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Article: Nutrient limitation in rainforests and cloud forests along a 3,000-m elevation gradient in the Peruvian Andes

Fisher, Joshua B / Malhi, Yadvinder / Torres, Israel Cuba / Metcalfe, Daniel B / van de Weg, Martine J / Meir, Patrick / Silva-Espejo, Javier E / Huasco, Walter Huaraca

Oecologia. 2013 July, v. 172, no. 3

2013

Abstract: We report results from a large-scale nutrient fertilization experiment along a “megadiverse” (154 unique species were included in the study) 3,000-m elevation transect in the Peruvian Andes and adjacent lowland Amazonia. Our objectives were to test if ... ...

Abstract	We report results from a large-scale nutrient fertilization experiment along a “megadiverse” (154 unique species were included in the study) 3,000-m elevation transect in the Peruvian Andes and adjacent lowland Amazonia. Our objectives were to test if nitrogen (N) and phosphorus (P) limitation shift along this elevation gradient, and to determine how an alleviation of nutrient limitation would manifest in ecosystem changes. Tree height decreased with increasing elevation, but leaf area index (LAI) and diameter at breast height (DBH) did not vary with elevation. Leaf N:P decreased with increasing elevation (from 24 at 200� m to 11 at 3,000� m), suggesting increased N limitation and decreased P limitation with increasing elevation. After 4� years of fertilization (N, P, N� +� P), plots at the lowland site (200� m) fertilized with N� +� P showed greater relative growth rates in DBH than did the control plots; no significant differences were evident at the 1,000� m site, and plots fertilized with N at the highest elevation sites (1,500, 3,000� m) showed greater relative growth rates in DBH than did the control plots, again suggesting increased N constraint with elevation. Across elevations in general N fertilization led to an increase in microbial respiration, while P and N� +� P addition led to an increase in root respiration and corresponding decrease in hyphal respiration. There was no significant canopy response (LAI, leaf nutrients) to fertilization, suggesting that photosynthetic capacity was not N or P limited in these ecosystems. In sum, our study significantly advances ecological understanding of nutrient cycling and ecosystem response in a region where our collective knowledge and data are sparse: we demonstrate N limitation in high elevation tropical montane forests, N and P co-limitation in lowland Amazonia, and a nutrient limitation response manifested not in canopy changes, but rather in stem and belowground changes.
Keywords	biogeochemical cycles ; canopy ; ecosystems ; leaf area index ; leaves ; lowlands ; nitrogen ; nitrogen fertilizers ; nutrients ; phosphorus ; photosynthesis ; rain forests ; roots ; stems ; tree and stand measurements ; trees ; tropical montane cloud forests ; Amazonia ; Andes region
Language	English
Dates of publication	2013-07
Size	p. 889-902.
Publishing place	Springer-Verlag
Document type	Article
ZDB-ID	123369-5
ISSN	1432-1939 ; 0029-8549
ISSN (online)	1432-1939
ISSN	0029-8549
DOI	10.1007/s00442-012-2522-6
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Article ; Online: Solar radiation and functional traits explain the decline of forest primary productivity along a tropical elevation gradient.

Ecology letters

2017 Volume 20, Issue 6, Page(s) 730–740

Abstract: One of the major challenges in ecology is to understand how ecosystems respond to changes in environmental conditions, and how taxonomic and functional diversity mediate these changes. In this study, we use a trait-spectra and individual-based model, to ... ...

