Juan Emilio Sala

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Verified

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• PhD in Biological Sciences
• Independent Researcher at Centro Nacional Patagonico

To create the science we need for the ocean we want in this United Nations Decade of Ocean Science for Sustainable Development and to support the Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services (IPBES) value assessment, we systematically reviewed literature from the past 20 years (N = 375) that used conceptualizatio...

La Iniciativa Pampa Azul (IPA) constituye un ambicioso programa interministerial, creado en 2014, en pos de instalar al Mar Argentino en el centro de la agenda de desarrollo del país. Se propone coordinar los importantes recursos científico-tecnológicos nacionales en aras de un desarrollo sostenible, soberano y seguro del mar. Se trata de una apues...

Natural systems in Argentina have gradually faded as a consequence of land use change, resulting in a diminished capacity to provide the ecosystem services (ES) essential for the well-being of the communities. The basin of the Chocancharava River fits within that context and is immersed in an urban-agricultural matrix that has produced major forest...

Natural systems in Argentina have gradually faded as a consequence of land use change, resulting in a diminished capacity to provide the ecosystem services (ES) essential for the well-being of the communities. The basin of the Chocancharava River fits within that context and is immersed in an urban-agricultural matrix that has produced major forest...

Strategies to address the current unsustainable trajectory of our planet require deep transformations. The leverage points perspective can support such efforts for transformative change by motivating more research combining empirical and theoretical frameworks to understand the dynamics of complex social–ecological systems. We argue that the levera...

Through the critical lenses of philosophy, history, and political ecology, I will go through the different approaches used, historically, by the conservation science to protect the Patagonian coastal environments, to end up proposing an integral and overcoming alternative: the social-ecological systems perspective (SES). In this chapter, I will go...

Despite an increasing understanding of the issue of marine pollution, humanity continues on a largely unsus-tainable trajectory. This study aimed to identify and classify the range of scientific studies and interventions to address coastal and marine pollution. We reviewed 2417 scientific papers published between 2000 and 2018, 741 of which we anal...

Introduction The complex links and feedbacks between ecosystems and people are now sharply in focus. Our growing understandings of the complex relations between ecosystems and people, the social and ecological drivers of changes in nature, and the different dimensions of a good quality of life, from local to global scales, have made these interdepe...

The social-ecological systems (SES) perspective stems from the need to rethink the ways humans relate to the environment, given the evidence that conventional conservation and management approaches are often ineffective in dealing with complex socio-environmental problems. The SES approach conceives non-scientific and scientific knowledge as equall...

Según un estudio prospectivo realizado entre 2013 y 2015 por el Ministerio de Ciencia, Tecnología e Innovación Productiva, el aporte actual del sector marítimo al Producto Bruto Interno (PBI) del país es de sólo 1,5% (concentrado en la actividad pesquera). Pero se estima que en 2035 podría alcanzar entre el 10 y el 15% del PBI si se realizara una m...

The development of multisensor animal‐attached tags, recording data at high frequencies, has enormous potential in allowing us to define animal behaviour. The high volumes of data, are pushing us towards machine‐learning as a powerful option for distilling out behaviours. However, with increasing parallel lines of data, systems become more likely t...

In recent decades, a disciplinary and sub disciplinary proliferation has been triggered both in the medical fields and science in general. This trend may be partially explained by two diachronic, dialectically interconnected facts: the deepening of the technical, social and international division of labor in the globalized capitalist world, and the...

Highly specialized diving birds display substantial dichotomy in neck length with, for example, cormorants and anhingas having extreme necks, while penguins and auks have minimized necks. We attached acceleration loggers to Imperial cormorants Phalacrocorax atriceps and Magellanic penguins Spheniscus magellanicus, both foraging in waters over the P...

Jellyfish and other pelagic gelatinous organisms (“gelata”) are increasingly perceived as an important component of marine food webs but remain poorly understood. Their importance as prey in the oceans is extremely difficult to quantify due in part to methodological challenges in verifying predation on gelatinous structures. Miniaturized animal-bor...

