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Tomlinson S, Lomolino MV, Anderson A, Austin JJ, Brown SC, Haythorne S, Perry GLW, Wilmshurst JM, Wood JR, Fordham DA. Reconstructing colonization dynamics to establish how human activities transformed island biodiversity. Sci Rep 2024; 14:5261. [PMID: 38438419 PMCID: PMC10912269 DOI: 10.1038/s41598-024-55180-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Accepted: 02/21/2024] [Indexed: 03/06/2024] Open
Abstract
Drivers and dynamics of initial human migrations across individual islands and archipelagos are poorly understood, hampering assessments of subsequent modification of island biodiversity. We developed and tested a new statistical-simulation approach for reconstructing the pattern and pace of human migration across islands at high spatiotemporal resolutions. Using Polynesian colonisation of New Zealand as an example, we show that process-explicit models, informed by archaeological records and spatiotemporal reconstructions of past climates and environments, can provide new and important insights into the patterns and mechanisms of arrival and establishment of people on islands. We find that colonisation of New Zealand required there to have been a single founding population of approximately 500 people, arriving between 1233 and 1257 AD, settling multiple areas, and expanding rapidly over both North and South Islands. These verified spatiotemporal reconstructions of colonisation dynamics provide new opportunities to explore more extensively the potential ecological impacts of human colonisation on New Zealand's native biota and ecosystems.
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Affiliation(s)
- Sean Tomlinson
- School of Biological Sciences, University of Adelaide, Adelaide, SA, 5005, Australia.
| | - Mark V Lomolino
- College of Environmental Science and Forestry, State University of New York, Syracuse, NY, 13210, USA
| | - Atholl Anderson
- School of Culture, History and Language, Australian National University, Canberra, ACT, 0200, Australia
- Ngai Tahu Research Centre, University of Canterbury, Christchurch, 8140, New Zealand
| | - Jeremy J Austin
- School of Biological Sciences, University of Adelaide, Adelaide, SA, 5005, Australia
| | - Stuart C Brown
- School of Biological Sciences, University of Adelaide, Adelaide, SA, 5005, Australia
- Globe Institute, University of Copenhagen, Copenhagen, 1353, Denmark
| | - Sean Haythorne
- School of Biological Sciences, University of Adelaide, Adelaide, SA, 5005, Australia
- Centre of Excellence for Biosecurity Risk Analysis, University of Melbourne, Parkville, VIC, 3010, Australia
| | - George L W Perry
- School of Environment, University of Auckland, Auckland, 1142, New Zealand
| | - Janet M Wilmshurst
- Ecosystems & Conservation, Manaaki Whenua Landcare Research, Lincoln, 7640, New Zealand
| | - Jamie R Wood
- The Environment Institute, University of Adelaide, Adelaide, SA, 5005, Australia
| | - Damien A Fordham
- The Environment Institute, University of Adelaide, Adelaide, SA, 5005, Australia.
- Center for Macroecology, Evolution and Climate, Globe Institute, University of Copenhagen, Copenhagen, 1353, Denmark.
- Center for Mountain Biodiversity, Globe Institute, University of Copenhagen, Copenhagen, 1353, Denmark.
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2
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Hagen EH, Blackwell AD, Lightner AD, Sullivan RJ. Homo medicus: The transition to meat eating increased pathogen pressure and the use of pharmacological plants in Homo. AMERICAN JOURNAL OF BIOLOGICAL ANTHROPOLOGY 2023; 180:589-617. [PMID: 36815505 DOI: 10.1002/ajpa.24718] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Revised: 01/31/2023] [Accepted: 02/08/2023] [Indexed: 02/24/2023]
Abstract
The human lineage transitioned to a more carnivorous niche 2.6 mya and evolved a large body size and slower life history, which likely increased zoonotic pathogen pressure. Evidence for this increase includes increased zoonotic infections in modern hunter-gatherers and bushmeat hunters, exceptionally low stomach pH compared to other primates, and divergence in immune-related genes. These all point to change, and probably intensification, in the infectious disease environment of Homo compared to earlier hominins and other apes. At the same time, the brain, an organ in which immune responses are constrained, began to triple in size. We propose that the combination of increased zoonotic pathogen pressure and the challenges of defending a large brain and body from pathogens in a long-lived mammal, selected for intensification of the plant-based self-medication strategies already in place in apes and other primates. In support, there is evidence of medicinal plant use by hominins in the middle Paleolithic, and all cultures today have sophisticated, plant-based medical systems, add spices to food, and regularly consume psychoactive plant substances that are harmful to helminths and other pathogens. We propose that the computational challenges of discovering effective plant-based treatments, the consequent ability to consume more energy-rich animal foods, and the reduced reliance on energetically-costly immune responses helped select for increased cognitive abilities and unique exchange relationships in Homo. In the story of human evolution, which has long emphasized hunting skills, medical skills had an equal role to play.
