Acta Amazonica最新文献_第4页

Parasitism of Automeris liberia (Lepidoptera: Saturniidae) by tachinids (Diptera: Tachinidae) in oil palm in the Brazilian Amazon 巴西亚马孙河油棕油棕中大黄蝇(鳞翅目:大黄蝇科)对大黄蝇的寄生

IF 0.8 4区环境科学与生态学

Acta Amazonica Pub Date : 2023-03-01 DOI: 10.1590/1809-4392202201361

K. B. Silva, Chryslane Barbosa da Silva, H. F. Goulart, R. Tinôco, Jose Malta de Souza, G. Chia, Carlos Henrique Garcia, R. Toma, E. C. Guzzo

引用次数: 1

New records of Geastrum (Geastrales, Basidiomycota) for the Amazon 亚马逊河地区石龙子属（Geastrales，担子菌门）的新记录

IF 0.8 4区环境科学与生态学

Acta Amazonica Pub Date : 2023-03-01 DOI: 10.1590/1809-4392202201541

Íkaro Luiz Ferreira Santos de Freitas, J. S. Góis, J. F. FREITAS-NETO, N. M. Assis, F. R. Barbosa, I. G. Baseia

引用次数: 1

Growth and functional leaf traits of coppice regrowth of Bertholletia excelsa during an El Niño event in the central Amazon El Niño事件中亚马孙中部白桦(Bertholletia excelsa)乔木再生的生长和功能叶片特征

IF 0.8 4区环境科学与生态学

Acta Amazonica Pub Date : 2023-03-01 DOI: 10.1590/1809-4392202103653

Saine Leonam Kador Fortes, J. F. C. Gonçalves, K. Costa, Jussara de Souza Lopes, M. Ferreira, R. Lima, Adamir da R. Nina Junior

{"title":"Growth and functional leaf traits of coppice regrowth of Bertholletia excelsa during an El Niño event in the central Amazon","authors":"Saine Leonam Kador Fortes, J. F. C. Gonçalves, K. Costa, Jussara de Souza Lopes, M. Ferreira, R. Lima, Adamir da R. Nina Junior","doi":"10.1590/1809-4392202103653","DOIUrl":"https://doi.org/10.1590/1809-4392202103653","url":null,"abstract":"ABSTRACT The most severe drought of this century in the Amazon rainforest, which was caused by El Niño, occurred from 2015 to 2016. With a focus on the ecophysiology of the regrowth of the Brazil nut tree, Bertholletia excelsa, it was investigated how the progression of the drought of 2015-2016 affected the physiological traits of the coppice regrowth of B. excelsa. The experiment was carried out in a ten-year-old plantation of Brazil nut trees, which had been subjected to thinning and coppice regrowth two years earlier. In the sprouts grown on the stumps of cut trees, the following treatments were applied: (T1) thinning to one sprout per stump; (T2) thinning to two sprouts per stump, and (T3) maintenance of three sprouts per stump. Thinning treatments did not alter the growth and ecophysiological traits of the Brazil nut tree sprouts, though the phosphorus content of the leaves was higher in T1. However, the progression of the drought in 2015-2016 negatively affected the growth (height) and gas exchange of sprouts of all treatments. In addition, an increase of around 37% was observed in the intrinsic water-use efficiency. Concerning photochemical performance, no alterations were observed. Therefore, drought stress promoted a negative effect on sprout growth and affected traits related to the photosynthesis of the B. excelsa sprouts independently of the number of sprouts per stump.","PeriodicalId":51309,"journal":{"name":"Acta Amazonica","volume":" ","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41550370","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Hotspots and hotmoments of wildlife roadkills along a main highway in a high biodiversity area in Brazilian Amazonia 巴西亚马逊地区生物多样性高的地区，主要公路沿线野生动物路杀的热点和热点时刻