Abstract	One of the major challenges in ecology is to understand how ecosystems respond to changes in environmental conditions, and how taxonomic and functional diversity mediate these changes. In this study, we use a trait-spectra and individual-based model, to analyse variation in forest primary productivity along a 3.3 km elevation gradient in the Amazon-Andes. The model accurately predicted the magnitude and trends in forest productivity with elevation, with solar radiation and plant functional traits (leaf dry mass per area, leaf nitrogen and phosphorus concentration, and wood density) collectively accounting for productivity variation. Remarkably, explicit representation of temperature variation with elevation was not required to achieve accurate predictions of forest productivity, as trait variation driven by species turnover appears to capture the effect of temperature. Our semi-mechanistic model suggests that spatial variation in traits can potentially be used to estimate spatial variation in productivity at the landscape scale.
Language	English
Publishing date	2017
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	1441608-6
ISSN	1461-0248 ; 1461-023X
ISSN (online)	1461-0248
ISSN	1461-023X
DOI	10.1111/ele.12771
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Article ; Online: Nutrient limitation in rainforests and cloud forests along a 3,000-m elevation gradient in the Peruvian Andes.

Fisher, Joshua B / Malhi, Yadvinder / Torres, Israel Cuba / Metcalfe, Daniel B / van de Weg, Martine J / Meir, Patrick / Silva-Espejo, Javier E / Huasco, Walter Huaraca

Oecologia

2012 Volume 172, Issue 3, Page(s) 889–902

Abstract: We report results from a large-scale nutrient fertilization experiment along a "megadiverse" (154 unique species were included in the study) 3,000-m elevation transect in the Peruvian Andes and adjacent lowland Amazonia. Our objectives were to test if ... ...

Abstract	We report results from a large-scale nutrient fertilization experiment along a "megadiverse" (154 unique species were included in the study) 3,000-m elevation transect in the Peruvian Andes and adjacent lowland Amazonia. Our objectives were to test if nitrogen (N) and phosphorus (P) limitation shift along this elevation gradient, and to determine how an alleviation of nutrient limitation would manifest in ecosystem changes. Tree height decreased with increasing elevation, but leaf area index (LAI) and diameter at breast height (DBH) did not vary with elevation. Leaf N:P decreased with increasing elevation (from 24 at 200 m to 11 at 3,000 m), suggesting increased N limitation and decreased P limitation with increasing elevation. After 4 years of fertilization (N, P, N + P), plots at the lowland site (200 m) fertilized with N + P showed greater relative growth rates in DBH than did the control plots; no significant differences were evident at the 1,000 m site, and plots fertilized with N at the highest elevation sites (1,500, 3,000 m) showed greater relative growth rates in DBH than did the control plots, again suggesting increased N constraint with elevation. Across elevations in general N fertilization led to an increase in microbial respiration, while P and N + P addition led to an increase in root respiration and corresponding decrease in hyphal respiration. There was no significant canopy response (LAI, leaf nutrients) to fertilization, suggesting that photosynthetic capacity was not N or P limited in these ecosystems. In sum, our study significantly advances ecological understanding of nutrient cycling and ecosystem response in a region where our collective knowledge and data are sparse: we demonstrate N limitation in high elevation tropical montane forests, N and P co-limitation in lowland Amazonia, and a nutrient limitation response manifested not in canopy changes, but rather in stem and belowground changes.
MeSH term(s)	Peru ; Rain ; Trees
Language	English
Publishing date	2012-11-24
Publishing country	Germany
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	123369-5
ISSN	1432-1939 ; 0029-8549
ISSN (online)	1432-1939
ISSN	0029-8549
DOI	10.1007/s00442-012-2522-6
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article: Seasonal production, allocation and cycling of carbon in two mid-elevation tropical montane forest plots in the Peruvian Andes

Plant ecology & diversity. 2014 Apr. 3, v. 7, no. 1-2

2014

Abstract: Background: Tropical montane cloud forests (TMCF) are unique ecosystems with high biodiversity and large carbon reservoirs. To date there have been limited descriptions of the carbon cycle of TMCF. Aims: We present results on the production, allocation ... ...

