LIVIVO - The Search Portal for Life Sciences

zur deutschen Oberfläche wechseln
Advanced search

Search results

Result 1 - 10 of total 29

Search options

  1. Article ; Online: Implications of size-dependent tree mortality for tropical forest carbon dynamics.

    Gora, Evan M / Esquivel-Muelbert, Adriane

    Nature plants

    2021  Volume 7, Issue 4, Page(s) 384–391

    Abstract: Tropical forests are mitigating the ongoing climate crisis by absorbing more atmospheric carbon than they emit. However, widespread increases in tree mortality rates are decreasing the ability of tropical forests to assimilate and store carbon. A ... ...

    Abstract Tropical forests are mitigating the ongoing climate crisis by absorbing more atmospheric carbon than they emit. However, widespread increases in tree mortality rates are decreasing the ability of tropical forests to assimilate and store carbon. A relatively small number of large trees dominate the contributions of these forests to the global carbon budget, yet we know remarkably little about how these large trees die. Here, we propose a cohesive and empirically informed framework for understanding and investigating size-dependent drivers of tree mortality. This theory-based framework enables us to posit that abiotic drivers of tree mortality-particularly drought, wind and lightning-regulate tropical forest carbon cycling via their disproportionate effects on large trees. As global change is predicted to increase the pressure from abiotic drivers, the associated deaths of large trees could rapidly and lastingly reduce tropical forest biomass stocks. Focused investigations of large tree death are needed to understand how shifting drivers of mortality are restructuring carbon cycling in tropical forests.
    MeSH term(s) Biomass ; Carbon Cycle ; Droughts ; Forests ; Population Dynamics ; Trees/growth & development ; Trees/physiology ; Tropical Climate
    Language English
    Publishing date 2021-03-29
    Publishing country England
    Document type Journal Article ; Review
    ISSN 2055-0278
    ISSN (online) 2055-0278
    DOI 10.1038/s41477-021-00879-0
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  2. Article ; Online: Critical transitions in the Amazon forest system.

    Flores, Bernardo M / Montoya, Encarni / Sakschewski, Boris / Nascimento, Nathália / Staal, Arie / Betts, Richard A / Levis, Carolina / Lapola, David M / Esquível-Muelbert, Adriane / Jakovac, Catarina / Nobre, Carlos A / Oliveira, Rafael S / Borma, Laura S / Nian, Da / Boers, Niklas / Hecht, Susanna B / Ter Steege, Hans / Arieira, Julia / Lucas, Isabella L /
    Berenguer, Erika / Marengo, José A / Gatti, Luciana V / Mattos, Caio R C / Hirota, Marina

    Nature

    2024  Volume 626, Issue 7999, Page(s) 555–564

    Abstract: The possibility that the Amazon forest system could soon reach a tipping point, inducing large-scale collapse, has raised global ... ...

    Abstract The possibility that the Amazon forest system could soon reach a tipping point, inducing large-scale collapse, has raised global concern
    MeSH term(s) Droughts/statistics & numerical data ; Feedback ; Forests ; Global Warming/prevention & control ; Global Warming/statistics & numerical data ; Trees/growth & development ; Wildfires/statistics & numerical data ; Uncertainty ; Environmental Restoration and Remediation/trends
    Language English
    Publishing date 2024-02-14
    Publishing country England
    Document type Journal Article
    ZDB-ID 120714-3
    ISSN 1476-4687 ; 0028-0836
    ISSN (online) 1476-4687
    ISSN 0028-0836
    DOI 10.1038/s41586-023-06970-0
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  3. Article ; Online: Standardized drought indices in ecological research: Why one size does not fit all.

    Zang, Christian S / Buras, Allan / Esquivel-Muelbert, Adriane / Jump, Alistair S / Rigling, Andreas / Rammig, Anja

    Global change biology

    2019  Volume 26, Issue 2, Page(s) 322–324

    Abstract: While we generally agree with Slette et al. (Global Change Biol, 2019), that ecologists 'should do better' when defining drought in ecological studies, we argue against the uncritical use of a standardized drought index (such as the Standardized ... ...