IF 0.8 4区环境科学与生态学

Acta Amazonica Pub Date : 2023-03-01 DOI: 10.1590/1809-4392202201871

Lício Mota da Rocha, Clarissa Rosa, Helio Secco, E. V. Lopes

{"title":"Hotspots and hotmoments of wildlife roadkills along a main highway in a high biodiversity area in Brazilian Amazonia","authors":"Lício Mota da Rocha, Clarissa Rosa, Helio Secco, E. V. Lopes","doi":"10.1590/1809-4392202201871","DOIUrl":"https://doi.org/10.1590/1809-4392202201871","url":null,"abstract":"ABSTRACT Wildlife roadkills have become a concern in the Amazon biome due to the opening of major roads in recent decades. In this study, we aimed to describe wildlife roadkills in a 100-km stretch of the BR-163 highway, in western Pará state, determining which vertebrate groups are most affected and whether there are spatial (hotspots) and temporal (hotmoments) aggregations of roadkills. From July 2019 to June 2020, we carried out 25 surveys at 15-day intervals, from a vehicle at a maximum speed of 40 km h-1. We recorded 351 individuals at an observed rate of 0.14 ind km-1 day-1. Despite their lower detectability and faster carcass removal rate from the road due to small size, most recorded roadkills were amphibians (0.066 ind km-1 day-1). We mapped several hotspots along the study stretch considering the total number of animals recorded, and separately for amphibians and reptiles. Multiple linear regression analyses indicated that the number of roadkills of all vertebrates, amphibians and reptiles recorded are influenced by temperature and precipitation. Information on places with the highest incidence of roadkills can support actions such as the installation of underpasses and fences, aimed at reducing the impacts on wild vertebrates of this Amazonian highway.","PeriodicalId":51309,"journal":{"name":"Acta Amazonica","volume":" ","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46212877","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Stygocampsomeris manauara (Hymenoptera: Scoliidae: Scoliinae), a new scoliid from the Amazon forest 亚马逊河流域一种新的侧翅虫(膜翅目:侧翅虫科)

4区环境科学与生态学

Acta Amazonica Pub Date : 2023-01-01 DOI: 10.1590/1809-4392202300741

Ivan Fernandes GOLFETTI, Fernando Barbosa NOLL

引用次数: 0

New records for different lineages of Melastomataceae in the Brazilian Amazon 标题巴西亚马逊地区褐花蕨科不同谱系的新记录

4区环境科学与生态学

Acta Amazonica Pub Date : 2023-01-01 DOI: 10.1590/1809-4392202300472

Diego Nunes da SILVA, João Marcelo Alvarenga BRAGA, Edgar Augusto Lobato AFONSO, Sandra REINALES, Patrick de Castro CANTUÁRIA, Maria José Reis da ROCHA, Elsie Franklin GUIMARÃES, Paulo José Fernandes GUIMARÃES

{"title":"New records for different lineages of Melastomataceae in the Brazilian Amazon","authors":"Diego Nunes da SILVA, João Marcelo Alvarenga BRAGA, Edgar Augusto Lobato AFONSO, Sandra REINALES, Patrick de Castro CANTUÁRIA, Maria José Reis da ROCHA, Elsie Franklin GUIMARÃES, Paulo José Fernandes GUIMARÃES","doi":"10.1590/1809-4392202300472","DOIUrl":"https://doi.org/10.1590/1809-4392202300472","url":null,"abstract":"ABSTRACT We present novelties on the occurrence of species belonging to the tribes Marcetieae, Melastomateae and Pyxidantheae (Melastomataceae) derived from revision of herbarium material and recent collections in the Brazilian Amazon. We report the rediscovery of the type species of Comolia, known only from the original material, the first records of Appendicularia, Dicrananthera and Blakea in the states of Pará, Roraima and Rondônia, respectively, and the first record of Pterogastra in Brazil. We provide maps with the updated geographical distribution for each species based on the revision of herbarium collections available in online databases followed by manual data cleaning. Geographic location coordinates were obtained after reviewing the identities and locality information of all herbarium specimens. Most distribution records result from recent botanical expeditions within protected areas in the Brazilian Amazon. The first records of Pterogastra in Brazil expand the diversity of Melastomataceae in Brazilian flora to 59 genera. These novelties reinforce the importance of botanical expeditions throughout the Brazilian Amazon to cover the extensive spatial gaps in taxonomic knowledge in the region which should be prioritized as the focus of botanical fieldwork.","PeriodicalId":51309,"journal":{"name":"Acta Amazonica","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135660553","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Anaplastic mammary carcinoma in a captive jaguar (Panthera onca) 圈养美洲虎(Panthera onca)间变性乳腺癌的研究