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Affiliation(s)
- Edward H Hagen
- Department of Anthropology, Washington State University, Pullman, Washington, USA
| | - Aaron D Blackwell
- Department of Anthropology, Washington State University, Pullman, Washington, USA
| | - Aaron D Lightner
- Department of Anthropology, Washington State University, Pullman, Washington, USA
- Department of the Study of Religion, Aarhus University, Aarhus, Denmark
| | - Roger J Sullivan
- Department of Anthropology, California State University, Sacramento, California, USA
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3
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Yaworsky PM, Hussain ST, Riede F. Climate-driven habitat shifts of high-ranked prey species structure Late Upper Paleolithic hunting. Sci Rep 2023; 13:4238. [PMID: 36918697 PMCID: PMC10015039 DOI: 10.1038/s41598-023-31085-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Accepted: 03/06/2023] [Indexed: 03/16/2023] Open
Abstract
Changing climates in the past affected both human and faunal population distributions, thereby structuring human diets, demography, and cultural evolution. Yet, separating the effects of climate-driven and human-induced changes in prey species abundances remains challenging, particularly during the Late Upper Paleolithic, a period marked by rapid climate change and marked ecosystem transformation. To disentangle the effects of climate and hunter-gatherer populations on animal prey species during the period, we synthesize disparate paleoclimate records, zooarchaeological data, and archaeological data using ecological methods and theory to test to what extent climate and anthropogenic impacts drove broad changes in human subsistence observed in the Late Upper Paleolithic zooarchaeological records. We find that the observed changes in faunal assemblages during the European Late Upper Paleolithic are consistent with climate-driven animal habitat shifts impacting the natural abundances of high-ranked prey species on the landscape rather than human-induced resource depression. The study has important implications for understanding how past climate change impacted and structured the diet and demography of human populations and can serve as a baseline for considerations of resilience and adaptation in the present.
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Affiliation(s)
- Peter M Yaworsky
- Department of Archeology and Heritage Studies, School of Culture and Society, Aarhus University, Moesgård Allé 20, Building 4216, 8270, Højbjerg, Denmark.
- Center for Biodiversity Dynamics in a Changing World, Department of Biology, Aarhus University, Ny Munkegade 114-116, 8000, Aarhus C, Denmark.
| | - Shumon T Hussain
- Department of Archeology and Heritage Studies, School of Culture and Society, Aarhus University, Moesgård Allé 20, Building 4216, 8270, Højbjerg, Denmark
- Center for Biodiversity Dynamics in a Changing World, Department of Biology, Aarhus University, Ny Munkegade 114-116, 8000, Aarhus C, Denmark
| | - Felix Riede
- Department of Archeology and Heritage Studies, School of Culture and Society, Aarhus University, Moesgård Allé 20, Building 4216, 8270, Højbjerg, Denmark
- Center for Biodiversity Dynamics in a Changing World, Department of Biology, Aarhus University, Ny Munkegade 114-116, 8000, Aarhus C, Denmark
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4
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Simulations of human migration into North America are more sensitive to demography than choice of palaeoclimate model. Ecol Modell 2022. [DOI: 10.1016/j.ecolmodel.2022.110115] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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5
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Vidal-Cordasco M, Ocio D, Hickler T, Marín-Arroyo AB. Ecosystem productivity affected the spatiotemporal disappearance of Neanderthals in Iberia. Nat Ecol Evol 2022; 6:1644-1657. [PMID: 36175541 DOI: 10.1038/s41559-022-01861-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Accepted: 07/28/2022] [Indexed: 11/09/2022]
Abstract
What role did fluctuations play in biomass availability for secondary consumers in the disappearance of Neanderthals and the survival of modern humans? To answer this, we quantify the effects of stadial and interstadial conditions on ecosystem productivity and human spatiotemporal distribution patterns during the Middle to Upper Palaeolithic transition (50,000-30,000 calibrated years before the present) in Iberia. First, we used summed probability distribution, optimal linear estimation and Bayesian age modelling to reconstruct an updated timescale for the transition. Next, we executed a generalized dynamic vegetation model to estimate the net primary productivity. Finally, we developed a macroecological model validated with present-day observations to calculate herbivore abundance. The results indicate that, in the Eurosiberian region, the disappearance of Neanderthal groups was contemporaneous with a significant decrease in the available biomass for secondary consumers, and the arrival of the first Homo sapiens populations coincided with an increase in herbivore carrying capacity. During stadials, the Mediterranean region had the most stable conditions and the highest biomass of medium and medium-large herbivores. These outcomes support an ecological cause for the hiatus between the Mousterian and Aurignacian technocomplexes in Northern Iberia and the longer persistence of Neanderthals in southern latitudes.
