نتایج جستجو برای: ecological systems

تعداد نتایج: 1270098  

Journal: :Technology audit and production reserves 2012

Journal: :F1000 Biology Reports 2011

2008
Astero Provata Igor M. Sokolov Bernardo Spagnolo

Astero Provata, Igor M. Sokolov, and Bernardo Spagnolo ♯ Institute of Physical Chemistry, National Center for Scientific Research ”Demokritos”, 15310 Athens, Greece ∗ Institut fur Physik, Humboldt-Universitat zu Berlin, Newtonstr. 15, D-12489 Berlin † and ⋆ Dipartimento di Fisica e Tecnologie Relative and CNISM-INFM, Group of Interdisciplinary Physics, Università di Palermo, Viale delle Scienze...

Journal: :Oceans 2022

It is widely recognized that humanity currently facing multiple planetary crises, including the widespread loss of biodiversity and a rapidly changing climate. The impacts these crises are often far reaching threaten food security (SDG goal two: zero hunger). Small-scale fisheries estimated to provide livelihoods for over one hundred million people sustenance approximately billion but face plet...

2017
Sheila Mammen Jean W. Bauer Leslie Richards

Survey data from a USDA-funded multi-state longitudinal project revealed a paradox where rural low-income families from states considered prosperous were persistently more food insecure than similar families from less prosperous states. An examination of quantitative and qualitative data found that families in the food insecure states were more likely to experience greater material hardship and...

2004
Gerald J. Niemi Michael E. McDonald

Ecological indicators have widespread appeal to scientists, environmental managers, and the general public. Indicators have long been used to detect changes in nature, but the scientific maturation in indicator development primarily has occurred in the past 40 years. Currently, indicators are mainly used to assess the condition of the environment, as early-warning signals of ecological problems...

2011
Julee P. Farley

As supported by ecological systems theory and the family stress model of economic hardship, socioeconomic status can directly be related to adolescent adjustment outcomes including selfregulation, academic performance, and substance use as well as be indirectly related to these outcomes through the mediator of parental monitoring. Data obtained from 220 adolescent (male = 55%, female = 45%, mea...

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