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Problems and issues in the application of intrasite quantitative and spatial approaches to a historical context: a preliminary study on faunal remains at Igiliz (Morocco, 11th - 13th c.).
Intrasite spatial studies of artifact distribution are not new. In fact, within the geographical scope of this paper (Portugal, Spain, and Morocco), they have been widely applied on prehistoric and protohistoric contexts. However, the scarcity of their use on other chrono-cultural contexts, such as Islamic ones, is evident. One of the reasons for this gap seems to be related to the archaeological context of historical sites and the way of approaching it, that shapes research questions, excavation strategies and recording techniques, subsequently defining the format of our data. As part of a PhD thesis conducted on the Igiliz archaeological site (Morocco, 11th-13th c.), a quantitative and spatial study is developed on faunal remains with the aim of tailoring a method to the archaeological context, data format and material proxy under study. The approach is based on an exploratory trial and error process of finding suitable methods for the treatment, analysis and visualization of this material. In the present paper, a brief literature review explores the reasons for the gap in the application of intrasite approaches to the chrono-cultural area under study. As the application focuses on faunal remains, the paper then provides a brief overview of the methodology as tailored to this material. Finally, the aim is to emphasize the biases, problems and issues encountered in applying such approach at Igiliz, by discussing failed attempts in treatment and visualization methods and the solutions encountered for our context. The attempts show that commonly used processing methods such as heatmaps by Kernel Density Estimation (KDE), are unfit for our data and context. A visualization at the scale of the units or rooms using an adapted symbology is preferred. Meanwhile, analyzing and identifying trends within the distribution of faunal remains can only be reached by using multivariate statistics, such as Correspondence Analysis and Hierarchical Cluster Analysis, the subsequent spatialization of clusters contributing to the understanding of differences and similarities between the assemblages of spaces, units and rooms at the scale of the site. Both solutions proposed present understandable and exploitable results, showing similar trends within the distribution of the two main taxa at the site (Caprinae and Bos taurus). Although the results are preliminary at this stage of the study, they respond to the challenges presented and demonstrate the possibility of applying intrasite quantitative and spatial approaches on a historical context and their potentiality for analyzing functional and social aspects at Igiliz.