Results 141 to 150 of about 233,486 (264)

Beyond species means – the intraspecific contribution to global wood density variation

open access: yesNew Phytologist, EarlyView.
Summary Wood density is central for estimating vegetation carbon storage and a plant functional trait of great ecological and evolutionary importance. However, the global extent of wood density variation is unclear, especially at the intraspecific level. We assembled the most comprehensive wood density collection to date, including 109 626 records from
Fabian Jörg Fischer   +105 more
wiley   +1 more source

Small understory trees increase growth following sustained drought in the Amazon

open access: yesNew Phytologist, EarlyView.
Summary Droughts pose a major threat to the Amazon rainforest, yet the mechanisms enabling trees to maintain growth under prolonged drought remain poorly understood, particularly in the understory layer. We leveraged a 22‐yr Throughfall Exclusion (TFE) in a 1‐ha plot in eastern Amazonia, paired with a Control plot, to test whether small understory ...
Mateus C. Silva   +16 more
wiley   +1 more source

Espacialização da soja nos biomas Amazônia, Cerrado, Mata Atlântica e Pampa entre os anos de 2007 e 2012. [PDF]

open access: yes, 2014
Uma das culturas agrícolas que está em maior ascensão no Brasil nas últimas três décadas é a soja, que ocupa 49% da área plantada de grãos no país. A soja é cultivada principalmente nas regiões Sul e Centro-Oeste.
FERRAZ, R. B.   +3 more
core  

Edge effect influences the ecological strategies of plant communities in tropical forest fragments

open access: yesPlant Biology, EarlyView.
The edge effect in Eastern Amazonia influences ecological strategies of plant communities, with forest edges promoting traits linked to hydraulic efficiency, while interior species exhibiting diverse ecological strategies. Abstract The continuous fragmentation of tropical forests is a major threat to biodiversity and ecosystem functioning. This process
T. S. Sousa   +8 more
wiley   +1 more source

A parasitic copepod, Perulernaea gamitanae gen. et sp. nov. (Cyclopoida: Lernaeidae), from the nasal fossae of a Peruvian Amazon food fish

open access: yes, 1985
The female of Perulernaea gamitanae gen. et sp. nov. (Copepoda: Cyclopoida: Lernaeidae) is described from the nasal fossae of an important food fish, Colossoma macropomum (CUVIER), collected in the Peruvian Amazon near lquitos. The new genus differs from
Paredes, V., Thatcher, V.
core  

Historical Climate and Biome Association Drove Phylogeographic Patterns in the Dwarf Swamp Frog (Anura: Leptodactylidae)

open access: yesZoologica Scripta, EarlyView.
ABSTRACT South America, a region with high biodiversity, has been profoundly shaped by geological events during the Miocene and Pliocene, as well as by climatic changes in the Pleistocene, leading to complex phylogeographic patterns. The diverse biomes and the biotic exchanges between them, particularly between the Amazon and the Cerrado, have ...
Aline N. da Silva   +4 more
wiley   +1 more source

The Role of Gene Flow in the Diversification of the Monkey Treefrog Complex Across the South American Dry Diagonal

open access: yesZoologica Scripta, EarlyView.
ABSTRACT Understanding Neotropical megadiversity remains challenging due to fundamental taxonomic issues, including identifying and describing cryptic species and their distribution, and the limited knowledge of key factors driving biological diversification. Such challenges are especially prominent in diverse clades with high levels of cryptic species,
Felipe Camurugi   +10 more
wiley   +1 more source

Podridão peduncular dos frutos de coqueiros causada por Cylindrocladium floridanum no Estado do Pará. [PDF]

open access: yes, 2013
Publicado também: FRAZÃO, D. A. C.; HOMMA, A. K. O; VIÉGAS, I. de J. M. (Ed.). Contribuição ao desenvolvimento da fruticultura na Amazônia. Belém, PA: Embrapa Amazônia Oriental, 2006. p.
CARVALHO, J. E. U. de   +4 more
core  

Eventos Paleoclimáticos de El Niños, La Niñas e Neutros no Pacífico Tropical e de Precipitação no Sudoeste e Leste da Amazônia

open access: gold, 2020
Nathiel de Sousa Silva   +3 more
openalex   +1 more source

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