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Bush MB, Rozas-Davila A, Raczka M, Nascimento M, Valencia B, Sales RK, McMichael CNH, Gosling WD. A palaeoecological perspective on the transformation of the tropical Andes by early human activity. Philos Trans R Soc Lond B Biol Sci 2022; 377:20200497. [PMID: 35249394 PMCID: PMC8899620 DOI: 10.1098/rstb.2020.0497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Palaeoecological records suggest that humans have been in the Andes since at least 14 000 years ago. Early human impacts on Andean ecosystems included an increase in fire activity and the extinction of the Pleistocene megafauna. These changes in Andean ecosystems coincided with rapid climate change as species were migrating upslope in response to deglacial warming. Microrefugia probably played a vital role in the speed and genetic composition of that migration. The period from ca 14 500 to 12 500 years ago was when novel combinations of plant species appeared to form no-analogue assemblages in the Andes. By 12 000 years ago most areas in what are today the Andean grasslands were being burned and modified by human activity. As the vegetation of these highland settings has been modified by human activity for the entirety of the Holocene, they should be regarded as long-term manufactutred landscapes. The sharp tree lines separating Andean forests from grasslands that we see today were probably also created by repeated burning and owe their position more to human-induced fire than climatic constraints. In areas that were readly penetrated by humans on the forested slopes of the Andes, substantial modification and settlement had occurred by the mid-Holocene. In hard-to-reach areas, however, the amount of human modification may always have been minimal, and these slopes can be considered as being close to natural in their vegetation. This article is part of the theme issue 'Tropical forests in the deep human past'.
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Affiliation(s)
- M B Bush
- Institute for Global Ecology, Florida Institute of Technology, Melbourne, FL 32901, USA
| | - A Rozas-Davila
- Institute for Global Ecology, Florida Institute of Technology, Melbourne, FL 32901, USA
| | - M Raczka
- Department of Geography and Environmental Science, University of Reading, Whiteknights, Reading, Berkshire RG6 6AH, UK
| | - M Nascimento
- Department of Ecosystem and Landscape Dynamics, Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, 904 Science Park, 1098 XH, Amsterdam, Netherlands
| | - B Valencia
- Facultad de Ciencias de la Tierra y Agua, Ciencias de la Tierra y Clima, Universidad Regional Amazónica Ikiam, Tena, Ecuador
| | - R K Sales
- Institute for Global Ecology, Florida Institute of Technology, Melbourne, FL 32901, USA
| | - C N H McMichael
- Department of Ecosystem and Landscape Dynamics, Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, 904 Science Park, 1098 XH, Amsterdam, Netherlands
| | - W D Gosling
- Department of Ecosystem and Landscape Dynamics, Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, 904 Science Park, 1098 XH, Amsterdam, Netherlands
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Challa P, Kariyawasam R, Lau R, Valencia B, Llanos-Cuentas A, Boggild A. Interrogating the spectrum of bacterial pathogens in ulcers of cutaneous leishmaniasis. Int J Infect Dis 2019. [DOI: 10.1016/j.ijid.2018.11.334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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Mukkala A, Kariyawasam R, Lau R, Valencia B, Llanos-Cuentas A, Boggild A. Virulence Factor RNA Transcript Expression in Cultured Clinical Isolates of Leishmania Does Not Vary by Host Age. Int J Infect Dis 2018. [DOI: 10.1016/j.ijid.2018.04.3639] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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Kariyawasam R, Gascon B, Mah J, Lau R, Valencia B, Llanos-Cuentas A, Boggild A. Spectrum of Bacterial Pathogens in Inflammatory and Non-Inflammatory Ulcers of American Cutaneous Leishmaniasis. Int J Infect Dis 2018. [DOI: 10.1016/j.ijid.2018.04.4111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
