162,733 research outputs found
Savants et chrétiens ou Étude sur l'origine et la filiation des sciences, par le R. P. Th. Ortolan
F. J. Savants et chrétiens ou Étude sur l'origine et la filiation des sciences, par le R. P. Th. Ortolan. In: Revue néo-scolastique. 5ᵉ année, n°17, 1898. pp. 98-100
Savants et chrétiens ou Étude sur l'origine et la filiation des sciences, par le R. P. Th. Ortolan
F. J. Savants et chrétiens ou Étude sur l'origine et la filiation des sciences, par le R. P. Th. Ortolan. In: Revue néo-scolastique. 5ᵉ année, n°17, 1898. pp. 98-100
Habitat selection by Ortolan Buntings Emberiza hortulana in post-fire succession in Catalonia: implications for the conservation of farmland populations
The Ortolan Bunting Emberiza hortulana is a long-distance migrant that has suffered major population declines across much of its European breeding range. While northern populations are bound largely to farmland, Mediterranean populations are largely confined to habitats subject to recurrent wildfires. Habitat selection of the Ortolan Bunting was assessed in a recently burnt area in Catalonia at landscape and habitat scales. A Zero-inflated Poisson procedure was used to model the abundance of birds in relation to landscape and habitat variables. The most parsimonious landscape model predicted the highest abundance on south-facing slopes, with a gradient above 10°. The most parsimonious habitat model showed a positive quadratic effect of bare ground and regenerating oak Quercus spp., with predicted optima for abundance around 20-30% and 20% cover, respectively. There was a clear relationship between predicted abundance of the Ortolan Bunting and post-fire regenerating oak shrubs. South-facing, moderately sloping areas were favoured and bare ground was a key feature of the species' habitat. A matrix combining patches of sparse oak shrubs and patches of bare ground appears to be the optimal breeding habitat in the Mediterranean. The maintenance or provision of similar habitat features, especially patches of bare ground, may prove crucial for the conservation of rapidly declining Ortolan Bunting populations on farmland across temperate Europe
[Report to Chief J. E. Curry, by an unknown author #1]
Report to Chief J. E. Curry, by an unknown author. The report contains a list of officers who gave depositions to the United States Attorney
[Report to Chief J. E. Curry, by an unknown author #2]
Report to Chief J. E. Curry, by an unknown author. The report contains a list of officers who gave depositions to the United States Attorney
Unravelling migration connectivity reveals unsustainable hunting of the declining ortolan bunting
In France, illegal hunting of the endangered ortolan bunting Emberiza hortulana has been defended for the sake of tradition and gastronomy. Hunters argued that ortolan buntings trapped in southwest France originate from large and stable populations across the whole of Europe. Yet, the European Commission referred France to the Court of Justice of the European Union (EU) in December 2016 for infringements to legislation (IP/16/4213). To better assess the impact of hunting in France, we combined Pan-European data from archival light loggers, stable isotopes, and genetics to determine the migration strategy of the species across continents. Ortolan buntings migrating through France come from northern and western populations, which are small, fragmented and declining. Population viability modeling further revealed that harvesting in southwest France is far from sustainable and increases extinction risk. These results provide the sufficient scientific evidence for justifying the ban on ortolan harvesting in France
Législation romaine. Tome 1 / par J. Ortolan
Contient une table des matièresAvec mode text
Législation romaine. Edition 10 / par J. Ortolan
Contient une table des matièresAvec mode text
What are the important landscape components for habitat selection of the ortolan bunting Emberiza hortulana in northern limit of range?
Ortolan buntings Emberiza hotulana have undergone one of the most severe population declines of any European
farmland bird over the last thirty years. The aim of this study was to find out which habitat features, including
crop characteristics, ortolan bunting prefers in Estonia in breeding areas. This study compared currently
occupied and unoccupied ortolan bunting territories. Occupied areas contained significantly more tall broadleaf
trees, crop types, structural elements (trees, bushes, roads, overhead power lines and buildings) and spring
wheat, but also had lower crop drilling densities. Ortolan bunting territories were best described by a logistic
regression model containing six variables: amount of structural point elements, length of power lines, amount
of tall broadleaf trees and number of different crops had a positive effect, whereas crop density and area of
autumn-sown crops had a negative effect. Based on the findings of this study, the following conservation measures
can be recommended: lower crop densities; spring rather than autumn-sown crops; small-field systems
containing a variety of crops; scattered scrub preserved or planted; habitat patches of permanent grasslands,
hedges and tall broadleaf trees retained within the agricultural landscape
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