نتایج جستجو برای: sustainable size
تعداد نتایج: 674954 فیلتر نتایج به سال:
the aim of the present study was to determine the in?uence of presence or absence of corpus luteum (cl) on hormonal and metabolites composition of follicular ?uid (ff) harvested from different sized follicles and its relationship with blood serum concentrations in sanjabi ewes. ovaries and blood samples were collected from 60 clinically healthy adult ewes (sanjabi breed) 1–3 years of age in dio...
1 – introductiontourism is a powerful force of change in the economy in both the developed and in the least developed countries. due to the formation of the concept of sustainable development, tourism industry as well as like other industries has been seeking ways to further alignment with the concept. sustainable tourism as a form of alternative tourism, is seeking to improve the quality of li...
As society strives to transition towards more sustainable development pathways, it is important to properly conceptualize the link between biodiversity (i.e. genes, traits, species and other dimensions) and human well-being (HWB; i.e. health, wealth, security and other dimensions). Here, we explore how published conceptual frameworks consider the extent to which the biodiversity-HWB links are b...
The possibility of using bioenergy as a climate change mitigation measure has sparked a discussion of whether and how bioenergy production contributes to sustainable development. We undertook a systematic review of the scientific literature to illuminate this relationship and found a limited scientific basis for policymaking. Our results indicate that knowledge on the sustainable development im...
The need for monitoring countries’ overall performance in sustainable development (SD) is widely recognized, but the methods for aggregating vast amounts of empirical data remain rather crude. This paper examines the so-called ‘benefit of doubt’ weighting method as a tool for identifying benchmarks without imposing strong normative judgement about SD priorities. The weighting method involves li...
The present descriptive survey aims to analyze sustainable rural livelihood in Langarud County of Guilan province, Iran. The statistical population was composed of all rural people in this county (N=37904). Convenience sampling used to determine sample size (n=180). They were selected by proportionally allocated random sampling method. The research instrument was a self-designed questionnaire w...
Fishery management plans ignore the potential for evolutionary change in harvestable biomass. We subjected populations of an exploited fish (Menidia menidia) to large, small, or random size-selective harvest of adults over four generations. Harvested biomass evolved rapidly in directions counter to the size-dependent force of fishing mortality. Large-harvested populations initially produced the...
Major events in the institutionalization of macromarketing include (1) the series of macromarketing conferences that began at the University of Colorado in 1976, (2) the founding of the Journal of Macromarketing in 1981, and (3) the establishment of the Macromarketing Society in 2004. This article focuses on the continuing institutionalization of macromarketing by providing a commentary on Mark...
It has been demonstrated repeatedly that the degree to which regulation operates and the magnitude of environmental variation in an exploited population will together dictate the type of sustainable harvest achievable. Yet typically, harvest models fail to incorporate uncertainty in the underlying dynamics of the target population by assuming a particular (unknown) form of endogenous control. W...
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