منابع مشابه
Rethinking Rapid Re-housing: toward Sustainable Housing for Homeless Populations
LAURIE BALL COOPER & ANA VOHRYZEK INTRODUCTION ......................................................................................................................................... 308 I. A BRIEF OVERVIEW OF THE D.C. HOMELESS POPULATION ........................................................ 312 A. Characteristics of D.C.’s Homeless Population Based on the 2015 Point-in-Time Survey ..... 3...
متن کاملSustainable Festival Populations: an Application of Organizational Ecology
This article addresses the sustainability of festival populations from the perspective of organizational ecology theory, and in particular age and density dependence. Data from whole populations of festivals in three Norwegian counties are examined. Analyses of festival start-ups demonstrate that the number of events in each county had risen faster than population growth before plateauing, and ...
متن کاملThe Ultimate - Sustainable - Yield Problem in Nonlinear Age - Structured Populations
The Beverton-Holt theory of harvesting a multicohort fishery subject to constant recruitment, and the Leslie matrix harvesting model modified to include a nonlinear stock-recruitment relationship, are extended and shown to be related through the ultimate-sustainable-yield problem for an age-structured population. The well-known result that the optimal harvesting policy for the Leslie matrix mod...
متن کاملEstimating sustainable bycatch rates for California sea lion populations in the Gulf of California.
Commercial and subsistence fisheries pressure is increasing in the Gulf of California, Mexico. One consequence often associated with high levels of fishing pressure is an increase in bycatch of marine mammals and birds. Fisheries bycatch has contributed to declines in several pinniped species and may be affecting the California sea lion (Zalophus californianus) population in the Gulf of Califor...
متن کاملMeasuring the invisible: Analysis of the Sustainable Development Goals in relation to populations exposed to drought.
Brazil, together with all the member countries of the United Nations, is in a process of adoption of a group of Sustainable Development Goals, including targets and indicators. This article considers the implications of these goals and their proposed targets, for the Semi-Arid region of Brazil. This region has recurring droughts which may worsen with climate change, further weakening the situat...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Nature
سال: 1992
ISSN: 0028-0836,1476-4687
DOI: 10.1038/356294c0