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2. Consistent patterns of common species across tropical tree communities

Author

Cooper, Declan L.M., Lewis, Simon L., Sullivan, Martin J.P., Prado, Paulo I., ter Steege, Hans, Barbier, Nicolas, Slik, Ferry, Sonké, Bonaventure, Ewango, Corneille E.N., Adu-Bredu, Stephen, Affum-Baffoe, Kofi, de Aguiar, Daniel P.P., Ahuite Reategui, Manuel Augusto, Aiba, Shin-Ichiro, Albuquerque, Bianca Weiss, de Almeida Matos, Francisca Dionízia, Alonso, Alfonso, Amani, Christian A., do Amaral, Dário Dantas, do Amaral, Iêda Leão, Andrade, Ana, de Andrade Miranda, Ires Paula, Angoboy, Ilondea B., Araujo-Murakami, Alejandro, Arboleda, Nicolás Castaño, Arroyo, Luzmila, Ashton, Peter, Aymard C, Gerardo A., Baider, Cláudia, Baker, Timothy R., Balinga, Michael Philippe Bessike, Balslev, Henrik, Banin, Lindsay F., Bánki, Olaf S., Baraloto, Chris, Barbosa, Edelcilio Marques, Barbosa, Flávia Rodrigues, Barlow, Jos, Bastin, Jean-Francois, Beeckman, Hans, Begne, Serge, Bengone, Natacha Nssi, Berenguer, Erika, Berry, Nicholas, Bitariho, Robert, Boeckx, Pascal, Bogaert, Jan, Bonyoma, Bernard, Boundja, Patrick, Bourland, Nils, Boyemba Bosela, Faustin, Brambach, Fabian, Brienen, Roel, Burslem, David F.R.P., Camargo, José Luís, Campelo, Wegliane, Cano, Angela, Cárdenas, Sasha, Cárdenas López, Dairon, de Sá Carpanedo, Rainiellen, Carrero Márquez, Yrma Andreina, Carvalho, Fernanda Antunes, Casas, Luisa Fernanda, Castellanos, Hernán, Castilho, Carolina V., Cerón, Carlos, Chapman, Colin A., Chave, Jerome, Chhang, Phourin, Chutipong, Wanlop, Chuyong, George B., Cintra, Bruno Barçante Ladvocat, Clark, Connie J., Coelho de Souza, Fernanda, Comiskey, James A., Coomes, David A., Cornejo Valverde, Fernando, Correa, Diego F., Costa, Flávia R.C., Costa, Janaina Barbosa Pedrosa, Couteron, Pierre, Culmsee, Heike, Cuni-Sanchez, Aida, Dallmeier, Francisco, Damasco, Gabriel, Dauby, Gilles, Dávila, Nállarett, Dávila Doza, Hilda Paulette, De Alban, Jose Don T., de Assis, Rafael L., De Canniere, Charles, De Haulleville, Thales, de Jesus Veiga Carim, Marcelo, Demarchi, Layon O., Dexter, Kyle G., Di Fiore, Anthony, Din, Hazimah Haji Mohammad, Disney, Mathias I., Djiofack, Brice Yannick, Djuikouo, Marie-Noël K., Do, Tran Van, Doucet, Jean-Louis, Draper, Freddie C., Droissart, Vincent, Duivenvoorden, Joost F., Engel, Julien, Estienne, Vittoria, Farfan-Rios, William, Fauset, Sophie, Feeley, Kenneth J., Feitosa, Yuri Oliveira, Feldpausch, Ted R., Ferreira, Cid, Ferreira, Joice, Ferreira, Leandro Valle, Fletcher, Christine D., Flores, Bernardo Monteiro, Fofanah, Alusine, Foli, Ernest G., Fonty, Émile, Fredriksson, Gabriella M., Fuentes, Alfredo, Galbraith, David, Gallardo Gonzales, George Pepe, Garcia-Cabrera, Karina, García-Villacorta, Roosevelt, Gomes, Vitor H.F., Gómez, Ricardo Zárate, Gonzales, Therany, Gribel, Rogerio, Guedes, Marcelino Carneiro, Guevara, Juan Ernesto, Hakeem, Khalid Rehman, Hall, Jefferson S., Hamer, Keith C., Hamilton, Alan C., Harris, David J., Harrison, Rhett D., Hart, Terese B., Hector, Andy, Henkel, Terry W., Herbohn, John, Hockemba, Mireille B.N., Hoffman, Bruce, Holmgren, Milena, Honorio Coronado, Euridice N., Huamantupa-Chuquimaco, Isau, Hubau, Wannes, Imai, Nobuo, Irume, Mariana Victória, Jansen, Patrick A., Jeffery, Kathryn J., Jimenez, Eliana M., Jucker, Tommaso, Junqueira, André Braga, Kalamandeen, Michelle, Kamdem, Narcisse G., Kartawinata, Kuswata, Kasongo Yakusu, Emmanuel, Katembo, John M., Kearsley, Elizabeth, Kenfack, David, Kessler, Michael, Khaing, Thiri Toe, Killeen, Timothy J., Kitayama, Kanehiro, Klitgaard, Bente, Labrière, Nicolas, Laumonier, Yves, Laurance, Susan G.W., Laurance, William F., Laurent, Félix, Le, Tinh