    Abstract While we generally agree with Slette et al. (Global Change Biol, 2019), that ecologists 'should do better' when defining drought in ecological studies, we argue against the uncritical use of a standardized drought index (such as the Standardized Precipitation and Evapotranspiration Index, SPEI; Vicente-Serrano et al. J Climate, 23: 1696-1718, 2010), as a stand-alone criterium for quantifying and reporting drought conditions. Specifically, we raise the following issues: (a) standardization can lead to a misrepresentation of actual water supply, especially for moist climates; (b) standardized values are not directly comparable between different reference periods; and finally, (c) spatially coarsely resolved data sources are unlikely to represent site-level water supply. This article is a commentary on Slette et al., 25, 3193-3200; See also the response to this Letter to the Editor by Slette et al., 26, e1-e3.
    MeSH term(s) Climate ; Droughts ; Ecology
    Language English
    Publishing date 2019-09-13
    Publishing country England
    Document type Letter ; Comment
    ZDB-ID 1281439-8
    ISSN 1365-2486 ; 1354-1013
    ISSN (online) 1365-2486
    ISSN 1354-1013
    DOI 10.1111/gcb.14809
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  4. Article ; Online: Climate Change Risks to Global Forest Health: Emergence of Unexpected Events of Elevated Tree Mortality Worldwide.

    Hartmann, Henrik / Bastos, Ana / Das, Adrian J / Esquivel-Muelbert, Adriane / Hammond, William M / Martínez-Vilalta, Jordi / McDowell, Nate G / Powers, Jennifer S / Pugh, Thomas A M / Ruthrof, Katinka X / Allen, Craig D

    Annual review of plant biology

    2022  Volume 73, Page(s) 673–702

    Abstract: Recent observations of elevated tree mortality following climate extremes, like heat and drought, raise concerns about climate change risks to global forest health. We currently lack both sufficient data and understanding to identify whether these ... ...

    Abstract Recent observations of elevated tree mortality following climate extremes, like heat and drought, raise concerns about climate change risks to global forest health. We currently lack both sufficient data and understanding to identify whether these observations represent a global trend toward increasing tree mortality. Here, we document events of sudden and unexpected elevated tree mortality following heat and drought events in ecosystems that previously were considered tolerant or not at risk of exposure. These events underscore the fact that climate change may affect forests with unexpected force in the future. We use the events as examples to highlight current difficulties and challenges for realistically predicting such tree mortality events and the uncertainties about future forest condition. Advances in remote sensing technology and greater availably of high-resolution data, from both field assessments and satellites, are needed to improve both understanding and prediction of forest responses to future climate change.
    MeSH term(s) Climate Change ; Droughts ; Ecosystem ; Forests ; Trees/physiology
    Language English
    Publishing date 2022-03-01
    Publishing country United States
    Document type Journal Article ; Review ; Research Support, U.S. Gov't, Non-P.H.S.
    ZDB-ID 2098209-4
    ISSN 1545-2123 ; 1543-5008
    ISSN (online) 1545-2123
    ISSN 1543-5008
    DOI 10.1146/annurev-arplant-102820-012804
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  5. Article: Idiosyncratic soil-tree species associations and their relationships with drought in a monodominant Amazon forest

    Elias, F. / Marimon, B. S. / Marimon-Junior, B. H. / Budke, J. C. / Esquivel-Muelbert, A. / Morandi, P. S. / Reis, S. M. / Phillips, O. L.

    Acta oecologica

    2018  Volume 91, Issue -, Page(s) 127

    Document type Article
    ZDB-ID 1033625-4
    ISSN 1146-609X
    Database Current Contents Nutrition, Environment, Agriculture

