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Cenozoic woods from Termas de Río Hondo, Santiago del Estero, Argentina 阿根廷圣地亚哥德尔埃斯特罗里约洪多温泉中的新生代森林
Q3 Agricultural and Biological Sciences Pub Date : 2019-01-01 DOI: 10.22179/REVMACN.21.621
R. Martinez, A. Crisafulli
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引用次数: 4
A late Furongian trilobite assemblage from the eastern Cordillera Oriental (Santa Rosita Formation; Jujuy, Argentina) and its biostratigraphic significance 东科迪勒拉东部晚芙蓉期三叶虫组合(Santa Rosita组;Jujuy,阿根廷)及其生物地层学意义
Q3 Agricultural and Biological Sciences Pub Date : 2018-12-06 DOI: 10.22179/REVMACN.20.601
Franco Tortello, F. J. Zeballo, Daniela S. Monti
The trilobite Parabolina frequens argentina Zone is widely represented in the upper Furongian of northwestern Argentina. A fossil assemblage from the lower Santa Rosita Formation at Quebrada de Abra Blanca, Jujuy Province, is described herein. Parabolina frequens argentina (Kayser) and Parabolinella coelatifrons Harrington & Leanza have previously been reported from other localities of the biozone, whereas Lotagnostus hedini (Troedsson) is here described from South America for the first time. The latter provides high resolution data on the age of the P . frequens argentina Zone in the eastern Cordillera Oriental, where conodont-bearing strata have not been found yet. L . hedini exhibits a short biostratigraphic range, restricted to the latest Furongian of China (Xinjiang, Bulbolenus Zone; western Zhejiang, Lotagnostus hedini Zone), Kazakhstan ( Euloma limitaris - Taoyuania Zone) and ?Canada (western Newfoundland, Phylacterus saylesi Fauna). In China and Kazakhstan, it occurs in association with, or a few meters below, the first appearance of the conodont Cordylodus proavus ; a fact that increases the potential for global correlation.
阿根廷三叶虫Parabolina带广泛分布于阿根廷西北部的芙蓉阶上游。本文描述了Jujuy省Quebrada de Abra Blanca下Santa Rosita组的化石组合。Parabolina frequens argentina(Kayser)和Paraboliella coelatifrons Harrington&Leanza之前曾在生物区的其他地区报道过,而Lotagnostus hedini(Troedsson)在这里首次在南美洲报道。后者提供了关于P年龄的高分辨率数据。frequens阿根廷带位于科迪勒拉东部,那里尚未发现含牙形刺的地层。L赫迪尼生物地层范围较短,仅限于中国最新的芙蓉期(新疆,布尔博勒努斯带;浙江西部,洛塔尼斯图斯-赫迪尼带)、哈萨克斯坦(尤洛马限制区-桃源尼亚带)和?加拿大(纽芬兰西部,Phylacterus saylesi Fauna)。在中国和哈萨克斯坦,它与原牙形石的首次出现有关,或在几米以下出现;这一事实增加了全球相关性的可能性。
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引用次数: 4
Avifaunal inventory of northern Entre Ríos, Argentina: noteworthy records and conservation prospects 阿根廷中部北部鸟类物种清查Ríos:值得注意的记录和保护前景
Q3 Agricultural and Biological Sciences Pub Date : 2018-12-05 DOI: 10.22179/REVMACN.20.577
S. Dardanelli, C. F. Reales, J. A. Sarquis
Biodiversity inventories remain fundamental tools for biodiversity conservation. Neotropical biota has poor faunal inventories. In Argentina, the avifauna of the province of Entre Rios is still not well known. Here, we present the first exhaustive bird inventory of Northern Entre Rios. We recorded 317 bird species. Three species were new for the province of Entre Rios and eight were new for Northern Entre Rios. We recorded 17 threatened species, 4 biome-restricted species and two restricted range species. The high bird diversity of Northern Entre Rios contrasts with the lack of effective reserves to ensure the survival of endangered species. Creation of natural reserves in this area is urgent. These protected areas should have a management plan and stable park rangers assigned, to ensure the protection of the avian diversity of Northern Entre Rios.
