Search results for "Habit"

Effect of substrate and seagrass habitat complexity on detritus colonization and decomposition in a Mediterranean coastal lagoon (Thau Lagoon, France…

2019

Habitat effects on population connectivity in a coastal seascape

2014

Published version of an article from: Marine Ecology Progress Series. Also available from Inter Research: http://dx.doi.org/10.3354/meps10944 Knowing how population connectivity varies across heterogeneous habitats can provide insight into the mechanisms underlying population structuring, and ultimately help to inform conservation and management actions. We studied whether the spatial extent of connectivity in coastal Atlantic cod Gadus morhua varied with coastal topography, hypothesizing that connectivity during all life stages would be greater among open, exposed habitats compared to sheltered, fjord-like habitats. We tested this hypothesis using (1) an extensive mark-recapture data set t…

Comparative Study of Lifestyle: Eating Habits, Sedentary Lifestyle and Anthropometric Development in Spanish 5- To 15-yr-Olds

2015

Background: The infant-juvenile period is one of high vulnerability during the lifestyles chosen become determining factors for future health status. This study aimed to evaluate lifestyle, specifically eating habits and physical activity, in 5-15-year-olds in Spain and their health status (anthropometry). Methods: This cross-sectional population study with two time points (2006 and 2013) was conducted by compiling data from the Spanish National Health Survey. We used the minor survey, specifically the data from the Health Determinants module, which included 5-15-year-olds. Compiled information was obtained from parents or guardians. Results: The overall overweight and obesity prevalence in…

Does Forest Fragmentation and Selective Logging Affect Seed Predators and Seed Predation Rates of Prunus africana (Rosaceae)?

2007

Forest fragmentation and selective logging can influence the life cycle of tropical tree species at several levels, e.g., by lowering pollination, by limiting seed dispersal, and by increasing seed predation. Understanding human-induced modifications in ecosystem processes such as seed predation is essential for conservation management of threatened species. We studied the impact of forest fragmentation and selective logging on seed predation of the endangered tree Prunus africana in the tropical rain forest of Kakamega, Kenya. We quantified the activity of seed predators in the main forest, forest fragments, and in sites of different logging intensity in the dry and rainy seasons of 2003 a…

A Comparison between Habituation and Conscience mechanism in Self–Organizing Maps

2006

In this letter, a preliminary study of habituation in self-organizing networks is reported. The habituation model implemented allows us to obtain a faster learning process and better clustering performances. The liabituable neuron is a generalization of the typical neuron and can be used in many self-organizing network models. The habituation mechanism is implemented in a SOM and the clustering performances of the network are compared to the conscience learning mechanism that follows roughly the same principle but is less sophisticated.

Commensality in the Late Bronze Age : places and practices : the contribution of recent discoveries in the south-east of the Paris Basin

2021

This doctoral dissertation uses data from the extensive preventive archaeological research carried out in the Upper Seine Valley in the south-east of the Paris Basin for at least five decades an area where Bronze Age and Early Iron Age sites are numerous and generally well preserved. The 2005 excavation by Inrap of the Villiers-sur-Seine site "le Gros Buisson", an "unusual" settlement dating to the final phase of the Late Bronze Age (9th century B.C.) is the main focus of this study, having shed new light on domestic contexts of this pivotal period. This fortified aristocratic dwelling is characterised by an organised plan, abundant artefacts, as well as the unusual consumption of young pig…

Fruiting, Morphology, and Architecture of ‘Arbequina’ and ‘Calatina’ Olive Branches

2022

Two different olive cultivars grown under a high-density hedgerow system were studied to compare their fruiting and branch architecture features and to determine the possibility to use ‘Calatina’ olive trees for intensive plantings, as a local alternative to the international reference ‘Arbequina’. Weights of two-year-old branches, fruits and leaves were recorded to estimate the growth partitioning. Growth and architectural parameters, such as shoot length, vector and diameter, branching angle, branch total length, height, width, area, and branching frequency, were determined by digital image analysis. Digital images of the fruits were also used to estimate fruit maturation by peel color an…

Analisi dei cambiamenti dell’uso del suolo nei siti Natura 2000 “Bosco S. Adriano” e “Vendicari”

2008

Population and the economic activities increases, are the main and most important causes of the impoverishment of land and marine ecosystems of the planet. Within this context, the land use and vegetation cover data, and those on the transition between the different land use categories, are among the most required information necessary for the individuation of the sustainable management strategies of environmental and landscape resources. The same information is also necessary to control the efficacy of the environmental politics and the environmental integration instances of specific field politics (agriculture, industry, tourism, ect). In fact, one of the main themes is landscape transfor…

Trasformazioni del paesaggio e conservazione degli habitat nella zona umida di Vendicari (Sicilia)

2009

Il sito Natura 2000 “Vendicari” (ITA090002) si colloca in un più ampio sistema di zone umide costiere della Sicilia Sud-orientale. La particolarità di questi ambienti è legata alla presenza di lagune costiere e di formazioni vegetali che generalmente si trovano a contatto con esse. Questi ambienti costituiscono l’habitat per diverse specie, nonché esclusivi punti di sosta per molti uccelli migratori. Queste aree, un tempo più estese in Sicilia, durante il secolo scorso sono state sottoposte a disturbi e trasformazioni ambientali e paesaggistiche con conseguente riduzione della biodiversità. Le cause che hanno determinato maggiormente tali trasformazioni sono legate allo sfruttamento agricol…

LA DIRETTIVA 92/43/CEE ED IL PATRIMONIO AGRO-FORESTALE, PRE-FORESTALE E FORESTALE SICILIANO: ALCUNE NOTE CRITICHE

2009

The 92/43/EEC Directive and the Sicilian agro-forest, pre-forest and forest heritage: some critical remarks – In order to redact the management criteria for the agro-forest and the autochthonous pre-forest and forest heritage within the Sicilian CSI Management Plans, during 2008 a critique analysis of the Interpretation Manual of European Union Habitats “Eur27” has been carried out. This manual treats quite adequately the mesophilous coenoses, the sclerophyllous forests and the conifer ones; on the other hand, some discrepancies need to be pointed out: for instance, some habitats quoted for Sicily (e.g. “matorral with Juniperus phoenicea” and “with Zizyphus lotus”) actually correspond to ve…