3,412 research outputs found

    Diachronic study of the floristic diversity of the Royal Mausoleum of Mauretania, Algeria

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    This study aimed to provide knowledge on the mural flora of the Royal Mausoleum of Mauretania. Through floristic surveys, we complied a catalog listing168 vascular plants belonging to 141 genera and 58 families. Asteraceae and Poaceae were the most dominant families, constituting 24.81% of the species. Dominant characteristics of this flora included therophytes (41.07%) and Mediterranean floristic elements (67.26%). To update the floristic list of the Mausoleum, we compared our data with 3 old lists from 1867, 1928 and 1985. The diachronic analysis reveals the persistance of 35 taxa representing 16.27% of 215 taxa listed since the first inventory, and the emergence of 30 new taxa (13.95%). The diversity of this wall flora is associated with changes in the landscape around the Mausoleum as well as its conservation status

    Vascular Plants of the Caribou-Targhee National Forest and Curlew National Grassland in Southeastern Idaho, Western Wyoming, and Northern Utah

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    Due to a historical paucity of collections from and the absence of a comprehensive floristic treatment for parts of the Caribou-Targhee National Forest and Curlew National Grassland, an updated inventory for the area was needed. I present an annotated checklist of the vascular plants documented from the Caribou-Targhee National Forest and Curlew National Grassland. A total of new 3189 voucher specimens were collected for this project in 2021 and 2022. To compile the annotated checklist, I consulted both newly collected specimens and specimen data from online botanical databases. A total of 1557 taxa (species, subspecies, varieties, and hybrids), 1423 species (including hybrids), 481 genera, and 94 families are known to occur in the study area. At least three new state records (Draba thompsonii (C.L. Hitchc.) G. Mulligan & Al-Shehbaz, Sphaeralca parvifolia A. Nelson, and Boechera lasiocarpa (Rollins) Dorn) and 137 new county records were documented, a few of which were published previously. An additional 38 first records were discovered, of which approximately 21.1% were not native to the United States. A number of other important occurrences were documented, such as occurrences of rare taxa, Forest Service Region 4 Sensitive Species, and new reports of non-native taxa. The large number of documented county records supports the continued applicability of the Wallacean Shortfall in the flora of western North America. Employees of the U.S. Forest Service, academic researchers, and others will be able to use the annotated checklist to better understand, research, and conserve the flora of the Caribou-Targhee National Forest and Curlew National Grassland

    Plantediversitet p├ą engtak i Oslo og omegn.

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    Installasjonen av eng p├ą gr├Şnne tak anbefales som et bidrag til ├Şkt plantediversiteten i urbane omr├ąder. Likevel er det lite forskning p├ą floraen som eksiterer p├ą etablerte engtak, og hvilket bidrag de har til biodiversitet. I l├Şpet av sommeren 2022 ble vegetasjonen p├ą seks ulike takflater i Oslo og omegn med etablert eng samplet. Artsregistreringen ble gjennomf├Şrt ved bruk av ruter (0,5m x 0,5 m) hvor planteartene ble notert med prosentdekning innenfor ruten. I tillegg ble det uthentet jordpr├Şver og registrert milj├Şvariabler for ├ą kunne bed├Şmme hvilke ├Şkologiske faktorer som fremmer h├Şy plantediversitet og vegetasjonsdekning. Basert p├ą dataen innhentet fra feltarbeidet ble Shannon Diversity Index for hver takflate og regresjonsanalyser for flere ├Şkologiske variabler utregnet. Totalt sett s├ą hadde takene relativt lav plantediversitet, men likevel h├Şyere enn hva som eksiterer p├ą sedumtak. Takene med helning hadde mindre vegetasjonsdekning enn flate tak. Resultatene indikerte ogs├ą at innslaget av ┬źtrolig innspredde┬╗ arter ├Şkte med alder p├ą takflatene, som i stor grad var tradisjonelle ugressarter. Vekstmediet var gjennomg├ąende sv├Žrt n├Žringsrikt og ikke i overenstemmelse med hva som er anbefalt for ├ą skape artsrike enger. I tillegg hadde ingen av takene konsekvent skj├Ştsel som er et av hovedprinsippene for ├ą skape artsrike enger. De mest fremtredende registrerte planteartene ble ogs├ą trukket frem som forslag til bruk i fremtidige i takenger. Engtak har et stort potensial som bidrag til ├Şkt biologisk mangfold, og derfor burde det brukes mer ressurser for ├ą skape gode veiledere for oppbygning, plantevalg og skj├Ştsel for anleggelse av artsrike enger p├ą tak.The installation of meadows on roofs is a measure promoted to increase plant diversity in urban areas. Nevertheless, there is little data obtained on the actual flora on established meadow roofs, and what contribution they have to biodiversity. In the summer of 2022, the vegetation on six different roof surfaces in and around Oslo with established meadows was sampled. The species registration was carried out using grids (0.5m x 0.5m) where the plant species were noted with percentage coverage within the grid. In addition soil samples were obtained and environmental variables recorded to assess which ecological factors promote high plant diversity and vegetation cover. Based on the data obtained from the fieldwork, the Shannon Diversity Index for each roof and regression analyzes for several ecological variables were calculated. Overall, the roofs had relatively low plant diversity, but still higher than what exists on sedum roofs. The roofs with an angle had less vegetation cover than flat roofs. The results also indicated that the proportion of "probably introduced" species increased with age on the roof surfaces, which were largely traditional weed species. The growing medium was consistently very nutrient- rich and not in accordance with what is recommended for creating species-rich meadows. In addition, none of the roofs had consistent management, which is one of the main principles for creating species-rich meadows. The most prominent registered plant species were also highlighted as suggestions for use in future meadows on roofs. Meadow roofs have great potential as a contribution to increased biological diversity, and therefore more resources should be used to create good guides for construction, plant selection and management for the establishment of species-rich meadows on roofs

