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Articles by Isabel Rivera-Collazo
Detection of resonant knapped lithics using chirp sonar
Abstract Sub-bottom profiling (SBP) systems have been used to detect lithics on the seafloor, where their presence has been inferred from a convex pattern of reflections in the water-column portion of the profile, called haystacks. These signals have been attributed to the resonant properties of human-knapped lithics, but the physical mechanism responsible for their unexpected appearance has not been explained. We investigate the origin of these signals through controlled experiments and modeling.
Venice may be put on the endangered list, thanks to human-created climate change
A UNESCO report says that along with over-tourism and construction, climate change-induced sea level rise and extreme weather have put Venice's storied old buildings and landscapes at risk. In November 2019, floods endangered historical treasures and buildings. And earlier this year, the city suffered from an opposite problem when severe drought made it impossible for the gondolas to pass through some of the city's canals.
Resistance and Care in the Time of COVID‐19: Archaeology in 2020
ABSTRACT en The COVID-19 pandemic offered humanity a portal through which we could break with the past and imagine our world anew. This article reviews how over the course of 2020, a series of intersecting crises at the nexus of racism, settler colonialism, climate change, and sexual harassment have prompted acts of resistance and care in the field of archaeology.
Por el camino verde: Long-term tropical socioecosystem dynamics and the Anthropocene as seen from Puerto Rico
Islands are traditionally considered sensitive to environment and climate change. The Caribbean Islands are a biodiversity hotspot, where conservation efforts should be a priority. However, the archaeological record suggests that the biotic characteristics of the islands, even within nature or forests reserves, are strongly shaped by thousands of years of intense human activity.
Human adaptation strategies to abrupt climate change in Puerto Rico ca. 3.5 ka
The connection between climatic change and social response is complex because change articulates a number of inter-related factors. Human decisions are filtered by social buffers – including social memory, risk perception, and cultural priorities – and the rate and scale of climate change is usually much larger than the scale of human decision-making.
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