    More links

    Kategorien

  6. Article ; Online: Past decade above-ground biomass change comparisons from four multi-temporal global maps

    Araza, Arnan / Herold, Martin / Bruin, Sytze de / Ciais, Philippe / Gibbs, David A. / Harris, Nancy / Santoro, Maurizio / Wigneron, Jean-Pierre / Yang, Hui / Málaga, Natalia / Nesha, Karimon / Rodríguez Veiga, Pedro / Brovkina, Olga / Brown, Hugh C. A. / Chanev, Milen / Dimitrov, Zlatomir / Filchev, Lachezar / Fridman, Jonas / García, Mariano /
    Gikov, Alexander / Govaere, Leen / Dimitrov, Petar / Moradi, Fardin / Esquivel Muelbert, Adriane / Novotný, Jan / Pugh, Thomas A. M. / Schelhaas, Mart-Jan / Schepaschenko, Dmitry / Stereńczak, Krzysztof / Hein, Lars

    International Journal of Applied Earth Observation and Geoinformation

    2023  

    Abstract: Above-ground biomass (AGB) is considered an essential climate variable that underpins our knowledge and information about the role of forests in mitigating climate change. The availability of satellite-based AGB and AGB change (AGB) products has ... ...

    Abstract Above-ground biomass (AGB) is considered an essential climate variable that underpins our knowledge and information about the role of forests in mitigating climate change. The availability of satellite-based AGB and AGB change (AGB) products has increased in recent years. Here we assessed the past decade net AGB derived from four recent global multi-date AGB maps: ESA-CCI maps, WRI-Flux model, JPL time series, and SMOS-LVOD time series. Our assessments explore and use different reference data sources with biomass re-measurements within the past decade. The reference data comprise National Forest Inventory (NFI) plot data, local AGB maps from airborne LiDAR, and selected Forest Resource Assessment country data from countries with well-developed monitoring capacities. Map to reference data comparisons were performed at levels ranging from 100 m to 25 km spatial scale. The comparisons revealed that LiDAR data compared most reasonably with the maps, while the comparisons using NFI only showed some agreements at aggregation levels 10 km. Regardless of the aggregation level, AGB losses and gains according to the map comparisons were consistently smaller than the reference data. Map-map comparisons at 25 km highlighted that the maps consistently captured AGB losses in known deforestation hotspots. The comparisons also identified several carbon sink regions consistently detected by all maps. However, disagreement between maps is still large in key forest regions such as the Amazon basin. The overall AGB map cross-correlation between maps varied in the range 0.11–0.29 (r). Reported AGB magnitudes were largest in the high-resolution datasets including the CCI map differencing (stock change) and Flux model (gain-loss) methods, while they were smallest according to the coarser-resolution LVOD and JPL time series products, especially for AGB gains. Our results suggest that AGB assessed from current maps can be biased and any use of the estimates should take that into account. Currently, AGB reference data are sparse ...
    Keywords biomass ; maps ; data ; spatial data ; carbon cycle ; earth observation satellites
    Language English
    Publishing date 2023-04-26T19:36:18Z
    Publisher Elsevier
    Publishing country fr
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    More links

    Kategorien

  7. Article ; Online: Biogeographic distributions of neotropical trees reflect their directly measured drought tolerances.

    Esquivel-Muelbert, Adriane / Galbraith, David / Dexter, Kyle G / Baker, Timothy R / Lewis, Simon L / Meir, Patrick / Rowland, Lucy / Costa, Antonio Carlos Lola da / Nepstad, Daniel / Phillips, Oliver L

    Scientific reports

    2017  Volume 7, Issue 1, Page(s) 8334

    Abstract: High levels of species diversity hamper current understanding of how tropical forests may respond to environmental change. In the tropics, water availability is a leading driver of the diversity and distribution of tree species, suggesting that many ... ...