生物多样性清单仍然是保护生物多样性的基本工具。新热带生物区系的动物群数量很少。在阿根廷,恩特雷里奥斯省的鸟类仍然不为人所知。在这里,我们介绍了恩特雷里奥斯北部的第一份详尽的鸟类名录。我们记录了317种鸟类。三个物种是恩特雷里奥斯省的新物种,八个是恩特雷里奥斯北部的新物种。我们记录了17种受威胁物种,4种生物群落限制物种和2种限制范围物种。恩特雷里奥斯北部的鸟类多样性很高,而缺乏有效的保护区来确保濒危物种的生存。在这个地区建立自然保护区是当务之急。这些保护区应该有一个管理计划和稳定的公园护林员,以确保保护北恩特雷里奥斯的鸟类多样性。
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引用次数: 5
Ascidiacea (Chordata, Tunicata) from Uruguay (SW Atlantic): Checklist and zoogeographic considerations 来自乌拉圭(西南大西洋)的海鞘科(脊索科,海鞘科):检查表和动物地理学考虑
Q3 Agricultural and Biological Sciences Pub Date : 2018-12-01 DOI: 10.22179/revmacn.20.589
F. Scarabino, T. Maggioni, A. Taverna, C. Lagger, E. Schwindt, L. Orensanz, Guzmán López, L. Ortega, F. Rodríguez, M. Tatián
Fil: Fabrizio Scarabino. Centro Universitario Regional del Este - CURE, Universidad de la Republica y Museo Nacional de Historia Natural, Montevideo, ; Uruguay
纱线:法布里齐奥·斯卡拉比诺。蒙得维的亚共和国大学东部区域大学中心- CURE和国家自然历史博物馆;乌拉圭
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引用次数: 4
Craniometrical differentiation of gray brocket deer species from Brazil 巴西灰小鹿种的颅部分异
Q3 Agricultural and Biological Sciences Pub Date : 2018-06-12 DOI: 10.22179/REVMACN.20.561
S. González, A. M. Mantellatto, J. Duarte
El genero Mazama tiene una amplia distribucion en la region Neotropical y una exitosa radiacion adaptativa, sin embargo la taxonomia y sistematica de las especies y subespecies aun es motivo de controversias. El objetivo  de este estudio craneometrico comparativo entre M. gouazoubira y M. nemorivaga fue la de analizar los ejemplares depositados en las colecciones de los museos de Brasil con el fin de caracterizar estas especies cripticas.  Efectuamos 36 medidas en  86 craneos de ejemplares adultos procedentes de Brasil.  Realizamos la estadistica descriptiva con la cual comprobamos que en la mayoria de las medidas craneanas de los ejemplares machos y hembras de  M. gouazoubira fueron un 5% mas grande. La excepcion fueron 3 medidas que presentaron mayor tamano en los ejemplares machos y hembras de M. nemorivaga . Este estudio permitio  mediante los analisis multivariados de ANOVA y de Funcion Discriminante mostrar que existen diferencias significativas entre las dos taxa que validan la distincion de ambas especies. Para examinar con mas detalles la dinamica de la variacion de estos dos taxa es necesario aumentar el tamano de la muestra para poder analizar en el contexto  geografico y genetico para poder determinar unidades prioritarias para la  conservacion.
Mazama属在新热带地区分布广泛,具有成功的适应性辐射,但物种和亚种的分类和系统学仍然存在争议。这项比较颅测量学研究的目的是分析存放在巴西博物馆藏品中的标本,以表征这些隐秘物种。我们对来自巴西的86具成年标本的头骨进行了36次测量。我们进行了描述性统计,发现在大多数雄性和雌性M.Gouazoubira标本的头骨测量中,它们大了5%。例外情况是3项措施,在Nemorivaga M的雄性和雌性标本中表现出更大的大小。这项研究通过方差分析和判别函数的多元分析表明,这两个分类群之间存在显著差异,证实了这两个物种的区别。为了更详细地研究这两个分类群的颜色动态,有必要增加样本量,以便能够在地理和遗传背景下进行分析,以确定保护的优先单位。
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引用次数: 13
The enigma of the Yepes’ armadillo: Dasypus mazzai, D. novemcinctus or D. yepesi? Yepes犰狳之谜:Dasypus mazzai, D. novemcintus还是D. yepesi?
