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Abstract
Tropical forests are known for their high diversity. Yet, forest patches do occur in the tropics where a single tree species is dominant. Such “monodominant” forests are known from all of the main tropical regions. For Amazonia, we sampled the occurrence of monodominance in a massive, basin-wide database of forest-inventory plots from the Amazon Tree Diversity Network (ATDN). Utilizing a simple defining metric of at least half of the trees ≥ 10 cm diameter belonging to one species, we found only a few occurrences of monodominance in Amazonia, and the phenomenon was not significantly linked to previously hypothesized life history traits such wood density, seed mass, ectomycorrhizal associations, or Rhizobium nodulation. In our analysis, coppicing (the formation of sprouts at the base of the tree or on roots) was the only trait significantly linked to monodominance. While at specific locales coppicing or ectomycorrhizal associations may confer a considerable advantage to a tree species and lead to its monodominance, very few species have these traits. Mining of the ATDN dataset suggests that monodominance is quite rare in Amazonia, and may be linked primarily to edaphic factors.
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1 Biodiversity Dynamics, Naturalis Biodiversity Center, Leiden, RA, The Netherlands; Systems Ecology, Free University, Amsterdam, HV, The Netherlands
2 Department of Biological Sciences, Humboldt State University, Arcata, CA, USA
3 Biodiversity Dynamics, Naturalis Biodiversity Center, Leiden, RA, The Netherlands
4 Programa de Pós-Graduação em Ecologia e Conservação, Universidade do Estado de Mato Grosso, Nova Xavantina, MT, Brazil
5 Department of Ecological Modelling, Helmholtz Centre for Environmental Research - UFZ, Leipzig, Germany
6 Department of Ecological Modelling, Helmholtz Centre for Environmental Research - UFZ, Leipzig, Germany; Institute of Forest Growth and Computer Sciences, Technische Universitaet Dresden, Tharandt, Germany
7 AMAP, IRD, CIRAD, CNRS, INRA, Université de Montpellier, Montpellier, France
8 Coordenação de Biodiversidade, Instituto Nacional de Pesquisas da Amazônia - INPA, Manaus, AM, Brazil
9 Programa Professor Visitante Nacional Sênior na Amazônia - CAPES, Universidade Federal Rural da Amazônia, Belém, PA, Brazil; Coordenação de Botânica, Museu Paraense Emílio Goeldi, Belém, PA, Brazil
10 EMBRAPA – Centro de Pesquisa Agroflorestal de Roraima, Boa Vista, RR, Brazil
11 School of Geography, University of Leeds, Leeds, UK
12 Grupo de Investigación en Biodiversidad, Medio Ambiente y Salud-BIOMAS, Universidad de las Américas, Quito, Ecuador; Keller Science Action Center, The Field Museum, Chicago, IL, USA
13 Departamento de Botânica, Instituto de Pesquisas Científicas e Tecnológicas do Amapá - IEPA, Amapá, Brazil
14 Herbario Amazónico Colombiano, Instituto SINCHI, Bogotá, DC, Colombia
15 Coordenação de Pesquisas em Ecologia, Instituto Nacional de Pesquisas da Amazônia - INPA, Manaus, AM, Brazil
16 Dep. of Wetland Ecology, Institute of Geography and Geoecology, Karlsruhe Institute of Technology - KIT, Rastatt, Germany; Biogeochemistry, Max Planck Institute for Chemistry, Mainz, Germany
17 Naturalis Biodiversity Center, Leiden, RA, The Netherlands
18 Coordenação de Dinâmica Ambiental, Instituto Nacional de Pesquisas da Amazônia - INPA, Manaus, AM, Brazil
19 Science and Education, The Field Museum, Chicago, IL, USA