    Abstract High levels of species diversity hamper current understanding of how tropical forests may respond to environmental change. In the tropics, water availability is a leading driver of the diversity and distribution of tree species, suggesting that many tropical taxa may be physiologically incapable of tolerating dry conditions, and that their distributions along moisture gradients can be used to predict their drought tolerance. While this hypothesis has been explored at local and regional scales, large continental-scale tests are lacking. We investigate whether the relationship between drought-induced mortality and distributions holds continentally by relating experimental and observational data of drought-induced mortality across the Neotropics to the large-scale bioclimatic distributions of 115 tree genera. Across the different experiments, genera affiliated to wetter climatic regimes show higher drought-induced mortality than dry-affiliated ones, even after controlling for phylogenetic relationships. This pattern is stronger for adult trees than for saplings or seedlings, suggesting that the environmental filters exerted by drought impact adult tree survival most strongly. Overall, our analysis of experimental, observational, and bioclimatic data across neotropical forests suggests that increasing moisture-stress is indeed likely to drive significant changes in floristic composition.
    MeSH term(s) Droughts ; Ecosystem ; Forests ; Phylogeography ; Trees/growth & development ; Tropical Climate
    Language English
    Publishing date 2017-08-21
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2615211-3
    ISSN 2045-2322 ; 2045-2322
    ISSN (online) 2045-2322
    ISSN 2045-2322
    DOI 10.1038/s41598-017-08105-8
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  8. Article ; Online: Basin-wide variation in tree hydraulic safety margins predicts the carbon balance of Amazon forests.

    Tavares, Julia Valentim / Oliveira, Rafael S / Mencuccini, Maurizio / Signori-Müller, Caroline / Pereira, Luciano / Diniz, Francisco Carvalho / Gilpin, Martin / Marca Zevallos, Manuel J / Salas Yupayccana, Carlos A / Acosta, Martin / Pérez Mullisaca, Flor M / Barros, Fernanda de V / Bittencourt, Paulo / Jancoski, Halina / Scalon, Marina Corrêa / Marimon, Beatriz S / Oliveras Menor, Imma / Marimon, Ben Hur / Fancourt, Max /
    Chambers-Ostler, Alexander / Esquivel-Muelbert, Adriane / Rowland, Lucy / Meir, Patrick / Lola da Costa, Antonio Carlos / Nina, Alex / Sanchez, Jesus M B / Tintaya, Jose S / Chino, Rudi S C / Baca, Jean / Fernandes, Leticia / Cumapa, Edwin R M / Santos, João Antônio R / Teixeira, Renata / Tello, Ligia / Ugarteche, Maira T M / Cuellar, Gina A / Martinez, Franklin / Araujo-Murakami, Alejandro / Almeida, Everton / da Cruz, Wesley Jonatar Alves / Del Aguila Pasquel, Jhon / Aragāo, Luís / Baker, Timothy R / de Camargo, Plinio Barbosa / Brienen, Roel / Castro, Wendeson / Ribeiro, Sabina Cerruto / Coelho de Souza, Fernanda / Cosio, Eric G / Davila Cardozo, Nallaret / da Costa Silva, Richarlly / Disney, Mathias / Espejo, Javier Silva / Feldpausch, Ted R / Ferreira, Leandro / Giacomin, Leandro / Higuchi, Niro / Hirota, Marina / Honorio, Euridice / Huaraca Huasco, Walter / Lewis, Simon / Flores Llampazo, Gerardo / Malhi, Yadvinder / Monteagudo Mendoza, Abel / Morandi, Paulo / Chama Moscoso, Victor / Muscarella, Robert / Penha, Deliane / Rocha, Mayda Cecília / Rodrigues, Gleicy / Ruschel, Ademir R / Salinas, Norma / Schlickmann, Monique / Silveira, Marcos / Talbot, Joey / Vásquez, Rodolfo / Vedovato, Laura / Vieira, Simone Aparecida / Phillips, Oliver L / Gloor, Emanuel / Galbraith, David R

    Nature

    2023  Volume 617, Issue 7959, Page(s) 111–117

    Abstract: Tropical forests face increasing climate ... ...

    Abstract Tropical forests face increasing climate risk
    MeSH term(s) Biomass ; Carbon/metabolism ; Droughts ; Forests ; Trees/growth & development ; Trees/metabolism ; Tropical Climate ; Xylem/metabolism ; Rain ; Climate Change ; Carbon Sequestration ; Stress, Physiological ; Dehydration
    Chemical Substances Carbon (7440-44-0)
    Language English
    Publishing date 2023-04-26
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Research Support, U.S. Gov't, Non-P.H.S.
    ZDB-ID 120714-3
    ISSN 1476-4687 ; 0028-0836
    ISSN (online) 1476-4687
    ISSN 0028-0836
    DOI 10.1038/s41586-023-05971-3
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  9. Article ; Online: Asynchronous carbon sink saturation in African and Amazonian tropical forests

