scholarly journals One-year-old flower strips already support a quarter of a city’s bee species

2020 ◽  
Vol 75 ◽  
pp. 87-95 ◽  
Author(s):  
Michaela M. Hofmann ◽  
Susanne S. Renner

To combat the loss of flower-rich meadows, many cities are supporting greening measures, including the creation of flower strips. To assess the effectiveness of these measures in supporting flower-visiting insects, their faunas need to be compared to the background fauna at various distances from the flower strips. To meet this goal, we quantified the bee faunas of nine 1000 m2-large and newly established flower strips in the city of Munich, all planted with a regional seed mix, and compared them to the fauna recorded between 1997 and 2017 within 500, 1000, and 1500 m from the respective strip. The 68 species recorded during the flower strips’ first season represent 21% of the 324 species recorded for Munich since 1795 and 29% of the 232 species recorded between 1997 and 2017. Non-threatened species are statistically over-represented in the strips, but pollen generalists are not. These findings illustrate the conservation value of urban flower strips for common species that apparently quickly discover this food source. To our knowledge, this is the first quantitative assessment of the speed and distance over which urban flower strips attract wild bees.

Author(s):  
V. Radchenko ◽  
H. Honchar

Wild bee populations – important pollinators of many plants – are threatened with extinction due to reduced food resources, destruction of nesting sites and habitat fragmentation. The aim of this study is to determine the species diversity of wild bees in the parks of Kyiv. During the 2012-2017 spring-summer seasons a comprehensive study of the species composition and diversity of wild bees (Hymenoptera: Apoidea) was investigated. 115 wild bee species of 6 families and 34 genera have been found. Only 39 species among them were found in all parks and the common species are noted: Colletes cunicularius, Hylaeus communis, Andrena flavipes, Evylaeus calceatus, E. malachurus, E. politus, Anthophora plumipes, Bombus lucorum, B. terrestris, B. lapidarius, B. pascuorum. The proportions of species within each ecological group stay constant, except for the small decrease in oligolectic species. In all parks the ground-nesting bees are dominated. Bees that build nests in a different substrate (tree cavities, hollow plant stems, empties, holes, walls of buildings, and like) make up only 20 %. In general, on the territories of urban parks we have registered wild bees on the plants of more than 100 species from the families Asteraceaе, Fabaceaе, Lamiaceae, Rosaceaе. It should be noted, that ornamental flowering vegetation plays a significant role in wild bees nutrition in the city conditions. In some city parks we have found three species of wild bees that included in the Red Book of Ukraine: Bombus argillaceus, Xylocopa valga and Andrena chrysopus. The results of our study show that city parks are important for the conservation of wild bee populations, and the main conditions for this are the availability of flower sources and nesting sites.


Author(s):  
A.E. Tkachuk ◽  
◽  
O.A. Sotnikova ◽  
A.N. Goykalov

The variety of modern technologies and the versatility of lighting solutions in architectural structures necessitate a method for evaluating such solutions. In this article, a method for assessing the characteristics of architectural lighting of buildings is graphically demonstrated, based on the example of architectural lighting of a public building in the city of Voronezh. The proposed method involves the identification of qualitative indicators of the expressiveness of architectural lighting of facades and their quantitative assessment using an integrated approach from the standpoint of the selected characteristics and criteria. Thanks to this method, the strengths and weaknesses of the studied architectural lighting of the building are clearly identified for its subsequent modernization or the creation of promising conclusions for the design of new construction objects.


Sociobiology ◽  
2016 ◽  
Vol 63 (3) ◽  
pp. 982 ◽  
Author(s):  
Mary Ellen Reis Diniz ◽  
Maria Luisa Tunes Buschini

Eugenia uniflora L. (Myrtaceae) is pollinated mostly by bees and there are no restrictions for pollen collection in their flowers. This stimulated us to study the bee diversity on its flowers in two forest fragments in southern Brazil, in August and September, 2012. A total of 826 bees belonging to 39 species and four subfamilies were captured with entomological nets. Halictinae presented the greatest richness, followed by Apinae, Colletinae and Andreninae. Apis mellifera was the only common species and the most abundant, followed by Scaptotrigona bipunctata and Melipona obscurior. Seven species were classified as intermediate and 31 as rare. Highest numbers of bees were collected from 10h to 11:30, and The species richness of flower visiting bees was much higher than that of previous studies with first records of Plebeia remota and Anthrenoides paolae. Eugenia uniflora is a food source for exotic and native bees and possibly contributes to the conservation of these bees in forest fragments. In return, the bees probably act in maintaining this plant native of the Atlantic Forest.


