منابع مشابه
Social learning in otters
The use of information provided by others to tackle life's challenges is widespread, but should not be employed indiscriminately if it is to be adaptive. Evidence is accumulating that animals are indeed selective and adopt 'social learning strategies'. However, studies have generally focused on fish, bird and primate species. Here we extend research on social learning strategies to a taxonomic ...
متن کاملHashish revival in Morocco.
BACKGROUND In less than a decade, Morocco reportedly saw cannabis cultivation decrease by 65%, and hashish production is widely believed to have followed the same trend. Yet large anomalies exist between the alleged fall of hashish production in Morocco and international seizure data. While no explanation for such a discrepancy existed, the main hypothesis was that cannabis cultivation and hash...
متن کاملControlling Trachoma in Morocco
H e a l t h C o n d i t i o n : In 1992, a national survey found that just over 5 percent of Morocco’s population had the blinding disease trachoma. Nearly all the cases were concentrated in five poor, rural provinces in the southeast of the country where 25,000 people showed a serious decline in vision due to trachoma, 625,000 needed treatment for inflammatory trachoma, and 40,000 urgently nee...
متن کاملSea otters in a dirty ocean.
The connection between the health of humans, animals, and the environments in which they live have been well recognized and have recently been referred to as one health, one medicine. An example of the interconnectedness of human, animal, and ecosystem health is provided by the situation facing southern sea otters off the US Pacific coast.
متن کاملNutrition transition in Morocco.
OBJECTIVE To analyse the nutritional transition in Morocco. DESIGN Examination of Moroccan national survey data. RESULTS Morocco is undergoing a demographic, epidemiological and social transition. The urban population increased from 29% in 1960 to 53% in 1997. Per capita gross domestic product increased steadily from 1972 to 1999. Life expectancy at birth increased to 70 years in 1999 from ...
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ژورنال
عنوان ژورنال: Oryx
سال: 1984
ISSN: 0030-6053,1365-3008
DOI: 10.1017/s0030605300019013