Thème 'population' du RP 2009

For PPRTs, Article L515-16 et seq. of the Environmental Code provides that: ‘within the perimeter of exposure to risks, plans for the prevention of technological risks may, depending on the type of risk, their severity, their probability and their kinetics, draw up recommendations aimed at strengthening the protection of the population from the risks involved and relating to the development, use or operation of buildings, works, communication routes and campgrounds or caravan parking sites, which may be implemented by owners, operators and users’. These voluntary recommendations are intended to enhance the protection of the population from the risks involved.

Quartiers IRIS de La Rochelle (2008)

For PPRTs, Article L515-16 et seq. of the Environmental Code provides that: ‘within the perimeter of exposure to risks, plans for the prevention of technological risks may, depending on the type of risk, their severity, their probability and their kinetics, draw up recommendations aimed at strengthening the protection of the population from the risks involved and relating to the development, use or operation of buildings, works, communication routes and campgrounds or caravan parking sites, which may be implemented by owners, operators and users’. These voluntary recommendations are intended to enhance the protection of the population from the risks involved.

Thème 'activité des résidents' du RP 2010

Quartiers IRIS de La Rochelle (2008)

La base infracommunale « Couples - Familles - Ménages » fournit des données sur les caractéristiques des ménages, des personnes qui les composent (âge, état matrimonial, catégorie socio-professionnelle) et les caractéristiques des familles (nombre d'enfants).

La base infracommunale « Diplôme - Formation » fournit des données sur l'âge des personnes scolarisées et les niveaux de diplôme des personnes non scolarisées. Millésime 2009.

La base infracommunale « Activité des résidents » fournit des données sur les caractéristiques des actifs (sexe, âge, catégorie socio-professionnelle), des salariés et non-salariés (sexe et âge).

1. Recent studies unravelled the effect of climate changes on populations through their impact on functional traits and demographic rates in terrestrial and freshwater ecosystems, but such understanding in marine ecosystems remains incomplete. 2. Here, we evaluate the impact of the combined effects of climate and functional traits on population dynamics of a long-lived migratory seabird breeding in the southern ocean: the black-browed albatross (Thalassarche melanophris, BBA). We address the following prospective question: ''Of all the changes in the climate and functional traits, which would produce the biggest impact on the BBA population growth rate?'' 3. We develop a structured matrix population model that includes the effect of climate and functional traits on the complete BBA life cycle. A detailed sensitivity analysis is conducted to understand the main pathway by which climate and functional trait changes affect the population growth rate. 4. The population growth rate of BBA is driven by the combined effects of climate over various seasons and multiple functional traits with carry-over effects across seasons on demographic processes. Changes in Sea Surface Temperature (SST) during late winter cause the biggest changes in the population growth rate, through their effect on juvenile survival. Adults appeared to respond to changes in winter climate conditions by adapting their migratory schedule rather than by modifying their at-sea foraging activity. However, the sensitivity of the population growth rate to SST affecting BBA migratory schedule is small. BBA foraging activity during the pre-breeding period has the biggest impact on population growth rate among functional traits. Finally, changes in SST during the breeding season have little effect on the population growth rate. 5. These results highlight the importance of early life histories and carry-over effects of climate and functional traits on demographic rates across multiple seasons in population response to climate change. Robust conclusions about the roles of various phases of the life cycle and functional traits in population response to climate change rely on an understanding of the relationships of traits to demographic rates across the complete life cycle.

Thème 'logement' du RP 2010

POPP datasets

This repository contains 3 datasets created within the POPP project (Project for the Oceration of the Paris Population Census) for the task of handwriting text recognition. These datasets have been published in Recognition and information extraction in historical handwritten tables: toward understanding early 20th century Paris census at DAS 2022.

The 3 datasets are called “Generic dataset”, “Belleville”, and “Chaussée d’Antin” and contains lines made from the extracted rows of census tables from 1926. Each table in the Paris census contains 30 rows, thus each page in these datasets corresponds to 30 lines.

The structure of each dataset is the following:

• double-pages : images of the double pages
• pages:
  • images: images of the pages
  • xml: METS and ALTO files of each page containing the coordinates of the bounding boxes of each line
• lines: contains the labels in the file labels.json and the line images splitted into the folders train, valid and test. The double pages were scanned at a resolution of 200dpi and saved as PNG images with 256 gray levels. The line and page images are shared in the TIFF format, also with 256 gray levels.

Since the lines are extracted from table rows, we defined 4 special characters to describe the structure of the text:

• ¤ : indicates an empty cell
• / : indicates the separation into columns
• ? : indicates that the content of the cell following this symbol is written above the regular baseline
• ! : indicates that the content of the cell following this symbol is written below the regular baseline

We provide a script format_dataset.py to define which special character you want to use in the ground-truth.