20 Jardín Botánico de Missouri, Oxapampa, Pasco, Peru
21 Departamento de Ecologia, Universidade Estadual Paulista - UNESP – Instituto de Biociências – IB, Rio Claro, SP, Brazil
22 Divisao de Sensoriamento Remoto – DSR, Instituto Nacional de Pesquisas Espaciais – INPE, São José dos Campos, SP, Brazil
23 Herbario Vargas, Universidad Nacional de San Antonio Abad del Cusco, Cusco, Cuzco, Peru
24 Departamento de Geografia, Universidade Estadual Paulista -UNESP – Instituto de Geociências e Ciências Extas – IGCE, Bela Vista, Rio Claro, SP, Brazil
25 Centro de Biociências, Departamento de Ecologia, Universidade Federal do Rio Grande do Norte, Natal, RN, Brazil
26 Departamento de Biologia, Universidade Federal de Rondônia, Porto Velho, RO, Brazil
27 Programa de Pós- Graduação em Biodiversidade e Biotecnologia PPG- Bionorte, Universidade Federal de Rondônia, Porto Velho, RO, Brazil
28 Department of Biology and Florida Museum of Natural History, University of Florida, Gainesville, FL, USA; Centre for Tropical Environmental and Sustainability Science and College of Science and Engineering, James Cook University, Cairns, Queensland, Australia
29 Instituto de Investigaciones de la Amazonía Peruana (IIAP), Iquitos, Loreto, Peru; School of Geography, University of Leeds, Leeds, UK
30 Instituto Boliviano de Investigacion Forestal, Santa Cruz, Santa Cruz, Bolivia; Coordenação de Biodiversidade, Instituto Nacional de Pesquisas da Amazônia - INPA, Manaus, AM, Brazil
31 Geography, College of Life and Environmental Sciences, University of Exeter, Exeter, UK; School of Geography, University of Leeds, Leeds, UK
32 Departamento de Ciencias Forestales, Universidad Nacional de Colombia, Medellín, Antioquia, Colombia
33 Agteca-Amazonica, Santa Cruz, Bolivia
34 Facultad de Ciencias Agrícolas, Universidad Autónoma Gabriel René Moreno, Santa Cruz, Santa Cruz, Bolivia
35 Natural History Museum, University of Oslo, Oslo, Norway
36 International Center for Tropical Botany (ICTB) Department of Biological Sciences, Florida International University, Miami, FL, USA
37 AMAP, IRD, CIRAD, CNRS, INRA, Université de Montpellier, Montpellier, France; International Center for Tropical Botany (ICTB) Department of Biological Sciences, Florida International University, Miami, FL, USA
38 Cirad UMR Ecofog, AgrosParisTech, CNRS, INRA, Univ Guyane, Kourou Cedex, France
39 Centro de Investigaciones Ecológicas de Guayana, Universidad Nacional Experimental de Guayana, Puerto Ordaz, Bolivar, Venezuela
40 Prédio da Botânica e Ecologia, Embrapa Recursos Genéticos e Biotecnologia, Parque Estação Biológica, Brasilia, DF, Brazil
41 Projeto Dinâmica Biológica de Fragmentos Florestais, Instituto Nacional de Pesquisas da Amazônia - INPA, Manaus, AM, Brazil
42 Centre for Tropical Environmental and Sustainability Science and College of Science and Engineering, James Cook University, Cairns, Queensland, Australia
43 Laboratório de Ecologia de Doenças Transmissíveis da Amazônia (EDTA), Instituto Leônidas e Maria Deane, Fiocruz, Manaus, AM, Brazil; Programa de Pós-graduação em Biodiversidade e Saúde, Instituto Oswaldo Cruz - IOC/FIOCRUZ, Pav. Arthur Neiva – Térreo, Rio de Janeiro, RJ, Brazil
44 Instituto de Ciências Biológicas, Universidade Federal do Pará, Belém, PA, Brazil
45 Programa de Pós-Graduação em Ecologia, Universidade Federal do Pará, Belém, PA, Brazil; Embrapa Amazônia Oriental, Belém, PA, Brazil
46 Diretoria Técnico-Científica, Instituto de Desenvolvimento Sustentável Mamirauá, Tefé, AM, Brazil