Abstract	Background: Tropical montane cloud forests (TMCF) are unique ecosystems with high biodiversity and large carbon reservoirs. To date there have been limited descriptions of the carbon cycle of TMCF. Aims: We present results on the production, allocation and cycling of carbon for two mid-elevation (1500–1750 m) tropical montane cloud forest plots in San Pedro, Kosñipata Valley, Peru. Methods: We repeatedly recorded the components of net primary productivity (NPP) using biometric measurements, and autotrophic (R ₐ) and heterotrophic (R ₕ) respiration, using gas exchange measurements. From these we estimated gross primary productivity (GPP) and carbon use efficiency (CUE) at the plot level. Results: The plot at 1500 m was found very productive, with our results comparable with the most productive lowland Amazonian forests. The plot at 1750 m had significantly lower productivity, possibly because of greater cloud immersion. Both plots had similar patterns of NPP allocation, a substantial seasonality in NPP components and little seasonality in R ₐ. Conclusions: These two plots lie within the ecotone between lower and upper montane forests, near the level of the cloud base. Climate change is likely to increase elevation of the cloud base, resulting in shifts in forest functioning. Longer-term surveillance of the carbon cycle at these sites would yield valuable insights into the response of TMCFs to a shifting cloud base.
Keywords	biodiversity ; carbon ; carbon cycle ; climate change ; ecosystems ; ecotones ; gas exchange ; monitoring ; primary productivity ; tropical montane cloud forests ; Andes region ; Peru
Language	English
Dates of publication	2014-0403
Size	p. 125-142.
Publishing place	Taylor & Francis
Document type	Article
ISSN	1755-1668
DOI	10.1080/17550874.2013.819042
Database	NAL-Catalogue (AGRICOLA)

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Article: Productivity and carbon allocation in a tropical montane cloud forest in the Peruvian Andes

Girardin, Cécile A.J / Espejob, Javier E. Silva / Doughty, Christopher E / Huasco, Walter Huaraca / Metcalfe, Dan B / Durand-Baca, Liliana / Marthews, Toby R / Aragao, Luiz E.O.C / Farfán-Rios, William / García-Cabrera, Karina / Halladay, Katherine / Fisher, Joshua B / Galiano-Cabrera, Darcy F / Huaraca-Quispe, Lidia P / Alzamora-Taype, Ivonne / Eguiluz-Mora, Luzmila / -Revilla, Norma Salinas / Silman, Miles R / Meir, Patrick /

Malhi, Yadvinder

Plant ecology & diversity. 2014 Apr. 3, v. 7, no. 1-2

2014

Abstract: Background: The slopes of the eastern Andes harbour some of the highest biodiversity on Earth and a high proportion of endemic species. However, there have been only a few and limited descriptions of carbon budgets in tropical montane forest regions. ... ...

Abstract	Background: The slopes of the eastern Andes harbour some of the highest biodiversity on Earth and a high proportion of endemic species. However, there have been only a few and limited descriptions of carbon budgets in tropical montane forest regions. Aims: We present the first comprehensive data on the production, allocation and cycling of carbon for two high elevation (ca. 3000 m) tropical montane cloud forest plots in the Kosñipata Valley, Peruvian Andes. Methods: We measured the main components and seasonal variation of net primary productivity (NPP), autotrophic (R ₐ) and heterotrophic (R ₕ) respiration to estimate gross primary productivity (GPP) and carbon use efficiency (CUE) in two 1-ha plots. Results: NPP for the two plots was estimated to be 7.05 ± 0.39 and 8.04 ± 0.47 Mg C ha ⁻¹ year ⁻¹, GPP to be 22.33 ± 2.23 and 26.82 ± 2.97 Mg C ha ⁻¹ year ⁻¹ and CUE was 0.32 ± 0.04 and 0.30 ± 0.04. Conclusions: We found strong seasonality in NPP and moderate seasonality of R ₐ, suggesting that forest NPP is driven by changes in photosynthesis and highlighting the importance of variation in solar radiation. Our findings imply that trees invest more in biomass production in the cooler season with lower solar radiation and more in maintenance during the warmer and high solar radiation period.
Keywords	biodiversity ; biomass production ; carbon ; indigenous species ; photosynthesis ; primary productivity ; seasonal variation ; solar radiation ; trees ; tropical montane cloud forests ; Andes region
Language	English
Dates of publication	2014-0403
Size	p. 107-123.
Publishing place	Taylor & Francis
Document type	Article
ISSN	1755-1668
DOI	10.1080/17550874.2013.820222
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Article: Herbivory makes major contributions to ecosystem carbon and nutrient cycling in tropical forests

