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Copyright of Revista Electrónica de Enseñanza de las Ciencias is the property of Revista Electronica de Ensenanza de las Ciencias and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

This documentary research develops a study on the School Environmental Projects Program (PRAE), focusing on its theoretical and pedagogical aspects, and its influence on the formation of environmental subjectivities in the school context. The article advocates for a critical interpretation of environmental education from the principles of ecological ethics and political ecology. It problematizes the instrumental, extractivist, and conservationist approaches that have historically predominated within the field. In methodological terms, the research adopted a framework of documentary analysis, with a dual hermeneutic-emancipatory interest, and divides its structure into two complementary parts: the development of an analytical review on the institutional emergence of the PRAE under educational policies of Decree 1743 of 1994 and the National Policy of Environmental Education of 2004. This constitutes a prelude to the critical evaluation of its qualities and gaps in terms of its capacity to agency ecological subjects. It also explores the pedagogical potential of the categories of subjectivity and experience, as possible catalysts for a transcendental and meaningful environmental education through the PRAE. [ABSTRACT FROM AUTHOR]

Ecomodernists argue that decoupling human well-being of its ecological impacts through a wise use of science and technology is required to reach justice and sustainability in the Anthropocene. This article defends the pertinence of the Capabilities Approach to support normatively this notion by the following way. Firstly, I argue that ecomodernism shares with the Capabilities Approach a specific meaning of human flourishing derived from freedom of choice. Secondly, I present an ecomodernist conception of the Sustainable Ecological Capacity, as well as its links with the capability ceilings to establish the foundations of my proposal. Finally, I conclude that such an exploration brings to a new «weak» ecomodernism, based on a simultaneous application of sufficientarian and limitarian accounts on distributive justice of ecosystem goods and services. [ABSTRACT FROM AUTHOR]

Understanding the benefits of green and blue areas in a city is a key aspect for urban management to simultaneously meet multiple sustainability goals. In this work, the capacity of the ecological infrastructure (EI) of the city of Mar del Plata (Buenos Aires province, Argentina) to provide fourteen types of urban ecosystemservices (UES) was analyzed. To collect the existing knowledge on the subject, an approach based on obtaining local expert knowledge mediated by the Delphi technique was used. The work dynamics consisted of two rounds of anonymous online surveys and an open synchronous workshop in which the previously obtained results were discussed. Twenty-nine local experts from different disciplines were consulted, and they were divided into two groups that worked simultaneously. The results showed the relationships between the EI components and their ability to provide regulation cultural and regulation and maintenance UES. Based on the workshop carried out with local experts it was possible to investigate some properties of the EI that could intervene in the capacity to provide said UES. The local interdisciplinaryknowledge framework developed in this work represents a useful source of information in the current debate that is taking place in the city regarding the planning of sustainable urban contexts. In this sense, the work carried out allowed the extraction of a series of key learnings in the advancement of this research framework that could be useful in the adoption of specific interventions. [ABSTRACT FROM AUTHOR]

Copyright of Revista de la Universidad del Valle de Guatemala is the property of Universidad del Valle de Guatemala and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Knowledge of the flora and usefulness of Andean wetlands for livestock farming is very scarce, which led to interest in evaluating floral diversity, net aerial primary productivity (NAPP), ecological condition and carrying capacity for alpacas (CCA), in three wetlands of the Shullcas sub-basin in Peru. Floristic readings were taken in 10 quadrants distributed in a radial transect in each wetland and at typical times of the rainy and dry seasons. Phytomass cuts were made in regular periods of 30, 60, 90 and 120 days. Fourteen families of vascular plants with 33 genus and 41 species were found, the Shannon Wiener diversity index fluctuated between 2.28 ± 0.15 and 2.40 ± 0.17, the NAPP presented variation between the months evaluated in a range of 27.39 ± 33.73 to 97.86 ± 47.52 g dry material (DM)/m2, between cutoff periods from 132.12 ± 30.42 to 180.60 ± 32.89 g DM/m2 and between wetlands from 116.71 ± 34.6 to 192.18 ± 22.50 g DM/m2, all in good ecological condition; the CCA fluctuated between 1.38 ± 0.36 and 1.80 ± 0.40 alpacas/ha. The result obtained suggests that wetlands should be assessed for frequent periods in the year as a one-time replacement. [ABSTRACT FROM AUTHOR]

