Results 41 to 50 of about 152 (135)

Holocene paleoclimatic reconstruction based on the Lagoa Dourada deposits, southern Brazil

open access: yesGeologica Acta, 2003
The Lagoa Dourada is a circular-shaped pond formed on the Furnas Formation (Devonian of the Paraná Basin), filled by late Pleistocene - Holocene sediments. It lies in the hydrographic basin of the Guabiroba River, a tributary of the Tibagi River situated
Mário Sérgio de Melo   +3 more
doaj   +1 more source

Mating compatibility among different wild and laboratory strains of the Brazil‐1 morphotype of Anastrepha fraterculus (Diptera: Tephritidae)

open access: yesInsect Science, Volume 32, Issue 5, Page 1607-1620, October 2025.
Isolation Index (ISI) estimates were obtained from mating compatibility tests between flies of the different laboratory strains from CENA/USP and wild populations (Vacaria‐WV; and Pelotas‐WP) from southern Brazil. Abstract In cases where a pest that is target of a Sterile Insect Technique (SIT) campaign is a member of a cryptic species complex, it is ...
Paloma Giustina   +7 more
wiley   +1 more source

Illuminating the Dark: Using eDNA Metabarcoding to Study the Unique Ichthyofauna of the Furnas Formation Sinkholes

open access: yesEnvironmental DNA, Volume 7, Issue 4, July–August 2025.
Using eDNA metabarcoding, we assessed fish diversity in isolated sinkholes in southern Brazil, uncovering signs of local extinction and species persistence. This approach offers a non‐invasive tool for biodiversity assessment and informs conservation efforts in unique karst environments.
Luz E. De la Ossa‐Guerra   +5 more
wiley   +1 more source

Molecular relationships of Campomanesia xanthocarpa within Myrtaceae based on the complete plastome sequence and on the plastid ycf2 gene

open access: yesGenetics and Molecular Biology
Plastomes are very informative structures for comparative phylogenetic and evolutionary analyses. We sequenced and analyzed the complete plastome of Campomanesia xanthocarpa and compared its gene order, structure, and evolutionary characteristics within ...
Lilian de Oliveira Machado   +6 more
doaj   +1 more source

Fish biodiversity of a tropical estuary under severe anthropic pressure (Doce River, Brazil)

open access: yesNeotropical Ichthyology, 2022
The Doce River has undergone severe changes over the last centuries (e.g., flow regulation, pollution, habitat and species loss). Here, we present the first comprehensive fish biodiversity assessment of the Doce River estuary and a summary of the main ...
Vitor L. A. Rodrigues   +6 more
doaj   +1 more source

Storage Effects on Shea (Vitellaria paradoxa C.F. Gaertn) Seed Radicle Protrusion and Plumule Development

open access: yesInternational Journal of Agronomy, Volume 2025, Issue 1, 2025.
Delayed sowing of the recalcitrant shea seeds leads to a reduction in radicle protrusion and seedling emergence. Although storage of shea seeds results in a rapid decline in viability, it is necessary when the nursery is not ready for immediate seeding.
Sampson Konlan   +6 more
wiley   +1 more source

SUCOS DE FRUTAS COMO ATRATIVOS PARA CAPTURA DE ADULTOS DA MOSCA-DAS-FRUTAS Anastrepha fraterculus (Wied.,1830) (DIPTERA, TEPHRITIDAE)

open access: yesPesquisa Agropecuária Gaúcha, 1997
Respostas sobre atração a diferentes sucos de frutas para os adultos de Anastrepha fraterculus (Wied.) (Diptera, Tephritidae) foram estudadas. Doze diferentes sucos de frutas, naturais e adoçados, foram avaliados.
LUIZ ANTONIO SALLES
doaj  

Escape behavior of rocky‐reef fish reveals the impact of spearfishing across different management regimes

open access: yesEcosphere, Volume 15, Issue 11, November 2024.
Abstract Flight initiation distance (FID), the distance at which an organism begins to flee from an approaching threat, is a major component of antipredator escape behavior and a potential indicator of threat perception in fishes. In this study, we analyzed the FID of three important rocky‐reef fish species targeted by spearfishers, which are of ...
Francisco J. Contreras‐Drey   +8 more
wiley   +1 more source

INCIDÊNCIA DE INSETOS-PRAGA EM SISTEMA AGROFLORESTAL MULTIESTRATA NA REGIÃO CENTRO-SUL DO PARANÁ

open access: yesBIOFIX Scientific Journal, 2017
O presente trabalho tem como objetivo identificar e quantificar a incidência de insetos-praga em sistemas agroflorestais, avaliando o grau de danos causados e testando a composição dos sistemas no sentido de minimizar a ocorrência.
Thiare Aparecida do Valle Coelho   +3 more
doaj   +1 more source

Comprehensive and heart‐cutting multidimensional liquid chromatography–mass spectrometry and its applications in food analysis

open access: yesMass Spectrometry Reviews, Volume 43, Issue 5, Page 936-976, September/October 2024.
Abstract In food analysis, conventional one‐dimensional liquid chromatography methods sometimes lack sufficient separation power due to the complexity and heterogeneity of the analyzed matrices. Therefore, the use of two‐dimensional liquid chromatography (2D‐LC) turns out to be a powerful tool to consider, especially when coupled to mass spectrometry ...
Irene Caño‐Carrillo   +5 more
wiley   +1 more source

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