A Commentary on Bison and Cultural Restoration: Partnership Between the National Wildlife Federation and the Intertribal Bison Cooperative

In January 1997 the National Wildlife Federation and the InterTribal Bison Cooperative signed a memorandum of understanding formally recognizing our common goals of ending the slaughter of Yellowstone bison and working to repatriate buffalo to Native American reservations. It was the first time a formal relationship had ever been established between Native Americans and a national conservation organization. The partnership had two goals. The first goal was to reestablish management of North American bison as one of the premier wildlife species of the West, by restoring bison to those tribal and public land habitats capable of supporting their long-term survival. The second goal was to enhance the availability of wild bison to Native Americans for cultural and subsistence uses. Our partnership has been a rallying point for bison advocates and illustrates the importance of repatriating bison to tribal lands. The partnership also presented opportunities for Native Americans to demonstrate their management capabilities and to affirm the importance of bison to the health of Indian people and the vitality of their culture. Our work together has opened up many new conservation avenues. One example is the National Wildlife Federation\u27s recent involvement with the newly established InterTribal Prairie Ecosystem Restoration Consortium, assisting with the development of prairie dog management plans on Indian reservations. Here we summarize the results of our partnership and look to the future of conservation and restoration of natural resources on tribal lands

CRH – Approches historiques des mondes contemporains (AhMoC)

Stéphane Audoin-Rouzeau, Marc Olivier Baruch, Christophe Prochasson, Paul-André Rosental, directeurs d’étudesLaura Lee Downs, directrice d’étudesJordi Canal, maître de conférencesVincent Duclert, professeur agrégéMarie-Laurence Netter, ingénieure d’étudesAlain Chatriot, chargé de recherche au CNRSPerrine Simon-Nahum, chargée de recherche au CNRS Histoire politique du contemporain Le programme du séminaire reposait cette année sur une série d’interrogations générales relatives à la recherche e..

Approches historiques des mondes contemporains – AhMoC

Stéphane Audoin-Rouzeau, Marc Olivier Baruch, Jacques Julliard, Laura Lee Downs, Christophe Prochasson, Paul-André Rosental, directeurs d’étudesIsabelle Backouche, Jordi Canal, maîtres de conférencesVincent Duclert, professeur agrégéMarie-Laurence Netter, ingénieur d’étudesAlain Chatriot et Perrine Simon-Nahum, chargés de recherche au CNRS L’histoire politique. État des lieux Cette année, le séminaire s’est concentré sur l’historiographie de la gauche. En 2003-2004, on s’était penché sur les ..

Montlaurès et son territoire à l'âge du Fer

Identifiant de l'opération archéologique : Date de l'opération : 1998 - 2000 (FP) ; 1998 (PT) ; 1996 (PT) ; 1991 - 1995 (FP) ; 1960 - 1964 (SD) Inventeur(s) : Chazelles Claire-Anne de (CNRS) ; Héléna Philippe ; Giry Joseph ; Solier Yves ; Mauné Stéphane ; Sanchez Corinne ; Ropiot Véronique ; Ugolini Daniela ; Genis-Armada Maria-Theresa ; Canal-Barcalà David ; Sternberg Myriam ; Chabal Lucie ; Grau Marina (Étudiant DEA et doctorant) ; Rescanières Sébastien (Étudiant DEA et doctorant) ; Jorda ..

Global Roadkill Data: a dataset on terrestrial vertebrate mortality caused by collision with vehicles

Roadkill is widely recognized as one of the primary negative effects of roads on many wildlife species and also has socioeconomic impacts when they result in accidents. A comprehensive dataset of roadkill locations is essential to evaluate the factors contributing to roadkill risk and to enhance our comprehension of its impact on wildlife populations and socioeconomic dimensions. We undertook a compilation of roadkill records, encompassing both published and unpublished data gathered from road surveys or opportunistic sources. GLOBAL ROADKILL DATA includes 208,570 roadkill records of terrestrial vertebrates from 54 countries across six continents, encompassing data collected between 1971 and 2024. This dataset serves to minimise the collection of redundant data and acts as a valuable resource for local and macro scale analysis regarding rates of roadkill, road- and landscape-related features associated with risk of roadkill, vulnerability of species to road traffic, and populations at risk of local extinction. The objective of this dataset is to promote scientific progress in infrastructure ecology and terrestrial vertebrate conservation while limiting the socio-economic costs

Rangeland herd and herder mobility in dry intertropical zones : multi-agent systems and adaptation

In the Sahel, the question of interactions between rangeland herding practices and the environment lies at the hert of the debate concerning sustainable development. There is disagreement about the question of Sahelian herd mobility, which remains necessary for some while for others it is outmoded, and which is judged in terms of its environmental impact. There are also many questions regarding the influence of socio-economic policies on herder behaviour. [...] We performed two modelling experiment on the theme of mobility as a means of adaptation. The first experiment studies the relation between movement strategies and the dynamics of resources in space, while the second studies the social relations maintained by herders in order to botain access to rangelands and water. To this end, we used the multi-agent modelling method. This method is based on the representation of entites which interact directly with each other or via the environment. In this article, we present the methods and describe the two modelling experiments. We conclude with a discussion on the use of such models. (Résumé d'auteur

Oxidative stress does not play a primary role in the toxicity induced with clinical doses of doxorubicin in myocardial H9c2 cells

International audienceThe implication of oxidative stress as primary mechanism inducing doxorubicin (DOX) cardiotoxicity is still questionable as many in vitro studies implied supra-clinical drug doses or unreliable methodologies for reactive oxygen species (ROS) detection. The aim of this study was to clarify whether oxidative stress is involved in compliance with the conditions of clinical use of DOX, and using reliable tools for ROS detection. We examined the cytotoxic mechanisms of 2 μM DOX 1 day after the beginning of the treatment in differentiated H9c2 rat embryonic cardiac cells. Cells were exposed for 2 or 24 h with DOX to mimic a single chronic dosage or to favor accumulation, respectively. We found that apoptosis was prevalent in cells exposed for a short period with DOX: cells showed typical hallmarks as loss of anchorage ability, mitochondrial hyperpolarization followed by the collapse of mitochondrial activity, and nuclear condensation. Increasing the exposure period favored a shift to necrosis as the cells preferentially exhibited early DNA impairment and nuclear swelling. In either case, measuring the fluorescence lifetime of 1-pyrenebutyric acid or the intensities of dihydroethidium or amplex red showed a consistent pattern in ROS production which was a slight increased level far from representative of an oxidative stress. Moreover, pre-treatment with dexrazoxane provided a cytoprotective effect although it failed to detoxify ROS. Our data support that oxidative stress is unlikely to be the primary mechanism of DOX cardiac toxicity in vitro

Generation of Mice with Hepatocyte-Specific Conditional Deletion of Notum

International audienceBackgroun