Sean Hixon
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View article: Advancing transdisciplinary research on Madagascar's grassy biomes to support resilience in ecosystems and livelihoods
Advancing transdisciplinary research on Madagascar's grassy biomes to support resilience in ecosystems and livelihoods Open
Grassy biomes (savanna and grasslands) are globally extensive and host a unique biodiversity that is of central importance to human livelihoods. We focus here on the island of Madagascar—a microcosm of the global tropics, covered in 80% gr…
View article: Mid-Holocene aridity recorded in pygmy hippo and giant tortoise bone from southwest Madagascar
Mid-Holocene aridity recorded in pygmy hippo and giant tortoise bone from southwest Madagascar Open
Aridity can exacerbate threats to endemic biodiversity, and arid intervals during the last couple of millennia may have contributed to endemic large herbivore extinctions on Madagascar. However, regional palaeoclimate records spanning mult…
View article: The North American Repository for Archaeological Isotopes
The North American Repository for Archaeological Isotopes Open
Here, we present the North American Repository for Archaeological Isotopes (NARIA) , the largest open-access compilation of previously reported isotopic measurements (n = 28,374) from bioarchaeological samples in North America (i.e., Canad…
View article: Expedient Bayesian prediction of subfossil bone protein content using portable ATR-FTIR data
Expedient Bayesian prediction of subfossil bone protein content using portable ATR-FTIR data Open
Rapid and minimally destructive methods for estimating the endogenous organic content of subfossil bone save\ntime, lab consumables, and valuable ancient materials. Fourier transform infrared (FTIR) spectroscopy is an\nestablished method t…
View article: Social networks as risk-mitigation strategies in south-west Madagascar
Social networks as risk-mitigation strategies in south-west Madagascar Open
Palaeoenvironmental data indicate that the climate of south-western Madagascar has changed repeatedly over the past millennium. Combined with socio-political challenges such as warfare and slave raiding, communities continually had to miti…
View article: Assessing Pleistocene–Holocene climatic and environmental change in insular Near Oceania using stable isotope analysis of archaeological fauna
Assessing Pleistocene–Holocene climatic and environmental change in insular Near Oceania using stable isotope analysis of archaeological fauna Open
In comparison to temperate and arid regions, environmental responses to the Last Glacial Maximum and the Terminal Pleistocene and Holocene boundary remain poorly known for many parts of the tropics, making it challenging to unravel human–l…
View article: Late Pleistocene to late Holocene palaeoecology and human foraging at Kuumbi Cave, Zanzibar Island
Late Pleistocene to late Holocene palaeoecology and human foraging at Kuumbi Cave, Zanzibar Island Open
Background Climate change played a major role in shaping regional human-environment interactions in Africa during the late Pleistocene-Holocene, but this topic has not been exhaustively studied, particularly in eastern Africa. While there …
View article: Dogs occupying grassy habitat near protected areas in eastern Madagascar rely on foods from forests
Dogs occupying grassy habitat near protected areas in eastern Madagascar rely on foods from forests Open
Societal Impact Statement Identifying where introduced animals fit in a food web relative to each other and to endemic species is key for biodiversity conservation planning. Using a multiproxy study of dog feces from eastern Madagascar, we…
View article: Presenting the AfriArch Isotopic Database
Presenting the AfriArch Isotopic Database Open
AfriArch is an archaeological and paleoenvironmental data community designed to integrate datasets related to human-environmental interactions in Holocene Africa. Here we present a dataset of bioarchaeological stable isotope (C/N/O) and ra…
View article: Influence of Late Holocene Climate Change and Human Land Use on Terrestrial and Aquatic Ecosystems in Southwest Madagascar
Influence of Late Holocene Climate Change and Human Land Use on Terrestrial and Aquatic Ecosystems in Southwest Madagascar Open
Madagascar’s biota underwent substantial change following human colonization of the island in the Late Holocene. The timing of human arrival and its role in the extinction of megafauna have received considerable attention. However, the imp…
View article: Drought Coincided with, but Does Not Explain, Late Holocene Megafauna Extinctions in SW Madagascar
Drought Coincided with, but Does Not Explain, Late Holocene Megafauna Extinctions in SW Madagascar Open
Climate drying could have transformed ecosystems in southern Madagascar during recent millennia by contributing to the extinction of endemic megafauna. However, the extent of regional aridification during the past 2000 years is poorly know…
View article: Late Holocene spread of pastoralism coincides with endemic megafaunal extinction on Madagascar
Late Holocene spread of pastoralism coincides with endemic megafaunal extinction on Madagascar Open
Recently expanded estimates for when humans arrived on Madagascar (up to approximately 10 000 years ago) highlight questions about the causes of the island's relatively late megafaunal extinctions (approximately 2000–500 years ago). Introd…
View article: Ecological Consequences of a Millennium of Introduced Dogs on Madagascar
Ecological Consequences of a Millennium of Introduced Dogs on Madagascar Open
Introduced predators currently threaten endemic animals on Madagascar through predation, facilitation of human-led hunts, competition, and disease transmission, but the antiquity and past consequences of these introductions are poorly know…
View article: Ecological Consequences of a Millennium of Introduced Dogs on Madagascar
Ecological Consequences of a Millennium of Introduced Dogs on Madagascar Open
<p>Introduced predators currently threaten endemic animals on Madagascar through predation, facilitation of human-led hunts, competition, and disease transmission, but the antiquity and past consequences of these introductions are po…
View article: Datasets from Late holocene spread of pastoralism coincides with endemic megafaunal extinction on Madagascar
Datasets from Late holocene spread of pastoralism coincides with endemic megafaunal extinction on Madagascar Open
include all new and reviewed data
View article: Rapa Nui (Easter Island) monument (ahu) locations explained by freshwater sources
Rapa Nui (Easter Island) monument (ahu) locations explained by freshwater sources Open
Explaining the processes underlying the emergence of monument construction is a major theme in contemporary anthropological archaeology, and recent studies have employed spatially-explicit modeling to explain these patterns. Rapa Nui (East…