Search results for "HABITAT"
showing 10 items of 1243 documents
Multidimensional instruments with an integral approach to identify frailty in community-dwelling people: protocol for a systematic psychometric review
2019
IntroductionAn increasing number of investigations highlight the complex nature of frailty; therefore, the use of multidimensional assessment instruments could be useful in clinical decision-making. Frail people are found mainly in the community setting which is why this is the ideal environment for early screening and intervention. For this purpose, it is necessary to have valid, time-effective and easy-to-use frailty assessment instruments. The aim of this review is to critically appraise, compare and summarise the quality of the measurement properties of all multidimensional instruments with an integral approach to identify frailty in community-dwelling people.Methods and analysisMedline…
¿Me voy o me quedo? Factores que influyen en la decisión de abandonar el lugar de nacimiento.
2014
Múltiples factores influyen en la decisión de dispersarse y en cuándo iniciar la dispersión, y su estudio proporciona evidencias de las causas y los determinantes de la dispersión. Los animales abandonan el lugar de nacimiento para dar solución a tres problemas fundamentales: pérdida de calidad del hábitat, competencia por los recursos, y riesgo de consanguinidad. La dispersión, sin embargo, no se lleva a cabo hasta que los individuos alcanzan una condición física adecuada, que permita alcanzar con éxito un nuevo lugar de asentamiento.
Warunki zamieszkiwania w miejskich obszarach funkcjonalnych w Polsce
2016
Warunki zamieszkania stanowią bardzo ważny element oceny jakości i poziomu życia. Ich kształtowanie ma duże znaczenie w przypadku budowania i rozwoju miejskich obszarów funkcjonalnych. Celem pracy jest identyfikacja przestrzennego zróżnicowania warunków zamieszkania w miejskich obszarach funkcjonalnych w Polsce. Badania dotyczą roku 2013 i obejmują wszystkie obszary funkcjonalne Polski ukształtowane wokół ośrodków wojewódzkich. Analizę prowadzono z wykorzystaniem taksonomicznej odległości od wzorca Hellwiga w następujących układach przestrzennych: miejskie obszary funkcjonalne jako całości, ośrodki centralne a strefy zewnętrzne obszarów funkcjonalnych oraz układ gminny. Wyniki badań wskazuj…
L’habitat mobile à l’épreuve du droit. L’approche belge
2022
L’habitat mobile connaît un nouvel essor aujourd’hui. Pourtant, le droit peine à s’adapter, encore trop rivé à la figure traditionnelle du logement sédentaire et en dur. Résultat : les habitants mobiles affrontent de nombreux obstacles juridiques à l’heure actuelle, qu’il s’agisse du régime locatif applicable à leur bien, de l’installation sur un terrain, de l’inscription dans les registres de la population de la commune ou encore de la protection du logement familial (quand il ne s’agit pas, plus en amont, d’un déficit de reconnaissance normative). Émanant souvent des pouvoirs locaux, ces difficultés contrarient en tous cas (voire empêchent) l’expression de ce mode de vie plus itinérant. À…
Connections between microhabitat factors and dimensions of brown trout (Salmo trutta) redds
2017
This study is part of a process of habitat restoration and management of Finnish and Swedish rivers. This study was conducted to analyse detailed and generalised data regarding microhabitat factors and dimensions of spawning redd of brown trout (salmo trutta). The objectives of this study were to analyse connections between redd dimensions, connections between redd length and microhabitat factors and to analyse the variability of redd length and microhabitat factors among catchments in order to understand spawning habitat selectivity of brown trout (salmo trutta). The study shows that the redd dimensions are positively and strongly correlated. Redd length is weakly correlated to microhabita…
Las trayectorias habitacionales de los residentes suburbanos
2017
The suburban housing is a privileged urban form by French households for several decades. Nevertheless, the suburban residential trajectories are diversified and involve a population which is not less heterogeneous. From the literature and our field work, this contribution returns on the interests of residential trajectories approach and highlights the factors which connect the set of the inhabitants who, at one time or another of their trajectory, opted for this type of individual housing. Leaning on some discriminating variables (social, occupational, economic, life cycle…), a typology of suburban will come to conclude this article.
Current agri-environmental policies dismiss varied perceptions and discourses on management of traditional rural biotopes
2017
Traditional rural biotopes (TRBs) are threatened habitats that host significant biodiversity and several ecosystem services, and depend on active management such as low-intensity grazing. The current study explores private landowners’ decision-making on TRB management and abandonment within a social-ecological system framework. We provide insight into supporting resilience of TRB systems in the face of agricultural modernization. Using a mixed methods approach with content analysis and Q analysis, we demonstrate that TRB management fosters cultural, biological, aesthetic, and utilitarian values. These are reflected in different ways through conservationist's, profit-oriented farmer's, lands…
Lake size and fish diversity determine resource use and trophic position of a top predator in high-latitude lakes
2015
Prey preference of top predators and energy flow across habitat boundaries are of fundamental importance for structure and function of aquatic and terrestrial ecosystems, as they may have strong effects on production, species diversity, and food-web stability. In lakes, littoral and pelagic food-web compartments are typically coupled and controlled by generalist fish top predators. However, the extent and determinants of such coupling remains a topical area of ecological research and is largely unknown in oligotrophic high-latitude lakes. We analyzed food-web structure and resource use by a generalist top predator, the Arctic charr Salvelinus alpinus (L.), in 17 oligotrophic subarctic lakes…
Tree species influences diversity of ground-dwelling insects in afforested fields
2015
Abstract Impaired natural ecosystems, such as agricultural lands, are restored toward original or other target stage. Because the long agricultural history has changed the physical, chemical and biological features of the soil, afforested fields can harbor novel species assemblages and interactions. Our overall aim was to quantify the diversity of ground beetles and ants in early successional afforested fields. In a large scale field experiment, we compared plots that had been afforested 25 years ago by planting monocultures of birch, pine or spruce trees. A total of 4080 carabid individuals representing 41 species, and 131,933 ant individuals representing 15 species were recorded. Both the…
Rapid change in forms of inorganic nitrogen in soil and moderate weed invasion following translocation of wet meadows to reclaimed post‐industrial la…
2019
Anthropogenic expansion and loss of natural environments calls for the more sustainable use of resources, including land. To combine the conservation of highly valuable meadow habitat with reclamation of post‐industrial land, 1.3 ha of turf were translocated from an urban area to basins constructed near an abandoned quarry. In contrast to the usual method of choosing similar habitats as salvage sites, the selected quarry possessed different environmental properties to the meadows, challenging their acclimatisation. To evaluate the project, we monitored three meadows (Molinion caeruleae alliance) for three seasons: immediately before the transfer and for 2 years afterwards. We recorded veget…