47 Programa de Ciencias del Agro y el Mar, Herbario Universitario (PORT), UNELLEZ-Guanare, Guanare, Portuguesa, Venezuela
48 Coordenação de Botânica, Museu Paraense Emílio Goeldi, Belém, PA, Brazil
49 Coordenação de Dinâmica Ambiental, Instituto Nacional de Pesquisas da Amazônia - INPA, Manaus, AM, Brazil; School of Geography, University of Leeds, Leeds, UK
50 Laboratorio de Ecología de Bosques Tropicales y Primatología, Universidad de los Andes, Bogotá, DC, Colombia
51 Programa de Pós-Graduação em Biologia (Botânica), Instituto Nacional de Pesquisas da Amazônia - INPA, Manaus, AM, Brazil
52 Institute of Biodiversity and Ecosystem Dynamics, University of Amsterdam, Amsterdam, XH, The Netherlands
53 Endangered Species Coalition, Silver Spring, MD, USA
54 Museo de Historia Natural Noel Kempff Mercado, Universidad Autónoma Gabriel Rene Moreno, Santa Cruz, Santa Cruz, Bolivia
55 Facultad de Ciencias Forestales y Ambientales, Instituto de Investigaciones para el Desarrollo Forestal, Universidad de los Andes, Mérida, Mérida, Venezuela
56 Inventory and Monitoring Program, Fredericksburg, VA, USA; Center for Conservation and Sustainability, Smithsonian Conservation Biology Institute, Washington, DC, USA
57 Universidade Federal do Amapá, Ciências Ambientais, Macapá, AP, Brazil
58 Department of Integrative Biology, University of California, Berkeley, CA, USA
59 Biologia Vegetal, Universidade Estadual de Campinas, Campinas, SP, Brazil
60 Department of Global Ecology, Carnegie Institution for Science, Stanford, CA, USA; International Center for Tropical Botany (ICTB) Department of Biological Sciences, Florida International University, Miami, FL, USA
61 Institute of Molecular Plant Sciences, University of Edinburgh, Edinburgh, UK; Tropical Diversity Section, Royal Botanic Garden Edinburgh, Edinburgh, Scotland, UK
62 Coordenação de Dinâmica Ambiental, Instituto Nacional de Pesquisas da Amazônia - INPA, Manaus, AM, Brazil; Department of Ecology, University of Brasilia, Brasilia, DF, Brazil
63 Center for Conservation and Sustainability, Smithsonian Conservation Biology Institute, Washington, DC, USA
64 Coordenação de Botânica, Museu Paraense Emílio Goeldi, Belém, PA, Brazil; Programa de Pós-Graduação em Ciência Ambientais, Universidade Federal do Pará, Belém, PA, Brazil
65 Faculty of Natural Sciences, Department of Life Sciences, Imperial College London, London, UK
66 Ecosistemas, Biodiversidad y Conservación de Especies, Universidad Estatal Amazónica, Puyo, Pastaza, Ecuador
67 Coordenação de Pesquisas em Ecologia, Instituto Nacional de Pesquisas da Amazônia - INPA, Manaus, AM, Brazil; Universidade Federal de Minas Gerais, Instituto de Ciências Biológicas, Departamento de Genética, Ecologia e Evolução, Belo Horizonte, MG, Brazil
68 Coordenação de Pesquisas em Ecologia, Instituto Nacional de Pesquisas da Amazônia - INPA, Manaus, AM, Brazil; School of Geography, University of Leeds, Leeds, UK
69 Department of Biology, University of Miami, Coral Gables, FL, USA; Fairchild Tropical Botanic Garden, Coral Gables, FL, USA
70 Diretoria de Pesquisas Científicas, Instituto de Pesquisas Jardim Botânico do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
71 Coordenação de Biodiversidade, Instituto Nacional de Pesquisas da Amazônia - INPA, Manaus, AM, Brazil; Instituto de Biociências - Dept. Ecologia, Universidade de Sao Paulo - USP, Rua do Matão, São Paulo, SP, Brazil
72 Lancaster Environment Centre, Lancaster University, Lancaster, Lancashire, UK