En las últimas décadas se ha desencadenado una verdadera proliferación disciplinar y subdisciplinar tanto en el ámbito médico como en la ciencia en general. Esta tendencia podría ser parcialmente explicada por dos hechos diacrónicos e interconectados dialécticamente: la profundización de la división técnica, social e internacional del trabajo del m...

Background We are increasingly using recording devices with multiple sensors operating at high frequencies to produce large volumes of data which are problematic to interpret. A particularly challenging example comes from studies on animals and humans where researchers use animal-attached accelerometers on moving subjects to attempt to quantify beh...

Between 2003 and 2012, 605 southern right whales (SRW; Eubalaena australis) were found dead along the shores of Península Valdés (PV), Argentina. These deaths included alarmingly high annual losses between 2007 and 2012, a peak number of deaths (116) in 2012, and a significant number of deaths across years in calves-of-the-year (544 of 605 [89.9%];...

Thermoregulation could represent a significant fraction of the total energy budget of endotherms under unfavourable environmental conditions. This cost affects several traits of the ecology of an organism such as its behaviour, distribution, or life history. Heat produced by muscle contraction during activity can be used to pay for heat loss or the...

The determination of activity-specific energy expenditure of wild animals is key in ecology and conservation sciences. Energy management is crucial for seabirds during the breeding season when they need to maintain a positive balance between energy intake and the metabolic costs for them and their young. We analysed information from accelerometers...

The Magellanic penguin Spheniscus magellanicus has recently colonized two new coastal sites (Islote Lobos and El Pedral), increasing the number of colonies in northern Patagonia, Argentina. Assuming foraging parameters during the breeding season to be valid short-term indicators of population health, we studied several foraging parameters of pengui...

The energetic costs of animal movement change with body condition, although the consequences of this for foraging efficiency are rarely considered. We deployed externally attached devices to Magellanic penguins (Spheniscus magellanicus), known to increase the costs of swimming via increased drag in a consistent manner, and noted, however, that fora...

Resumen Debido a limitaciones para abordar la complejidad de la relación sociedad-naturaleza, los esfuerzos para solucionar los proble-mas ambientales han sido en general infructuosos. Aquí propo-nemos que el enfoque holístico de " socio-ecosistema " por parte de la academia, podría contribuir a disminuir estas limitaciones desde la adopción de cua...

The determination of activity-specific energy expenditure of wild animals is key in ecology and conservation sciences. Energy management is crucial for seabirds during the breeding season when they need to maintain a positive balance between energy intake and the metabolic costs for them and their young. We analysed information from accelerometers...

Seabirds have to deal with environmental variability and are predicted to modulate foraging behaviour to maximize fitness, with particularly strong selection pressure for optimal behavior during chick provisioning when energy demands are high. We reported data from 42 breeding birds equipped during the early chick- rearing period with depth recorde...

Hundreds of southern right whale calves Eubalaena australis died on their calving ground at Península Valdés, Argentina from 2003 through 2011. During this period, the number of dead calves increased at a much greater rate than that of living calves over the preceding 32 yr, and with greater inter-annual variation. High mortality events occurred la...

Penguins are major consumers in the southern oceans although quantification of this has been problematic. One suggestion proposes the use of points of inflection in diving profiles ('wiggles') for this, a method that has been validated for the estimation of prey consumption by Magellanic penguins (Spheniscus magellanicus) by Simeone and Wilson (200...

In long-lived species such as seabirds, foraging success is considered to be related to breeding success, so quantification of foraging parameters during the breeding season should help understand population trends. Using GPS units, we studied the foraging effort of 55 breeding Magellanic penguins Spheniscus magellanicus from 5 colonies in coastal...

Elephant seals are one of the most proficient diving mammals in the world and are also one of the most studied. However, their long periods at sea and pelagic habits make research into their foraging ecology particularly challenging. Most current understanding comes from the use of time-depth recorders (TDRs). We used TDRs that additionally recorde...

Locomotion is one of the major energetic costs faced by animals and various strategies have evolved to reduce its cost. Birds use interspersed periods of flapping and gliding to reduce the mechanical requirements of level flight while undergoing cyclical changes in flight altitude, known as undulating flight. Here we equipped free-ranging marine ve...