Gayana. Botánica最新文献_第5页

Números cromosómicos y análisis de la meiosis en tres especies de Tropaeolum (Tropaeolaceae) 三种Tropaeolum (Tropaeolaceae)的染色体数目及减数分裂分析

Gayana. Botánica Pub Date : 2019-06-01 DOI: 10.4067/s0717-66432019000100084

A. R. Andrada, V. D. L. A. Páez, E. Bulacio

引用次数: 0

Flora vascular de la Laguna Avendaño, Provincia de Diguillín, Chile 拉古纳avendano的维管植物群，diguillin省，智利

Gayana. Botánica Pub Date : 2019-06-01 DOI: 10.4067/s0717-66432019000100074

Carlos M. Baeza, Roberto Rodríguez, Oscar Toro-Núñez

引用次数: 0

Flora asociada y perspectivas de conservación para una población de Beilschmiedia berteroana (Gay) Kosterm. (Lauraceae) en un sistema agrícola de Chile central Beilschmiedia berteroana (Gay) Kosterm种群的相关植物群和保护前景。(樟科)在智利中部农业系统中的应用

Gayana. Botánica Pub Date : 2019-06-01 DOI: 10.4067/s0717-66432019000100001

César A. Sepúlveda, P. Peñailillo, D. Boshier

引用次数: 0

Naviculales (Bacillariophyta) from coastal waters of the Gulf of San Matías (Province of Río Negro, Argentina) 产自圣湾Matías (Río内格罗省，阿根廷)沿海水域的Naviculales(硅藻门)

Gayana. Botánica Pub Date : 2019-06-01 DOI: 10.4067/s0717-66432019000100061

Inés Sunesen, E. Sar

引用次数: 1

Effects of solar radiation on regeneration patterns in a Nothofagus dombeyi (Mirb.) Oerst. old-growth forest in Chile’s central-southern Andes 太阳辐射对东北野柴(Nothofagus dombeyi)再生模式的影响Oerst。智利安第斯山脉中南部的原始森林

Gayana. Botánica Pub Date : 2019-06-01 DOI: 10.4067/s0717-66432019000100012

Pamela Encina, R. Rodríguez, B. Müller-Using, P. Annighöfer, D. Leal, Katia Sáez-Carrillo, M. Sanchez-Olate

{"title":"Effects of solar radiation on regeneration patterns in a Nothofagus dombeyi (Mirb.) Oerst. old-growth forest in Chile’s central-southern Andes","authors":"Pamela Encina, R. Rodríguez, B. Müller-Using, P. Annighöfer, D. Leal, Katia Sáez-Carrillo, M. Sanchez-Olate","doi":"10.4067/s0717-66432019000100012","DOIUrl":"https://doi.org/10.4067/s0717-66432019000100012","url":null,"abstract":"Nothofagus species behave like early successional species that recolonize open sites after of regular and large-scale disturbances. This study analyzed the effects of light regimes on patterns of advanced regeneration dynamics, growth in diameter and height of Nothofagus dombeyi (Mirb.) Oerst. (Density of 240 trees ha-1, basal area of 56.7 m2 ha-1). Systematic sampling every 50 m in three stands (7.5 ha) was used. At each point and with the same center, two concentric circular plots were established, 9.0 m and 1.8 m radius. For estimate solar radiation transmissivity in plots, a solariscope hemispheric photographic camera was used. Diameters at breast height and basal areas (BA), heights (H) were measured and then counted and measured N. dombeyi seedlings and saplings. 13 saplings of advanced regeneration were harvested from all gaps to obtain age (E), total height (TH), absolute radial growth (ARG), and absolute height growth (AHG). As results, solar radiation varied between 3 and 40%. ARG varied between 1.20 and 2.22 mm yr-1 and AHG between 0.15 and 0.43 m yr-1. We found correlation for ARG and AHG with direct and global solar radiation transmissivity, but not with diffuse solar radiation transmissivity. The plant age and transmittance of direct and global solar radiation explains the increases in diameter and height. However, in our study stated that in the Andean region of south-central Chile, N. dombeyi stands is affected by small-scale disturbances. Therefore, transmissivity radiation solar inside the forest, explaining natural regeneration patterns and growth of N. dombeyi.","PeriodicalId":262382,"journal":{"name":"Gayana. Botánica","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126621703","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Parches invadidos por Ugni molinae en isla Robinson Crusoe: ¿Hay plantas nativas y endémicas capaces de vivir en ellos? 鲁滨逊·克鲁索岛上被乌尼·莫利纳入侵的斑块:是否有本地和特有的植物能够生活在它们身上?

