Anais da Academia Brasileira de Ciencias最新文献_第8页

Occupancy and distribution of globally threatened birds in a hotspot susceptible to agricultural expansion. 农业扩张敏感区全球濒危鸟类的占有与分布

IF 1.2 4区综合性期刊

Anais da Academia Brasileira de Ciencias Pub Date : 2026-08-24 eCollection Date: 2026-01-01 DOI: 10.1590/0001-3765202620250843

Kawan William Correia-Sousa, Carlos Salustio-Gomes, Daniel O Reis, Willane S Rodrigues, Sandara Nadja R Brasil, Maria Claudene Barros, Flávio K Ubaid, Randson M C Paixão

{"title":"Occupancy and distribution of globally threatened birds in a hotspot susceptible to agricultural expansion.","authors":"Kawan William Correia-Sousa, Carlos Salustio-Gomes, Daniel O Reis, Willane S Rodrigues, Sandara Nadja R Brasil, Maria Claudene Barros, Flávio K Ubaid, Randson M C Paixão","doi":"10.1590/0001-3765202620250843","DOIUrl":"https://doi.org/10.1590/0001-3765202620250843","url":null,"abstract":"Anthropogenic land-use and land-cover changes have a direct impact on species that depend on native habitats, mainly in biodiversity hotspots undergoing agricultural expansion. In this study, we used occupancy models accounting for imperfect detection to assess the distribution of four threatened species (Celeus obrieni, Herpsilochmus pectoralis, Malacoptila minor, and Xiphocolaptes falcirostris) in an agriculturally relevant region of the Brazilian Cerrado. We analyzed the effect of nine environmental covariates related to climate, topography, land-use, and fire, using 23 years (2000-2022) of sampling data from citizen science and tested different trends of sampling effort on species detection. Our results indicated that forest cover and elevation were the main predictors of occupancy for H. pectoralis, M. minor, and X. falcirostris, whereas C. obrieni responded primarily to climate-related covariates. Detection followed both logistic and exponential patterns, reflecting differences in species ecology and sampling intensity. Spatial predictions revealed a high-priority area in northern Maranhão with overlapping high occupancy probabilities for all four species. We conclude that forest cover, elevation, and climate influence the occupancy of threatened birds in MATOPIBA, highlighting priority areas for conservation in the face of ongoing agricultural expansion and supporting more effective conservation strategies.","PeriodicalId":7776,"journal":{"name":"Anais da Academia Brasileira de Ciencias","volume":"98 suppl 1","pages":"e20250843"},"PeriodicalIF":1.2,"publicationDate":"2026-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148838981","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Impact of climate change on the irrigation water demand of rainfed crops in the Southern and Steppe regions of Rio Grande do Sul, Brazil. 气候变化对巴西南部和大草原地区旱作作物灌溉用水需求的影响

IF 1.2 4区综合性期刊

Anais da Academia Brasileira de Ciencias Pub Date : 2026-08-24 eCollection Date: 2026-01-01 DOI: 10.1590/0001-3765202620241458

Iulli P Cardoso, Tirzah M Siqueira, Luis Carlos Timm

{"title":"Impact of climate change on the irrigation water demand of rainfed crops in the Southern and Steppe regions of Rio Grande do Sul, Brazil.","authors":"Iulli P Cardoso, Tirzah M Siqueira, Luis Carlos Timm","doi":"10.1590/0001-3765202620241458","DOIUrl":"https://doi.org/10.1590/0001-3765202620241458","url":null,"abstract":"Proper management of natural resources is essential to improve agricultural productivity and reduce potential losses. The PROJETA platform provides global climate models regionalized by the ETA model, enabling more accurate climate projections for specific regions. This study aimed to evaluate the influence of climate change on irrigation water demand using three global climate models (CANESM2, HADGEM2-ES, and MIROC5) regionalized by the ETA model for the baseline period (1961-2005) and two future scenarios (RCP 4.5 and RCP 8.5). The scenarios were subdivided into three future periods and analyzed for 27 municipalities located in the Southern and Steppe regions of Rio Grande do Sul using the SWAP (Soil, Water, Atmosphere and Plant) model. The results indicate variations in irrigation water demand among models and scenarios. Some projections suggest an increase in irrigation requirements in certain municipalities, while others indicate a reduction when compared to the baseline period. The projected increase in water demand is mainly associated with rising temperatures, which may intensify crop transpiration and soil water evaporation. These findings highlight the importance of climate adaptation strategies and improved water resource management to support sustainable agricultural production under future climate conditions.","PeriodicalId":7776,"journal":{"name":"Anais da Academia Brasileira de Ciencias","volume":"98 3","pages":"e20241458"},"PeriodicalIF":1.2,"publicationDate":"2026-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148839256","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Relationship Between Sleep Duration and Obesity in Children Aged 6-12 Years and Adolescents Aged 13-18 Years: A Meta-Analysis. 6-12岁儿童和13-18岁青少年睡眠时间与肥胖关系的meta分析