Sociobiology ◽  
2018 ◽  
Vol 65 (4) ◽  
pp. 603
Author(s):  
Leonid Rasran ◽  
Alexander Diener ◽  
Baerbel Pachinger ◽  
Karl-Georg Bernhardt

Interactions between flower visiting insects and nectar resp. pollen producing plants belong to the most relevant in terrestrial ecosystems. Their diversity and dominance relationship are important indicators for the stability and functionality of ecosystems and belong to the high ranking ecosystem services. Potential pollinators should be strongly concerned especially regarding anthropogenic impacts on habitats. We studied the diversity and quantities of flower visiting insects with special focus on wild bees (Apiformes) in two locations near the city of Vienna (Austria). Insect sampling occurred in May until July 2015 every two weeks parallel to the vegetation surveys incl. records of the cover of flowering plants. In each location patches of semi-natural grassland as well as flowering strips within vineyards were investigated. We found a significant correlation between the number of insects or insect taxa (especially for Hymenoptera) and the current flower cover. In some cases flowering strips in vineyards harbor higher numbers of insects and higher diversity of bee species than the semi-natural grassland due to temporarily higher values of flower cover. However, grassland patches provide a much more constant supply with nectar producing plants replacing each other in their flowering phase during the season. In contrast, flowering strips are often dominated by one or a few short-lived sown plants, which is of advantage for some oligolectic bees specialized on Brassicaceae or Fabaceae. Flowering strips within organically farmed vineyards are more similar to semi-natural grassland regarding the diversity of flower visiting insects than to conventional farmed vineyards.


Author(s):  
Azhari Amri

Film Unyil puppet comes not just part of the entertainment world that can be enjoyed by people from the side of the story, music, and dialogue. However, there is more value in it which is a manifestation of the creator that can be absorbed into the charge for the benefit of educating the children of Indonesia to the public at large. The Unyil puppet created by the father of Drs. Suyadi is one of the works that are now widely known by the whole people of Indonesia. The process of creating a puppet Unyil done with simple materials and formation of character especially adapted to the realities of the existing rural region. Through this process, this research leads to the design process is fundamentally educational puppet inspired by the creation of Si Unyil puppet. The difference is the inspiring character created in this study is on the characters that exist in urban life, especially the city of Jakarta. Thus the results of this study are the pattern of how to shape the design of products through the creation of the puppet with the approach of urban culture.


2012 ◽  
pp. 66-80
Author(s):  
Michał Mrozowicki

Michel Butor, born in 1926, one of the leaders of the French New Novel movement, has written only four novels between 1954 and 1960. The most famous of them is La Modification (Second thoughts), published in 1957. The author of the paper analyzes two other Butor’s novels: L’Emploi du temps (Passing time) – 1956, and Degrés (Degrees) – 1960. The theme of absence is crucial in both of them. In the former, the novel, presented as the diary of Jacques Revel, a young Frenchman spending a year in Bleston (a fictitious English city vaguely similar to Manchester), describes the narrator’s struggle to survive in a double – spatial and temporal – labyrinth. The first of them, formed by Bleston’s streets, squares and parks, is symbolized by the City plan. During his one year sojourn in the city, using its plan, Revel learns patiently how to move in its different districts, and in its strange labyrinth – strange because devoid any centre – that at the end stops annoying him. The other, the temporal one, symbolized by the diary itself, the labyrinth of the human memory, discovered by the narrator rather lately, somewhere in the middle of the year passed in Bleston, becomes, by contrast, more and more dense and complex, which is reflected by an increasinly complex narration used to describe the past. However, at the moment Revel is leaving the city, he is still unable to recall and to describe the events of the 29th of February 1952. This gap, this absence, symbolizes his defeat as the narrator, and, in the same time, the human memory’s limits. In Degrees temporal and spatial structures are also very important. This time round, however, the problems of the narration itself, become predominant. Considered from this point of view, the novel announces Gerard Genette’s work Narrative Discourse and his theoretical discussion of two narratological categories: narrative voice and narrative mode. Having transgressed his narrative competences, Pierre Vernier, the narrator of the first and the second parts of the novel, who, taking as a starting point, a complete account of one hour at school, tries to describe the whole world and various aspects of the human civilization for the benefit of his nephew, Pierre Eller, must fail and disappear, as the narrator, from the third part, which is narrated by another narrator, less audacious and more credible.