Copyright of Observatorio Medioambiental is the property of Universidad Complutense de Madrid and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The rangeland carrying capacity of four fields (about 117,000 ha), located in the Malargüe department, Mendoza was estimated. These areas were included in "La Payunia" phytogeographic province. A floristic unit map was made through the interpretation of the area satellite image. An inventory of plant species was made in each unit and also the grazing degree was visually estimated. Linear transects (358) were distributed at random in the floristic units. The total plant and forage plant cover (%) and the carrying capacity were determined in each floristic unit. These determinations were made in different seasons during 2006 and 2007. The Field I had the greater number of forage species (19 to 30). It could sustain 9,203 goat equivalents (GE) or 1,538 cow equivalents (CE) in spring. In the Field II the number of forage species varied from 7 to 17. It presented the greater percentage of overgrazing area (38%). It could sustain 385 GE or 64 CE and 709 GE or 118 CE in winter and spring, respectively. The Field III had from 14 to 19 forage species. Only the 18% of its area was overgrazing. It could sustain as a minimum (winter) 10,206 GE or 1,715 CE. The Field IV presented the lower number of forage species (7 to 16). It could sustain 2,963 GE or 489 CE. For obtaining more accurate information on the carrying capacity, the evaluations should be made at least during one vegetative cycle (fall-winter and spring-summer). The characteristics of the floristic units of each field and the study of the herbivore diet composition carried out in the study area permitted to recommend the livestock species more adequate for the field use. [ABSTRACT FROM AUTHOR]

Copyright of Archivos de Medicina Veterinaria is the property of Universidad Austral de Chile, Facultad de Ciencias Veterinarias and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The maturity of the tragedy of the Commons means that the irreversibility of degradation and destruction of what we share as Humanity, has reached dimensions of immediacy and concretion never before achieved. Stronger since the 1960s, the scientific legitimacy of the need to control and manage the common has been joined by its social legitimacy. The discussion about what is at the base of the tragedy is shared by various approaches: if it is a demographic issue, or technological or political ones, among others. The answer appears to be a radical change in the styles of development and living, rather than reducing the number of people is needed a more effective distribution of the fruits of evolution, based on values shared by all the human beings, and where the right to life of present and future generations takes precedence above any other. The difficulties of global consensus do not justify the local immobility. Within our time and vital space, we still have sufficient degrees of freedom to disable those "small" tragedies of our daily life. The path might be indicated by what is called Integral Development, our contribution from below to global thoughts and actions. [ABSTRACT FROM AUTHOR]

Copyright of Ciencia en su PC is the property of Instituto de Informacion Cientifica y Tecnologica and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Taking into consideration that tourism is the main source of income for Costa Rica, this paper underscores the importance of developing this sector in accordance to its ecological aspects. It shows a summary of the progress tourism has experienced in Costa Rica and its relation to the environment. It also provides an example of how to organize a community so that it can take advantage of its natural beauty and promote tourism in the region. Lastly, it shows recommendations to improve tourism in the country in harmony with nature. [ABSTRACT FROM AUTHOR]

The ignorance of the physical and ecological processes causes problems in the cities for many reasons, among others the lack of planning. When analyzing the urban evolution of Gran Mendoza, Argentina, we see that the answers generated in the urban space denote the lack of conscience and knowledge of the "site" and the climate that characterizes it. When taking these decisions about design a strong anthropic pressure is exerted on natural means, altering factors on urban scale that affect the building scale directly. The evaluation of the conditions of habitability of the urban public space is a contribution essential to obtaining improvements in the quality of life and the preservation of the environment. [ABSTRACT FROM AUTHOR]