IF 1.2 4区综合性期刊

Anais da Academia Brasileira de Ciencias Pub Date : 2026-08-24 eCollection Date: 2026-01-01 DOI: 10.1590/0001-3765202620260077

Çiğdem Müge Hayli, Seockhoon Chung, Mehmet Zeki Avci, Dilek Demir Kösem

{"title":"Relationship Between Sleep Duration and Obesity in Children Aged 6-12 Years and Adolescents Aged 13-18 Years: A Meta-Analysis.","authors":"Çiğdem Müge Hayli, Seockhoon Chung, Mehmet Zeki Avci, Dilek Demir Kösem","doi":"10.1590/0001-3765202620260077","DOIUrl":"10.1590/0001-3765202620260077","url":null,"abstract":"Studies have reported an association between sleep duration and obesity in children and adolescents worldwide. This study aimed to investigate the relationship between sleep duration and obesity in children aged 6-12 years and adolescents aged 13-18 years using a meta-analysis approach. Databases, including PubMed, Proquest, Google Scholar, EBSCO, and Web of Science, were searched for articles published between 2010 and 2024. Data analysis was conducted using the Comprehensive Meta-Analysis (CMA) software. Of the 1116 articles identified, 17 were systematically reviewed, and 10 were included in the meta-analysis. The findings revealed a significant association between short sleep duration and obesity in children and adolescents, with a combined odds ratio (OR) of 1.25 (95% CI: 1.12, 1.42). Subgroup analysis by age demonstrated similar results to the combined OR. In children aged 6-12 years, the combined OR was 1.20 (95% CI: 1.08-1.42), whereas in adolescents aged 13-18 years, it was 1.38 (95% CI: 1.18-1.63). These results indicate that improving sleep quality and promoting healthy eating habits among children and adolescents may reduce the risk of obesity. Further training programs, interventions, and research are recommended.","PeriodicalId":7776,"journal":{"name":"Anais da Academia Brasileira de Ciencias","volume":"98 suppl 1","pages":"e20260077"},"PeriodicalIF":1.2,"publicationDate":"2026-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148838976","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Comparative study of aqueous ultrasound-assisted extraction methods of bioactive compounds from Tarumã (Vitex megapotamica). 水相超声辅助提取Tarumã（牡荆）生物活性物质方法的比较研究。

IF 1.2 4区综合性期刊

Anais da Academia Brasileira de Ciencias Pub Date : 2026-08-24 eCollection Date: 2026-01-01 DOI: 10.1590/0001-3765202620251326

Ana Paula Fachinetto, Marcia B Schuster, Georgia Ane Raquel Sehn, Luana Bettanin, Cristina Batistello, Ruann J S DE Castro, Marcos H B Holanda, Darlene Cavalheiro

{"title":"Comparative study of aqueous ultrasound-assisted extraction methods of bioactive compounds from Tarumã (Vitex megapotamica).","authors":"Ana Paula Fachinetto, Marcia B Schuster, Georgia Ane Raquel Sehn, Luana Bettanin, Cristina Batistello, Ruann J S DE Castro, Marcos H B Holanda, Darlene Cavalheiro","doi":"10.1590/0001-3765202620251326","DOIUrl":"https://doi.org/10.1590/0001-3765202620251326","url":null,"abstract":"Vitex megapotamica (Tarumã) fruits are a potential source of phenolic compounds with relevant biological activities. This study compared ultrasound-assisted extraction (UAE) using a probe-type ultrasonic apparatus with conventional shaker extraction for the recovery of bioactive compounds from ripe Tarumã fruits. UAE extraction kinetics were evaluated at 5, 10, 15, and 30 min (90 °C, 60% amplitude). The extracts were evaluated for their highest total phenolic content (TPC), antioxidant, and anti-inflammatory activities. The TPC was obtained after 5 min of extraction, and this condition was selected for comparison with shaker extraction under the same parameters. UAE significantly increased phenolic recovery, reaching 1909.2 mg GAE 100 g⁻¹ of sample, whereas the shaker method yielded 1549.5 mg GAE 100 g⁻¹. Despite the higher phenolic extraction efficiency, antioxidant and anti-inflammatory activities did not differ significantly between extracts (p > 0.05). High-performance liquid chromatography analysis (HPLC) revealed ellagic acid as the predominant compound in the UAE extract, while myricetin was the major phenolic compound identified in the shaker extract. These results demonstrate that UAE is an efficient and rapid technique to enhance the recovery of phenolic compounds from Tarumã fruits, supporting its potential application in the development of bioactive extracts.","PeriodicalId":7776,"journal":{"name":"Anais da Academia Brasileira de Ciencias","volume":"98 3","pages":"e20251326"},"PeriodicalIF":1.2,"publicationDate":"2026-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148839226","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Distribution patterns, Diversity, and Endemism of Melochia L. (Byttnerioideae - Malvaceae) in Brazil. 巴西野蝇的分布格局、多样性及特有性。

