Results 51 to 60 of about 3,736 (169)

Spatial trends in leaf size of Amazonian rainforest trees [PDF]

Biogeosciences, 2009
Leaf size influences many aspects of tree function such as rates of transpiration and photosynthesis and, consequently, often varies in a predictable way in response to environmental gradients.
A. C. M. Malhado, Y. Malhi, R. J. Whittaker, R. J. Ladle, H. ter Steege, O. L. Phillips, N. Butt, L. E. O. C. Aragão, C. A. Quesada, A. Araujo-Murakami, L. Arroyo, J. Peacock, G. Lopez-Gonzalez, T. R. Baker, L. O. Anderson, S. Almeida, N. Higuchi, T. J. Killeen, A. Monteagudo, D. Neill, N. Pitman, A. Prieto, R. P. Salomão, R. Vásquez-Martínez, W. F. Laurance   +24 more
doaj  

Relação entre diferentes espécies de formigas e a mirmecófita Cordia nodosa Lamarck (Boraginaceae) em áreas de mata ripária na Amazônia mato-grossense Relationship among different plant-ants and its myrmecophite host Cordia nodosa Lamarck (Boraginaceae) in a riparian Mato Grosso Amazonian forest

Acta Amazonica, 2011
Os benefícios obtidos por um organismo em uma associação mutualística podem variar em função de fatores ambientais, bem como entre as diferentes espécies que podem estar associadas.
Thiago Junqueira Izzo, Adarilda Peneti-Benelli   +1 more
doaj   +1 more source

Molecular phylogeny and historical biogeography of the neotropical swarm-founding social wasp genus Synoeca (Hymenoptera: Vespidae). [PDF]

PLoS ONE, 2015
The Neotropical Region harbors high biodiversity and many studies on mammals, reptiles, amphibians and avifauna have investigated the causes for this pattern. However, there is a paucity of such studies that focus on Neotropical insect groups. Synoeca de
Rodolpho Santos Telles Menezes, Seán Gary Brady, Antônio Freire Carvalho, Marco Antonio Del Lama, Marco Antônio Costa   +4 more
doaj   +1 more source

A Generic Approach to Creating a National Soil Security Strategy

Sustainable Development, EarlyView.
ABSTRACT Soil is a living and non‐renewable resource that underpins our very existence. It produces our food, filters our water, stores vast amounts of carbon, cycles essential nutrients, and sustains the rich tapestry of biodiversity on which our planet depends.
Alex McBratney, Pasquale Borrelli, Sandra J. Evangelista, Julia Feeth, Damien Field, Nicolas Francos, Irene Heuser, Anilkumar Hunakunti, Daniel Irving, Thilini Jayasekara, Bruce Lascelles, Fatima Maria de Souza Moreira, Budiman Minasny, Cristine L. S. Morgan, Wartini Ng, Julio C. Pachón Maldonado, Mercedes Román Dobarco, Amin Sharififar, Quentin Styc, Mara Thiene, David Watt, Jae E. Yang   +21 more
wiley   +1 more source

Evolution of Philodendron (Araceae) species in Neotropical biomes [PDF]

PeerJ, 2016
Philodendron is the second most diverse genus of the Araceae, a tropical monocot family with significant morphological diversity along its wide geographic distribution in the Neotropics.
Leticia Loss-Oliveira, Cassia Sakuragui, Maria de Lourdes Soares, Carlos G. Schrago   +3 more
doaj   +2 more sources

Ecotoxicological Assessment of Mercury in Fish From a Gold‐Mining‐Impacted Amazonian River: Biomonitoring and Human Health Risk

Environmental Toxicology, EarlyView.
ABSTRACT The Peixoto de Azevedo River, located in northern Mato Grosso, southern Brazilian Amazon, has a long history of artisanal and small‐scale gold mining (ASGM). This study evaluated total mercury (THg) concentrations in fish tissues to assess biomagnification and potential risks.
Augusto Cesar da Costa Castilho, Kleber Solera, Vinícius José Santos Lopes, Gleyce Alves Machado, Ricardo Lopes Tortorela de Andrade, Leandro Dênis Battirola   +5 more
wiley   +1 more source

Jaguar Densities and Land Cover Change in a Multi‐Use Landscape: A 10‐Year Comparison in the Colombian Llanos 美洲豹种群密度与复合用地景观下的土地覆被变化:哥伦比亚亚诺斯地区10年比较研究

Wildlife Letters, EarlyView.
We used spatially explicit capture‐recapture to estimate jaguar densities in a private reserve in the Colombian Llanos and quantified land cover change in and around the reserve from 2014 to 2024. Densities increased 22% since 2014, while disturbed land cover increased by 39%–54% around the reserve depending on buffer distance. Our study indicates that
Valeria Boron, Elizabeth Ruiz Elejalde, Cesar Rojano, Jorge Barragan, Angelica Diaz‐Pulido, Laura Miranda, Santiago Chiquito, Matthew Hyde   +7 more
wiley   +1 more source

Pollen-based biome reconstructions for Latin America at 0, 6000 and 18 000 radiocarbon years ago [PDF]

Climate of the Past, 2009
The biomisation method is used to reconstruct Latin American vegetation at 6000±500 and 18 000±1000 radiocarbon years before present (¹⁴C yr BP) from pollen data.
R. Marchant, A. Cleef, S. P. Harrison, H. Hooghiemstra, V. Markgraf, J. van Boxel, T. Ager, L. Almeida, R. Anderson, C. Baied, H. Behling, J. C. Berrio, R. Burbridge, S. Björck, R. Byrne, M. Bush, J. Duivenvoorden, J. Flenley, P. De Oliveira, B. van Geel, K. Graf, W. D. Gosling, S. Harbele, T. van der Hammen, B. Hansen, S. Horn, P. Kuhry, M.-P. Ledru, F. Mayle, B. Leyden, S. Lozano-García, A. M. Melief, P. Moreno, N. T. Moar, A. Prieto, G. van Reenen, M. Salgado-Labouriau, F. Schäbitz, E. J. Schreve-Brinkman, M. Wille   +39 more
doaj  

Anthromes and terrestrial carbon

PLANTS, PEOPLE, PLANET, EarlyView.
Anthony P. Walker, Rose Z. Abramoff, Kathryn Baragwanath, Matthew E. Craig, Yadvinder Malhi, Crystal N. H. McMichael   +5 more
wiley   +1 more source

Repeated trends in altitudinal gradients of diversity: How habitat filtering and biotic interactions structure ecological communities

Journal of Animal Ecology, EarlyView.
This study reveals that tropical butterfly communities show remarkably consistent elevational patterns of diversity and phylogenetic structure across regions with contrasting evolutionary histories, demonstrating how regional species pools and local ecological factors jointly shape biodiversity along altitudinal gradients.
Raphaël Fougeray, Arlety Roy, Christelle Penager, Guillaume Correa Pimpao, Ronald Mori Pezo, Léo‐Paul Charlet, Nino Page, Ombeline Sculfort, Stéphanie Gallusser, Marianne Elias, Melanie McClure   +10 more
wiley   +1 more source