The need for river management and stream restoration practices to integrate hydrogeomorphology

There is growing support amongst scientists worldwide about the need for a shift in river management approaches to include hydrogeomorphic processes. However, the degree to which these concepts are transferred to governmental agencies and practitioners varies widely. In Quebec, for example, many stream restoration projects are based on the (incorrect) assumption that river mobility and its inevitable consequences (bank erosion of meanders, presence of woody debris in the channel) are problematic for salmonids. This paper presents examples drawn from current guidelines on stream restoration for fish habitat in Quebec to demonstrate the need to improve the knowledge exchange among scientists and decision makers about the positive impact of river mobility and large wood dynamics on biodiversity. Our observations reveal that existing guidelines for stream restoration in Quebec need to be revised to better integrate hydrogeomorphic concepts and to no longer assume that maintaining rivers in a static state is beneficial for fish. Adopting the “freedom space for rivers” approach would likely result in improved habitat as it combines natural processes related to mobility, flooding, and riparian wetland connectivity to determine the minimal space around rivers where development should not be allowed, thus allowing river processes to be restored.     

Réflexions Sur L’écriture Comme Lieu de Savoir Dans les Livres de Philosophie en France Au XVIIe Siècle

This article proposes a discussion on the sources of a history of knowledge by researching institutions, communities and the broader locations where this knowledge has developed. It shows that the textual nature of the sources of a possible knowledge of these places of learning of the past must be one of the objects of the analysis, with the risk of reproducing social fictions created in their own time to serve diverse political agendas. The case studied proposes an analysis of some of the focal points of the intellectual history of the XVII^th century (academies, salons, schools), and thus permits us to question the unequal social structure of these establishments, by reinserting the activity of writing and publication of a philosophical author into the canon of the numerous discourses on philosophy and those places which, during the era under consideration, turned it into something other than a discipline.     

Diffusion et Réception de la Dynamique La Correspondance Entre Leibniz et Wolff

By analysing the correspondence between Leibniz and Wolff, this article aims to present the expository modalities used by Leibniz to transmit his dynamics and the metaphysical system underpinning it. The point is here to study the ambivalence of the vocabulary of action, both as object of the conservation principle and as the essence of substance. By examining the way Wolff receives the dynamics of action, it is possible to highlight, as early as 1705, the uniqueness of his metaphysical framework. While publicizing the dynamics, he propounds a meaning of substance that is unequivocally different.     

Correspondencia privada e historia pública: las relaciones intelectuales de Pedro de Castro,Antonio de Herrera y el Inca Garcilaso

Este artículo analiza la correspondencia de Pedro de Castro y Quiñones con Francisco de Castro y Antonio de Herrera sobre las versiones históricas referentes a los hechos de su padre Cristóbal Vaca de Castro frente al gobierno del Perú. Demuestra que, con el propósito de modificar los términos de la crónica de Agustín de Zárate, Pedro de Castro supervisó directamente el texto de las Décadas de Herrera y, a través del jesuita Francisco de Castro, la versión sobre Vaca de Castro que aparece en la segunda parte de los Comentarios reales. La diferente relación del arzobispo con Herrera y Garcilaso —directa en el primer caso y mediata en el segundo— refleja la dispar autoridad de estos dos historiadores. A pesar de que esta intervención de Pedro de Castro se esconde a los ojos del lector, deja una huella tangible en la coincidencia de Herrera y Garcilaso en la escritura de la biografía del gobernador Vaca de Castro frente a la discrepancia de estos mismos cronistas en otros asuntos indianos. El estudio concluye mostrando la articulación que las historias de las Indias tenían en relación con numerosos problemas históricos, teológicos y políticos que se ventilaban entonces.     

Favelas and the divided city: mapping silences and calculations in Rio de Janeiro's journalistic cartography

This article aims to challenge the widespread consensus that Rio de Janeiro is a divided city by deploying two concepts in critical cartography: cartographic silences and cartographic calculations. As a kind of unconquered territory, a terrae incognitae, favelas were silenced on many of Rio de Janerio's maps over the last century. When these places began to be mapped, and converted to terrae cognitae, power relations often become even more apparent because of the intention to make it legible for purposes of intervention. By analyzing maps published in the mainstream Brazilian press throughout the last century, this article explores how national press often portrays Rio de Janeiro as a city divided between formal neighborhoods, where the state apparatus can ensure the rule of law, and favelas, where parallel politics enforce local forms of governance. In order to disseminate this image of the city, maps can play an important role, locating different urban zones and reinforcing old stereotypes. Despite many studies that focused on both material and embodied forms of state presence within favelas, maps can be an important source of information to understand persistant representations of favelas as excluded and divided places.     

Estimating the Number of Combatants during the Mixtón War in the Peñol de Nochistlán

Abstract

The objective of this article is to determine the number of combatants in the Mixtón War (1541–42), one of the most important military confrontations of the early years of the vice-royalty in Western Mexico, by analysing the Peñol de Nochistlán. To this end, information provided by historians has been compared with the population estimates established from the density of settlements known from archaeological evidence in order to define the area occupied by the armies involved in the conflict. This exercise resulted in a shifting array of spaces that could have been used by the combatants during confrontations. However, it will enable more intense archaeological prospecting in the area around the site of El Tuiche — the place identified as the Peñol of Nochistlán — revealing new evidence of the events that occurred on this battlefield.