Metcalfe, Daniel B / Asner, Gregory P / Martin, Roberta E / Silva Espejo, Javier E / Huasco, Walter Huaraca / Farfán Amézquita, Felix F / Carranza‐Jimenez, Loreli / Galiano Cabrera, Darcy F / Baca, Liliana Durand / Sinca, Felipe / Huaraca Quispe, Lidia P / Taype, Ivonne Alzamora / Mora, Luzmila Eguiluz / Dávila, Angela Rozas / Solórzano, Marlene Mamani / Puma Vilca, Beisit L / Laupa Román, Judith M / Guerra Bustios, Patricia C / Revilla, Norma Salinas /

Tupayachi, Raul / Girardin, Cécile A. J / Doughty, Christopher E / Malhi, Yadvinder / Putten, Wim

Ecology letters. 2014 Mar., v. 17, no. 3

2014

Abstract: The functional role of herbivores in tropical rainforests remains poorly understood. We quantified the magnitude of, and underlying controls on, carbon, nitrogen and phosphorus cycled by invertebrate herbivory along a 2800� m elevational gradient in the ... ...

Abstract	The functional role of herbivores in tropical rainforests remains poorly understood. We quantified the magnitude of, and underlying controls on, carbon, nitrogen and phosphorus cycled by invertebrate herbivory along a 2800� m elevational gradient in the tropical Andes spanning 12°C mean annual temperature. We find, firstly, that leaf area loss is greater at warmer sites with lower foliar phosphorus, and secondly, that the estimated herbivore‐mediated flux of foliar nitrogen and phosphorus from plants to soil via leaf area loss is similar to, or greater than, other major sources of these nutrients in tropical forests. Finally, we estimate that herbivores consume a significant portion of plant carbon, potentially causing major shifts in the pattern of plant and soil carbon cycling. We conclude that future shifts in herbivore abundance and activity as a result of environmental change could have major impacts on soil fertility and ecosystem carbon sequestration in tropical forests.
Keywords	carbon ; carbon sequestration ; ecosystems ; herbivores ; leaf area ; nitrogen ; nutrients ; phosphorus ; soil ; soil fertility ; temperature ; tropical rain forests ; Andes region
Language	English
Dates of publication	2014-03
Size	p. 324-332.
Document type	Article
Note	LETTER
ZDB-ID	1441608-6
ISSN	1461-0248 ; 1461-023X
ISSN (online)	1461-0248
ISSN	1461-023X
DOI	10.1111/ele.12233
Database	NAL-Catalogue (AGRICOLA)

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Article ; Online: ENSO Drives interannual variation of forest woody growth across the tropics.

Rifai, Sami W / Girardin, Cécile A J / Berenguer, Erika / Del Aguila-Pasquel, Jhon / Dahlsjö, Cecilia A L / Doughty, Christopher E / Jeffery, Kathryn J / Moore, Sam / Oliveras, Imma / Riutta, Terhi / Rowland, Lucy M / Murakami, Alejandro Araujo / Addo-Danso, Shalom D / Brando, Paulo / Burton, Chad / Ondo, Fidèle Evouna / Duah-Gyamfi, Akwasi / Amézquita, Filio Farfán / Freitag, Renata /

Philosophical transactions of the Royal Society of London. Series B, Biological sciences

2018 Volume 373, Issue 1760

Abstract: Meteorological extreme events such as El Niño events are expected to affect tropical forest net primary production (NPP) and woody growth, but there has been no large-scale empirical validation of this expectation. We collected a large high-temporal ... ...