Q3 Agricultural and Biological Sciences Pub Date : 2018-06-12 DOI: 10.22179/REVMACN.20.578
A. Abba, G. Cassini, J. I. Túnez, S. Vizcaino
Las mulitas del genero Dasypus , representan el genero mas rico (siete especies) y ampliamente distribuido de los xenartros actuales. En 1933 el destacado mastozoologo Jose V. Yepes estudio los especimenes colectados por Salvador Mazza y nomino una nueva especie: D. mazzai . Varios autores interpretaron que el holotipo era un ejemplar juvenil de D. novemcinctus . En 1995, Vizcaino acepto la sinonimia con D. novemcinctus , pero reconocio la existencia de una especie endemica del noroeste de Argentina que dedico a Yepes ( D. yepesi ) . La secuenciacion del mitogenoma de ejemplares del hipodigma de D. mazzai y estudios morfologicos han cuestionado la sinonimia de esta especie con D. novencinctus . En esta contribucion se reviso la identidad del material tipo secuenciando un fragmento de DNA de 212 bp, producto de la unidad ribosomal 16S de Dasypodidae. Ambas muestras del holotipo (hueso y musculo) y de un especimen del norte de Santa Fe presentan 100% de similitud con secuencias de D. yepesi / D. sabanicola disponibles en el GenBank. Los resultados indican que el ejemplar tipo de D. mazzai no es un juvenil de D. novemcinctus ni de otra de las especies del genero Dasypus previamente nominadas. Se revalida D. mazzai y se confirma el limite oriental, de su distribucion en la region chaquena. Se requieren trabajos de campo para confirmar el estado de conservacion y el rango de distribucion actual de la especie.
在过去的几十年里,这些物种的分布发生了巨大的变化。1933年,著名的哺乳动物学家Jose V. Yepes研究了萨尔瓦多·马扎收集的标本,并提名了一个新物种:D. mazzai。一些作者将全型解释为D. novemcinctus的幼年标本。1995年,Vizcaino接受了D. novemcinctus的同义词,但承认存在一种阿根廷西北部特有的物种,他将其献给了Yepes (D. yepesi)。对D. mazzai下颌标本的有丝分裂基因组测序和形态学研究对该物种与D. novencinctus的同义词提出了质疑。本文通过对Dasypodidae 16S核糖体单元的212 bp DNA片段进行测序,回顾了该类型材料的身份。全型标本(骨骼和肌肉)和来自圣达菲北部的一个标本与GenBank上的D. yepesi / D. sabanicola序列具有100%的相似性。结果表明,D. mazzai的模式标本既不是D. novemcinctus的幼年标本,也不是之前提名的Dasypus属的其他物种。本研究的目的是确定其分布的东部界限,并确定其分布在chaquena地区。为了确定该物种的保护状况和目前的分布范围,需要进行实地调查。
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引用次数: 3
Geographical distribution of Corydoras micracanthus Regan 1912 (Siluriformes: Callichthyidae), with comments on its behavior and type locality. micracanthus Regan 1912的地理分布(siluriforma: Callichthyidae),并对其行为和类型定位的评论。
Q3 Agricultural and Biological Sciences Pub Date : 2018-06-04 DOI: 10.22179/REVMACN.20.564
F. Alonso, Guillermo E. Terán, P. Calviño, G. Aguilera, J. M. Mirande
En este articulo presentamos nuevos registros de Corydoras micracanthus en la cuenca del rio Bermejo, confirmamos la presencia de esta especie, en la provincia de Jujuy, en base a material depositado y confirmamos su localidad tipo en Lesser, Salta, luego de obtener nuevos datos de la bibliografia sobre las localidades de colecta de Alfredo Borelli, colector de los ejemplares tipos. Comentarios adicionales sobre la ecologia y el estado de conservacion de esta especie son provistos.