73 Environmental Change Institute, University of Oxford, Oxford, Oxfordshire, UK
74 Embrapa Amazônia Oriental, Belém, PA, Brazil
75 Empresa Brasileira de Pesquisa Agropecuária, Embrapa Amapá, Macapá, Amapá, Brazil
76 Grupo de Investigación en Tecnologías de la Información y Medio Ambiente, Instituto Tecnológico de Antioquia - Institución Universitaria, Medellín, Colombia
77 Instituto Boliviano de Investigacion Forestal, Santa Cruz, Santa Cruz, Bolivia
78 Universidad Regional Amazónica IKIAM, Tena, Napo, Ecuador
79 Escuela de Biología Herbario Alfredo Paredes, Universidad Central, Quito, Pichincha, Ecuador
80 Taxonomy and Systematics, Naturalis Biodiversity Center, Leiden, RA, The Netherlands
81 Museu Universitário/Centro de Ciências Biológicas e da Natureza/Laboratório de Botânica e Ecologia Vegetal, Universidade Federal do Acre, Rio Branco, AC, Brazil
82 Institute of Biological and Health Sciences, Federal University of Alagoas, Maceio, AL, Brazil
83 Iwokrama International Centre for Rainforest Conservation, Georgetown, Guyana
84 New York Botanical Garden, New York, NY, USA
85 School of Geosciences, University of Edinburgh, Edinburgh, UK; Tropical Diversity Section, Royal Botanic Garden Edinburgh, Edinburgh, Scotland, UK
86 Natural Capital and Plant Health, Royal Botanic Gardens, Kew, Richmond, Surrey, UK
87 Geography, College of Life and Environmental Sciences, University of Exeter, Exeter, UK; Tropical Diversity Section, Royal Botanic Garden Edinburgh, Edinburgh, Scotland, UK
88 Servicios de Biodiversidad EIRL, Iquitos, Loreto, Peru
89 Herbario Nacional de Bolivia, Universitario UMSA, La Paz, La Paz, Bolivia; Center for Conservation and Sustainable Development, Missouri Botanical Garden, St. Louis, MO, USA
90 Department for Identification & Naming, Royal Botanic Gardens, Kew, Richmond, Surrey, UK
91 Department of Forestry Management, Universidad Nacional Agraria La Molina, Lima, Peru
92 School of Environmental Sciences, University of East Anglia, Norwich, UK
93 Biology Department and Center for Energy, Environment and Sustainability, Wake Forest University, Winston Salem, NC, USA
94 Center for Conservation and Sustainable Development, Missouri Botanical Garden, St. Louis, MO, USA
95 Laboratoire Evolution et Diversité Biologique, CNRS and Université Paul Sabatier, UMR 5174 EDB, Toulouse, France
96 Andes to Amazon Biodiversity Program, Madre de Dios, Madre de Dios, Peru
97 Department of Anthropology, University of Texas at Austin, Austin, TX, USA
98 Fundación Puerto Rastrojo, Bogotá, DC, Colombia
99 Colegio de Ciencias Biológicas y Ambientales-COCIBA & Galapagos Institute for the Arts and Sciences-GAIAS, Universidad San Francisco de Quito-USFQ, Quito, Pichincha, Ecuador; Department of Wildlife Ecology and Conservation, University of Florida, Gainesville, FL, USA
100 Fundación Estación de Biología, Bogotá, DC, Colombia
101 ICNHS, Federal University of Mato Grosso, Sinop, MT, Brazil
102 Direction régionale de la Guyane, ONF, Cayenne, French Guiana; AMAP, IRD, CIRAD, CNRS, INRA, Université de Montpellier, Montpellier, France
103 PROTERRA, Instituto de Investigaciones de la Amazonía Peruana (IIAP), Iquitos, Loreto, Peru
104 ACEER Foundation, Puerto Maldonado, Madre de Dios, Peru
105 Amazon Conservation Team, Paramaribo, Suriname
106 Institut de Ciència i Tecnologia Ambientals, Universitat Autònoma de Barcelona, Bellaterra, Barcelona, Spain
107 Environmental Change Institute, Oxford University Centre for the Environment, Dyson Perrins Building, Oxford, England, UK