REVISTA FIMCA ◽  
2018 ◽  
Vol 5 (1) ◽  
pp. 34-42
Author(s):  
Amanda Leite Silva Cabral ◽  
Flávia Peres Lima ◽  
Jéssica Iara Costa Bessa Paraguassú

Introdução: A afasia é uma das sequelas mais importantes que ocorrem após lesão cerebral de acidente vascular encefálico (AVE). Objetivos: Identificar o perfil da linguagem oral de pacientes com AVE, atendidos pelo Serviço Assistencial Multidisciplinar Domiciliar (SAMD) na cidade de Porto Velho – RO. Materiais e Métodos: Trata-se de um estudo transversal e quantitativo, realizado na residência dos pacientes que estavam sendo atendidos pelo SAMD. Onde foi utilizado o protocolo de Teste de Reabilitação das Afasias composto inicialmente de um questionário que foi aplicados com os familiares dos pacientes para coletar dados quanto ao AVE e os Testes de Comunicação Oral para avaliar dos pacientes. Resultados: Foram avaliados 11 sujeitos com AVE e oito sujeitos apresentaram afasia emissiva do tipo Broca (100%) com presença de agramatismo e anomia (87,5%), e déficit na organização da comunicação e na memória (100%). Referente à etiologia do AVE, verificou-se que 62,5% dos sujeitos apresentaram etiologia decorrente de hipertensão, com tempo de sequelas com tempo entre um ano menos e a três anos (37,5%). Todos os sujeitos (100%) eram muito falantes antes do AVE, porem 50% continuaram muito falantes após o AVE e os outros 50% se tornaram pouco falantes. Conclusão: Os resultados evidenciam que a maioria dos sujeitos apresentaram afasia emissiva do tipo Broca, em decorrência de Acidente Vascular Encefálico Isquêmico tendo como fator etiológico a hipertensão. Desencadeando alterações de linguagem como anomia e agramatismo, afetando ainda suas habilidades de comunicação como a memória e a organização da linguagem. Introduction: Aphasia is one of the most important sequels that occur after brain injury from stroke. Objectives: To identify the oral language profile of patients with stroke, assisted by the Multidisciplinary Home Care Service (SAMD) in the city of Porto Velho - RO. Materials and Methods: This was a cross-sectional and quantitative study carried out at the residence of the patients who were being treated by the SAMD. Where the Aphasia Rehabilitation Test protocol was used, composed initially of a questionnaire that was applied with the relatives of the patients to collect data regarding the AVE and the Oral Communication Tests to evaluate the patients. Results: Eleven subjects with EVA were evaluated, and eight subjects presented Embryonic Emphasis of Broca type (100%) with presence of agramatism and anomia (87.5%), and deficits in the organization of communication and memory (100%). Regarding the etiology of the AVE, 62.5% of the subjects presented etiology due to hypertension, with sequelae time between one year less and three years (37.5%). All subjects (100%) were very talented before the AVE, but 50% remained very talented after the AVE and the other 50% became less talkative. Conclusion: The results show that most of the subjects presented Embryonic Emphasis of the Broca type, due to Ischemic Stroke, having as etiologic factor hypertension. Unleashing language changes such as anomie and agramatism, still affecting his communication skills as memory and the organization of language.


