Zobrazeno 1 - 10
of 145
pro vyhledávání: '"Jeffrey Q Chambers"'
Autor:
Robinson Negron-Juarez, Michael Wehner, Maria Assunção F Silva Dias, Paul Ullrich, Jeffrey Q Chambers, William J Riley
Publikováno v:
Environmental Research Communications, Vol 6, Iss 9, p 091001 (2024)
Extreme rainfall events drive the amount and spatial distribution of rainfall in the Amazon and are a key driver of forest dynamics across the basin. This study investigates how the 3-hourly predictions in the High Resolution Model Intercomparison Pr
Externí odkaz:
https://doaj.org/article/8cbc6993257a42ee9c8aaf27e900f86d
Autor:
Robinson Negron-Juarez, Daniel Magnabosco-Marra, Yanlei Feng, Jose David Urquiza-Muñoz, William J Riley, Jeffrey Q Chambers
Publikováno v:
Environmental Research Letters, Vol 18, Iss 1, p 014030 (2023)
Windthrows (trees uprooted and broken by winds) are common across the Amazon. They range in size from single trees to large gaps that lead to changes in forest dynamics, composition, structure, and carbon balance. Yet, the current understanding of th
Externí odkaz:
https://doaj.org/article/323d330349914e56934bf4ab9067d03a
Autor:
Raquel Fernandes Araujo, Jeffrey Q Chambers, Carlos Henrique Souza Celes, Helene C Muller-Landau, Ana Paula Ferreira Dos Santos, Fabiano Emmert, Gabriel H P M Ribeiro, Bruno Oliva Gimenez, Adriano J N Lima, Moacir A A Campos, Niro Higuchi
Publikováno v:
PLoS ONE, Vol 15, Iss 12, p e0243079 (2020)
Tree growth and survival differ strongly between canopy trees (those directly exposed to overhead light), and understory trees. However, the structural complexity of many tropical forests makes it difficult to determine canopy positions. The integrat
Externí odkaz:
https://doaj.org/article/479d1f403d124cebbb6bd22ba709b185
Autor:
Robinson I Negrón-Juárez, Jennifer A Holm, Daniel Magnabosco Marra, Sami W Rifai, William J Riley, Jeffrey Q Chambers, Charles D Koven, Ryan G Knox, Megan E McGroddy, Alan V Di Vittorio, Jose Urquiza-Muñoz, Rodil Tello-Espinoza, Waldemar Alegria Muñoz, Gabriel H P M Ribeiro, Niro Higuchi
Publikováno v:
Environmental Research Letters, Vol 13, Iss 5, p 054021 (2018)
Tree mortality is a key driver of forest community composition and carbon dynamics. Strong winds associated with severe convective storms are dominant natural drivers of tree mortality in the Amazon. Why forests vary with respect to their vulnerabili
Externí odkaz:
https://doaj.org/article/e6060018783d4c85ad333140eb37ab21
Autor:
Daniel Magnabosco Marra, Jeffrey Q Chambers, Niro Higuchi, Susan E Trumbore, Gabriel H P M Ribeiro, Joaquim Dos Santos, Robinson I Negrón-Juárez, Björn Reu, Christian Wirth
Publikováno v:
PLoS ONE, Vol 9, Iss 8, p e103711 (2014)
Canopy gaps created by wind-throw events, or blowdowns, create a complex mosaic of forest patches varying in disturbance intensity and recovery in the Central Amazon. Using field and remote sensing data, we investigated the short-term (four-year) eff
Externí odkaz:
https://doaj.org/article/cd0aa0fe66b04b8b8efd5c9e8fa8365b
Publikováno v:
Environmental Research Letters, Vol 10, Iss 6, p 064017 (2015)
A significant fraction of anthropogenic CO _2 emissions is assimilated by tropical forests and stored as biomass, slowing the accumulation of CO _2 in the atmosphere. Because different plant tissues have different functional roles and turnover times,
Externí odkaz:
https://doaj.org/article/e879510d7d1f451c9fa9bbb4455f5a2b
Publikováno v:
Environmental Research Letters, Vol 9, Iss 3, p 034010 (2014)
Debate continues over the adequacy of existing field plots to sufficiently capture Amazon forest dynamics to estimate regional forest carbon balance. Tree mortality dynamics are particularly uncertain due to the difficulty of observing large, infrequ
Externí odkaz:
https://doaj.org/article/04d46c98752b4deeb5103f05fd3671a4
Autor:
Gustavo C. Spanner, Bruno O. Gimenez, Cynthia L. Wright, Valdiek Silva Menezes, Brent D. Newman, Adam D. Collins, Kolby J. Jardine, Robinson I. Negrón-Juárez, Adriano José Nogueira Lima, Jardel Ramos Rodrigues, Jeffrey Q. Chambers, Niro Higuchi, Jeffrey M. Warren
Publikováno v:
Frontiers in Plant Science, Vol 13 (2022)
With current observations and future projections of more intense and frequent droughts in the tropics, understanding the impact that extensive dry periods may have on tree and ecosystem-level transpiration and concurrent carbon uptake has become incr
Externí odkaz:
https://doaj.org/article/b3aea3d1e6b144acbbce1cc20362ea69
Autor:
Kolby J. Jardine, Leticia O. Cobello, Liliane M. Teixeira, Malyia-Mason S. East, Sienna Levine, Bruno O. Gimenez, Emily Robles, Gustavo Spanner, Charlie Koven, Chongang Xu, Jeffrey M. Warren, Niro Higuchi, Nate McDowell, Gilberto Pastorello, Jeffrey Q. Chambers
Publikováno v:
Trees, vol 36, iss 3
Key message: Annual stem CO2 efflux increases with stem wood production rates and are inhibited by daily moisture stress. Abstract: Tropical forests cycle a large amount of CO2 between the land and atmosphere, with a substantial portion of the return
Autor:
Daisy C. Souza, Michael J. Liddell, Lucas A. Cernusak, Charlotte Grossiord, Jeffrey Q. Chambers, Kolby J. Jardine, Tayana B. Rodrigues, Susan G. Laurance, Wenzhi Wang, Weibin Li, Riley T Leff, Nate G. McDowell, Israel De Jesus Sampaio Filho, Timothy J. Brodribb, Heather Pacheco, D. Scott Mackay, Yoko Ishida, Alexandria L. Pivovaroff, Peipei Zhang, Jennifer M. R. Peters, Brendan Choat
Publikováno v:
Global change biology, vol 27, iss 24
Increasing severity and frequency of drought is predicted for large portions of the terrestrial biosphere, with major impacts already documented in wet tropical forests. Using a 4-year rainfall exclusion experiment in the Daintree Rainforest in north