Abstract	Meteorological extreme events such as El Niño events are expected to affect tropical forest net primary production (NPP) and woody growth, but there has been no large-scale empirical validation of this expectation. We collected a large high-temporal resolution dataset (for 1-13 years depending upon location) of more than 172 000 stem growth measurements using dendrometer bands from across 14 regions spanning Amazonia, Africa and Borneo in order to test how much month-to-month variation in stand-level woody growth of adult tree stems (NPP
MeSH term(s)	Africa ; Borneo ; Brazil ; Droughts ; El Nino-Southern Oscillation ; Forests ; Seasons ; Trees/growth & development ; Tropical Climate
Language	English
Publishing date	2018-10-08
Publishing country	England
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	208382-6
ISSN	1471-2970 ; 0080-4622 ; 0264-3839 ; 0962-8436
ISSN (online)	1471-2970
ISSN	0080-4622 ; 0264-3839 ; 0962-8436
DOI	10.1098/rstb.2017.0410
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Article: Water table depth modulates productivity and biomass across Amazonian forests

Sousa, Thaiane R. / Schietti, Juliana / Ribeiro, Igor O. / Emílio, Thaise / Fernández, Rafael Herrera / ter Steege, Hans / Castilho, Carolina V. / Esquivel‐Muelbert, Adriane / Baker, Timothy / Pontes‐Lopes, Aline / Silva, Camila V. J. / Silveira, Juliana M. / Derroire, Géraldine / Castro, Wendeson / Mendoza, Abel Monteagudo / Ruschel, Ademir / Prieto, Adriana / Lima, Adriano José Nogueira / Rudas, Agustín /

Araujo‐Murakami, Alejandro / Gutierrez, Alexander Parada / Andrade, Ana / Roopsind, Anand / Manzatto, Angelo Gilberto / Di Fiore, Anthony / Torres‐Lezama, Armando / Dourdain, Aurélie / Marimon, Beatriz / Marimon, Ben Hur / Burban, Benoit / van Ulft, Bert / Herault, Bruno / Quesada, Carlos / Mendoza, Casimiro / Stahl, Clement / Bonal, Damien / Galbraith, David / Neill, David / de Oliveira, Edmar A. / Hase, Eduardo / Jimenez‐Rojas, Eliana / Vilanova, Emilio / Arets, Eric / Berenguer, Erika / Alvarez‐Davila, Esteban / Honorio Coronado, Eurídice N. / Almeida, Everton / Coelho, Fernanda / Valverde, Fernando Cornejo / Elias, Fernando / Brown, Foster / Bongers, Frans / Arevalo, Freddy Ramirez / Lopez‐Gonzalez, Gabriela / van der Heijden, Geertje / Aymard C., Gerardo A. / Llampazo, Gerardo Flores / Pardo, Guido / Ramírez‐Angulo, Hirma / do Amaral, Iêda Leão / Vieira, Ima Célia Guimarães / Huamantupa‐Chuquimaco, Isau / Comiskey, James A. / Singh, James / Espejo, Javier Silva / del Aguila‐Pasquel, Jhon / Zwerts, Joeri Alexander / Talbot, Joey / Terborgh, John / Ferreira, Joice / Barroso, Jorcely G. / Barlow, Jos / Camargo, José Luís / Stropp, Juliana / Peacock, Julie / Serrano, Julio / Melgaço, Karina / Ferreira, Leandro V. / Blanc, Lilian / Poorter, Lourens / Gamarra, Luis Valenzuela / Aragão, Luiz / Arroyo, Luzmila / Silveira, Marcos / Peñuela‐Mora, Maria Cristina / Vargas, Mario Percy Núñez / Toledo, Marisol / Disney, Mat / Réjou‐Méchain, Maxime / Baisie, Michel / Kalamandeen, Michelle / Camacho, Nadir Pallqui / Cardozo, Nállarett Dávila / Silva, Natalino / Pitman, Nigel / Higuchi, Niro / Banki, Olaf / Loayza, Patricia Alvarez / Graça, Paulo M. L. A. / Morandi, Paulo S. / van der Meer, Peter J. / van der Hout, Peter / Naisso, Pétrus / Camargo, Plínio Barbosa / Salomão, Rafael / Thomas, Raquel / Boot, Rene / Umetsu, Ricardo Keichi / da Costa Silva, Richarlly / Burnham, Robyn / Zagt, Roderick / Martinez, Rodolfo Vasquez / Brienen, Roel / Ribeiro, Sabina Cerruto / Lewis, Simon L. / Vieira, Simone Aparecida / de Almeida Reis, Simone Matias / Fauset, Sophie / Laurance, Susan / Feldpausch, Ted / Erwin, Terry / Killeen, Timothy / Wortel, Verginia / Moscoso, Victor Chama / Vos, Vincent / Huasco, Walter Huaraca / Laurance, William / Malhi, Yadvinder / Magnusson, William E. / Phillips, Oliver L. / Costa, Flávia R. C.

