Search results for "ecological system"

Network Analysis: Ten Years Shining Light on Host–Parasite Interactions

2020

Biological interactions are key drivers of ecological and evolutionary processes. The complexity of such interactions hinders our understanding of ecological systems and our ability to make effective predictions in changing environments. However, network analysis allows us to better tackle the complexity of ecosystems because it extracts the properties of an ecological system according to the number and distribution of links among interacting entities. The number of studies using network analysis to solve ecological and evolutionary questions in parasitology has increased over the past decade. Here, we synthesise the contribution of network analysis toward disentangling host-parasite proces…

La teoria ecològica del desenvolupament: un marc teòric per a la comprensió del comportament humà

2008

L'any 2009 es van complir 30 anys de la publicació del llibre The Ecology of Human Development d'Urie Bronfenbrenner (1917-2005). Aquesta obra va signifi car la síntesi del pensament d'aquest autor, que ja havia esbossat en textos anteriors, i el punt de referència d'una teoria estimulant sobre el comportament humà. La idea bàsica de Bronfenbrenner és que el desenvolupament de l'individu es troba condicionat per les característiques dels entorns en què té lloc, és a dir, l'ésser humà es «fa» en interacció dinàmica amb els seus contextos i en el marc de les relacions entre aquests. Malgrat la rellevància teòrica i metodològica d'aquesta aportació, continua resultant poc coneguda per a una ma…

Ecological approach and community education as promoters of the social development of reform school students

1995

ABSTRACT New models of operation are being sought for Finnish reform school education traditionally based on segregation. This article deals with the possibilities of applying the ecological approach and community education to support the socialization of reform school students. The aim is to describe the participation of the students in one Finnish reform school, as well as their expressed need to join in the production system, cultural system, contact system and the decision‐making system of society. This article presents part of a larger project carried out at the University of Jyvaskyla in Finland. In the research project a three‐part division in the description into an ideal state, a r…

Potential for cascading impacts of environmental change and policy on indigenous culture.

2022

AbstractGlobal environmental and societal changes threaten the cultures of indigenous peoples and local communities (IPLC). Despite the importance of IPLC worldviews and knowledge to sustaining human well-being and biodiversity, risks to these cultural resources are commonly neglected in environmental governance, in part because impacts can be indirect and therefore difficult to evaluate. Here, we investigate the connectivity of values associated with the relationship Ngātiwai (a New Zealand Māori tribe) have with their environment. We show that mapping the architecture of values-environment relationships enables assessment of how deep into culture the impacts of environmental change or pol…

Semi-natural habitats in the European boreal region: Caught in the socio-ecological extinction vortex?

2022

AbstractWe propose to consider semi-natural habitats—hotspots for biodiversity—being caught in a socio-ecological extinction vortex, similar to the phenomenon described for species threatened with extinction. These habitats are essentially socioecological systems, in which socioeconomic drivers are interlinked with ecological processes. We identify four highly interlinked and mutually reinforcing socio-economic processes, pertaining to the importance of semi-natural habitats for (i) agricultural production, (ii) policy, research and development; (iii) vocational education in the fields of agricultural sciences and (iv) public’s experiences with semi-natural habitats. Evidence from six count…

Ocean acidification through the lens of ecological theory

2015

© 2015 by the Ecological Society of America. Ocean acidification, chemical changes to the carbonate system of seawater, is emerging as a key environmental challenge accompanying global warming and other humaninduced perturbations. Considerable research seeks to define the scope and character of potential outcomes from this phenomenon, but a crucial impediment persists. Ecological theory, despite its power and utility, has been only peripherally applied to the problem. Here we sketch in broad strokes several areas where fundamental principles of ecology have the capacity to generate insight into ocean acidification's consequences. We focus on conceptual models that, when considered in the co…

Applying complexity science to air traffic management

2015

Versión aceptada obtenida del archivo digital en línea WestminsterResearch de la Universidad de Westminster. Complexity science is the multidisciplinary study of complex systems. Its marked network orientation lends itself well to transport contexts. Key features of complexity science are introduced and defined, with a specific focus on the application to air traffic management. An overview of complex network theory is presented, with examples of its corresponding metrics and multiple scales. Complexity science is starting to make important contributions to performance assessment and system design: selected, applied air traffic management case studies are explored. The important contexts of…

Perspectives on aerosol deposition to natural surfaces: interactions between aerosol residence times, removal processes, the biosphere and global env…

1990

Abstract This paper summarizes the state-of-the-art and the research needs in the areas of aerosol residence-time assessments, deposition modelling, and understanding of aerosols in biogeochemistry. Research needs are emphasized from a systems perspective of global environmental change. Although fundamental quantitative knowledge is lacking, some qualitative linkages between source strengths, residence times, removal processes and the biosphere can be identified. It turns out that not only are the respective areas as such challenged by new problems, superimposed on the fairly well established conventional ones, but these areas also face mutually operating sets of feedbacks between residence…

An Ecological Theory of Rational Interpretation

2005

Sense of belonging to Latvia in Latvian- and Russian-speaking residents of Latvia

2019

This study examined the sense of belonging to Latvia in Latvian-speaking and Russianspeaking residents of Latvia. The structural model involved opportunities for the fulfillment of personal goals and views of the situation in Latvia and the community as predictors of the sense of belonging at both levels of ecological systems. The Russianspeaking subsample consisted of 202 students ranging in age from 18 to 36 (65% females). The Latvian-speaking subsample involved 438 students ranging in age from 18 to 37 (67% females). The Sense of Belonging in Social Context Questionnaire and the Future of Country Questionnaire were applied. Belonging to community predicted belonging to Latvia in both gro…