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Affiliation(s)
- M Vidal-Cordasco
- Grupo I+D+i EvoAdapta (Evolución Humana y Adaptaciones Económicas y Ecológicas durante la Prehistoria), Departamento Ciencias Históricas, Universidad de Cantabria, Santander, Spain.
| | - D Ocio
- Mott MacDonald, Cambridge, UK
| | - T Hickler
- Senckenberg Biodiversity and Climate Research Centre (SBiK-F), Frankfurt am Main, Germany.,Department of Physical Geography, Goethe University, Frankfurt, Germany
| | - A B Marín-Arroyo
- Grupo I+D+i EvoAdapta (Evolución Humana y Adaptaciones Económicas y Ecológicas durante la Prehistoria), Departamento Ciencias Históricas, Universidad de Cantabria, Santander, Spain.
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Harris NC, Murphy A, Green AR, Gámez S, Mwamidi DM, Nunez-Mir GC. Socio-ecological gap analysis to forecast species range contractions for conservation. Proc Natl Acad Sci U S A 2022; 120:e2201942119. [PMID: 36165442 PMCID: PMC9962987 DOI: 10.1073/pnas.2201942119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Accepted: 06/23/2022] [Indexed: 11/18/2022] Open
Abstract
Conservation requires both a needs assessment and prioritization scheme for planning and implementation. Range maps are critical for understanding and conserving biodiversity, but current range maps often omit content, negating important metrics of variation in populations and places. Here, we integrate a myriad of conditions that are spatially explicit across distributions of carnivores to identify gaps in capacity necessary for their conservation. Expanding on traditional gap analyses that focus almost exclusively on quantifying discordance in protected area coverage across a species' range, our work aggregates threat layers (e.g., drought, human pressures) with resources layers (e.g., protected areas, cultural diversity) to identify gaps in available conservation capacity (ACC) across ranges for 91 African carnivores. Our model indicated that all species have some portion of their range at risk of contraction, with an average of 15 percentage range loss. We found that the ACC differed based on body size and taxonomy. Results deviated from current perceptions of extinction risks for species with an International Union for Conservation of Nature (IUCN) threat status of Least Concern and yielded insights for species categorized as Data Deficient. Our socio-ecological gap analysis presents a geospatial approach to inform decision-making and resource allocation in conservation. Ultimately, our work advances forecasting dynamics of species' ranges that are increasingly vital in an era of great socio-ecological change to mitigate human-wildlife conflict and promote inclusive carnivore conservation across geographies.
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Affiliation(s)
- Nyeema C. Harris
- Applied Wildlife Ecology Lab, Yale School of the Environment, Yale University, New Haven, CT06511
| | - Asia Murphy
- Department of Environmental Studies, University of California, Santa Cruz, CA95064
| | - Aalayna R. Green
- Department of Natural Resources and the Environment, Cornell University, Ithaca, NY14853
| | - Siria Gámez
- Applied Wildlife Ecology Lab, Yale School of the Environment, Yale University, New Haven, CT06511
| | - Daniel M. Mwamidi
- Laboratory for Analysis of Socio-ecological Systems in a Global World, Institute of Environmental Science and Technology, Autonomous University of Barcelona, 08193 Barcelona, Spain
| | - Gabriela C. Nunez-Mir
- Department of Biological Sciences, University of Illinois at Chicago, Chicago, IL60607
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Ordonez A, Riede F. Changes in limiting factors for forager population dynamics in Europe across the last glacial-interglacial transition. Nat Commun 2022; 13:5140. [PMID: 36068206 PMCID: PMC9448755 DOI: 10.1038/s41467-022-32750-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Accepted: 08/16/2022] [Indexed: 11/09/2022] Open
Abstract
Population dynamics set the framework for human genetic and cultural evolution. For foragers, demographic and environmental changes correlate strongly, although the causal relations between different environmental variables and human responses through time and space likely varied. Building on the notion of limiting factors, namely that at any one time, the scarcest resource caps population size, we present a statistical approach to identify the dominant climatic constraints for hunter-gatherer population densities and then hindcast their changing dynamics in Europe for the period between 21,000 to 8000 years ago. Limiting factors shifted from temperature-related variables (effective temperature) during the Pleistocene to a regional mosaic of limiting factors in the Holocene dominated by temperature seasonality and annual precipitation. This spatiotemporal variation suggests that hunter-gatherers needed to overcome very different adaptive challenges in different parts of Europe and that these challenges varied over time. The signatures of these changing adaptations may be visible archaeologically. In addition, the spatial disaggregation of limiting factors from the Pleistocene to the Holocene coincided with and may partly explain the diversification of the cultural geography at this time.
