The global abundance of tree palms
2020
Muscarella, Robert | Emilio, Thaise | Phillips, Oliver L. | Lewis, Simon L. | Slik, Ferry | Baker, William J. | Couvreur, Thomas L. P. | Eiserhardt, Wolf L. | Svenning, Jens‐Christian | Affum‐Baffoe, Kofi | Aiba, Shin‐Ichiro | de Almeida, Everton C. | de Almeida, Samuel S. | de Oliveira, Edmar Almeida | Álvarez‐Dávila, Esteban | Alves, Luciana F. | Alvez‐Valles, Carlos Mariano | Carvalho, Fabrício Alvim | Guarin, Fernando Alzate | Andrade, Ana | Aragão, Luis E. O. C. | Araujo Murakami, Alejandro | Arroyo, Luzmila | Ashton, Peter S. | Corredor, Gerardo A Aymard | Baker, Timothy R. | de Camargo, Plinio Barbosa | Barlow, Jos | Bastin, Jean‐François | Bengone, Natacha Nssi | Berenguer, Erika | Berry, Nicholas O. | Blanc, Lilian | Böhning‐Gaese, Katrin | Bonal, Damien | Bongers, Frans | Bradford, Matt | Brambach, Fabian | Brearley, Francis Q. | Brewer, Steven W. | Camargo, Jose L. C. | Campbell, David G. | Castilho, Carolina V. | Castro, Wendeson | Catchpole, Damien | Cerón Martínez, Carlos E. | Chen, Shengbin | Chhang, Phourin | Cho, Percival | Chutipong, Wanlop | Clark, Connie | Collins, Murray | Comiskey, J. A. (James A.) | Medina, Massiel Nataly Corrales | Costa, Flávia R. C. | Culmsee, Heike | David‐Higuita, Heriberto | Davidar, Priya | del Aguila‐Pasquel, Jhon | Derroire, Géraldine | Di Fiore, Anthony | Van Do, Tran | Doucet, Jean‐Louis | Dourdain, Aurélie | Drake, Donald R. | Ensslin, Andreas | Erwin, Terry | Ewango, Corneille E. N. | Ewers, Robert M. | Fauset, Sophie | Feldpausch, Ted R. | Ferreira, Joice | Ferreira, Leandro Valle | Fischer, Markus | Franklin, Janet | Fredriksson, Gabriella M. | Gillespie, Thomas W. | Gilpin, Martin | Gonmadje, Christelle | Gunatilleke, Arachchige Upali Nimal | Hakeem, Khalid Rehman | Hall, Jefferson S. | Hamer, Keith C. | Harris, D. J. (David J.) | Harrison, Rhett D. | Hector, Andrew | Hemp, Andreas | Hérault, Bruno | Pizango, Carlos Gabriel Hidalgo | Coronado, Eurídice N Honorio | Hubau, Wannes | Hussain, Mohammad Shah | Ibrahim, Faridah‐Hanum | Imai, Nobuo | Joly, Carlos A. | Joseph, Shijo | K, Anitha | Kartawinata, Kuswata | Kassi, Justin | Killeen, Timothy J. | Kitayama, Kanehiro | Klitgård, Bente Bang | Kooyman, Robert | Labrière, Nicolas | Larney, Eileen | Laumonier, Yves | Laurance, Susan G. | Laurance, William F. | Lawes, Michael J. | Levesley, Aurora | Lisingo, Janvier | Lovejoy, Thomas | Lovett, Jon C. | Lu, Xinghui | Lykke, Anne Mette | Magnusson, William E. | Mahayani, Ni Putu Diana | Malhi, Y. (Yadvinder) | Asyraf Mansor, | Peña, Jose Luis Marcelo | Marimon‐Junior, Ben H. | Marshall, Andrew R. | Melgaco, Karina | Bautista, Casimiro Mendoza | Mihindou, Vianet | Millet, Jérôme | Milliken, William | Mohandass, D. | Mendoza, Abel Lorenzo Monteagudo | Mugerwa, Badru | Nagamasu, Hidetoshi | Nagy, László | Seuaturien, Naret | Nascimento, Marcelo T. | Neill, David A. | Neto, Luiz Menini | Nilus, Rueben | Vargas, Mario Percy Núñez | Nurtjahya, Eddy | de Araújo, R. Nazaré O. | Onrizal, Onrizal | Palacios, Walter A. | Palacios‐Ramos, Sonia | Parren, Marc | Paudel, Ekananda | Morandi, Paulo S. | Pennington, Toby | Pickavance, Georgia | Pipoly, John J. III | Pitman, Nigel C. A. | Poedjirahajoe, Erny | Poorter, L. (Lourens) | Poulsen, John R. | Rama Chandra Prasad, P. | Prieto, Adriana | Puyravaud, Jean‐Philippe | Qie, Lan | Quesada Mateo, Carlos A. | Ramírez‐Angulo, Hirma | Razafimahaimodison, Jean Claude | Reitsma, Jan Meindert | Requena‐Rojas, Edilson