21 research outputs found
Species interactions and climate change: How the disruption of species co-occurrence will impact on an avian forest guild
The role of motorized transport and mobile phones in the diffusion of agricultural information in Tanggamus Regency, Indonesia
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Made for Maids;Female Domestic Workers and the Use of Mobile Phones in the Slums of Urban Morocco
In this article, I am concerned with how female domestic workers use the mobile phone to expand employment opportunities in the shantytowns of urban Morocco. I examine how mobile telephony is a resource for human agency and action, not just a force for culture change. Second, I describe how mobile phone use has resulted in higher revenues by enlarging the circle of economic activity and by enabling supplementary informal income-generating possibilities. Third, I explore how the mobile phone has allowed them not only to generate more revenue but also to escape the stifling conditions of their workplace and renegotiate the gender politics of private-domestic space. © The Author(s)Open access journalThis item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at [email protected]
The long-term development impacts of international migration remittances for sending households: evidence from Morocco
Species interactions and climate change: How the disruption of species co-occurrence will impact on an avian forest guild
Interspecific interactions are crucial in determining species occurrence and community assembly. Understanding these interactions is thus essential for correctly predicting species' responses to climate change. We focussed on an avian forest guild of four hole-nesting species with differing sensitivities to climate that show a range of well-understood reciprocal interactions, including facilitation, competition and predation. We modelled the potential distributions of black woodpecker and boreal, tawny and Ural owl, and tested whether the spatial patterns of the more widespread species (excluding Ural owl) were shaped by interspecific interactions. We then modelled the potential future distributions of all four species, evaluating how the predicted changes will alter the overlap between the species' ranges, and hence the spatial outcomes of interactions. Forest cover/type and climate were important determinants of habitat suitability for all species. Field data analysed with N-mixture models revealed effects of interspecific interactions on current species abundance, especially in boreal owl (positive effects of black woodpecker, negative effects of tawny owl). Climate change will impact the assemblage both at species and guild levels, as the potential area of range overlap, relevant for species interactions, will change in both proportion and extent in the future. Boreal owl, the most climate-sensitive species in the guild, will retreat, and the range overlap with its main predator, tawny owl, will increase in the remaining suitable area: climate change will thus impact on boreal owl both directly and indirectly. Climate change will cause the geographical alteration or disruption of species interaction networks, with different consequences for the species belonging to the guild and a likely spatial increase of competition and/or intraguild predation. Our work shows significant interactions and important potential changes in the overlap of areas suitable for the interacting species, which reinforce the importance of including relevant biotic interactions in predictive climate change models for increasing forecast accuracy