The split for the Generic Dataset and Belleville have been made at the double-page level so that each writer only appears in one subset among train, evaluation and test. The following table summarizes the splits and the number of writers for each dataset:

Generic dataset (or POPP dataset)

• This dataset is made 4800 annotated lines extracted from 80 double pages of the 1926 Paris census.
• There is one double page for each of the 80 districts of Paris
• There is one writer per double page so the dataset contains 80 different writers.

Belleville dataset

This dataset is a mono-writer dataset made of 1470 lines (49 pages) from the Belleville district census of 1926.

Chaussée d’Antin dataset

This dataset is a multi-writer dataset made of 780 lines (26 pages) from the Chaussée d’Antin district census of 1926 and written by 10 different writers.

Error reporting

It is possible that errors persist in the ground truth, so any suggestions for correction are welcome. To do so, please make a merge request on the Github repository and include the correction in both the labels.json file and in the XML file concerned.

Citation Request

If you publish material based on this database, we request you to include a reference to paper T. Constum, N. Kempf, T. Paquet, P. Tranouez, C. Chatelain, S. Brée, and F. Merveille,Recognition and information extraction in historical handwritten tables: toward understanding early 20th century Paris census ,Document Analysis Systems (DAS), pp. 143- 157, La Rochelle, 2022.

Marine organisms show population structure at a relatively fine spatial scale, even in open habitats. The tools commonly used to assess subtle patterns of connectivity have diverse levels of resolution. We have assessed the discriminatory power of genetic markers and otolith shape to reveal the population structure of the common sole (Solea solea), living in the Eastern English Channel stock off France and the UK. The aims were to (i) inform the short and long-term population structure by comparing genetic and otolith shape approaches, and (ii) combine the tracers in a single analysis to assess the interest of a combined approach. First, we applied Single Nucleotide Polymorphisms to assess population structure at an evolutionary scale. Then, we tested for spatial segregation of the subpopulations using otolith shape as an integrative tracer of life history. Finally, we combined the genotypes and otolith phenotypes in a supervised machine learning framework to probabilistically assign adults to subpopulations. Genetic assignments and otolith shape analyses provided congruent results suggestive of a metapopulation structure for the common sole of the Eastern English Channel. Despite congruent results from genetics and otolith shape, the combined analysis did not provide realistic reallocation probabilities. Our findings support the idea that independent analyses of tracers provide fruitful insights and that a combined approach should be preferred when a large and balanced number of fish is available for each tracer analyzed.

Thème 'diplômes - formation' du RP 2010

Comptage des plageurs sur les plages de Ré, Oléron et les principales plages de La Rochelle à Fouras et également l'île d'Aix, dans l'objectif de connaître la fréquentation des plages

Couche ponctuelle localisant les lieux d'accueil de la petite enfance sur le territoire de la communauté d'Agglomération de La Rochelle (Crêches, Garderies, PMI, etc.).

Cette donnée n'est pas exhaustive.

Couche d’intérêt et d'habillage.

Les données sont issues des données du SDIS17 transmises en juin 2015 : - Les objets surfaciques sont transformés en points (au centre des polygones), - les bases de données sont allégées - Les données sont regroupées avec des dénominations différentes.

Liste des conseils de secteur

Implantation des mairies annexes

Environmental conditions can shape genetic and morphological divergence. Release of new habitats during historical environmental changes was a major driver of evolutionary diversification. Here, forces shaping population structure and ecotype differentiation (‘pelagic’ and ‘coastal’) of bottlenose dolphins in the North-east Atlantic were investigated using complementary evolutionary and ecological approaches. Inference of population demographic history using approximate Bayesian computation indicated that coastal populations were likely founded by the Atlantic pelagic population after the Last Glacial Maxima probably as a result of newly available coastal ecological niches. Pelagic dolphins from the Atlantic and the Mediterranean Sea likely diverged during a period of high productivity in the Mediterranean Sea. Genetic differentiation between coastal and pelagic ecotypes may be maintained by niche specializations, as indicated by stable isotope and stomach content analyses, and social behaviour. The two ecotypes were only weakly morphologically segregated in contrast to other parts of the World Ocean. This may be linked to weak contrasts between coastal and pelagic habitats and/or a relatively recent divergence. We suggest that ecological opportunity to specialize is a major driver of genetic and morphological divergence. Combining genetic, ecological and morphological approaches is essential to understanding the population structure of mobile and cryptic species.

Dictionnaire de données du thème 'population' du RP 2008