J. | Correa, Zorayda Restrepo | Reynel, Carlos | Roopsind, Anand | Rovero, Francesco | Rozak, Andes | Rudas Lleras, Agustín | Rutishauser, Ervan | Rutten, Gemma | Punchi‐Manage, Ruwan | Salomão, Rafael P. | Van Sam, Hoang | Sarker, Swapan Kumar | Satdichanh, Manichanh | Schietti, Juliana | Schmitt, Christine B. | Marimon, Beatriz Schwantes | Senbeta, Feyera | Nath Sharma, Lila | Sheil, Douglas | Sierra, Rodrigo | Silva‐Espejo, Javier E. | Silveira, Marcos | Sonké, Bonaventure | Steininger, Marc K. | Steinmetz, Robert | Stévart, Tariq | Sukumar, R. (Raman) | Sultana, Aisha | Sunderland, Terry C. H. | Suresh, Hebbalalu Satyanarayana | Tang, Jianwei | Tanner, Edmund | Steege, Hans ter | Terborgh, John W. | Theilade, Ida | Timberlake, Jonathan | Torres‐Lezama, Armando | Umunay, Peter | Uriarte, María | Gamarra, Luis Valenzuela | van de Bult, Martin | van der Hout, Peter | Vásquez, Rodolfo (Vásquez Martínez) | Vieira, Ima Célia Guimarães | Vieira, Simone A. | Vilanova, Emilio | Cayo, Jeanneth Villalobos | Wang, Ophelia | Webb, Campbell O. | Webb, Edward L. | White, Lee | Whitfeld, Timothy J. S. | Wich, Serge | Willcock, Simon | Wiser, Susan K. | Young, Kenneth R. | Zakaria, Rahmad | Zang, Runguo | Zartman, Charles E. | Zo‐Bi, Irié Casimir | Balslev, Henrik
AIM: Palms are an iconic, diverse and often abundant component of tropical ecosystems that provide many ecosystem services. Being monocots, tree palms are evolutionarily, morphologically and physiologically distinct from other trees, and these differences have important consequences for ecosystem services (e.g., carbon sequestration and storage) and in terms of responses to climate change. We quantified global patterns of tree palm relative abundance to help improve understanding of tropical forests and reduce uncertainty about these ecosystems under climate change. LOCATION: Tropical and subtropical moist forests. TIME PERIOD: Current. MAJOR TAXA STUDIED: Palms (Arecaceae). METHODS: We assembled a pantropical dataset of 2,548 forest plots (covering 1,191 ha) and quantified tree palm (i.e., ≥10 cm diameter at breast height) abundance relative to co‐occurring non‐palm trees. We compared the relative abundance of tree palms across biogeographical realms and tested for associations with palaeoclimate stability, current climate, edaphic conditions and metrics of forest structure. RESULTS: On average, the relative abundance of tree palms was more than five times larger between Neotropical locations and other biogeographical realms. Tree palms were absent in most locations outside the Neotropics but present in >80% of Neotropical locations. The relative abundance of tree palms was more strongly associated with local conditions (e.g., higher mean annual precipitation, lower soil fertility, shallower water table and lower plot mean wood density) than metrics of long‐term climate stability. Life‐form diversity also influenced the patterns; palm assemblages outside the Neotropics comprise many non‐tree (e.g., climbing) palms. Finally, we show that tree palms can influence estimates of above‐ground biomass, but the magnitude and direction of the effect require additional work. CONCLUSIONS: Tree palms are not only quintessentially tropical, but they are also overwhelmingly Neotropical. Future work to understand the contributions of tree palms to biomass estimates and carbon cycling will be particularly crucial in Neotropical forests.
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