidence for genetic adaptations is much scarcer. One hypothesis proposes that different pathogen-driven selective pressures between urban and non-urban landscapes leads to adaptations in host immune genes. Here, we examined urbanization-related differentiation at the key pathogen-recognition genes of vertebrate adaptive immunity-the major histocompatibility complex (MHC)-in a common waterbird, the Eurasian coot (Fulica atra). Samples were collected from an old urban population (established before the 1950s), a new urban population (established in the 2000s), and two rural populations from central Poland. We found strong significant divergence (as measured with Jost’s D) at the MHC class II between the old urban population and the remaining (new urban and rural) populations. Also, there was a moderate, but significant divergence at the MHC between the new urban population and two rural populations, while no divergence was found between the two rural populations. The total number of MHC alleles and the number of private (population-specific) MHC alleles was lower in old urban populations, as compared to the rural ones. These patterns of differentiation at the MHC were not consistent with patterns found for neutral genetic markers (microsatellites), which showed few differences between the populations. Our results indicate that MHC allele composition depended on the level of anthropogenic disturbance and the time which passed since urban colonization, possibly due to the processes of genotype sorting and local adaptation. As such, our study contributes to the understanding of genetic mechanisms associated with urbanization processes in wildlife.

show abstract

supporting

confidence: 87%

Urbanization processes drive divergence at the major histocompatibility complex in a common waterbird

Pikus

Włodarczyk

Jedlikowski

et al. 2021

PeerJ

View full text Add to dashboard Cite

show abstract

“…However, it was recently reported that solitary Osmia spp. bees do not transmit or introduce the pathogen microorganisms in their nests from the environment [5]. Findings such as unused pollen provisions or brood failures in the early bees' developmental stages could be caused by other environmental or anthropogenic factors, such as pollution or urbanization.…”

Section: Discussionmentioning

confidence: 99%

“…The extraction of total DNA from the smashed bees' abdomens was done using the DNAeasy Blood and Tissue Kit (Qiagen, Germany) according to the manufacturer's instructions. Further standard Polymerase Chain Reaction (PCR) molecular analysis was performed as was described elsewhere [5,21], through the literature within.…”

Section: Estimation Of the Osmia Spp Bee's Survival Levelmentioning

confidence: 99%

See 1 more Smart Citation

The Impact of Different Biotopes and Management Practices on the Burden of Parasites in Artificial Nests of Osmia spp. (Megachilidae) Bees

et al. 2022

View full text Add to dashboard Cite

The decline in pollinator insect abundance and diversity is increasing on a global scale. Major threats are the byproducts of numerous negative environmental pressures acting individually or in combination. They vary throughout different geographical areas, affecting the solitary bees differently. One of the most important negative pressures are the many parasites, predators and pests representing a threat to the successful reproduction of solitary bees in artificial nests. Especially vulnerable are the managed Osmia spp. bee populations reared for commercialization and trade. The primary goals of our monitoring study were: (i) to examine the presence and the prevalence of brood parasites in the various types of bees’ nesting material and in semi-field rearing conditions using the nest section analyses; (ii) to determine the presence of Nosema spp. in samples of feces and homogenized bee abdomens using a multiplex PCR method; (iii) the evaluation of the survival success level and emergence mass of healthy bees at each of the four studied bee rearing locations separately, depending on different environments and on the implementation of different managing practices. We determined the presence and prevalence of nest destructor parasites and accompanying fauna. Their presence was positively correlated with bee rearing failures. The results of this study may be used as a baseline for further solitary bee nest parasites monitoring schemes.

show abstract

“…However, over the past decades, severe losses in insect pollinator numbers and diversity have been reported (Cameron et al, 2011;Kevan & Phillips, 2001;Rhodes, 2018;Antoń & Denisow, 2018). e main causes of this phenomenon include agricultural intensification, spreading of insect pathogens, habitat loss, and shortage of food resources (Dance et al, 2017;Fürst et al, 2014;Jachuła, Denisow, & Wrzesień, 2018;Łoś et al, 2020;Wrzesień et al, 2016;Xiao et al, 2016), and it can reduce agricultural profitability (Gallai et al, 2009;Winfree et al, 2011) and threatens overall biodiversity (Brodie et al, 2014;Potts et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Nectar Production and Spectrum of Insect Visitors in Six Varieties of Highbush Blueberry (Vaccinium corymbosum L.) in SE Poland

Bożek

2021

Acta Agrobot

View full text Add to dashboard Cite

The attractiveness of plants to pollinators depends strongly on flower rewards, especially nectar and pollen. Nectar mass, sugar concentration, and sugar mass are known to influence the spectrum and abundance of insect visitors. Respective data on nectar secretion in highbush blueberry ( Vaccinium corymbosum ) under the climatic conditions of Poland are scarce. This study was conducted in 2002–2005 to assess flower abundance, nectar production, and insect visitors in six varieties of V. corymbosum in Niemce, SE Poland. Flower abundance ranged from 1.63 ± 0.64 (‘Darrow’) to 4.07 ± 0.95 in thousands of flowers per shrub (‘Northland’). Nectar mass, sugar concentration, and nectar sugar mass increased with flower age, peaking between the sixth and ninth day. Significant differences in nectar characteristics occurred between years and between varieties. ‘Bluecrop’ and ‘Darrow’ produced the largest nectar mass (19.08 ± 7.09 and 16.60 ± 8.31 mg nectar per flower, respectively) and nectar sugar mass per flower (6.39 ± 1.52 and 5.76 ± 1.51 mg sugar per flower, respectively). The estimated sugar yield in the studied V. corymbosum varieties ranged from 9.4 ± 3.3 to 20.7 ± 3.8 g sugar per shrub (‘Croatan’ and ‘Bluecrop,’ respectively). Regarding insect visitors, only honey bees and bumble bees were observed. Honey bees comprised 81%–98% of the total number of observed insect visitors. Highbush blueberry, due to abundant blooming and high per-flower sugar yield, is thus a good source of nectar sugars for honey bees.

show abstract

The associations among the breeding performance of Osmia bicornis L. (Hymenoptera: Megachilidae), burden of pathogens and nest parasites along urbanisation gradient

Cited by 10 publications

References 58 publications

Urbanization processes drive divergence at the major histocompatibility complex in a common waterbird

Urbanization processes drive divergence at the major histocompatibility complex in a common waterbird

The Impact of Different Biotopes and Management Practices on the Burden of Parasites in Artificial Nests of Osmia spp. (Megachilidae) Bees

Nectar Production and Spectrum of Insect Visitors in Six Varieties of Highbush Blueberry (Vaccinium corymbosum L.) in SE Poland

Contact Info

Product

Resources

About