Cong, Le, Trai Trong, Leal, Miguel E., Leão de Moraes Novo, Evlyn Márcia, Levesley, Aurora, Libalah, Moses B., Licona, Juan Carlos, Lima Filho, Diógenes de Andrade, Lindsell, Jeremy A., Lopes, Aline, Lopes, Maria Aparecida, Lovett, Jon C., Lowe, Richard, Lozada, José Rafael, Lu, Xinghui, Luambua, Nestor K., Luize, Bruno Garcia, Maas, Paul, Magalhães, José Leonardo Lima, Magnusson, William E., Mahayani, Ni Putu Diana, Makana, Jean-Remy, Malhi, Yadvinder, Maniguaje Rincón, Lorena, Mansor, Asyraf, Manzatto, Angelo Gilberto, Marimon, Beatriz S., Marimon-Junior, Ben Hur, Marshall, Andrew R., Martins, Maria Pires, Mbayu, Faustin M., de Medeiros, Marcelo Brilhante, Mesones, Italo, Metali, Faizah, Mihindou, Vianet, Millet, Jerome, Milliken, William, Mogollón, Hugo F., Molino, Jean-François, Mohd. Said, Mohd. Nizam, Monteagudo Mendoza, Abel, Montero, Juan Carlos, Moore, Sam, Mostacedo, Bonifacio, Mozombite Pinto, Linder Felipe, Mukul, Sharif Ahmed, Munishi, Pantaleo K.T., Nagamasu, Hidetoshi, Nascimento, Henrique Eduardo Mendonça, Nascimento, Marcelo Trindade, Neill, David, Nilus, Reuben, Noronha, Janaína Costa, Nsenga, Laurent, Núñez Vargas, Percy, Ojo, Lucas, Oliveira, Alexandre A., de Oliveira, Edmar Almeida, Ondo, Fidèle Evouna, Palacios Cuenca, Walter, Pansini, Susamar, Pansonato, Marcelo Petratti, Paredes, Marcos Ríos, Paudel, Ekananda, Pauletto, Daniela, Pearson, Richard G., Pena, José Luis Marcelo, Pennington, R. Toby, Peres, Carlos A., Permana, Andrea, Petronelli, Pascal, Peñuela Mora, Maria Cristina, Phillips, Juan Fernando, Phillips, Oliver L., Pickavance, Georgia, Piedade, Maria Teresa Fernandez, Pitman, Nigel C.A., Ploton, Pierre, Popelier, Andreas, Poulsen, John R., Prieto, Adriana, Primack, Richard B., Priyadi, Hari, Qie, Lan, Quaresma, Adriano Costa, de Queiroz, Helder Lima, Ramirez-Angulo, Hirma, Ramos, José Ferreira, Reis, Neidiane Farias Costa, Reitsma, Jan, Revilla, Juan David Cardenas, Riutta, Terhi, Rivas-Torres, Gonzalo, Robiansyah, Iyan, Rocha, Maira, Rodrigues, Domingos de Jesus, Rodriguez-Ronderos, M. Elizabeth, Rovero, Francesco, Rozak, Andes H., Rudas, Agustín, Rutishauser, Ervan, Sabatier, Daniel, Sagang, Le Bienfaiteur, Sampaio, Adeilza Felipe, Samsoedin, Ismayadi, Satdichanh, Manichanh, Schietti, Juliana, Schöngart, Jochen, Scudeller, Veridiana Vizoni, Seuaturien, Naret, Sheil, Douglas, Sierra, Rodrigo, Silman, Miles R., Silva, Thiago Sanna Freire, da Silva Guimarães, José Renan, Simo-Droissart, Murielle, Simon, Marcelo Fragomeni, Sist, Plinio, Sousa, Thaiane R., de Sousa Farias, Emanuelle, de Souza Coelho, Luiz, Spracklen, Dominick V., Stas, Suzanne M., Steinmetz, Robert, Stevenson, Pablo R., Stropp, Juliana, Sukri, Rahayu S., Sunderland, Terry C.H., Suzuki, Eizi, Swaine, Michael D., Tang, Jianwei, Taplin, James, Taylor, David M., Tello, J. Sebastián, Terborgh, John, Texier, Nicolas, Theilade, Ida, Thomas, Duncan W., Thomas, Raquel, Thomas, Sean C., Tirado, Milton, Toirambe, Benjamin, de Toledo, José Julio, Tomlinson, Kyle W., Torres-Lezama, Armando, Tran, Hieu Dang, Tshibamba Mukendi, John, Tumaneng, Roven D., Umaña, Maria Natalia, Umunay, Peter M., Urrego Giraldo, Ligia Estela, Valderrama Sandoval, Elvis H., Valenzuela Gamarra, Luis, Van Andel, Tinde R., van de Bult, Martin, van de Pol, Jaqueline, van der Heijden, Geertje, Vasquez, Rodolfo, Vela, César I.A., Venticinque, Eduardo Martins, Verbeeck, Hans, Veridiano, Rizza Karen A., Vicentini, Alberto, Vieira, Ima Célia Guimarães, Vilanova Torre, Emilio, Villarroel, Daniel, Villa Zegarra, Boris Eduardo, Vleminckx, Jason, von Hildebrand, Patricio, Vos, Vincent Antoine, Vriesendorp, Corine, Webb, Edward L., White, Lee J.T., Wich, Serge, Wittmann, Florian, Zagt, Roderick, Zang, Runguo, Zartman, Charles