Search results for "communities"
showing 10 items of 355 documents
Utilization of microbial abundance and diversity as indicators of the origin of soil aggregates produced by earthworms
2013
This study aimed at testing the capability of microbial community structure and abundance to be used as bioindicators of the origin of earthworm cast aggregates. Compact surface casts produced by Amynthas khami and surrounding aggregates lacking visible signs of biological activity (control) were left to disaggregate by natural rainfall and separated into four size classes (5-2, 2-0.5, 0.5-0.25 and <0.25 mm). The genetic structure and the abundance of the bacterial and fungal communities were characterized using B- and F-ARISA fingerprinting approach and quantitative PCR directly from DNA extracted from soil. Bacteria and to a lesser extent fungi were more abundant in casts than in control …
Minimum information about a biofilm experiment (MIABiE): standards for reporting experiments and data on sessile microbial communities living at inte…
2014
The minimum information about a biofilm experiment (MIABiE) initiative has arisen from the need to find an adequate and scientifically sound way to control the quality of the documentation accompanying the public deposition of biofilm-related data, particularly those obtained using high-throughput devices and techniques. Thereby, the MIABiE consortium has initiated the identification and organization of a set of modules containing the minimum information that needs to be reported to guarantee the interpretability and independent verification of experimental results and their integration with knowledge coming from other fields. MIABiE does not intend to propose specific standards on how biof…
Editorial: Elevation Gradients: Microbial Indicators of Climate Change?
2019
Life cycle assessment of solar communities
2020
Abstract This study presents the comparison of the life cycle performance of two different urban energy systems, applied to a large mixed-use community, in Calgary (Canada). The two systems investigated consist of an energy efficient conventional system, using heat pumps for heating, cooling and domestic hot water; the second design widely deploys solar thermal panels coupled to district heating infrastructure and a borehole seasonal thermal storage. The analysis is based on the Life Cycle Assessment methodology and includes the stages of raw materials and energy supply, system manufacturing, use stage of the systems, generation and use of energy on-site, maintenance and components’ substit…
À la recherche des maillages communaux d'antan. Présentation du projet ANR COMMUNES et de quelques résultats préliminaires
2020
The COMMUNES project aims: 1) to produce the first H-GIS in the world providing annualised boundary data for all French municipalities from the Revolution to the present day. Each spatial unit will include population data and metrics of access to networks of transport; 2) to develop a multimodal model of transport to allow the dynamic analysis of the relationship between economic and demographic changes and accessibility from the end of the 18th century to the present day; 3) to represent and analyse on a very fine scale some key demographic and socio-economic phenomena. Our method for reconstructing historic administrative boundaries combines the study of historical and cartographic source…
Zbiorowiska z klasy Utricularietea intermedio-minoris DEN HARTOG et SEGAL 1964 em. PIETSCH 1965 w Słowińskim Parku Narodowym
2017
Zbiorowiska z klasy Utricularietea intermedio-minoris DEN HARTOG et SEGAL 1964 em. PIETSCH 1965 należą do wyspecjalizowanych pod względem ekologicznym fitocenoz, występujących w wodach oligotroficznych oraz dystroficznych na podłożu torfowym. Polsce należą do grupy zbiorowisk bardzo słabo zbadanych. W 2014 r. na terenie Słowińskiego Parku Narodowego zbiorowiska z klasy Utricularietea intermedio-minoris zostały stwierdzone w dystroficznym zbiorniku wodnym koło miejscowości Gać. Są to: Sparganietum minimi (współrzędne geograficzne 54°69’05,65’’ N, 17°50’40,42’’ E) oraz Scorpidio-Utricularietum minoris (współrzędne geograficzne 54°69’06,52’’ N, 17°50’50,29’’ E). Akwen, w którym stwierdzono fit…
Desigualdad social y toma de decisiones en los comunales: El gobierno del mayor canal de riego de España (la Acequia Real del Júcar, Valencia) en el …
2021
espanolHacia 1850 la Acequia Real del Jucar era el mayor sistema comunitario de riego de Espana y se caracterizaba por la fuerte desigualdad social entre los regantes. El articulo analiza los cambios que experimentaron las instituciones para su gobierno en una etapa de profundas transformaciones sociales y politicas en la sociedad espanola, la segunda mitad del siglo XIX. Los organos de gobierno del canal estaban sujetos a una organizacion de tipo jerarquico que comprendia dos grandes niveles: por una parte, estaba la direccion del conjunto del sistema, en la que solo una reducida elite de terratenientes podia intervenir; por otra, habia organos de gestion local que administraban las sucesi…
Fitocenozy mannicy odstającej i solirodu zielnego Puccinellio distantis-Salicornietum brachystachyae (Wilkoń-Michalska 1963) R. Tx. 1974 w rezerwacie…
2019
Rezerwat przyrody Ciechocinek w Ciechocinku o powierzchni 1,88 ha, został założony w 1963 r. w celu ochrony śródlądowych zbiorowisk solniskowych. Od 2009 r. rezerwat zlokalizowany jest w granicach obszaru Natura 2000 Ciechocinek (PLH040019) o powierzchni 13,23 ha. Obecnie najwyższe zasolenie i występowanie fitocenoz zespołu mannicy odstającej i solirodu zielnego Puccinellio distantis-Salicornietum brachystachyae (Wilkoń-Michalska 1963) R. Tx. 1974 zostało stwierdzone w obrębie płytkiego rowu odprowadzającego słone wody burzowe spod tężni solankowych, tężni nr 2 i 3. W latach 2015–2017 r. zbiorowiska solniskowe obejmowały niewielką część rezerwatu i obszaru Natura 2000, o powierzchni około 2…
Early post-fire bird community in European boreal forest: Comparing salvage-logged with non-intervention areas
2019
Salvage logging after disturbances in forests substantially modifies vegetation structureand dead wood availability, but empirical evidence on its impact on biodiversity, especiallyin European boreal forest, is sparse. In this study we investigated the short-term effect ofpost-fire salvage logging on species richness and abundance of birds in recently burnedmixed coniferous forest. Using point counts we estimated local species composition at 49salvaged sites and 55 non-intervention sites (burnt forest left for natural regeneration) thatwere not logged after afire in south-central Sweden. Local species richness, abundanceand Simpson's species diversity index were significantly higher at non-…