在这篇文章中,我们介绍了Bermejo河流域的新记录,根据沉积的材料确认了该物种在Jujuy省的存在,并在获得了关于标本收藏家Alfredo Borelli收藏地点的新书目数据后,确认了其在Lesser,Salta的类型地点。还对该物种的生态和保护状况发表了补充评论。
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引用次数: 0
Germinability and antioxidant metabolism in Passiflora caerulea L. seeds exposed to salt stress 盐胁迫下西番莲种子萌发和抗氧化代谢的研究
Q3 Agricultural and Biological Sciences Pub Date : 2018-05-31 DOI: 10.22179/REVMACN.20.563
J. Chaín, H. F. Causin
P . caerulea is the Passiflora species with the widest distribution in Argentina. Despite the need to cultivate it to decrease the extraction impact on its natural populations, the information on how environmental factors affect seed germinability is scarce. In order to evaluate the greminative response and the role of the antioxidant metabolism against saline stress, freshly collected seeds were germinated in the presence of 0 (control), 30, 60 or 90 mM NaCl. The percentage of germination, the content of soluble and carbonylated proteins, the activity of antioxidant enzymes and the generation of reactive oxygen species both in the pre-germination phase and during germination were evaluated. The removal of the aryl and the micropillar integument after 3 h imbibition proved to induce a rapid germination and activation of the enzymes catalase, glutathione S-transferase and peroxidases, together with an increase and a decrease in the generation of O 2 .- and H 2 O 2 , respectively, at the root apex. Even though the germination and activity of some of the studied enzymes decreased with the increase in external NaCl levels, when comparing populations of the control and 90 mM NaCl treatments having similar germination percentages, a marked induction of peroxidase activity was observed in the latter group. The proportion of carbonylated proteins did not differ among treatments, which suggests that, despite this species cannot be considered as halo-tolerant, the fact that the antioxidant metabolism efficiently contributed to prevent oxidative damage to the proteome may constitute an important mechanism to facilitate its establishment in environments with moderate salinity.
P银合欢是阿根廷分布最广的西番莲属植物。尽管需要对其进行培养以减少提取对其自然种群的影响,但关于环境因素如何影响种子发芽性的信息很少。为了评估排泄反应和抗氧化代谢对盐水胁迫的作用,在0(对照)、30、60或90mM NaCl存在下使新鲜收集的种子发芽。对发芽前和发芽过程中的发芽率、可溶性蛋白和羰基化蛋白的含量、抗氧化酶的活性和活性氧的产生进行了评估。吸胀3h后,芳基和微柱珠被的去除被证明能诱导过氧化氢酶、谷胱甘肽S-转移酶和过氧化物酶的快速发芽和活化,同时增加和减少O2的产生和H2 O2。尽管一些研究的酶的发芽和活性随着外部NaCl水平的增加而降低,但当比较具有相似发芽百分比的对照和90mM NaCl处理的群体时,在后一组中观察到过氧化物酶活性的显著诱导。羰基化蛋白质的比例在不同的处理中没有差异,这表明,尽管该物种不能被认为是耐晕的,但抗氧化代谢有效地防止了蛋白质组的氧化损伤,这一事实可能构成了一个重要机制,有助于在中等盐度的环境中建立蛋白质组。
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引用次数: 0
Siraty, a new fossiliferous locality with woods and stipes of the Tacuary Formation (upper Permian), Paraguay Siraty,巴拉圭上二叠纪Tacuary组的树木和茎的一个新的化石地点
Q3 Agricultural and Biological Sciences Pub Date : 2018-01-01 DOI: 10.22179/REVMACN.20.592
Laura Vallejos Leiz, A. Crisafulli
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引用次数: 0
New geographic distribution records for ten species of sigmodontine rodents (Rodentia: Cricetidae) from Northwestern Argentina 标题阿根廷西北部10种斑齿目啮齿动物地理分布新记录(啮齿目:蟋蟀科)
Q3 Agricultural and Biological Sciences Pub Date : 2018-01-01 DOI: 10.22179/REVMACN.20.571
P. Jayat, P. Ortiz, G. D’Elía, P. Teta, R. González
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引用次数: 1
期刊
Revista del Museo Argentino de Ciencias Naturales, Nueva Serie
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