Global ecology and biogeography. 2022 Aug., v. 31, no. 8

2022

Abstract: AIM: Water availability is the major driver of tropical forest structure and dynamics. Most research has focused on the impacts of climatic water availability, whereas remarkably little is known about the influence of water table depth and excess soil ... ...

Abstract	AIM: Water availability is the major driver of tropical forest structure and dynamics. Most research has focused on the impacts of climatic water availability, whereas remarkably little is known about the influence of water table depth and excess soil water on forest processes. Nevertheless, given that plants take up water from the soil, the impacts of climatic water supply on plants are likely to be modulated by soil water conditions. LOCATION: Lowland Amazonian forests. TIME PERIOD: 1971–2019. METHODS: We used 344 long‐term inventory plots distributed across Amazonia to analyse the effects of long‐term climatic and edaphic water supply on forest functioning. We modelled forest structure and dynamics as a function of climatic, soil‐water and edaphic properties. RESULTS: Water supplied by both precipitation and groundwater affects forest structure and dynamics, but in different ways. Forests with a shallow water table (depth <5 m) had 18% less above‐ground woody productivity and 23% less biomass stock than forests with a deep water table. Forests in drier climates (maximum cumulative water deficit < −160 mm) had 21% less productivity and 24% less biomass than those in wetter climates. Productivity was affected by the interaction between climatic water deficit and water table depth. On average, in drier climates the forests with a shallow water table had lower productivity than those with a deep water table, with this difference decreasing within wet climates, where lower productivity was confined to a very shallow water table. MAIN CONCLUSIONS: We show that the two extremes of water availability (excess and deficit) both reduce productivity in Amazon upland (terra‐firme) forests. Biomass and productivity across Amazonia respond not simply to regional climate, but rather to its interaction with water table conditions, exhibiting high local differentiation. Our study disentangles the relative contribution of those factors, helping to improve understanding of the functioning of tropical ecosystems and how they are likely to respond to climate change.
Keywords	biogeography ; biomass ; climate ; climate change ; groundwater ; highlands ; inventories ; soil water ; tropical forests ; water supply ; water table ; Amazonia
Language	English
Dates of publication	2022-08
Size	p. 1571-1588.
Publishing place	John Wiley & Sons, Ltd
Document type	Article
Note	JOURNAL ARTICLE
ZDB-ID	2021283-5
ISSN	1466-8238 ; 1466-822X ; 0960-7447
ISSN (online)	1466-8238
ISSN	1466-822X ; 0960-7447
DOI	10.1111/geb.13531
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Article ; Online: Herbivory makes major contributions to ecosystem carbon and nutrient cycling in tropical forests.