    Hubau, W. / Lewis, S.L. / Phillips, O.L. / Affum-Baffoe, K. / Beeckman, H. / Cuní-Sanchez, A. / Daniels, A.K. / Ewango, C.E.N. / Fauset, S. / Mukinzi, J.M. / Sheil, D. / Sonké, B. / Sullivan, M.J.P. / Sunderland, T.C.H. / Taedoumg, H.E. / Thomas, S.C. / White, L.J.T. / Abernethy, K.A. / Adu-Bredu, S. /
    Amani, C.A. / Baker, T.R. / Banin, L.F. / Baya, F. / Begne, S.K. / Bennett, A.C. / Benedet, F. / Bitariho, R. / Bocko, Y.E. / Boeckx, P. / Boundja, P. / Brienen, R.J.W. / Brncic, T. / Chezeaux, E. / Chuyong, G.B. / Clark, C.J. / Collins, M. / Comiskey, J.A. / Coomes, D.A. / Dargie, G.C. / Haulleville, T. de / Kamdem, M.N.D. / Doucet, J.-L. / Esquivel-Muelbert, A. / Feldpausch, T.R. / Fofanah, A. / Foli, E.G. / Gilpin, M. / Gloor, E. / Gonmadje, C. / Gourlet-Fleury, S. / Hall, J.S. / Hamilton, A.C. / Harris, D.J. / Hart, T.B. / Hockemba, M.B.N. / Hladik, A. / Ifo, S.A. / Jeffery, K.J. / Jucker, T. / Yakusu, E.K. / Kearsley, E. / Kenfack, D. / Koch, A. / Leal, M.E. / Levesley, A. / Lindsell, J.A. / Lisingo, J. / López Gonzalez, G. / Lovett, J.C. / Makana, J.-R. / Malhi, Y. / Marshall, A.R. / Martin, J. / Martin, E.H. / Mbayu, F.M. / Medjibe, V.P. / Mihindou, V. / Mitchard, E.T.A. / Moore, S. / Munishi, P.K.T. / Bengone, N.N. / Ojo, L. / Ondo, F.E. / Peh, K.S.H. / Pickavance, G.C. / Poulsen, A.D. / Poulsen, J.R. / Qie, L. / Reitsma, J. / Rovero, F. / Swaine, M.D. / Talbot, J. / Taplin, J. / Taylor, D.M. / Thomas, D.W. / Toirambe, B. / Mukendi, J.T. / Tuagben, D. / Umunay, P.M. / Heijden, G.M.F. van der / Verbeeck, H. / Vleminckx, J. / Willcock, S. / Wöll, H. / Woods, J.T. / Zemagho, L.

    2021  

    Keywords tropical forests ; carbon ; emissions ; biomass ; carbon sinks
    Language English
    Publishing date 2021-03-08T08:18:17Z
    Publisher Springer
    Publishing country fr
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    More links