Eugene, Zemagho, Lise, Zent, Egleé L., Zent, Stanford, Cooper, Declan L.M., Lewis, Simon L., Sullivan, Martin J.P., Prado, Paulo I., ter Steege, Hans, Barbier, Nicolas, Slik, Ferry, Sonké, Bonaventure, Ewango, Corneille E.N., Adu-Bredu, Stephen, Affum-Baffoe, Kofi, de Aguiar, Daniel P.P., Ahuite Reategui, Manuel Augusto, Aiba, Shin-Ichiro, Albuquerque, Bianca Weiss, de Almeida Matos, Francisca Dionízia, Alonso, Alfonso, Amani, Christian A., do Amaral, Dário Dantas, do Amaral, Iêda Leão, Andrade, Ana, de Andrade Miranda, Ires Paula, Angoboy, Ilondea B., Araujo-Murakami, Alejandro, Arboleda, Nicolás Castaño, Arroyo, Luzmila, Ashton, Peter, Aymard C, Gerardo A., Baider, Cláudia, Baker, Timothy R., Balinga, Michael Philippe Bessike, Balslev, Henrik, Banin, Lindsay F., Bánki, Olaf S., Baraloto, Chris, Barbosa, Edelcilio Marques, Barbosa, Flávia Rodrigues, Barlow, Jos, Bastin, Jean-Francois, Beeckman, Hans, Begne, Serge, Bengone, Natacha Nssi, Berenguer, Erika, Berry, Nicholas, Bitariho, Robert, Boeckx, Pascal, Bogaert, Jan, Bonyoma, Bernard, Boundja, Patrick, Bourland, Nils, Boyemba Bosela, Faustin, Brambach, Fabian, Brienen, Roel, Burslem, David F.R.P., Camargo, José Luís, Campelo, Wegliane, Cano, Angela, Cárdenas, Sasha, Cárdenas López, Dairon, de Sá Carpanedo, Rainiellen, Carrero Márquez, Yrma Andreina, Carvalho, Fernanda Antunes, Casas, Luisa Fernanda, Castellanos, Hernán, Castilho, Carolina V., Cerón, Carlos, Chapman, Colin A., Chave, Jerome, Chhang, Phourin, Chutipong, Wanlop, Chuyong, George B., Cintra, Bruno Barçante Ladvocat, Clark, Connie J., Coelho de Souza, Fernanda, Comiskey, James A., Coomes, David A., Cornejo Valverde, Fernando, Correa, Diego F., Costa, Flávia R.C., Costa, Janaina Barbosa Pedrosa, Couteron, Pierre, Culmsee, Heike, Cuni-Sanchez, Aida, Dallmeier, Francisco, Damasco, Gabriel, Dauby, Gilles, Dávila, Nállarett, Dávila Doza, Hilda Paulette, De Alban, Jose Don T., de Assis, Rafael L., De Canniere, Charles, De Haulleville, Thales, de Jesus Veiga Carim, Marcelo, Demarchi, Layon O., Dexter, Kyle G., Di Fiore, Anthony, Din, Hazimah Haji Mohammad, Disney, Mathias I., Djiofack, Brice Yannick, Djuikouo, Marie-Noël K., Do, Tran Van, Doucet, Jean-Louis, Draper, Freddie C., Droissart, Vincent, Duivenvoorden, Joost F., Engel, Julien, Estienne, Vittoria, Farfan-Rios, William, Fauset, Sophie, Feeley, Kenneth J., Feitosa, Yuri Oliveira, Feldpausch, Ted R., Ferreira, Cid, Ferreira, Joice, Ferreira, Leandro Valle, Fletcher, Christine D., Flores, Bernardo Monteiro, Fofanah, Alusine, Foli, Ernest G., Fonty, Émile, Fredriksson, Gabriella M., Fuentes, Alfredo, Galbraith, David, Gallardo Gonzales, George Pepe, Garcia-Cabrera, Karina, García-Villacorta, Roosevelt, Gomes, Vitor H.F., Gómez, Ricardo Zárate, Gonzales, Therany, Gribel, Rogerio, Guedes, Marcelino Carneiro, Guevara, Juan Ernesto, Hakeem, Khalid Rehman, Hall, Jefferson S., Hamer, Keith C., Hamilton, Alan C., Harris, David J., Harrison, Rhett D., Hart, Terese B., Hector, Andy, Henkel, Terry W., Herbohn, John, Hockemba, Mireille B.N., Hoffman, Bruce, Holmgren, Milena, Honorio Coronado, Euridice N., Huamantupa-Chuquimaco, Isau, Hubau, Wannes, Imai, Nobuo, Irume, Mariana Victória, Jansen, Patrick A., Jeffery, Kathryn J., Jimenez, Eliana M., Jucker, Tommaso, Junqueira, André Braga, Kalamandeen, Michelle, Kamdem, Narcisse G., Kartawinata, Kuswata, Kasongo Yakusu, Emmanuel, Katembo, John M., Kearsley, Elizabeth, Kenfack, David, Kessler, Michael, Khaing, Thiri Toe, Killeen, Timothy J., Kitayama, Kanehiro, Klitgaard, Bente, Labrière, Nicolas, Laumonier, Yves, Laurance, Susan G.W., Laurance, William F., Laurent, Félix, Le, Tinh Cong, Le, Trai Trong, Leal, Miguel E., Leão de Moraes Novo, Evlyn