Results 51 to 60 of about 137,453 (311)

Do the recent severe droughts in the Amazonia have the same period of length? [PDF]

open access: yes, 2015
We propose a new measure based on drought period length to assess the temporal difference between the recent two severe droughts of 2005 and 2010 in the Amazonia.
Kurths, Jürgen   +4 more
core   +3 more sources

A new species of Lonchidiidae (Hybodontiformes) from the Late Jurassic of Brazil (Aliança Formation, Jatobá Basin)

open access: yesThe Anatomical Record, EarlyView.
Abstract The Aliança Formation (Jatobá Basin) represents lacustrine deposits formed in oxygenated waters that hosted a diverse fauna, including Hybodontiform sharks. Within this group, the Family Lonchidiidae comprises 11 valid genera, with Parvodus previously reported in Brazilian deposits from the Brejo Santo Formation (Araripe Basin, Late Jurassic ...
Larissa de Souza Ribeiro   +1 more
wiley   +1 more source

MicroCT reinvestigation of the only articulated fossil anostomid fish reveals synonymy of Arhinolemur Ameghino, 1898 and Megaleporinus Ramirez et al., 2017

open access: yesThe Anatomical Record, EarlyView.
Abstract Arhinolemur scalabrinii† Ameghino, 1898 was originally described as a strepsirrhine primate (Mammalia) but has been recognized as an anostomid fish since 2012. It remains the only extinct anostomid species known from complete cranial material.
Karen M. Panzeri   +8 more
wiley   +1 more source

Flora do Ceará, Brasil: Polygonaceae

open access: yesRodriguésia
Resumo Polygonaceae tem ampla distribuição no Brasil e foi registrada em diferentes domínios fitogeográficos. Os representantes desta família são reconhecidos por apresentar folhas simples, alternas e inteiras, caules e ramos com nós e entrenós bem ...
Francisco Romário Silva Tabosa   +3 more
doaj   +1 more source

Amphibia, Anura, Leptodactylidae, Leptodactylus syphax Bokermann, 1969: distribution extension and geographic distribution map [PDF]

open access: yesCheck List, 2011
Leptodactylus syphax is a mid-sized frog that inhabits open rocky areas in central, southeastern and northeastern Brazil, besides southern Paraguay and eastern Bolivia. Here we reported an adult male from Parque Municipal Cachoeira do Bota Fora, Piripiri
Etielle Andrade   +3 more
doaj   +3 more sources

Flora of Ceará, Brazil: Onagraceae

open access: yesRodriguésia, 2021
This study aimed to provide the floristic survey of Onagraceae in Ceará state. The floristic study consisted of analyzing material deposited in the herbaria EAC, ESA, FUEL, HCDAL, HUEFS, HUVA, HVASF, INPA, K, MO, NY, P, RB, UFRN and US, as well as field ...
Hugo Pereira do Nascimento   +1 more
doaj   +1 more source

Socioenvironmental implications of Jatropha curcas cultivation for biodiesel supply in postmining communities

open access: yesBiofuels, Bioproducts and Biorefining, EarlyView.
Abstract The long‐term viability of Jatropha curcas as a biodiesel feedstock has been widely debated. Many early initiatives failed to deliver consistent economic returns despite promising environmental attributes. This study re‐evaluated J. curcas‐based systems within an integrated environmental–economic framework, focusing on their potential role in ...
Eduardo Sansão Sozinho Maurício   +3 more
wiley   +1 more source

Heliotropium L. (Boraginaceae - Heliotropioideae) de Pernambuco, Nordeste do Brasil,

open access: yesRodriguésia
RESUMO Foi realizado o estudo taxonômico do gênero Heliotropium L. no estado de Pernambuco, utilizando-se espécimes coletados em campo por um período de 16 meses, além de materiais de empréstimo e/ou doação provenientes de vários herbários nacionais ...
José Iranildo Miranda de Melo   +1 more
doaj   +1 more source

Flora of Ceará, Brazil: Vochysiaceae [PDF]

open access: yesRodriguésia
As part of the “Flora of Ceará: Knowing to Conserve” project, this study aimed to contribute to the knowledge of the diversity and distribution of Vochysiaceae species in the state of Ceará.
Igor Renan Bonfim de Souza   +3 more
doaj   +1 more source

Vanilla bahiana Hoehne and Vanilla pompona Schiede (Orchidaceae, Vanilloideae): two new records from Maranhão state, Brazil [PDF]

open access: yesCheck List, 2017
We present here the first records of Vanilla bahiana and Vanilla pompona from Maranhão state, northeastern Brazil. Both species were collected in a gallery forest, in areas of Cerrado vegetation at Caxias municipality.
Alessandro Wagner Coelho Ferreira   +5 more
doaj   +3 more sources

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