Results 51 to 60 of about 1,459 (171)

Spatiotemporal Evolution of Hydroclimatic Variables in the Brazilian Semi‐Arid Region Through the Aridity Index and Susceptibility to Desertification

International Journal of Climatology, Volume 46, Issue 8, 30 June 2026.
Over the past 60 years, noticeable changes have been observed in the main hydroclimatological variables, driven by both natural and anthropogenic factors. In the context of climate change, such behaviour may adversely affect the state's economic activities, as well as increase the recurrence of extreme events in the region.
Ronaldo Guilherme Santos Lima, Izaias Rodrigues de Souza Neto, André Quintão de Almeida, Vania Elisabete Schneider, Ludmilson Abritta Mendes   +4 more
wiley   +1 more source

Seleção de linhagens de Biomphalaria tenagophila e Biompnalaria glabrata visando maior suscetibilidade ao Schistosoma mansoni Selection of strains of Biomphalaria tenagophila and Biomphalaria glabrata to improve susceptibility to Schistosoma mansoni

Revista de Saúde Pública, 1978
Utilizando um esquema de seleção individual em progenies autofecundadas, foram obtidas, após quatro gerações, populações de Biomphalaria tenagophila e de Biomphalaria glabrata, altamente suscetíveis às linhagens do Schistosoma mansoni do Vale do Rio ...
José Valfrido de Santana, Luiz Augusto Magalhães, Humberto de Araújo Rangel   +2 more
doaj   +1 more source

Genetic Structure and Conservation Strategies for the Endangered Catfish Steindachneridion melanodermatum (Siluriformes, Pimelodidae) in the Iguaçu River, Brazil

Aquatic Conservation: Marine and Freshwater Ecosystems, Volume 36, Issue 6, June 2026.
ABSTRACT The endemic catfish Steindachneridion melanodermatum from the Iguaçu River basin, southern Brazil, is one of the most threatened pimelodid species. Comprehension of its genetic structure is imperative to the formulation of long‐term efficacious conservation strategies. A genetic analysis was conducted on three populations from the lower Iguaçu
Jesús Hernández‐Gómez, Caio Felipe da Silva, Carolina de Oliveira Magalhães, Bruno Henrique Mattiello, Juliano Tupan Coragem, Ricardo Utsunomia, Fabio Porto‐Foresti, Fernanda Dotti do Prado, Roberto Ferreira Artoni   +8 more
wiley   +1 more source

Configurational Fragility of Forest Landscapes Under Multiple Anthropic Uses

Ecology and Evolution, Volume 16, Issue 6, June 2026.
This study revealed that 72.2% of forest fragments and 96.1% of savannas have high configurational fragility, with a predominance of High III and Intermediate I sublevels and occasional occurrences of low fragility (Low III). Fragility is driven by pastures (57.7%), showing that landscapes with the same forest cover differ in fragility depending on the
Jessyca Janyny de Oliveira Saraiva‐Maia, Milena Dutra da Silva, Wallace Beiroz, Nadjacleia Vilar Almeida   +3 more
wiley   +1 more source

Assessing fish assemblages similarity above and below a dam in a Neotropical reservoir with partial blockage

Brazilian Journal of Biology
Damming rivers disrupts the water flow and changes the ichthyofauna organisation. We investigated an impoundment with permanent connection and homogeneous environmental conditions between the zones above and below the dam.
FG. Araújo, ABI. Santos, RJ. Albieri
doaj   +1 more source

Ecological Niche Divergence in an Invasive Non‐Native Shrub: Implications for Risk Assessments

Austral Ecology, Volume 51, Issue 6, June 2026.
The worldwide spread invasive shrub Nicotiana glauca (tree tobacco) underwent divergent niche shifts across two of its invaded regions. In the mediterranean region it presents high thermal seasonality and low thermal seasonality in the Caatinga (Brazil).
Fellipe Alves Ozorio do Nascimento, Matheus Silva Asth, Renato Garcia Rodrigues, Rafael Dudeque Zenni, Edson Gomes de Moura Júnior   +4 more
wiley   +1 more source

Estratigrafia e palinologia e depósitos turfosos e alúvio-coluviais quaternários no Parque Estadual da Serra do Tabuleiro e planalto de São Bento do Sul, Santa Catarina [PDF]

, 2010
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro de Filosofia e Ciências Humanas, Programa de Pós-Graduação em Geografia, Florianópolis, 2010Este trabalho apresenta os resultados da integração da análise estratigráfica e palinológica a ...
Lima, Gisele Leite de
core  

A ocupação humana e o rio Paraíba do Sul no Vale do Paraíba paulista entre os séculos XVI e XVIII

, 2023
A história do Vale do Paraíba paulista está intimamente ligada ao rio Paraíba do Sul e aos outros corpos d’água que integram a sua bacia. A análise busca a reflexão sobre as formas de utilização do rio Paraíba do Sul em seu território paulista ...
Almeida, Giovana Guedes
core  

Volta Redonda (RJ) - a cidade do aço: citogenotoxicidade da água do Rio Paraíba do Sul [PDF]

, 2023
Volta Redonda, a city located in the state of Rio de Janeiro (Brazil), is considered one of the great industrial centers in the country. The city was strategically chosen to house CSN (Companhia Siderúrgica Nacional), one of the largest industries in the
Santos, Regina Gabriela de Lima
core  

Detection of Leptospira in cane toads (Rhinella jimi) from urban and rural Paraíba, Brazil

Veterinary Record, Volume 198, Issue 10, Page e461-e470, 16/23 May 2026.
Abstract Background Leptospirosis is a significant zoonosis in tropical regions, where poor sanitation and favourable climate aid its spread. Synanthropic animals such as the cane toad (Rhinella jimi), which share environments with both people and wild and domestic animals, may harbour Leptospira and contribute to urban and rural transmission cycles ...
Karla N. de Souza Rocha, Aline de Lima Peixoto, Lucila S. de Medeiros Pereira, Debora Ferreira Cardoso, Maria L. C. Rodrigues Silva, Sérgio S. de Azevedo, Juliana P. F. de Oliveira, Clebert J. Alves, Mozar Alves Fonseca, Severino S. dos Santos Higino   +9 more
wiley   +1 more source