Márcia, Levesley, Aurora, Libalah, Moses B., Licona, Juan Carlos, Lima Filho, Diógenes de Andrade, Lindsell, Jeremy A., Lopes, Aline, Lopes, Maria Aparecida, Lovett, Jon C., Lowe, Richard, Lozada, José Rafael, Lu, Xinghui, Luambua, Nestor K., Luize, Bruno Garcia, Maas, Paul, Magalhães, José Leonardo Lima, Magnusson, William E., Mahayani, Ni Putu Diana, Makana, Jean-Remy, Malhi, Yadvinder, Maniguaje Rincón, Lorena, Mansor, Asyraf, Manzatto, Angelo Gilberto, Marimon, Beatriz S., Marimon-Junior, Ben Hur, Marshall, Andrew R., Martins, Maria Pires, Mbayu, Faustin M., de Medeiros, Marcelo Brilhante, Mesones, Italo, Metali, Faizah, Mihindou, Vianet, Millet, Jerome, Milliken, William, Mogollón, Hugo F., Molino, Jean-François, Mohd. Said, Mohd. Nizam, Monteagudo Mendoza, Abel, Montero, Juan Carlos, Moore, Sam, Mostacedo, Bonifacio, Mozombite Pinto, Linder Felipe, Mukul, Sharif Ahmed, Munishi, Pantaleo K.T., Nagamasu, Hidetoshi, Nascimento, Henrique Eduardo Mendonça, Nascimento, Marcelo Trindade, Neill, David, Nilus, Reuben, Noronha, Janaína Costa, Nsenga, Laurent, Núñez Vargas, Percy, Ojo, Lucas, Oliveira, Alexandre A., de Oliveira, Edmar Almeida, Ondo, Fidèle Evouna, Palacios Cuenca, Walter, Pansini, Susamar, Pansonato, Marcelo Petratti, Paredes, Marcos Ríos, Paudel, Ekananda, Pauletto, Daniela, Pearson, Richard G., Pena, José Luis Marcelo, Pennington, R. Toby, Peres, Carlos A., Permana, Andrea, Petronelli, Pascal, Peñuela Mora, Maria Cristina, Phillips, Juan Fernando, Phillips, Oliver L., Pickavance, Georgia, Piedade, Maria Teresa Fernandez, Pitman, Nigel C.A., Ploton, Pierre, Popelier, Andreas, Poulsen, John R., Prieto, Adriana, Primack, Richard B., Priyadi, Hari, Qie, Lan, Quaresma, Adriano Costa, de Queiroz, Helder Lima, Ramirez-Angulo, Hirma, Ramos, José Ferreira, Reis, Neidiane Farias Costa, Reitsma, Jan, Revilla, Juan David Cardenas, Riutta, Terhi, Rivas-Torres, Gonzalo, Robiansyah, Iyan, Rocha, Maira, Rodrigues, Domingos de Jesus, Rodriguez-Ronderos, M. Elizabeth, Rovero, Francesco, Rozak, Andes H., Rudas, Agustín, Rutishauser, Ervan, Sabatier, Daniel, Sagang, Le Bienfaiteur, Sampaio, Adeilza Felipe, Samsoedin, Ismayadi, Satdichanh, Manichanh, Schietti, Juliana, Schöngart, Jochen, Scudeller, Veridiana Vizoni, Seuaturien, Naret, Sheil, Douglas, Sierra, Rodrigo, Silman, Miles R., Silva, Thiago Sanna Freire, da Silva Guimarães, José Renan, Simo-Droissart, Murielle, Simon, Marcelo Fragomeni, Sist, Plinio, Sousa, Thaiane R., de Sousa Farias, Emanuelle, de Souza Coelho, Luiz, Spracklen, Dominick V., Stas, Suzanne M., Steinmetz, Robert, Stevenson, Pablo R., Stropp, Juliana, Sukri, Rahayu S., Sunderland, Terry C.H., Suzuki, Eizi, Swaine, Michael D., Tang, Jianwei, Taplin, James, Taylor, David M., Tello, J. Sebastián, Terborgh, John, Texier, Nicolas, Theilade, Ida, Thomas, Duncan W., Thomas, Raquel, Thomas, Sean C., Tirado, Milton, Toirambe, Benjamin, de Toledo, José Julio, Tomlinson, Kyle W., Torres-Lezama, Armando, Tran, Hieu Dang, Tshibamba Mukendi, John, Tumaneng, Roven D., Umaña, Maria Natalia, Umunay, Peter M., Urrego Giraldo, Ligia Estela, Valderrama Sandoval, Elvis H., Valenzuela Gamarra, Luis, Van Andel, Tinde R., van de Bult, Martin, van de Pol, Jaqueline, van der Heijden, Geertje, Vasquez, Rodolfo, Vela, César I.A., Venticinque, Eduardo Martins, Verbeeck, Hans, Veridiano, Rizza Karen A., Vicentini, Alberto, Vieira, Ima Célia Guimarães, Vilanova Torre, Emilio, Villarroel, Daniel, Villa Zegarra, Boris Eduardo, Vleminckx, Jason, von Hildebrand, Patricio, Vos, Vincent Antoine, Vriesendorp, Corine, Webb, Edward L., White, Lee J.T., Wich, Serge, Wittmann, Florian, Zagt, Roderick, Zang, Runguo, Zartman, Charles Eugene, Zemagho, Lise, Zent, Egleé L., and Zent, Stanford