    Kategorien

  10. Article ; Online: Sensitivity of South American tropical forests to an extreme climate anomaly

    Bennett, Amy / Rodrigues de sousa, Thaiane / Monteagudo-Mendoza, Abel / Esquivel-Muelbert, Adriane / Morandi, Paulo / Coelho de souza, Fernanda / Castro, Wendeson / Duque, Luisa / Flores llampazo, Gerardo / Manoel dos santos, Rubens / Ramos, Eliana / Vilanova torre, Emilio / Alvarez-Davila, Esteban / Baker, Timothy / Costa, Flávia / Lewis, Simon / Marimon, Beatriz / Schietti, Juliana / Burban, Benoît /
    Berenguer, Erika / Araujo-Murakami, Alejandro / Restrepo correa, Zorayda / Lopez, Wilmar / Delgado santana, Flávia / Viscarra, Laura Jessica / Elias, Fernando / Vasquez martinez, Rodolfo / Marimon-Junior, Ben / Galbraith, David / Sullivan, Martin / Emilio, Thaise / Prestes, Nayane / Barlow, Jos / Alencar Fagundes, Nathalle / Almeida de Oliveira, Edmar / Alvarez Loayza, Patricia / Alves, Luciana / Aparecida Vieira, Simone / Andrade Maia, Vinícius / Aragão, Luiz / Arets, Eric / Arroyo, Luzmila / Bánki, Olaf / Baraloto, Christopher / Barbosa Camargo, Plínio / Barroso, Jorcely / Bento da Silva, Wilder / Bonal, Damien / Maës dos santos, Flavio / Brienen, Roel / Brown, Foster / Castilho, Carolina / Cerruto ribeiro, Sabina / Chama moscoso, Victor / Chavez, Ezequiel / Comiskey, James / Cornejo valverde, Fernando / Dávila cardozo, Nállarett / De aguiar-Campos, Natália / De oliveira melo, Lia / Del aguila pasquel, Jhon / Derroire, Géraldine / Disney, Mathias / Do Socorro, Maria / Dourdain, Aurélie / Feldpausch, Ted / Ferreira, Joice / Forni martins, Valeria / Gardner, Toby / Gloor, Emanuel / Gutierrez sibauty, Gloria / Guillen, René / Hase, Eduardo / Hérault, Bruno / Honorio coronado, Eurídice / Huaraca huasco, Walter / Janovec, John / Jimenez-Rojas, Eliana / Joly, Carlos / Kalamandeen, Michelle / Killeen, Timothy / Lais farrapo, Camila / Levesley, Aurora / Lizon romano, Leon / Lopez gonzalez, Gabriela / Magnusson, William / Malhi, Yadvinder / Matias de almeida reis, Simone / Melgaço, Karina / Melo cruz, Omar / Mendoza polo, Irina / Montañez, Tatiana / Morel, Jean / Núñez vargas, Percy / Oliveira de araújo, Raimunda / Pallqui camacho, Nadir / Parada gutierrez, Alexander / Pennington, Toby / Pickavance, Georgia / Pipoly, John / Pitman, Nigel / Quesada, Carlos / Ramirez arevalo, Freddy / Ramírez‐angulo, Hirma / Flora ramos, Rafael / Rodrigo de souza, Cléber / Roopsind, Anand / Schwartz, Gustavo / Silva, Richarlly / Silva espejo, Javier / Silveira, Marcos / Singh, James / Soto shareva, Yhan / Steininger, Marc / Stropp, Juliana / Talbot, Joey / Ter steege, Hans / Terborgh, John / Thomas, Raquel / Valenzuela gamarra, Luis / Van der heijden, Geertje / Van der hout, Peter / Zagt, Roderick / Phillips, Oliver

    Nature Climate Change

    2023  Volume 13, Issue 9

    Abstract: The tropical forest carbon sink is known to be drought sensitive, but it is unclear which forests are the most vulnerable to extreme events. Forests with hotter and drier baseline conditions may be protected by prior adaptation, or more vulnerable ... ...

    Abstract The tropical forest carbon sink is known to be drought sensitive, but it is unclear which forests are the most vulnerable to extreme events. Forests with hotter and drier baseline conditions may be protected by prior adaptation, or more vulnerable because they operate closer to physiological limits. Here we report that forests in drier South American climates experienced the greatest impacts of the 2015–2016 El Niño, indicating greater vulnerability to extreme temperatures and drought. The long-term, ground-measured tree-by-tree responses of 123 forest plots across tropical South America show that the biomass carbon sink ceased during the event with carbon balance becoming indistinguishable from zero (−0.02 ± 0.37 Mg C ha−1 per year). However, intact tropical South American forests overall were no more sensitive to the extreme 2015–2016 El Niño than to previous less intense events, remaining a key defence against climate change as long as they are protected.
    Keywords Life Science
    Subject code 333
    Language English
    Publishing country nl
    Document type Article ; Online
    ZDB-ID 2614383-5
    ISSN 1758-6798 ; 1758-678X
    ISSN (online) 1758-6798
    ISSN 1758-678X
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    More links

    Kategorien

To top