4区环境科学与生态学

Acta Amazonica Pub Date : 2023-01-01 DOI: 10.1590/1809-4392202300201

Camila TOCHETTO, Guilherme Augusto MARIETTO GONÇALVES, Diogo Souza ZANONI, Renato Lemos PEREIRA, Gisele Torres Clímaco de ARAÚJO, Renan Mori ROCHA, Bruna Carolina ULSENHEIMER, Alexandre Alberto TONIN

引用次数: 0

Botanical validation of Ecclinusa (Chrysophylloideae: Sapotaceae) from forest remnants using molecular analysis as a complementary method to morphological identification 利用分子分析和形态学鉴定相结合的方法对森林残余物中槐属植物进行植物学鉴定

4区环境科学与生态学

Acta Amazonica Pub Date : 2023-01-01 DOI: 10.1590/1809-4392202202992

Shirlene Cristina Brito da SILVA, Gleiciane Rodrigues dos SANTOS, Telma Fátima Vieira BATISTA, Gracialda Costa FERREIRA, Alessandra Jackeline Guedes de MORAES, Jéssy Anni Vilhena SENADO, Victor Fernando Galvão BEZERRA, Dênmora Gomes de ARAÚJO, Selma Toyoko OHASHI, Anderson Gonçalves da SILVA

引用次数: 0

A new species with high sexual dimorphism of Xenelmis Hinton (Coleoptera: Elmidae) from Mount Roraima National Park, Brazil 文章标题巴西罗赖马山国家公园高性别二型性的小叶蝉一新种(鞘翅目:叶蝉科)

4区环境科学与生态学

Acta Amazonica Pub Date : 2023-01-01 DOI: 10.1590/1809-4392202300181

André S. FERNANDES, Maria L.S. ALMEIDA, Rafael BOLDRINI

引用次数: 0

Differentiating diversity among different land cover types in the eastern Amazon 亚马逊东部不同土地覆盖类型多样性的分异

4区环境科学与生态学

Acta Amazonica Pub Date : 2023-01-01 DOI: 10.1590/1809-4392202202951

Carlos Henrique Saraiva DIAS, Izildinha Souza MIRANDA, Igor DO VALE, Graciliano Galdino Alves SANTOS, Salustiano Vilar COSTA NETO, Luiz Gonzaga Silva COSTA

{"title":"Differentiating diversity among different land cover types in the eastern Amazon","authors":"Carlos Henrique Saraiva DIAS, Izildinha Souza MIRANDA, Igor DO VALE, Graciliano Galdino Alves SANTOS, Salustiano Vilar COSTA NETO, Luiz Gonzaga Silva COSTA","doi":"10.1590/1809-4392202202951","DOIUrl":"https://doi.org/10.1590/1809-4392202202951","url":null,"abstract":"ABSTRACT Measurements of biodiversity can be used to assess the scale of anthropogenic impact and predict species loss. A great number of diversity measures exist involving species richness and relative abundance that differ in how they are calculated. The choice of the adequate biodiversity measure to compare biological communities poses a challenge. The aim of this study was to evaluate the ability of 26 diversity measures to differentiate land cover types in the eastern Brazilian Amazon. Diversity was inventoried and quantified in three vertical strata in six locally dominant land cover types: primary and secondary forests, agroforestry systems, oil palm plantations, annual croplands and pastures. No diversity measure was able to differentiate all land cover types in every stratum. Fisher’s alpha was able to differentiate cover types in the middle and upper strata, while Smith-Wilson and Jentsch’s mixture quotient were able to differentiate in the lower and upper strata, and heterogeneity indices only differentiated in the upper stratum. The distinction and ranking of plant diversity among land covers depended on the diversity measure chosen. The number and types of land cover and vertical strata were a key factor in the ability of the diversity measure to differentiate among them.","PeriodicalId":51309,"journal":{"name":"Acta Amazonica","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135659234","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0