Abstract

Trees structure the Earth’s most biodiverse ecosystem, tropical forests. The vast number of tree species presents a formidable challenge to understanding these forests, including their response to environmental change, as very little is known about most tropical tree species. A focus on the common species may circumvent this challenge. Here we investigate abundance patterns of common tree species using inventory data on 1,003,805 trees with trunk diameters of at least 10 cm across 1,568 locations1,2,3,4,5,6 in closed-canopy, structurally intact old-growth tropical forests in Africa, Amazonia and Southeast Asia. We estimate that 2.2%, 2.2% and 2.3% of species comprise 50% of the tropical trees in these regions, respectively. Extrapolating across all closed-canopy tropical forests, we estimate that just 1,053 species comprise half of Earth’s 800 billion tropical trees with trunk diameters of at least 10 cm. Despite differing biogeographic, climatic and anthropogenic histories7, we find notably consistent patterns of common species and species abundance distributions across the continents. This suggests that fundamental mechanisms of tree community assembly may apply to all tropical forests. Resampling analyses show that the most common species are likely to belong to a manageable list of known species, enabling targeted efforts to understand their ecology. Although they do not detract from the importance of rare species, our results open new opportunities to understand the world’s most diverse forests, including modelling their response to environmental change, by focusing on the common species that constitute the majority of their trees.

Published
2024

10. Asynchronous carbon sink saturation in African and Amazonian tropical forests

Author

Hubau, Wannes, Lewis, Simon L., Phillips, Oliver L., Affum-Baffoe, Kofi, Beeckman, Hans, Cuní-Sanchez, Aida, Daniels, Armandu K., Ewango, Corneille E.N., Fauset, Sophie, Mukinzi, Jacques M., Sheil, Douglas, Sonké, Bonaventure, Sullivan, Martin J.P., Sunderland, Terry C.H., Taedoumg, Hermann, Thomas, Sean C., White, Lee J.T., Abernethy, Katharine A., Adu-Bredu, Stephen, Amani, Christian A., Baker, Timothy R., Banin, Lindsay F., Baya, Fidèle, Begne, Serge K., Bennett, Amy C., Benedet, Fabrice, Bitariho, Robert, Bocko, Yannick E., Boeckx, Pascal, Boundja, Patrick, Brienen, Roel J.W., Brncic, Terry, Chezeaux, Eric, Chuyong, George B., Clark, Connie J., Collins, Murray, Comiskey, James A., Coomes, David A., Dargie, Greta C., de Haulleville, Thales, Kamdem, Marie Noel Djuikouo, Doucet, Jean-Louis, Esquivel-Muelbert, Adriane, Feldpausch, Ted R., Fofanah, Alusine, Foli, Ernest G., Gilpin, Martin, Gloor, Emanuel, Gonmadje, Christelle, Gourlet-Fleury, Sylvie, Hall, Jefferson S., Hamilton, Alan C., Harris, David J., Hart, Terese B., Hockemba, Mireille B.N., Hladik, Annette, Ifo, Suspense A., Jeffery, Kathryn J., Jucker, Tommaso, Yakusu, Emmanuel Kasongo, Kearsley, Elizabeth, Kenfack, David, Koch, Alexander, Leal, Miguel E., Levesley, Aurora, Lindsell, Jeremy A., Lisingo, Janvier, Lopez-Gonzalez, Gabriela, Lovett, Jon C., Makana, Jean-Remy, Malhi, Yadvinder, Marshall, Andrew R., Martin, Jim, Martin, Emanuel H., Mbayu, Faustin M., Medjibe, Vincent P., Mihindou, Vianet, Mitchard, Edward T.A., Moore, Sam, Munishi, Pantaleo K.T., Bengone, Natacha Nssi, Ojo, Lucas, Ondo, Fidèle Evouna, Peh, Kelvin S.-H., Pickavance, Georgia C., Poulsen, Axel Dalberg, Poulsen, John R., Qie, Lan, Reitsma, Jan, Rovero, Francesco, Swaine, Michael D., Talbot, Joey, Taplin, James, Taylor, David M., Thomas, Duncan W., Toirambe, Benjamin, Mukendi, John Tshibamba, Tuagben, Darlington, Umunay, Peter M., van der Heijden, Geertje M. F., Verbeeck, Hans, Vleminckx, Jason, Willcock, Simon, Wöll, Hannsjörg, Woods, John T., Zemagho, Lise, Hubau, Wannes, Lewis, Simon L., Phillips, Oliver L., Affum-Baffoe, Kofi, Beeckman, Hans, Cuní-Sanchez, Aida, Daniels, Armandu K., Ewango, Corneille E.N., Fauset, Sophie, Mukinzi, Jacques M., Sheil, Douglas, Sonké, Bonaventure, Sullivan, Martin J.P., Sunderland, Terry C.H., Taedoumg, Hermann, Thomas, Sean C., White, Lee J.T., Abernethy, Katharine A., Adu-Bredu, Stephen, Amani, Christian A., Baker, Timothy R., Banin, Lindsay F., Baya, Fidèle, Begne, Serge K., Bennett, Amy C., Benedet, Fabrice, Bitariho, Robert, Bocko, Yannick E., Boeckx, Pascal, Boundja, Patrick, Brienen, Roel J.W., Brncic, Terry, Chezeaux, Eric, Chuyong, George B., Clark, Connie J., Collins, Murray, Comiskey, James A., Coomes, David A., Dargie, Greta C., de Haulleville, Thales, Kamdem, Marie Noel Djuikouo, Doucet, Jean-Louis, Esquivel-Muelbert, Adriane, Feldpausch, Ted R., Fofanah, Alusine, Foli, Ernest G., Gilpin, Martin, Gloor, Emanuel, Gonmadje, Christelle, Gourlet-Fleury, Sylvie, Hall, Jefferson S., Hamilton, Alan C., Harris, David J., Hart, Terese B., Hockemba, Mireille B.N., Hladik, Annette, Ifo, Suspense A., Jeffery, Kathryn J., Jucker, Tommaso, Yakusu, Emmanuel Kasongo, Kearsley, Elizabeth, Kenfack, David, Koch, Alexander, Leal, Miguel E., Levesley, Aurora, Lindsell, Jeremy A., Lisingo, Janvier, Lopez-Gonzalez, Gabriela, Lovett, Jon C., Makana, Jean-Remy, Malhi, Yadvinder, Marshall, Andrew R., Martin, Jim, Martin, Emanuel H., Mbayu, Faustin M., Medjibe, Vincent P., Mihindou, Vianet, Mitchard, Edward T.A., Moore, Sam, Munishi, Pantaleo K.T., Bengone, Natacha Nssi, Ojo, Lucas, Ondo, Fidèle Evouna, Peh, Kelvin S.-H., Pickavance, Georgia C., Poulsen, Axel Dalberg, Poulsen, John R., Qie, Lan, Reitsma, Jan, Rovero, Francesco, Swaine, Michael D., Talbot, Joey, Taplin, James, Taylor, David M., Thomas, Duncan W., Toirambe, Benjamin, Mukendi, John Tshibamba, Tuagben, Darlington, Umunay, Peter M., van der Heijden, Geertje M. F., Verbeeck, Hans, Vleminckx, Jason, Willcock, Simon, Wöll, Hannsjörg, Woods, John T., and Zemagho, Lise