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Affiliation(s)
- Alejandro Ordonez
- Center for Biodiversity Dynamics in a Changing World, Aarhus University, Aarhus, Denmark.
- Department of Biology, Aarhus University, Aarhus, Denmark.
- Center for Sustainable Landscapes under Global Change, Aarhus University, Aarhus, Denmark.
| | - Felix Riede
- Center for Biodiversity Dynamics in a Changing World, Aarhus University, Aarhus, Denmark
- Department of Archaeology and Heritage Studies, Aarhus University, Aarhus, Denmark
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8
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Lameira AR, Santamaría-Bonfil G, Galeone D, Gamba M, Hardus ME, Knott CD, Morrogh-Bernard H, Nowak MG, Campbell-Smith G, Wich SA. Sociality predicts orangutan vocal phenotype. Nat Ecol Evol 2022; 6:644-652. [PMID: 35314786 PMCID: PMC9085614 DOI: 10.1038/s41559-022-01689-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Accepted: 02/02/2022] [Indexed: 11/09/2022]
Abstract
In humans, individuals' social setting determines which and how language is acquired. Social seclusion experiments show that sociality also guides vocal development in songbirds and marmoset monkeys, but absence of similar great ape data has been interpreted as support to saltational notions for language origin, even if such laboratorial protocols are unethical with great apes. Here we characterize the repertoire entropy of orangutan individuals and show that in the wild, different degrees of sociality across populations are associated with different 'vocal personalities' in the form of distinct regimes of alarm call variants. In high-density populations, individuals are vocally more original and acoustically unpredictable but new call variants are short lived, whereas individuals in low-density populations are more conformative and acoustically consistent but also exhibit more complex call repertoires. Findings provide non-invasive evidence that sociality predicts vocal phenotype in a wild great ape. They prove false hypotheses that discredit great apes as having hardwired vocal development programmes and non-plastic vocal behaviour. Social settings mould vocal output in hominids besides humans.
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Affiliation(s)
- Adriano R Lameira
- Department of Psychology, University of Warwick, Coventry, UK.
- School of Psychology and Neuroscience, University of St Andrews, St Andrews, UK.
| | - Guillermo Santamaría-Bonfil
- Instituto Nacional de Electricidad y Energías Limpias, Gerencia de Tecnologías de la Información, Cuernavaca, México
| | - Deborah Galeone
- Department of Life Sciences and Systems Biology, University of Torino, Turin, Italy
| | - Marco Gamba
- Department of Life Sciences and Systems Biology, University of Torino, Turin, Italy
| | | | - Cheryl D Knott
- Department of Anthropology, Boston University, Boston, MA, USA
| | - Helen Morrogh-Bernard
- Borneo Nature Foundation, Palangka Raya, Indonesia
- College of Life and Environmental Sciences, University of Exeter, Penryn, UK
| | - Matthew G Nowak
- The PanEco Foundation-Sumatran Orangutan Conservation Programme, Berg am Irchel, Switzerland
- Department of Anthropology, Southern Illinois University, Carbondale, IL, USA
| | - Gail Campbell-Smith
- Yayasan Inisiasi Alam Rehabilitasi Indonesia, International Animal Rescue, Ketapang, Indonesia
| | - Serge A Wich
- School of Natural Sciences and Psychology, Liverpool John Moores University, Liverpool, UK
- Faculty of Science, University of Amsterdam, Amsterdam, Netherlands
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