@article {9920, title = {Six ann{\'e}es de suivi satellitaire des migrations pr{\'e} et post nuptiales d{\textquoteright}une Cigogne noire Ciconia nigra}, journal = {Alauda}, volume = {92}, year = {2024}, month = {06/2024}, pages = {53-62}, abstract = {The six years of satellite monitoring of the Black Stork Anth{\'e}a provided unprecedented data on the migration trajectories of the same individual. This preliminary study highlighted differences
in spring and autumn migratory trajectories in Africa and Europe. The results show that the total migration duration does not differ significantly between seasons, but prenuptial migration is longer and slower than postnuptial migration. The average daily speed in postnuptial migration is higher, probably due to the influence of the prevailing winds. Latitude influences speed, with a decrease north of 30{\textdegree}N, linked to more powerful thermal updrafts in Africa. The distances traveled in Africa present distinctive characteristics linked to the scarcity of resources, influencing the daily speed. Migratory stopovers are more frequent and last longer during prenuptial migration, probably to meet increased energetic needs.
Anth{\'e}a showed, during these 6 years of monitoring, fidelity to wintering and breeding sites, although routes and stopovers vary between spring and autumn migrations due to meteorological factors and competition for resources in Africa. This study highlights the crucial importance of continuing research on the Black Stork to better understand its ecological needs. The information collected can guide habitat management, identify essential migratory corridors and encourage international cooperation to protect this endangered species. This knowledge is essential to ensure the long-term survival of the Black Stork and preserve the richness of our natural heritage}, keywords = {Africa., Ciconia nigra, Europe, pre and postnuptial migrations, Satellite monitoring}, issn = {0002-4619}, author = {Mohamed Lemine, MOHAMED HACEN and Paul, BROSSAULT and Ould Aveloitt, MOHAMED and Mohamed Mahmoud, ABIDINE and Cheikh, YEBOUK and Ould Sidaty, ZEIN EL ABIDINE and Abdeljabbar, QNINBA and Mohamed, FEKHAOUI and Chevallier, Damien} } @article {8449, title = {Passive rewilding may (also) restore phylogenetically rich and functionally resilient forest plant communities.}, journal = {Ecol Appl}, volume = {30}, year = {2020}, month = {2020 01}, pages = {e02007}, abstract = {

Passive rewilding is increasingly seen as a promising tool to counterbalance biodiversity losses and recover native forest ecosystems. One key question, crucial to understanding assembly processes and conservation issues underlying land-use change, is the extent to which functional and phylogenetic diversity may recover in spontaneous recent woodlands. Here, we compared understorey plant communities of recent woodlands (which result from afforestation on agricultural lands during the 20th century) with those of ancient forests (uninterrupted for several centuries) in a hotspot of farmland abandonment in western Europe. We combined taxonomic, functional, and phylogenetic diversity metrics to detect potential differences in community composition, structure (richness, divergence), conservation importance (functional originality and specialization, evolutionary distinctiveness) and resilience (functional redundancy, response diversity). The recent and ancient forests harbored clearly distinct compositions, especially regarding the taxonomic and phylogenetic facets. Recent woodlands had higher taxonomic, functional and phylogenetic richness and a higher evolutionary distinctiveness, whereas functional divergence and phylogenetic divergence were higher in ancient forests. On another hand, we did not find any significant differences in functional specialization, originality, redundancy, or response diversity between recent and ancient forests. Our study constitutes one of the first empirical pieces of evidence that recent woodlands may spontaneously regain plant communities phylogenetically rich and functionally resilient, at least as much as those of ancient relict forests. As passive rewilding is the cheapest restoration method, we suggest that it should be a very useful tool to restore and conserve native forest biodiversity and functions, especially when forest areas are restricted and fragmented.

}, keywords = {Biodiversity, Ecosystem, Europe, Forests, Phylogeny}, issn = {1051-0761}, doi = {10.1002/eap.2007}, author = {Morel, Lo{\"\i}s and Barbe, Lou and Jung, Vincent and Cl{\'e}ment, Bernard and Schnitzler, Annik and Fr{\'e}d{\'e}ric Ysnel} }