Aportación a la flora pirenaica

54 páginas.- Actas del Quinto Congreso Internacional de Estudios Pirenaicos : Jaca-Pamplona, 1966, T. II: Sección 2: Climatología, edafología, botánica y zoología .Peer reviewe

Strengthening the global system of protected areas post-2020: A perspective from the IUCN World Commission on Protected Areas

Protected areas are the cornerstones of biodiversity conservation and have never been more relevant than at the present time when the world is facing both a biodiversity and a climate change crisis. The International Union for Conservation of Nature (IUCN) World Commission on Protected Areas (WCPA) has been helping to set global standards and best practice guidelines in protected area planning and management for 60 years. Following this guidance, many countries have made significant progress toward their Aichi Target 11 commitments under the Convention on Biological Diversity (CBD). The global community will be coming together at the 15th Conference of the Parties of the CBD to set new biodiversity conservation targets for the next decade, as milestones to 2050 and a vision of “a world living in harmony with nature.” This paper lays out the WCPA perspective on priorities for supporting effective protected and conserved areas for the post-2020 era

Submesoscale hotspots of productivity and respiration : insights from high-resolution oxygen and fluorescence sections

Author Posting. © The Author(s), 2017. This is the author's version of the work. It is posted here under a nonexclusive, irrevocable, paid-up, worldwide license granted to WHOI. It is made available for personal use, not for redistribution. The definitive version was published in Deep Sea Research Part I: Oceanographic Research Papers 130 (2017): 1-11, doi:10.1016/j.dsr.2017.10.005.Modeling studies have shown that mesoscale and submesoscale processes can stimulate phytoplankton productivity and export production. Here, we present observations from an undulating, towed Video Plankton Recorder (VPR-II) in the tropical Atlantic. The VPR-II collected profiles of oxygen, fluorescence, temperature and salinity in the upper 140 m of the water column at a spatial resolution of 1 m in the vertical and <2 km in the horizontal. The data reveal remarkable "hotspots", i.e. locations 5 to 10 km wide which have elevated fluorescence and decreased oxygen, both of which are likely the result of intense submesoscale upwelling. Based on estimates of source water, estimated from identical temperature and salinity surfaces, hotspots are more often areas of net respiration than areas of net production — although the inferred changes in oxygen are subject to uncertainty in the determination of the source of the upwelled waters since the true source water may not have been sampled. We discuss the spatial distribution of these hotspots and present a conceptual model outlining their possible generation and decline. Simultaneous measurements of O2/Ar in the mixed layer from a shipboard mass spectrometer provide estimates of rates of surface net community production. We find that the subsurface biological hotspots are often expressed as an increase in mixed layer rates of net community production. Overall, the large number of these hotspots support the growing evidence that submesoscale processes are important drivers in upper ocean biological production.Funding for this work came from the National Science Foundation (R.H.R.S. and D.J.M) (OCE-0925284, OCE-1048897, and OCE- 1029676) and the National Aeronautics and Space Administration (D.J.M.) (NNX08AL71G and NNX13AE47G)

Decolonising the Humanities: Reimagining Black Intellectual Life and Personhood in Southern African Contexts

This review article explores possibilities for transdisciplinary entanglements between the disciplines of critical psychology and literary criticism through a reading of the volume, ʻFoundational African Writers’, edited by Bhekizizwe Peterson, Khwezi Mkhize and Makhosazana Xaba. In this article, ‘Foundational African Writers’ is approached as a distillation of Peterson’s investment in excavating the world-making activities, writing lives and activities of ordinary people as a central dimension of the project to decolonise the Humanities. As this edited volume attests, Peterson’s creative and critical oeuvre continues to provoke thinking about the ways in which the reading of the African literary archive can assist in the wider project of decolonising and re-imagining intellectual and creative history in the Global South while also providing opportunities for new modes of thinking about personhood and psychic life in contexts of precarity, intergenerational trauma and economic exclusion

Postcolonial violence: narrating South Africa, May 2008

The violent attacks on immigrants in May and June 2008 laid bare some of the contradictions of the South African postcolony. Focusing on the vigorous public debate which arose in the aftermath of violence, this essay explores a moment of interpretive crisis in which the privileged stories of the nation were unexpectedly unravelled. From there, it moves to a discussion of the political investments at stake in the government’s choice of the ‘crime story’ as dominant interpretive scheme, giving particular emphasis to what this revealed about national myth-making, the production of consensus and modalities of power in the postcolonial state

Protected areas: providing natural solutions to 21st century challenges

Protected areas remain a cornerstone of global conservation efforts. The double impacts of climate change and biodiversity loss are major threats to achieving the Millennium Development Goals, especially those relating to environmental sustainability, poverty alleviation and food and water security. The growing awareness of the planet’s vulnerability to human driven changes also provides an opportunity to re-emphasize the multiple values of natural ecosystems and the services that they provide. Protected areas, when integrated into landuse plans as part of larger and connected conservation networks, offer practical, tangible solutions to the problems of both species loss and adaptation to climate change. Natural habitats make a significant contribution to mitigation by storing and sequestering carbon in vegetation and soils, and to adaptation by maintaining essential ecosystem services which help societies to respond to, and cope with climate change and other environmental challenges. Many protected areas could be justified on socioeconomic grounds alone yet their multiple goods and services are largely unrecognized in national accounting. This paper argues that there is a convincing case for greater investment in expanded and better-connected protected area systems, under a range of governance and management regimes that are specifically designed to counter the threats of climate change, increased demand and altered patterns of resource use. The new agenda for protected areas requires greater inclusivity of a broader spectrum of actors and rights holders, with growing attention to landscapes and seascapes protected by indigenous peoples, local communities, private owners and other actors which complement conservation areas managed by state agencies. Greater attention also needs to be focused on ways to integrate and mainstream protected areas into sustainable development, including promotion of “green” infrastructure as a strategic part of responses to climate change

Postcolonial violence: narrating South Africa, May 2008

The violent attacks on immigrants in May and June 2008 laid bare some of the contradictions of the South African postcolony. Focusing on the vigorous public debate which arose in the aftermath of violence, this essay explores a moment of interpretive crisis in which the privileged stories of the nation were unexpectedly unravelled. From there, it moves to a discussion of the political investments at stake in the government’s choice of the ‘crime story’ as dominant interpretive scheme, giving particular emphasis to what this revealed about national myth-making, the production of consensus and modalities of power in the postcolonial state

Pupil initiatives in urban nature trail development: PMB MOSS and the Foxhill Spruit

A brief background to Greenbelt and urban nature trail development in Pietermaritzburg is provided. Negotiations and procedures initiated by standard 9 pupils in stimulating authorities and the public to recognise the need for urban trail development and metropolitan open space (MOSS) are outlined. long-term considerations and general recommendations, based on the development of a model trail along the Foxhill Spruit, are presented