IF 1.2 4区综合性期刊

Anais da Academia Brasileira de Ciencias Pub Date : 2026-08-21 eCollection Date: 2026-01-01 DOI: 10.1590/0001-3765202620251022

Francisco Carlos P DA Costa, Julia Lilian A Gonçalves, Maria Teresa Buril

{"title":"Distribution patterns, Diversity, and Endemism of Melochia L. (Byttnerioideae - Malvaceae) in Brazil.","authors":"Francisco Carlos P DA Costa, Julia Lilian A Gonçalves, Maria Teresa Buril","doi":"10.1590/0001-3765202620251022","DOIUrl":"https://doi.org/10.1590/0001-3765202620251022","url":null,"abstract":"Melochia (Byttnerioideae - Malvaceae) is widely distributed across tropical and subtropical regions. In Brazil, however, its distribution, species richness, diversity, and endemism remain poorly understood. The present study aimed to analyze the biogeography of Melochia and infer which distribution patterns best reflect its geographic distribution in Brazil and where its centers of diversity and endemism are located. Species occurrence data were compiled from online databases, resulting in 4,136 cleaned records representing 27 species. Richness and diversity analyses were conducted using DIVA-GIS, while QGIS was used to create the distribution maps. Parsimony Analysis of Endemicity was performed with PAUP. Our results indicate that most Melochia species are widely distributed. Seven areas of diversity were identified: Pantanal, Central Brazilian Cerrado, Northern and Southern Espinhaço Range, Serra dos Carajás, Tapajós, and Raposa Serra do Sol Indigenous Land. Two areas of endemism were detected: Chapada Diamantina, and Chapada do Araripe. These patterns highlight the ecological relevance of Melochia across varied environmental gradients and its biogeographical structure, particularly in the Central-West and Espinhaço Range. The study also reveals significant knowledge gaps and underrepresentation of certain species in herbarium collections and databases, stressing the need for increased botanical exploration and habitat protection.","PeriodicalId":7776,"journal":{"name":"Anais da Academia Brasileira de Ciencias","volume":"98 3","pages":"e20251022"},"PeriodicalIF":1.2,"publicationDate":"2026-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148839251","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Soil microbial indicators and bacterial co-occurrence networks reveal early changes under no-tillage and cover crops in a tropical Oxisol. 土壤微生物指标和细菌共生网络揭示了热带Oxisol免耕和覆盖作物下的早期变化。

IF 1.2 4区综合性期刊

Anais da Academia Brasileira de Ciencias Pub Date : 2026-08-21 eCollection Date: 2026-01-01 DOI: 10.1590/0001-3765202620260015

Adão S Ferreira, Ronaldo B Pinheiro, Rafael S Mendonça, João Pedro V Ázara, Maria Rita DE Cassia Campos

{"title":"Soil microbial indicators and bacterial co-occurrence networks reveal early changes under no-tillage and cover crops in a tropical Oxisol.","authors":"Adão S Ferreira, Ronaldo B Pinheiro, Rafael S Mendonça, João Pedro V Ázara, Maria Rita DE Cassia Campos","doi":"10.1590/0001-3765202620260015","DOIUrl":"https://doi.org/10.1590/0001-3765202620260015","url":null,"abstract":"Improving soil quality in tropical agroecosystems requires management strategies that enhance soil functioning and ecological processes. This study evaluated whether short-term adoption of no-tillage combined with cover crops induces early changes in soil microbial indicators and bacterial co-occurrence patterns in a tropical Oxisol under soybean cultivation in the Brazilian Cerrado. Conventional plowing was compared with no-tillage systems using maize, millet, Crotalaria spp., Urochloa spp., and intercropped combinations during the off-season. After three years, microbial biomass carbon, enzyme activities, potentially mineralizable nitrogen, and bacterial community structure (16S rRNA) were assessed. No-tillage with cover crops increased microbial biomass and enzymatic activities related to nutrient cycling. Crotalaria enhanced potentially mineralizable nitrogen and dehydrogenase activity, while intercropping increased β-glucosidase activity. Bacterial alpha diversity increased under no-tillage, whereas community composition showed limited variation. Network analysis revealed greater bacterial connectivity and interaction complexity under no-tillage, indicating that microbial interactions are sensitive early indicators of regenerative changes in tropical soils.","PeriodicalId":7776,"journal":{"name":"Anais da Academia Brasileira de Ciencias","volume":"98 3","pages":"e20260015"},"PeriodicalIF":1.2,"publicationDate":"2026-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148839240","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Three new records of Hudson's Humming Frog, Chiasmocleis hudsoni (Microhylidae; Anura) (records, to eastern Amazonia). 哈德逊嗡嗡蛙三新记录，Chiasmocleis hudsoni（小蛙科；无尾目）（记录于亚马逊东部）。