Metcalfe, Daniel B / Asner, Gregory P / Martin, Roberta E / Silva Espejo, Javier E / Huasco, Walter Huaraca / Farfán Amézquita, Felix F / Carranza-Jimenez, Loreli / Galiano Cabrera, Darcy F / Baca, Liliana Durand / Sinca, Felipe / Huaraca Quispe, Lidia P / Taype, Ivonne Alzamora / Mora, Luzmila Eguiluz / Dávila, Angela Rozas / Solórzano, Marlene Mamani / Puma Vilca, Beisit L / Laupa Román, Judith M / Guerra Bustios, Patricia C / Revilla, Norma Salinas /

Tupayachi, Raul / Girardin, Cécile A J / Doughty, Christopher E / Malhi, Yadvinder

Ecology letters

2014 Volume 17, Issue 3, Page(s) 324–332

Abstract	The functional role of herbivores in tropical rainforests remains poorly understood. We quantified the magnitude of, and underlying controls on, carbon, nitrogen and phosphorus cycled by invertebrate herbivory along a 2800 m elevational gradient in the tropical Andes spanning 12°C mean annual temperature. We find, firstly, that leaf area loss is greater at warmer sites with lower foliar phosphorus, and secondly, that the estimated herbivore-mediated flux of foliar nitrogen and phosphorus from plants to soil via leaf area loss is similar to, or greater than, other major sources of these nutrients in tropical forests. Finally, we estimate that herbivores consume a significant portion of plant carbon, potentially causing major shifts in the pattern of plant and soil carbon cycling. We conclude that future shifts in herbivore abundance and activity as a result of environmental change could have major impacts on soil fertility and ecosystem carbon sequestration in tropical forests.
MeSH term(s)	Animals ; Carbon Cycle/physiology ; Ecosystem ; Food ; Herbivory/physiology ; Models, Biological ; Peru ; Plant Leaves/chemistry ; Spectrum Analysis ; Trees ; Tropical Climate
Language	English
Publishing date	2014-03
Publishing country	England
Document type	Letter ; Research Support, Non-U.S. Gov't
ZDB-ID	1441608-6
ISSN	1461-0248 ; 1461-023X
ISSN (online)	1461-0248
ISSN	1461-023X
DOI	10.1111/ele.12233
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: Water table depth modulates productivity and biomass across Amazonian forests

Sousa, Thaiane R. / Schietti, Juliana / Ribeiro, Igor O. / Emílio, Thaise / Fernández, Rafael Herrera / ter Steege, Hans / Castilho, Carolina V. / Esquivel-Muelbert, Adriane / Baker, Timothy / Pontes-Lopes, Aline / Silva, Camila V.J. / Silveira, Juliana M. / Derroire, Géraldine / Castro, Wendeson / Mendoza, Abel Monteagudo / Ruschel, Ademir / Prieto, Adriana / Lima, Adriano José Nogueira / Rudas, Agustín /

