Application of Ecological Models in Management of Aquatic Inland Ecosystems

2012 ◽  
pp. 357-410
Keyword(s):  
Ecological Models

Impact of long-term trials on crop production research and education

2010 ◽  
Vol 58 (Supplement 1) ◽  
pp. 1-5 ◽  
Author(s):  
M. Jolánkai ◽  
F. Nyárai ◽  
K. Kassai
Keyword(s):  
Crop Production ◽  
Life Sciences ◽  
Ecological Models ◽  
Dynamic Databases ◽  
Production Research ◽  
Research And Education

Long-term trials have a twofold role in life sciences, acting as both live laboratories and public collections. Long-term trials are not simply scientific curios or the honoured relics of a museum, but highly valuable live ecological models that can never be replaced or restarted if once terminated or suspended. These trials provide valuable and dynamic databases for solving scientific problems. The present paper is intended to give a brief summary of the crop production aspects of long-term trials.

scholarly journals Individual socioeconomic and neighborhood factors predict changes in sports activity during the transition to retirement

2021 ◽  
Vol 18 (1) ◽  
Author(s):  
Dorothee Jürgens ◽  
Benjamin Schüz
Keyword(s):  
Multinomial Logistic Regression ◽  
Ecological Models ◽  
Occupational Prestige ◽  
Sports Activity ◽  
Neighborhood Factors ◽  
Multinomial Logistic Regression Analysis ◽  
Social Ecological ◽  
Transition To Retirement ◽  
Potential Interactions

Abstract Background There are substantial socioeconomic status (SES) differences in sports activity (SA) during the transition to retirement. In line with social-ecological models, the aim of this longitudinal study was to examine the association of perceptions of social and physical neighborhood factors with changes in SA across the retirement transition and to examine potential interactions with SES factors. Methods Data from 6 waves of the German Ageing Survey (DEAS) provided 710 participants (at baseline: mean age 61.1, 52.9% of men) who retired between baseline (1996, 2002, 2008, 2011) and their 6-year follow-up assessment. Associations between changes in SA (increases and decreases compared to retaining) and individual SES and neighborhood factors were estimated using multinomial logistic regression analysis. Results Increases were observed in 18.45% of participants, decreases in 10%. Occupational prestige was a risk factor for decreases, education a resource for increases in SA. Interactions between household income and several neighborhood factors were observed. Conclusions In line with social-ecological models, individual, neighborhood factors and interacting associations were found. In particular safety perceptions could be a resource for promotion SA in older adults who experience disadvantage.

Anthropology and the Anthropocene: Criticisms, Experiments, and Collaborations

2020 ◽  
Vol 49 (1) ◽  
pp. 67-82 ◽  
Author(s):  
Andrew S. Mathews
Keyword(s):  
Environmental Change ◽  
Human Impacts ◽  
Ecological Models ◽  
World Systems ◽  
Temporal Scales ◽  
The World ◽  
Capitalist World ◽  
Natural Histories ◽  
Historical Epoch

The Anthropocene, a proposed name for a geological epoch marked by human impacts on global ecosystems, has inspired anthropologists to critique, to engage in theoretical and methodological experimentation, and to develop new forms of collaboration. Critics are concerned that the term Anthropocene overemphasizes human mastery or erases differential human responsibilities, including imperialism, capitalism, and racism, and new forms of technocratic governance. Others find the term helpful in drawing attention to disastrous environmental change, inspiring a reinvigorated attention to the ontological unruliness of the world, to multiple temporal scales, and to intertwined social and natural histories. New forms of noticing can be linked to systems analytics, including capitalist world systems, structural comparisons of patchy landscapes, infrastructures and ecological models, emerging sociotechnical assemblages, and spirits. Rather than a historical epoch defined by geologists, the Anthropocene is a problem that is pulling anthropologists into new forms of noticing and analysis, and into experiments and collaborations beyond anthropology.

scholarly journals Detecting Tipping points in Ecological Models with Sensitivity Analysis

2016 ◽  
Vol 11 (4) ◽  
pp. 47-72 ◽  
Author(s):  
G.A. ten Broeke ◽  
G.A.K. van Voorn ◽  
B.W. Kooi ◽  
J. Molenaar
Keyword(s):  
Sensitivity Analysis ◽  
Ecological Models ◽  
Tipping Points
Sign in / Sign up

Export Citation Format

Share Document