Abstract

Structurally intact tropical forests sequestered about half of the global terrestrial carbon uptake over the 1990s and early 2000s, removing about 15 per cent of anthropogenic carbon dioxide emissions. Climate-driven vegetation models typically predict that this tropical forest ‘carbon sink’ will continue for decades. Here we assess trends in the carbon sink using 244 structurally intact African tropical forests spanning 11 countries, compare them with 321 published plots from Amazonia and investigate the underlying drivers of the trends. The carbon sink in live aboveground biomass in intact African tropical forests has been stable for the three decades to 2015, at 0.66 tonnes of carbon per hectare per year (95 per cent confidence interval 0.53–0.79), in contrast to the long-term decline in Amazonian forests. Therefore the carbon sink responses of Earth’s two largest expanses of tropical forest have diverged. The difference is largely driven by carbon losses from tree mortality, with no detectable multi-decadal trend in Africa and a long-term increase in Amazonia. Both continents show increasing tree growth, consistent with the expected net effect of rising atmospheric carbon dioxide and air temperature. Despite the past stability of the African carbon sink, our most intensively monitored plots suggest a post-2010 increase in carbon losses, delayed compared to Amazonia, indicating asynchronous carbon sink saturation on the two continents. A statistical model including carbon dioxide, temperature, drought and forest dynamics accounts for the observed trends and indicates a long-term future decline in the African sink, whereas the Amazonian sink continues to weaken rapidly. Overall, the uptake of carbon into Earth’s intact tropical forests peaked in the 1990s. Given that the global terrestrial carbon sink is increasing in size, independent observations indicating greater recent carbon uptake into the Northern Hemisphere landmass reinforce our conclusion that the intac

Published
2020

11. Forty Years of Climate and Land-Cover Change and its Effects on Tourism Resources in Kilimanjaro National Park

Author

Kilungu, Halima, Leemans, Rik, Munishi, Pantaleo K.T., Nicholls, Sarah, Amelung, Bas, Kilungu, Halima, Leemans, Rik, Munishi, Pantaleo K.T., Nicholls, Sarah, and Amelung, Bas

Abstract

This study explores the effects of observed changes in rainfall, temperature and land cover on the physical and sightseeing aspects of trekking in Kilimanjaro National Park. The impact analysis is organised around hazard-activity pairs approach, combinations of environmental change aspects (such as higher temperatures) and tourism activities (such as trekking and sightseeing). The results suggest that higher temperatures and reduced rainfall have lowered the risks of landslides, rock fall and mountain sickness, improving physical trekking conditions. Changes in land cover have affected sightseeing: there now are more flowers and groundsels to admire and less wildlife, waterfalls and snow. In the short term, the disappearing snow may give rise to “last chance tourism”, increasing visitation, but eventually, the loss of snow and forest cover will likely decrease the number of tourists. The paper concludes that effective management of the attractions in the expanding heathlands is the most promising option to limit the losses.