Araujo-Murakami, Alejandro / Gutierrez, Alexander Parada / Andrade, Ana / Roopsind, Anand / Manzatto, Angelo Gilberto / Di Fiore, Anthony / Torres-Lezama, Armando / Dourdain, Aurélie / Marimon, Beatriz / Marimon, Ben Hur / Burban, Benoit / van Ulft, Bert / Herault, Bruno / Quesada, Carlos / Mendoza, Casimiro / Stahl, Clement / Bonal, Damien / Galbraith, David / Neill, David / de Oliveira, Edmar A. / Hase, Eduardo / Jimenez-Rojas, Eliana / Vilanova, Emilio / Arets, Eric / Berenguer, Erika / Alvarez-Davila, Esteban / Honorio Coronado, Eurídice N. / Almeida, Everton / Coelho, Fernanda / Valverde, Fernando Cornejo / Elias, Fernando / Brown, Foster / Bongers, Frans / Arevalo, Freddy Ramirez / Lopez-Gonzalez, Gabriela / van der Heijden, Geertje / Aymard C., Gerardo A. / Llampazo, Gerardo Flores / Pardo, Guido / Ramírez-Angulo, Hirma / do Amaral, Iêda Leão / Vieira, Ima Célia Guimarães / Huamantupa-Chuquimaco, Isau / Comiskey, James A. / Singh, James / Espejo, Javier Silva / del Aguila-Pasquel, Jhon / Zwerts, Joeri Alexander / Talbot, Joey / Terborgh, John / Ferreira, Joice / Barroso, Jorcely G. / Barlow, Jos / Camargo, José Luís / Stropp, Juliana / Peacock, Julie / Serrano, Julio / Melgaço, Karina / Ferreira, Leandro V. / Blanc, Lilian / Poorter, Lourens / Gamarra, Luis Valenzuela / Aragão, Luiz / Arroyo, Luzmila / Silveira, Marcos / Peñuela-Mora, Maria Cristina / Vargas, Mario Percy Núñez / Toledo, Marisol / Disney, Mat / Réjou-Méchain, Maxime / Baisie, Michel / Kalamandeen, Michelle / Camacho, Nadir Pallqui / Cardozo, Nállarett Dávila / Silva, Natalino / Pitman, Nigel / Higuchi, Niro / Banki, Olaf / Loayza, Patricia Alvarez / Graça, Paulo M.L.A. / Morandi, Paulo S. / van der Meer, Peter J. / van der Hout, Peter / Naisso, Pétrus / Camargo, Plínio Barbosa / Salomão, Rafael / Thomas, Raquel / Boot, Rene / Umetsu, Ricardo Keichi / da Costa Silva, Richarlly / Burnham, Robyn / Zagt, Roderick / Martinez, Rodolfo Vasquez / Brienen, Roel / Ribeiro, Sabina Cerruto / Lewis, Simon L. / Vieira, Simone Aparecida / de Almeida Reis, Simone Matias / Fauset, Sophie / Laurance, Susan / Feldpausch, Ted / Erwin, Terry / Killeen, Timothy / Wortel, Verginia / Moscoso, Victor Chama / Vos, Vincent / Huasco, Walter Huaraca / Laurance, William / Malhi, Yadvinder / Magnusson, William E. / Phillips, Oliver L. / Costa, Flávia R.C.

Global Ecology and Biogeography

2022 Volume 31, Issue 8

Abstract: Aim: Water availability is the major driver of tropical forest structure and dynamics. Most research has focused on the impacts of climatic water availability, whereas remarkably little is known about the influence of water table depth and excess soil ... ...

Abstract	Aim: Water availability is the major driver of tropical forest structure and dynamics. Most research has focused on the impacts of climatic water availability, whereas remarkably little is known about the influence of water table depth and excess soil water on forest processes. Nevertheless, given that plants take up water from the soil, the impacts of climatic water supply on plants are likely to be modulated by soil water conditions. Location: Lowland Amazonian forests. Time period: 1971–2019. Methods: We used 344 long-term inventory plots distributed across Amazonia to analyse the effects of long-term climatic and edaphic water supply on forest functioning. We modelled forest structure and dynamics as a function of climatic, soil-water and edaphic properties. Results: Water supplied by both precipitation and groundwater affects forest structure and dynamics, but in different ways. Forests with a shallow water table (depth <5 m) had 18% less above-ground woody productivity and 23% less biomass stock than forests with a deep water table. Forests in drier climates (maximum cumulative water deficit < −160 mm) had 21% less productivity and 24% less biomass than those in wetter climates. Productivity was affected by the interaction between climatic water deficit and water table depth. On average, in drier climates the forests with a shallow water table had lower productivity than those with a deep water table, with this difference decreasing within wet climates, where lower productivity was confined to a very shallow water table. Main conclusions: We show that the two extremes of water availability (excess and deficit) both reduce productivity in Amazon upland (terra-firme) forests. Biomass and productivity across Amazonia respond not simply to regional climate, but rather to its interaction with water table conditions, exhibiting high local differentiation. Our study disentangles the relative contribution of those factors, helping to improve understanding of the functioning of tropical ecosystems and how ...
Keywords	above-ground biomass ; carbon ; forest dynamics ; groundwater ; seasonality ; tropical ecology
Language	English
Publishing country	nl
Document type	Article ; Online
ZDB-ID	2021283-5
ISSN	1466-8238 ; 1466-822X ; 0960-7447
ISSN (online)	1466-8238
ISSN	1466-822X ; 0960-7447
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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