Compositional response of Amazon forests to climate change.
Compositional response of Amazon forests to climate change.
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DOI：
10.1111/gcb.14413
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发表时间：
2019-01
影响因子：
11.6
通讯作者：
Phillips OL
中科院分区：
文献类型：
--
作者：
Esquivel-Muelbert A;Baker TR;Dexter KG;Lewis SL;Brienen RJW;Feldpausch TR;Lloyd J;Monteagudo-Mendoza A;Arroyo L;Álvarez-Dávila E;Higuchi N;Marimon BS;Marimon-Junior BH;Silveira M;Vilanova E;Gloor E;Malhi Y;Chave J;Barlow J;Bonal D;Davila Cardozo N;Erwin T;Fauset S;Hérault B;Laurance S;Poorter L;Qie L;Stahl C;Sullivan MJP;Ter Steege H;Vos VA;Zuidema PA;Almeida E;Almeida de Oliveira E;Andrade A;Vieira SA;Aragão L;Araujo-Murakami A;Arets E;Aymard C GA;Baraloto C;Camargo PB;Barroso JG;Bongers F;Boot R;Camargo JL;Castro W;Chama Moscoso V;Comiskey J;Cornejo Valverde F;Lola da Costa AC;Del Aguila Pasquel J;Di Fiore A;Fernanda Duque L;Elias F;Engel J;Flores Llampazo G;Galbraith D;Herrera Fernández R;Honorio Coronado E;Hubau W;Jimenez-Rojas E;Lima AJN;Umetsu RK;Laurance W;Lopez-Gonzalez G;Lovejoy T;Aurelio Melo Cruz O;Morandi PS;Neill D;Núñez Vargas P;Pallqui Camacho NC;Parada Gutierrez A;Pardo G;Peacock J;Peña-Claros M;Peñuela-Mora MC;Petronelli P;Pickavance GC;Pitman N;Prieto A;Quesada C;Ramírez-Angulo H;Réjou-Méchain M;Restrepo Correa Z;Roopsind A;Rudas A;Salomão R;Silva N;Silva Espejo J;Singh J;Stropp J;Terborgh J;Thomas R;Toledo M;Torres-Lezama A;Valenzuela Gamarra L;van de Meer PJ;van der Heijden G;van der Hout P;Vasquez Martinez R;Vela C;Vieira ICG;Phillips OL
地球上的大部分生物多样性集中在热带地区，其中包括许多正在经历快速气候变化的地区。然而，尽管气候引起的生物多样性变化在其他地方得到了广泛的记录，但很少有研究针对低地热带生态系统解决这个问题。在这里，我们调查完整的低地亚马逊森林的植物区系和功能组成是否一直在变化，评估记录从106个长期库存地块跨越30年。我们分析了三个特征，假设响应不同的环境驱动因素（水分胁迫和大气CO2浓度的增加）：最大树的大小，地理水分亏缺的联系和木材密度。树木群落越来越多地被大型生物类群所主导，但迄今为止，尽管大多数森林地块经历了旱季的加剧，但在群落水平上，平均木材密度或水分亏缺关系没有可检测到的变化。然而，在新招募的树木中，干附属属变得更加丰富，而在旱季最严重的那些地块中，湿附属属的死亡率增加了。因此，一个缓慢的向更干燥的亚马逊地区的转变正在进行中，组成动态（新兵和死亡率）的变化与气候变化的驱动因素一致，但尚未对整个社区的组成产生重大影响。亚马逊的观测记录表明，大气中二氧化碳的增加正在推动树木群落向大型物种的转变，迄今为止的气候变化将影响森林的组成，但热带树木的世代时间长意味着生物多样性的变化滞后于气候变化。
Most of the planet's diversity is concentrated in the tropics, which includes many regions undergoing rapid climate change. Yet, while climate‐induced biodiversity changes are widely documented elsewhere, few studies have addressed this issue for lowland tropical ecosystems. Here we investigate whether the floristic and functional composition of intact lowland Amazonian forests have been changing by evaluating records from 106 long‐term inventory plots spanning 30 years. We analyse three traits that have been hypothesized to respond to different environmental drivers (increase in moisture stress and atmospheric CO 2 concentrations): maximum tree size, biogeographic water‐deficit affiliation and wood density. Tree communities have become increasingly dominated by large‐statured taxa, but to date there has been no detectable change in mean wood density or water deficit affiliation at the community level, despite most forest plots having experienced an intensification of the dry season. However, among newly recruited trees, dry‐affiliated genera have become more abundant, while the mortality of wet‐affiliated genera has increased in those plots where the dry season has intensified most. Thus, a slow shift to a more dry‐affiliated Amazonia is underway, with changes in compositional dynamics (recruits and mortality) consistent with climate‐change drivers, but yet to significantly impact whole‐community composition. The Amazon observational record suggests that the increase in atmospheric CO 2 is driving a shift within tree communities to large‐statured species and that climate changes to date will impact forest composition, but long generation times of tropical trees mean that biodiversity change is lagging behind climate change.
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影响因子：
13.6
作者：
Bello C;Galetti M;Pizo MA;Magnago LF;Rocha MF;Lima RA;Peres CA;Ovaskainen O;Jordano P
通讯作者：
Jordano P
影响因子：
4.8
作者：
DAVIS, MB
通讯作者：
DAVIS, MB
影响因子：
30.7
作者：
Devictor, Vincent;van Swaay, Chris;Jiguet, Frederic
通讯作者：
Jiguet, Frederic
影响因子：
30.7
作者：
Boisier, Juan P.;Ciais, Philippe;Guimberteau, Matthieu
通讯作者：
Guimberteau, Matthieu
DOI：
10.1073/pnas.0809320106
发表时间：
2009-02-03
影响因子：
11.1
作者：
Chen, I-Ching;Shiu, Hau-Jie;Thomas, Chris D.
通讯作者：
Thomas, Chris D.