    Bioindication of Environmental Conditions Using Solar Park Vegetation

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    Solar parks are currently considered a new source of carbon-free energy. At the same time, they encroach on our landscape and create new conditions for flora and fauna. Vegetation responds to changes in living conditions. The aim of this study was to evaluate the changes in soil conditions induced by solar parks using vegetation bioindicators. A vegetation assessment was carried out in a solar park located in the cadastral territory of the municipality of Un├şn (Czech Republic). Among the soil conditions observed, this study focused on soil moisture, pH, nitrogen availability, phosphorus availability, and salinity. A total of 77 taxa of vascular plants were identified. Based on the bioindication of vegetation, it can be concluded that there are changes in the conditions between sites under photovoltaic panels (PV) and between rows of PV panels. Under PV panels, species with extreme values of the monitored soil criteria have a higher representation. These species can tolerate salinity, deficiency, or excess nitrogen and phosphorus. Different conditions under PV panels lead to diversity in species composition. This results in significant fragmentation of solar couplet vegetation. However, extreme conditions may create room for invasive plant species to establish themselves. Thus, it is necessary to monitor changes in vegetation, especially under PV panels, in the following years. The characterization of environmental conditions based on vegetation biomonitoring shows the diversity of solar park conditions. Diverse conditions are also important for landscape fragmentation.O

    Preferencje siedliskowe i r├│┼╝norodno┼Ťd motyli zwi─ůzanych z niewielkimi fragmentami miejskiej ro┼Ťlinno┼Ťci

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    Presented thesis aims to analyze species richness, abundance, functional diversity, phenological changes and flower preferences of butterfly communities associated with five urban wastelands located in ┼ü├│d┼║, a large postindustrial city. Quantitative material was collected during two seasons. 214 Pollard walks were conducted between April and September of 2019 and 2020. Analysis of flower preferences was conducted in 2021 and 2022. Investigated westlands fauna was homogenous, although diverse (46 species), due to co-occurence of butterflies representing different ecological requirements. Composition of butterfly communities at small scale restricted urban green spaces reflected the regional species pool of Central Europe. Observed patterns resulted from high microhabitat diversity and availability of plants for highly plant dependent insects like butterflies. Majority of butterflies recorded in ┼ü├│d┼║ are generalists, although taxa like wetland species Lycaena dispar and Polyommatus coridon - facultative myrmecophile associated with calcareous grassland were also observed in the city. Fauna was numerically dominated by moderately good dispersers characterized by high fertility, cryptic solitary caterpillars foraging on ground level. Dominance of those butterflies may result from cultivation practice and other types of disturbance occuring in fragmented urban habitat patches. Majority of species were flower generalists utilizing mostly species representing Asteraceae, Fabaceae and Lamiaceae. Flower visits of 39 butterflies on 81 species of plants, representing 19 families were recorded. In general species recorded in the city were visiting shallow or medium depth pink, yellow and white flowers. Obtained results provide new insights into knowledge about urban pollinators and can be used in urban management planning.Praca ma na celu analiz─Ö bogactwa gatunkowego, rozmieszczenia, r├│┼╝norodno┼Ťci funkcjonalnej, zmian fenologicznych i preferencji pokarmowych motyli zwi─ůzanych z pi─Öcioma miejskimi nieu┼╝ytkami zlokalizowanymi w ┼üodzi, du┼╝ym, ┼Ťrodkowoeuropejskim postindustrialnym mie┼Ťcie. Badania ilo┼Ťciowe trwa┼éy dwa sezony badawcze. Dane zebrano na 214 transektach Pollarda w okresie od kwietnia do wrze┼Ťnia roku 2019 i 2020. Preferencje pokarmowe owad├│w doros┼éych by┼éy tak┼╝e analizowane w roku 2021 i 2022. Faun─Ö miejskich nieu┼╝ytk├│w charakteryzowa┼éa homogeniczno┼Ť─ç po┼é─ůczona z wysokim zr├│┼╝nicowaniem gatunkowym i ekologicznym. W czasie bada┼ä odnotowano 46 gatunk├│w. Zgrupowania motyli zwi─ůzane z badanymi nieu┼╝ytkami odzwierciedla┼éy faun─Ö regionaln─ů typow─ů dla Europy ┼Ürodkowej. Zaobserwowane wzorce rozmieszczenia wynika┼éy z du┼╝ego zr├│┼╝nicowania mikrosiedlisk i wysokiej dost─Öpno┼Ťci ro┼Ťlin pokarmowych. Motyle wyst─Öpuj─ůce w ┼üodzi mo┼╝na okre┼Ťli─ç jako gatunki ubikwistyczne z kilkoma wyj─ůtkami, m.in. Lycaena dispar (gatunek zwi─ůzanym z wilgotnymi siedliskami) oraz Polyommatus coridon - fakultatywnym myrmekofilem zwi─ůzanym murawami na pod┼éo┼╝u wapiennym. Faun─Ö zdominowa┼éy ilo┼Ťciowo gatunki o umiarkowanie dobrych zdolno┼Ťciach dyspersyjnych, o wysokiej p┼éodno┼Ťci, samotnych g─ůsienicach ┼╝eruj─ůcych przy ziemi i cz─Östo wykazuj─ůcych aktywno┼Ť─ç nocn─ů. Rozmieszczenie motyli w mie┼Ťcie mo┼╝e by─ç zwi─ůzane z wp┼éywem zabieg├│w piel─Ögnacyjnych oraz innych zaburze┼ä typowych dla niestabilnych, izolowanych i pofragmentowanych siedlisk miejskich. Wi─Ökszo┼Ť─ç odnotowanych motyli mia┼éa szeroki preferencje w wyborze ro┼Ťlin kwiatowych. Wykorzystywa┼éy g┼é├│wnie gatunki ro┼Ťlin z rodziny Asteraceae, Fabaceae i Lamiaceae. Stwierdzono ┼╝erowanie 39 gatunk├│w motyli na 81 gatunkach ro┼Ťlin z 19 rodzin. Motyle obserwowano przede wszystkim na p┼éytki i ┼Ťredniej g┼é─Öboko┼Ťci kwiatach w kolorze r├│┼╝owym, ┼╝├│┼étym i bia┼éym. Uzyskane wyniki przynosz─ů wiele nowych informacji na temat ekologii ┼╝yj─ůcych w mie┼Ťcie zapylaczy i mog─ů zosta─ç wykorzystane w zarz─ůdzaniu zieleni─ů miejsk─ů