Published
2019

13. Tropical forest canopies and their relationships with climate and disturbance: results from a global dataset of consistent field-based measurements

Author

Pfeifer, Marion, Gonsamo, Alemu, Woodgate, William, Cayuela, Luis, Marshall, Andrew R., Ledo, Alicia, Paine, Timothy C.E., Marchant, Rob, Burt, Andrew, Calders, Kim, Courtney-mustaphi, Colin, Cuni-sanchez, Aida, Deere, Nicolas J., Denu, Dereje, Gonzalez De Tanago Meñaca, J., Hayward, Robin, Lau Sarmiento, A.I., Macía, Manuel J., Olivier, Pieter I., Pellikka, Petri, Seki, Hamidu, Shirima, Deo, Trevithick, Rebecca, Wedeux, Beatrice, Wheeler, Charlotte, Munishi, Pantaleo K.T., Martin, Thomas, Mustari, Abdul, Platts, Philip J., Pfeifer, Marion, Gonsamo, Alemu, Woodgate, William, Cayuela, Luis, Marshall, Andrew R., Ledo, Alicia, Paine, Timothy C.E., Marchant, Rob, Burt, Andrew, Calders, Kim, Courtney-mustaphi, Colin, Cuni-sanchez, Aida, Deere, Nicolas J., Denu, Dereje, Gonzalez De Tanago Meñaca, J., Hayward, Robin, Lau Sarmiento, A.I., Macía, Manuel J., Olivier, Pieter I., Pellikka, Petri, Seki, Hamidu, Shirima, Deo, Trevithick, Rebecca, Wedeux, Beatrice, Wheeler, Charlotte, Munishi, Pantaleo K.T., Martin, Thomas, Mustari, Abdul, and Platts, Philip J.

Abstract

Background: Canopy structure, defined by leaf area index (LAI), fractional vegetation cover (FCover) and fraction of absorbed photosynthetically active radiation (fAPAR), regulates a wide range of forest functions and ecosystem services. Spatially consistent field-measurements of canopy structure are however lacking, particularly for the tropics. Methods: Here, we introduce the Global LAI database: a global dataset of field-based canopy structure measurements spanning tropical forests in four continents (Africa, Asia, Australia and the Americas). We use these measurements to test for climate dependencies within and across continents, and to test for the potential of anthropogenic disturbance and forest protection to modulate those dependences. Results: Using data collected from 887 tropical forest plots, we show that maximum water deficit, defined across the most arid months of the year, is an important predictor of canopy structure, with all three canopy attributes declining significantly with increasing water deficit. Canopy attributes also increase with minimum temperature, and with the protection of forests according to both active (within protected areas) and passive measures (through topography). Once protection and continent effects are accounted for, other anthropogenic measures (e.g. human population) do not improve the model. Conclusions: We conclude that canopy structure in the tropics is primarily a consequence of forest adaptation to the maximum water deficits historically experienced within a given region. Climate change, and in particular changes in drought regimes may thus affect forest structure and function, but forest protection may offer some resilience against this effect.

Published
2018

14. Population structure and carbon storage of critically endangered tree Karomia gigas(Faden) Verdic in the coastal forests of Lindi, Tanzania

Author

Mapunda, Kihomo K., Andrew, Samora M., and Munishi, Pantaleo K.T.

Abstract

Global biological loss is predominantly propelled by human activities resulting in the extinction of some important plant species while pushing others to the brink of critical danger. Better understanding of the ecology of these important species facilitates safeguarding their habitats and the development of sustainable restoration strategies. Data on vegetation, physiographic, edaphic and anthropogenic variables were collected from forty (40) concentric temporary circular plots in two forest reserves (i.e. Mitundumbea and Litipo Forest Reserves) to determine population structure and above-ground carbon storage of Karomia gigas(Faden) Verdic a critically endangered tree species in the coastal forests of Lindi, Tanzania. Within the Litipo Forest Reserve, we recorded a total of 30 K. gigasindividual trees, comprising 13 seedlings, 10 saplings and 7 mature trees. The largest measured diameter at breast height (dbh) in this forest was 29.2 cm while the smallest was 0.9 cm. In contrast, the Mitundumbea Forest Reserve had 15 mature K. gigasindividual trees but lacked seedlings and saplings. The largest dbh recorded in this forest stood at 59.7 cm, with the smallest dbh measurement being 5.1 cm. We overall observed significant negative correlations between the abundance of K. gigasadults and both soil organic carbon (P = 0.005) and burnt areas (P = 0.003). The total abundance of K. gigasshowed a negative association with soil organic carbon (P = 0.011). Furthermore, the carbon storage of K. gigasexhibited a negative relationship with burnt areas (P = 0.005) and a positive relationship with elevation (P = 0.016). None of the assessed physiographic, edaphic, and anthropogenic variables could explain the overall abundance of K. gigasseedlings and saplings. The average above-ground carbon stored by K. gigasin Litipo forest was 3.19 ± 0.72 t ha−1, while in Mitundumbea it was 12.76 ± 1.75 t ha−1. To increase the population size and restore this once-extinct tree species, anthropogenic fires must be controlled for plant diversity conservation and environmental sustainability.