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Kariyawasam R, Lau R, Valencia B, Llanos-Cuentas A, Boggild A. Prevalence and Association of Leishmania RNA Virus-1 (LRV-1) in Severe and Non-Severe Phenotypes of American Tegumentary Leishmaniasis from Peru. Int J Infect Dis 2018. [DOI: 10.1016/j.ijid.2018.04.4143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Kariyawasam R, Mukkala A, Lau R, Valencia B, Llanos-Cuentas A, Boggild A. Influence of Leishmania RNA Virus-1 (LRV-1) on Virulence Factor RNA Transcript Expression of Leishmania Viannia spp. Int J Infect Dis 2018. [DOI: 10.1016/j.ijid.2018.04.4145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
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Valencia B, Jara M, Adaui V, Chantry M, Alba M, Ramos A, Arevalo J, Llanos-Cuentas A, Boggild A. Controversial role of leishmania RNA virus as a determinant of pathogenicity in human leishmaniasis. Int J Infect Dis 2014. [DOI: 10.1016/j.ijid.2014.03.767] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Lau R, Valencia B, Ralevski F, Llanos-Cuentas A, Boggild A. Validation of a molecular diagnostic algorithm for leishmania detection in a non-endemic setting. Int J Infect Dis 2014. [DOI: 10.1016/j.ijid.2014.03.761] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Lau R, Valencia B, Ralevski F, Llanos-Cuentas A, Boggild A. Validation of a leishmania RNA virus-1 detection assay in a non-endemic setting. Int J Infect Dis 2014. [DOI: 10.1016/j.ijid.2014.03.760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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Corbett BA, Qualls LR, Valencia B, Fecteau SM, Swain DM. Peer-mediated theatrical engagement for improving reciprocal social interaction in autism spectrum disorder. Front Pediatr 2014; 2:110. [PMID: 25346926 PMCID: PMC4193263 DOI: 10.3389/fped.2014.00110] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/13/2014] [Accepted: 09/24/2014] [Indexed: 11/13/2022] Open
Abstract
The hallmark characteristic of autism spectrum disorder (ASD) is poor reciprocal social communication. Interventions designed to improve this core deficit are critically needed. Social skills interventions such as direct training, peer mediation, and video modeling have contributed to improvements in various social skills in children with ASD. This paper reviews existing social competence interventions available for children with ASD while highlighting hypothesized critical components for advancing, maintaining, and generalizing skills, which include (1) peer mediation, (2) active learning, and (3) implementation in supportive, natural contexts. As a framework for these approaches, this conceptual paper describes SENSE Theatre, a novel intervention that combines trained peers that facilitate the performance-based theatrical treatment delivered in a supportive, community-based environment. A review of previous research shows early feasibility, setting the stage for more rigorous studies to aid in developing a standardized intervention package.
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Affiliation(s)
- Blythe A Corbett
- Department of Psychiatry, Vanderbilt University , Nashville, TN , USA ; Vanderbilt Kennedy Center , Nashville, TN , USA
| | - Lydia R Qualls
- Department of Psychiatry, Vanderbilt University , Nashville, TN , USA ; Vanderbilt Kennedy Center , Nashville, TN , USA
| | | | - Stéphanie-M Fecteau
- Department of Psychiatry, Vanderbilt University , Nashville, TN , USA ; Vanderbilt Kennedy Center , Nashville, TN , USA
| | - Deanna M Swain
- Virginia Polytechnic Institute and State University , Blacksburg, VA , USA
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Valencia B, Veland N, Arevalo J, Llanos-Cuentas A, Dujardin JC. Molecular diagnosis of American tegumentary leishmaniasis with minimally invasive samples. Int J Infect Dis 2010. [DOI: 10.1016/j.ijid.2010.02.443] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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Valencia B, Diaz P, Ponce O, Ramos A, Llanos-Cuentas A. Usefulness of Montenegro skin test for the diagnosis of Mucosal Leishmaniasis. Int J Infect Dis 2010. [DOI: 10.1016/j.ijid.2010.02.425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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