1,445 research outputs found

    Black Thought in European History

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    Competition between honey bees (Apis mellifera) and native bees: an investigation in urban community gardens in St. Louis, Missouri

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    The European honey bee (Apis mellifera), is considered one of the worlds more important pollinator species and is often the focal species for bee conservation. However, lesser known native bees are equally, if not more valuable for pollination services. Native bees are better pollinators for native crop plants, but often must compete with honeybees for floral resources. There has been an increase in support for including honeybee hives in private and public spaces, but recent studies suggest that interactions between resident native bees and introduced honeybees can have long lasting and detrimental effects on population persistence. These interactions have been well documented in natural landscapes, but competition between bee species in the context of urban agriculture remains unknown. Therefore the goal of this study was to document interactions between native bees and honeybees in urban community gardens to elucidate differences in the number of competitive interactions and the competitive behaviors used by bees in urban regions. To accomplish this, we filmed flowers in three community gardens in Saint Louis, MO, one of which has four managed honey bee colonies and two that do not. We quantified known competitive behaviors for bees including chasing, dive bombing, pollen robbing and attacks. We found significant differences in both the frequency and type of competitive interactions between bee species and across surveyed community gardens. This information is vital for understanding the effects of introduced honeybee colonies in local landscapes, particularly in urban regions with already high selection pressures

    Black Africans’ Freedom Litigation Suits to Define Just War and Just Slavery in the Early Spanish Empire

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    This article explores how some enslaved black Africans litigated for their freedom in Spanish royal courts in the sixteenth century on the basis that – as Christians – they had been unjustly enslaved in Africa. With a focus on the port cities of Seville and Cartagena, I explore how freedom litigation suits illuminate how individuals from starkly different social worlds and intellectual milieus – who inhabited the same urban sites – affected and shaped one another’s intellectual landscapes. I trace how enslaved Africans’ epistemologies of just slavery shaped broader discourses on the just enslavement of Africans in the Spanish empire

    Verbal Acts and Spontaneous Declarations

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    Avertissement & Présentation de l'Égypte au présent

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    International audienceThe "people's revolution" in Egypt - Thawrat al-Sha'b - erupted Jan. 25, 2011 while our editor was laying out this work. The inventory of the Egyptian society that this book is offering therefore is published timely when Egypt lives a turning point in its history. Many connoisseurs of this country envisioned that large movements of political and social challenges can happen and lead to profound changes, however, no one would venture to forecast the timing, modalities and scope. Number of chapters in this book shed light on socio-economic and political issues that became intolerable in the eyes of many Egyptians, and shed light also on various social groups that became leading forces of this movement. This Egypte au présent (Egypt of today) gives a "full-size" image of the multiplicity and extent of the problems, that will have to face as challenges, the democratic system which, hopefully, will be the outcome of the process.La " révolution du peuple " en Egypte - thawrat al-cha'b - a éclaté le 25 janvier 2011 alors que cet ouvrage en était à l'étape de sa mise en page chez notre éditeur. L'inventaire qu'il propose de la société égyptienne paraît donc opportunément au moment où celle-ci vit un tournant de son histoire. Beaucoup de connaisseurs de ce pays envisageaient que d'importants mouvements de contestations politique et sociale puissent advenir et aboutir à de profonds changements ; nul ne se serait cependant aventuré à en prévoir les échéances, les modalités et la portée. Nombre de chapitres de cet ouvrage jettent un éclairage sur des situations socio-économiques et politiques devenues insupportables aux yeux de très nombreux Égyptiens et sur divers groupes sociaux devenus les forces porteuses de ce mouvement. Cette Egypte au présent donne une image "grandeur nature" de la multiplicité et de l'étendue des problèmes qu'aura à affronter, comme autant de défis, le régime démocratique qui, espérons-le, constituera l'aboutissement du processus en cours
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