    Éntasis. Centro de servicios centrales: Cidade das TIC

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    Se presenta el Trabajo Fin de M├íster (TFM MUA) correspondiente al M├íster Universitario en Arquitectura en la Escuela T├ęcnica Superior de Arquitectura de A Coru├▒a. El proyecto pertenece al programa Iacobus+ del curso 2021/2022 y propone el dise├▒o del Centro de Servicios Centrales (CSC) en la futura Ciudad de las TIC de la F├íbrica de Armas de A Coru├▒a. Este documento ha sido desarrollado por Laura Pi├▒eiro Couce junto a los profesores del Taller correspondiente. La documentaci├│n del presente Proyecto de Ejecuci├│n se redacta para establecer todos los datos descriptivos, urban├şsticos y t├ęcnicos, para conseguir llevar a buen t├ęrmino la construcci├│n de un edificio p├║blico de este tipo, seg├║n las reglas de la buena construcci├│n y el reglamento aplicable.Traballo fin de mestrado (UDC.ETSA). Arquitectura. Curso 2021/202

    Evaluating the robustness of nature-based solutions: future resilience of sedum-based soft capping as a conservation approach for heritage sites in Britain and Ireland

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    Nature-based solutions are seen to benefit both society and biodiversity. However, research into their future resilience is required. Soft capping is a nature-based conservation strategy that mimics the natural colonisation of plants on top of ruined walls and reduces rates of material deterioration. To remain effective, soft capping species must be tolerant of future climatic conditions. We use the Maxent species distribution model to assess the resilience of soft capping species to low and high emission scenarios across Britain and Ireland. We assess the mid- and end-century presence probability of four native and archaeophyte species used in soft capping (Sedum album, S. acre, S. anglicum and Saxifraga granulata). Future presence probabilities were calculated using the climate models HadGEM3-GC31-LL, IPSL-CM6A-LR and MIROC6. Results suggest that current sedum-based soft caps will remain viable until mid-century with additional maintenance (e.g. watering) during droughts, although soft caps predominantly formed of Sedum album may be prone to failure in south-eastern England. In the future, species more resilient to arid conditions may need to be preferentially selected for soft capping to ensure resilience under a warming climate. Species distribution modelling provides a useful way of predicting the future resilience of nature-based solutions

    Adaptation of Life form Categorisation of Ellenberg and Mueller-Dombois to the Hungarian Flora

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    The categorisation of plant species according to their life form has a long history in plant ecology. The most popular system worldwide and also in Hungary is RaunkiaerÔÇÖs categorisation according to the position of buds (meristems) surviving the adverse season. The original system contains only seven categories, resulting in high diversity within each category. Therefore, different refinements are suggested. This paper aims to apply an internationally accepted refinement of RaunkiaerÔÇÖs categorisation, the Ellenberg and Mueller-Dombois system, to the Hungarian flora
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