The population demography of the northern short-tailed shrew, Blarina brevicauda (Say, 1823), was studied for 25 years in bluegrass, alfalfa, and tallgrass habitats in east-central Illinois. The population in bluegrass had higher over-winter population density, began increasing earlier in the year, peaked earlier in the year, had higher mean monthly densities and amplitudes of fluctuation, and ...

Compensation due to density-dependent mechanisms is essential for the maintenance of an exploited fish stock. Understanding compensation is important for understanding population regulation and responses to added mortality. We examined possible density-dependent effects on striped bass (Morone saxatilis) in the San Francisco Estuary. Three sets of data from sampling programs for young striped b...

L'oubli d'un corps étranger textile est toujours possible au cours d'une chirurgie abdominale malgré les précautions draconiennes prises. La multiplicité et le manque de spécificité de ses présentations rendent son diagnostic difficile. Le meilleur traitement reste la prévention par le compte systématique des textiles et l'utilisation exclusive de compresses marquées, l'oubli d'une compresse ét...