108 Instituto de Ciencias Naturales, Universidad Nacional de Colombia, Bogotá, DC, Colombia
109 Instituto de Ciência Agrárias, Universidade Federal Rural da Amazônia, Belém, PA, Brazil
110 Escuela Profesional de Ingeniería Forestal, Universidad Nacional de San Antonio Abad del Cusco, Puerto Maldonado, Madre de Dios, Peru
111 Universidad Autónoma del Beni José Ballivián, Riberalta, Beni, Bolivia
112 Laboratory of Human Ecology, Instituto Venezolano de Investigaciones Científicas - IVIC, Caracas, Caracas, Venezuela
113 Laboratorio de Ecología de Bosques Tropicales y Primatología, Universidad de los Andes, Bogotá, DC, Colombia; Cambridge University Botanic Garden, 1 Brookside., Cambridge, UK
114 Laboratorio de Ecología de Bosques Tropicales y Primatología, Universidad de los Andes, Bogotá, DC, Colombia; School of Agriculture and Food Sciences - ARC Centre of Excellence for Environmental Decisions CEED, The University of Queensland, St. Lucia, QLD, Australia
115 University of Campinas, Plant Biology Department, São Paulo, CEP, Brazil
116 Resource Ecology Group, Wageningen University & Research, Wageningen, Gelderland, The Netherlands
117 Laboratório de Ciências Ambientais, Universidade Estadual do Norte Fluminense, Campos dos Goyatacazes, RJ, Brazil
118 Instituto de Biociências - Dept. Ecologia, Universidade de Sao Paulo - USP, Rua do Matão, São Paulo, SP, Brazil
119 Instituto de Investigaciones para el Desarrollo Forestal (INDEFOR), Universidad de los Andes, Conjunto Forestal, Mérida, Mérida, Venezuela
120 Departamento de Biologia, Universidade Federal do Amazonas - UFAM – Instituto de Ciências Biológicas – ICB1, Manaus, AM, Brazil
121 GeoIS, El Día 369y El Telégrafo, 3° Piso, Quito, Pichincha, Ecuador
122 Laboratorio de Ecología de Bosques Tropicales y Primatología, Universidad de los Andes, Bogotá, DC, Colombia; Department of Biology, University of Maryland, College Park, MD, USA
123 University of Nottingham, University Park, Nottingham, UK
124 Instituto de Investigaciones para el Desarrollo Forestal (INDEFOR), Universidad de los Andes, Conjunto Forestal, Mérida, Mérida, Venezuela; School of Environmental and Forest Sciences, University of Washington, Seattle, WA, USA
125 Environmental Science and Policy, Northern Arizona University, Flagstaff, AZ, USA
126 Geography and the Environment, University of Texas at Austin, Austin, TX, USA
127 Medio Ambiente, PLUSPRETOL, Iquitos, Loreto, Peru
128 The Mauritius Herbarium, Agricultural Services, Ministry of Agro-Industry and Food Security, Reduit, Mauritius; Instituto de Biociências - Dept. Ecologia, Universidade de Sao Paulo - USP, Rua do Matão, São Paulo, SP, Brazil
129 Department of Bioscience, Aarhus University, Aarhus, Denmark
130 FOMABO, Manejo Forestal en las Tierras Tropicales de Bolivia, Sacta, Cochabamba, Bolivia; Escuela de Ciencias Forestales (ESFOR), Universidad Mayor de San Simon (UMSS), Sacta, Cochabamba, Bolivia
131 Tropenbos International, Wageningen, The Netherlands
132 School of Anthropology and Conservation, University of Kent, Canterbury, Kent, UK
133 Herbario Nacional del Ecuador, Universidad Técnica del Norte, Quito, Pichincha, Ecuador
134 Instituto de Biodiversidade e Floresta, Universidade Federal do Oeste do Pará, Santarém, PA, Brazil
135 Facultad de Biologia, Universidad Nacional de la Amazonia Peruana, Iquitos, Loreto, Peru
136 Department of Biology, University of Missouri, St. Louis, MO, USA; Facultad de Biologia, Universidad Nacional de la Amazonia Peruana, Iquitos, Loreto, Peru