Oecologia ◽  
2021 ◽  
Author(s):  
Susanne S. Renner ◽  
Marie Sophie Graf ◽  
Zoe Hentschel ◽  
Helen Krause ◽  
Andreas Fleischmann

AbstractThe increase in managed honeybees (Apis mellifera) in many European cities has unknown effects on the densities of wild bees through competition. To investigate this, we monitored honeybees and non-honeybees from 01 April to 31 July 2019 and 2020 at 29 species of plants representing diverse taxonomic and floral-functional types in a large urban garden in the city of Munich in which the same plant species were cultivated in both years. No bee hives were present in the focal garden, and all bee hives in the adjacent area were closely monitored by interviewing the relevant bee keepers in both 2019 and 2020. Honeybee numbers were similar in April of both years, but increased from May to July 2020 compared to 2019. The higher densities correlated with a significant increase in shifts from wild bee to honeybee visits in May/June/July, while visitor spectra in April 2019 and 2020 remained the same. Most of the species that experienced a shift to honeybee visits in 2020 were visited mostly or exclusively for their nectar. There were no shifts towards increased wild bee visits in any species. These results from a flower-rich garden have implications for the discussion of whether urban bee keeping might negatively impact wild bees. We found clear support that high honeybee densities result in exploitative competition at numerous types of flowers.


2020 ◽  
Vol 30 (1) ◽  
pp. 34764
Author(s):  
Andressa Barros Ibiapina ◽  
Janaína Soares Leal ◽  
Pedro Ricardo Alves de Santana ◽  
Marcelo Ribeiro Mesquita ◽  
Tito Lívio da Cunha Lopes ◽  
...  

AIMS: This research aims to determine the epidemiology and the spatial distribution of intestinal parasitosis in the city of Teresina.METHODS: A cross-sectional study was carried out based on the data of parasitological fecal exams performed in the Laboratory Raul Bacelar between January, 2014 and July, 2017. In addition to the prevalence of intestinal parasitosis and polyparasitism, we verified the association of these diseases with gender, zone and period of the year by means of the chi-squared test, whereas the relation with age was analyzed by the Mann-Kendall tests and multiple comparisons of age classes. The spatial distribution was performed using the QGIS georeferencing software.RESULTS: The prevalence of enteroparasitosis in Teresina is 17,8% with Ascaris lumbricoides being the most common species, due to the precarious sanitary conditions of the city. The prevalence of individuals with polyparasitism is 3,13%, in which an association between the species Entamoeba coli and Entamoeba histolytica/dispar was found. There was no relation between intestinal parasitosis with gender, but we verified that individuals in rural areas are more susceptible to these diseases. The species Ascaris lumbricoides and Entamoeba histolytica/dispar occur more frequently in the first and second semester, respectively. We observed that there is an apparent tendency to increase cases of E. histolytica/dispar and reduction of cases of Giardia sp. according to aging. Mapping intestinal parasitosis showed us that there is a prevalence between one and 20% in most of Teresina's neighborhoods, and Ascariasis embodies at least 40% of cases of enteroparasitosis in these neighborhoods.CONCLUSIONS: Investments in basic sanitation and new epidemiological investigations must be carried out to control intestinal parasitosis in Teresina, emphasizing that children and the elderly should be considered priority groups in these programs.


2013 ◽  
Vol 47 (4) ◽  
pp. 291-297
Author(s):  
L. A. Kolodochka ◽  
O. S. Shevchenko

Abstract In different types of substrate (soil, litter, lichens and mosses) collected at three memorial complexes (cemeteries) of Kyiv (Ukraine), 70 species from 57 genera, 34 families of oribatid mites were found. A few eurytopic species capable of tolerance to different types of pollution make up an essential part in each species complex. The species diversity and complexity of oribatid community structure at researched areas increased with distance from the city center. There was no direct relation between the degree of dominance of most common species and the cemetery’s relative remoteness from the center of the city.


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