Results 71 to 80 of about 69,295 (229)

Prenatal Environmental Hypoxia Enhances Adult Hypoxia Tolerance in Brandt's Voles (Lasiopodomys brandtii): Behavioral and Transcriptomic Insights

Integrative Zoology, EarlyView.
Prenatal hypoxia enhances adult hypoxia tolerance in Brandt's voles, preserving cognitive and memory functions. Transcriptomic analysis reveals adaptive changes in energy metabolism, oxygen transport, and neuroprotective mechanisms, highlighting developmental plasticity.
Mengyang Li, Congcong Qiao, Xiujuan Li, Maolin Huang, Zhenlong Wang, Luye Shi   +5 more
wiley   +1 more source

Holocene vegetation, climate and fire dynamics in the Serra dos Órgãos, Rio de Janeiro State, southeastern Brazil

Acta Palaeobotanica, 2020
We analysed pollen and macro-charcoal from a sediment core representing the last 9840 cal yr BP, collected at 2003 m a.s.l. in a patch of upper montane Atlantic Rain Forest (UMARF) embedded in a campos de altitude (high-elevation grassland) matrix in the
Maria Carolina Guarinello de Oliveira Portes, Hermann Behling, Vincent Montade, Hugh Deforest Safford   +3 more
doaj   +1 more source

Aplicação de Sensoriamento Remoto na análise das mudanças da vegetação de campos de altitude no Pantanal usando dados multitemporais Landsat

Terr Plural, 2023
Devido ao clima frio e altitude, identificar as tendências dinâmicas da vegetação e os principais fatores que contribuem para mudanças de cobertura vegetal em áreas de Campos de Altitude é essencial para entender alterações climáticas em regiões montanhosas.
Dhonatan Diego Pessi, Normandes Matos da Silva, Camila Leonardo Mioto, Domingos Sávio Barbosa, Rodrigo Martins Moreira, Mateus Antonio Gums Gomes, Alfredo Marcelo Grigio, Vinicius de Oliveira Ribeiro, Marco Antonio Diodato, Antonio Conceição Paranhos Filho   +9 more
openaire   +1 more source

Increasing concentrations of dichloromethane, CH2Cl2, inferred from CARIBIC air samples collected 1998–2012 [PDF]

, 2015
Atmospheric concentrations of dichloromethane, CH2Cl2, a regulated toxic air pollutant and minor contributor to stratospheric ozone depletion, were reported to have peaked around 1990 and to be declining in the early part of the 21st century.
Baker, Alex, Brenninkmeijer, C. A. M., Humphrey, S., Laube, J. C., Leedham Elvidge, Emma, Montzka, S. A., O'Sullivan, D. A., Oram, D. E.   +7 more
core   +2 more sources

Seasonality as a structuring factor of the dung beetle community in burned neotropical savannas

Ecological Entomology, EarlyView.
We tested the effects of fire, vegetation cover and seasonality on dung beetle communities, focusing on species richness, composition and co‐occurrence patterns in savannas. Fire did not affect species richness. However, seasonality was the dominant factor influencing species composition, followed by fire and vegetation cover.
Nayara Letícia Reis, Kênia A. Santos, Luiz Cortez, Julio Louzada   +3 more
wiley   +1 more source

Mission 73 - Summary and data catalog [PDF]

, 1969
Earth resources program geographic applications program summary, recommendations, and data catalog for remote sensor mission ...
North, G. W., Pascucci, R. F.
core   +2 more sources

A fractal pattern of hierarchical genetic population structure in mixed stocks across fish segregated by dams revealed by genomic resources for curimba Prochilodus lineatus

Journal of Fish Biology, EarlyView.
Abstract Genomic resources, new microsatellite markers and a novel observation of a fractal pattern in the genetic population structure are presented for curimba, Prochilodus lineatus, a freshwater migratory model species of South America. Our main goals were to investigate the presence of mixed fish stocks and the effects of damming‐induced ...
Gabriel M. Yazbeck, Gésica Aparecida Santana Nascimento, Leiliane Campos Carvalho, Raíssa Cristina Dias Graciano, Rosiane de Paula Santos, Rafael Sachetto Oliveira   +5 more
wiley   +1 more source

Mammalia, Didelphimorphia and Rodentia, southwest of the province of Mendoza, Argentina [PDF]

, 2008
We documented terrestrial micromammal assemblages at five localities of southwestern Mendoza province, Argentina. We added new localities for several of the most uncommon small mammal species of this region (e.g.
Pardiñas, Ulises Francisco J., Teta, Pablo Vicente, Udrizar Sauthier, Daniel Edgardo   +2 more
core   +2 more sources

Hidden lineages in the African Sky Islands: A taxonomic reevaluation of Afrocarduus (Compositae)

Journal of Systematics and Evolution, EarlyView.
Species delimitation is crucial for biodiversity studies. Using Hyb‐Seq and phylogenomics, we reassessed Afrocarduus, endemic to Afromontane and Afroalpine regions, uncovering 16 evolutionary lineages (2.3 Mya). Morphological data support their distinctiveness, with acaulescence evolving independently twice. The traditionally broad A.
Lucía D. Moreyra, Juan Antonio Calleja, Cristina Roquet, Siri Birkeland, Carme Blanco‐Gavaldà, Mercè Galbany‐Casals, Abel Gizaw, Frederik Leliaert, Christian Brochmann, Alfonso Susanna   +9 more
wiley   +1 more source

Atributos químicos do solo em plantios florestais em substituição à vegetação nativa em campos de altitude

Ciência Florestal, 2020
Os plantios de espécies florestais exóticas vêm aumentando em áreas cobertas por vegetação nativa na região nordeste do Rio Grande do Sul, o que pode alterar as dinâmicas dos nutrientes no solo. Dessa maneira, o objetivo deste estudo foi avaliar os efeitos da mudança de uso da terra sobre pH e teores de carbono orgânico total (COT), Al3+, Ca2+, Mg2+ e ...
Izabel Klug, Álvaro Luiz Mafra, Augusto Friederichs, Cleber Rech, João Fert Neto   +4 more
openaire   +3 more sources