Published
2024
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16. Estimating management costs of protected areas:a novel approach from the Eastern Arc Mountains, Tanzania

Author

Green, Jonathan M.H., Burgess, Neil David, Green, Rhys E., Madoffe, Seif S., Munishi, Pantaleo K.T., Nashanda, Evarist, Turner, R. Kerry, Balmford, Andrew, Green, Jonathan M.H., Burgess, Neil David, Green, Rhys E., Madoffe, Seif S., Munishi, Pantaleo K.T., Nashanda, Evarist, Turner, R. Kerry, and Balmford, Andrew

Abstract

Despite chronic underfunding for conservation and the recognition that funds must be invested wisely, few studies have analysed the direct costs of managing protected areas at the spatial scales needed to inform local site management. Using a questionnaire survey we collected data from protected area managers in the Eastern Arc Mountains (EAMs) of Tanzania to establish how much is currently spent on reserve management and how much is required to meet conservation objectives. We use an information theoretic approach to model spatial variation in these costs using a range of plausible, spatially explicit predictor variables, including a novel measure of anthropogenic pressure that measures the human pressure that accrues to any point in the landscape by taking into account all people in the landscape, inversely weighted by their distance to that point. Our models explain over 75% of variation in actual spend and over 40% of variation in necessary spend. Population pressure is a variable that has not been used to model protected area management costs before, yet proved to be considerably better at predicting both actual and necessary spend than other measures of anthropogenic pressure. We use our results to estimate necessary spend at a 9 km2 resolution across the EAM and highlight those areas where the management costs of effective management are predicted to be high. This information can be used by conservation planners in the region and can be estimated for future scenarios of population growth and migration.

Published
2012

17. Getting ready for REDD+ in Tanzania: a case study of progress and challenges

Author

Burgess, Neil D., primary, Bahane, Bruno, additional, Clairs, Tim, additional, Danielsen, Finn, additional, Dalsgaard, Søren, additional, Funder, Mikkel, additional, Hagelberg, Niklas, additional, Harrison, Paul, additional, Haule, Christognus, additional, Kabalimu, Kekilia, additional, Kilahama, Felician, additional, Kilawe, Edward, additional, Lewis, Simon L., additional, Lovett, Jon C., additional, Lyatuu, Gertrude, additional, Marshall, Andrew R., additional, Meshack, Charles, additional, Miles, Lera, additional, Milledge, Simon A.H., additional, Munishi, Pantaleo K.T., additional, Nashanda, Evarist, additional, Shirima, Deo, additional, Swetnam, Ruth D., additional, Willcock, Simon, additional, Williams, Andrew, additional, and Zahabu, Eliakim, additional

Published
2010
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18. Forests and woodlands of Tanzania : interactions between woody plant structure, diversity, carbon stocks and soil nutrient heterogeneity

Author

Shirima, Deo Dominick, Moe, Stein R., Totland, Ørjan, and Munishi, Pantaleo K.T.

Abstract

In recent years, structural components such as woody species richness, diversity, canopies and non-woody lifeforms in tropical forests and woodlands have experienced increasing rates of degradation and deforestation due to agricultural expansion and other land use changes. The decline in plant species diversity in forests and woodlands has negative effects on ecosystem processes and functions such as atmospheric carbon sequestration and mitigations of global climate changes. However, our knowledge on how varieties of structural components interacts with physiographic conditions and anthropogenic disturbances to influence ecosystem processes are limited. This knowledge gap has consequently undermined our understanding of the potential contributions of structural components in enhancing human wellbeing. This thesis consist of series of studies from a moist forest and miombo woodlands in Tanzania. The main aim was to relate structural components, such as tree species richness, canopy, carbon stocks and their interactions, with physiographic conditions, and anthropogenic disturbances. I explore (1) how do tree species richness relates to vertical heterogeneity, mean and depth specific soil nutrient availability. (2) do dominant tree species influence the richness, diversity, evenness and vertical structure heterogeneity of non-dominant tree species? (3) how do tree canopy characteristics relates to herbaceous biomass and tree species richness? (4) how do the aboveground carbon stocks of trees relate to tree species richness, diversity and evenness along gradients of physiographic conditions and anthropogenic disturbances? Using data from vegetation and soil surveys in a series of regression analyses, I showed that variation in tree species richness were better explained by mean than vertical heterogeneity in soil nutrient availability in moist forest, while in miombo woodlands, vertical heterogeneity explained a large part of the variations in tree species richness than mean soil nutrient availability. Nondominant tree species richness, Shannon diversity and evenness had negative linear and nonlinear relationships with the relative abundance of dominant tree species in wet and dry miombo woodlands. Moreover, tree species structure, physiographic conditions and anthropogenic disturbances explained over 50 % of the variations in leaf area index (LAI) and nearly 20 % of the variations in aboveground herbaceous biomass (AGBH) in moist forest and miombo woodlands. Furthermore, aboveground carbon stocks of trees were unimodal, positive or negative linearly related to tree species richness, evenness and abiotic factors in the two vegetation types. X The relationships between structural components, physiographic conditions and anthropogenic disturbances has consequences on ecosystem properties such as carbon storage and sequestration, and biodiversity. Understanding of how structural components interact with environmental conditions and anthropogenic disturbances is a step towards establishing the potential contributions of forest and woodlands to local livelihoods. Thus, management of forests and woodlands in Tanzania require strategies that maintains the existing structural complexity. CCIAM

Published
2019

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