IF 1.2 4区综合性期刊

Anais da Academia Brasileira de Ciencias Pub Date : 2026-08-17 eCollection Date: 2026-01-01 DOI: 10.1590/0001-3765202620260008

Gabriel C Oliveira, Sílvia Regina C DE Pinho, Iago B Silva, Kleiton Rodolfo Alves-Silva, Erikson Bruno L Ferreira, Juliana Lucena S Dos Santos, Pedro Luiz V Del Peloso

引用次数: 0

Wild chelonians as pets in Brazil: biological profiles and social drivers. 巴西野生龟类宠物：生物概况和社会驱动因素。

IF 1.2 4区综合性期刊

Anais da Academia Brasileira de Ciencias Pub Date : 2026-08-17 eCollection Date: 2026-01-01 DOI: 10.1590/0001-3765202620250923

Priscila S Gomes, Sabine B Rocha, Carlos Eduardo V Grou, Fabrício H Oda, Marcos Vinicius Rodrigues

{"title":"Wild chelonians as pets in Brazil: biological profiles and social drivers.","authors":"Priscila S Gomes, Sabine B Rocha, Carlos Eduardo V Grou, Fabrício H Oda, Marcos Vinicius Rodrigues","doi":"10.1590/0001-3765202620250923","DOIUrl":"https://doi.org/10.1590/0001-3765202620250923","url":null,"abstract":"Brazil harbors the world's richest biodiversity, making its native fauna a target for wildlife trafficking. This study aims to characterize the profile of chelonian species admitted to two Wildlife Screening Centers - CETAS in southeastern Brazil, focusing on taxonomy, demographic patterns, and final destination. We also adopted an ethnoherpetological approach to investigate public perceptions of chelonians as pets, based on face-to-face and online surveys conducted across Brazil. A total of 68 chelonians from six species without legal documentation were admitted to the Center's facilities. Chelonoidis carbonarius was the most frequently admitted species (81%) and also the most commonly reported pet (40%) in the Vale do Rio Doce mesoregion, while Trachemys dorbigni was the most popular pet nationwide (12%). Approximately half of the respondents acquired chelonians through donations and would surrender them to environmental agencies or zoos if no longer interested. Chelonian admissions at the Centers increased by 175% over three years. Our findings highlight the role of social and cultural factors in driving the illegal trade of chelonians in Brazil, reinforcing the need for strengthened enforcement, clearer regulatory frameworks, including in digital environments, and targeted environmental education to reduce demand and encourage societal participation in combating wildlife trafficking.","PeriodicalId":7776,"journal":{"name":"Anais da Academia Brasileira de Ciencias","volume":"98 suppl 1","pages":"e20250923"},"PeriodicalIF":1.2,"publicationDate":"2026-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148787344","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Expanding the knowledge on Aximopsis Ashmead, 1904 (Hymenoptera: Eurytomidae): a new species from Brazil and novel distributional data for Aximopsis masneri Gates, 2009. 扩展对阿什米德蚁巢的认识（膜翅目：蚁巢科）：巴西一新种及新分布资料。

IF 1.2 4区综合性期刊

Anais da Academia Brasileira de Ciencias Pub Date : 2026-08-17 eCollection Date: 2026-01-01 DOI: 10.1590/0001-3765202620251074

Nelson Wanderley Perioto, Rogéria Inês Rosa Lara, Hossein Lotfalizadeh

引用次数: 0

First record of the invasive snail Sinotaia quadrata in an isolated lake in Buenos Aires City, Argentina. 阿根廷布宜诺斯艾利斯市一个孤立湖泊中首次记录到入侵蜗牛sintaia quadrata。

IF 1.2 4区综合性期刊

Anais da Academia Brasileira de Ciencias Pub Date : 2026-08-17 eCollection Date: 2026-01-01 DOI: 10.1590/0001-3765202620260336

Marina Güller, Diego Gabriel Zelaya

引用次数: 0