Increased mortality of tropical tree seedlings during the extreme 2015–16 El Niño
Increased mortality of tropical tree seedlings during the extreme 2015–16 El Niño
复制标题
2015-16 年极端厄尔尼诺现象期间热带树苗死亡率增加
DOI：
10.1111/gcb.15809
复制
发表时间：
2021
影响因子：
11.6
通讯作者：
Comita, Liza S.
中科院分区：
文献类型：
--
作者：
Browne, Luke;Markesteijn, Lars;Engelbrecht, Bettina M. J.;Jones, F. Andrew;Lewis, Owen T.;Manzané‐Pinzón, Eric;Wright, S. Joseph;Comita, Liza S.
由于全球气候变化，预计极端气候事件将变得更加频繁，因此了解其对自然系统的影响至关重要。热带森林易受与极端厄尔尼诺现象有关的干旱的影响。然而，人们对热带幼苗群落如何应对与厄尔尼诺有关的干旱知之甚少，尽管幼苗存活的模式决定了未来的森林结构和多样性。使用来自巴拿马中部降雨梯度的8个热带潮湿森林的长期数据，我们发现，在2015-16年极端厄尔尼诺期间，全群落幼苗死亡率增加了11%，其中死亡率增加最多的是干旱敏感物种和潮湿的森林。这些结果表明，与厄尔尼诺现象有关的严重干旱影响热带森林的林下动态，其影响在不同地点内和不同地点之间各不相同。我们的研究结果表明，极端厄尔尼诺事件频率的预测增加将通过对早期生命阶段的影响改变热带植物群落。
As extreme climate events are predicted to become more frequent because of global climate change, understanding their impacts on natural systems is crucial. Tropical forests are vulnerable to droughts associated with extreme El Niño events. However, little is known about how tropical seedling communities respond to El Niño–related droughts, even though patterns of seedling survival shape future forest structure and diversity. Using long‐term data from eight tropical moist forests spanning a rainfall gradient in central Panama, we show that community‐wide seedling mortality increased by 11% during the extreme 2015–16 El Niño, with mortality increasing most in drought‐sensitive species and in wetter forests. These results indicate that severe El Niño–related droughts influence understory dynamics in tropical forests, with effects varying both within and across sites. Our findings suggest that predicted increases in the frequency of extreme El Niño events will alter tropical plant communities through their effects on early life stages.
登录
查看更多内容
影响因子：
11.6
作者：
J. Powers;German Vargas-G;T. Brodribb;N. Schwartz;Daniel Pérez‐Aviles;Chris M. Smith‐Martin;J. Becknell;F. Aureli;R. Blanco;Erick Calderón-Morales;J. Calvo-Alvarado;A. Calvo-Obando;María Marta Chavarría;Dorian Carvajal-Vanegas;César Dionisio Jiménez-Rodríguez;Evin Murillo Chacon;C. Schaffner;Leland K. Werden;Xiangtao Xu;D. Medvigy
通讯作者：
J. Powers;German Vargas-G;T. Brodribb;N. Schwartz;Daniel Pérez‐Aviles;Chris M. Smith‐Martin;J. Becknell;F. Aureli;R. Blanco;Erick Calderón-Morales;J. Calvo-Alvarado;A. Calvo-Obando;María Marta Chavarría;Dorian Carvajal-Vanegas;César Dionisio Jiménez-Rodríguez;Evin Murillo Chacon;C. Schaffner;Leland K. Werden;Xiangtao Xu;D. Medvigy
影响因子：
1.4
作者：
Bettina M. J. Engelbrecht;S. Wright;D. Steven
通讯作者：
Bettina M. J. Engelbrecht;S. Wright;D. Steven
影响因子：
5.5
作者：
M. Umaña;R. Condit;R. Condit;Rolando Pẽrez;Benjamin L Turner;S. Wright;L. Comita;L. Comita
通讯作者：
M. Umaña;R. Condit;R. Condit;Rolando Pẽrez;Benjamin L Turner;S. Wright;L. Comita;L. Comita
评估全球季节性干旱热带森林的恢复力
影响因子：
5.5
作者：
S. Pulla;S. Pulla;G. Ramaswami;G. Ramaswami;N. Mondal;N. Mondal;R. Chitra;R. Chitra;H. S. Suresh;H. S. Suresh;H. Dattaraja;H. Dattaraja;P. Vivek;P. Vivek;N. Parthasarathy;N. Parthasarathy;B. R. Ramesh;B. R. Ramesh;Raman Sukumar;Raman Sukumar
通讯作者：
Raman Sukumar
干旱引起的干旱区边缘树木大面积死亡表明，气候压力超过了物种的补偿机制
影响因子：
11.6
作者：
Anderegg, William R. L.;Anderegg, Leander D. L.;Trugman, Anna T.
通讯作者：
Trugman, Anna T.