Gayana. Botánica Pub Date : 2019-06-01 DOI: 10.4067/s0717-66432019000100126

Diego Alarcón, Patricio López-Sepúlveda, G. Fuentes, H. Montoya, P. Peñailillo, Pedro Carrasco

引用次数: 1

Nolana balsamiflua (Gaudich.) Mesa (Solanaceae), un arbusto vulnerable del desierto de Atacama dependiente de polinizadores para producir semillas Nolana balsamiflua(高迪奇)Mesa(茄科)，一种来自阿塔卡马沙漠的脆弱灌木，依赖传粉者产生种子

Gayana. Botánica Pub Date : 2019-06-01 DOI: 10.4067/s0717-66432019000100123

A. M. Humaña, Alberto Jiménez, Carlos E. Valdivia

引用次数: 0

Contribución al conocimiento de la morfología y distribución en Chile de Entomoneis paludosa (W. Smith) Reimer (Bacillariophyta) 对智利疟疾Entomoneis (W. Smith) Reimer (Bacillariophyta)形态和分布知识的贡献

Gayana. Botánica Pub Date : 2019-06-01 DOI: 10.4067/s0717-66432019000100105

P. Rivera, F. Cruces, Enrique Ascencio

引用次数: 2

Is the same pollinator species equally effective in different populations of the generalist herb Alstroemeria ligtu var. simsii? 相同的传粉者物种在通才草本植物Alstroemeria ligtu var. simsii的不同种群中是否同样有效?

Gayana. Botánica Pub Date : 2019-06-01 DOI: 10.4067/s0717-66432019000100109

M. Murúa, M. Ramirez, Alejandra V González

引用次数: 4

Browsing evidence of the native and near-threatened Pudu puda deer in restoration plantings on Chiloé Island, Chile 智利chilo<e:1>岛上恢复种植的原生和濒临灭绝的普度普达鹿的证据

Gayana. Botánica Pub Date : 2019-06-01 DOI: 10.4067/s0717-66432019000100024

A. Burger, J. Bannister, Nicole Galindo, Rodrigo Vargas-Gaete, Osvaldo Vidal, B. Schlegel

{"title":"Browsing evidence of the native and near-threatened Pudu puda deer in restoration plantings on Chiloé Island, Chile","authors":"A. Burger, J. Bannister, Nicole Galindo, Rodrigo Vargas-Gaete, Osvaldo Vidal, B. Schlegel","doi":"10.4067/s0717-66432019000100024","DOIUrl":"https://doi.org/10.4067/s0717-66432019000100024","url":null,"abstract":"Few studies have focused on the actual extent and spatial patterns of browsing in relation to forest restoration, especially when browsing is done by deer with conservation status. Here, we present data from three forest restoration experiments located in priority forests for restoration in Chiloé Island in Chile. The aim of this study is to report evidence of browsing of the southern pudu (Pudu puda), a native and Near Threatened deer species. We visually assessed browsing for all individual seedlings and calculated the average browsing extent per plot and treatment. Since pudus as well as other deer species are known to preferably feed in open spaces, we hypothesized that Pilgerodendron uviferum planted seedlings will present higher browsing rates in places with lower shrub cover (bogs) and canopy cover (upland areas) (H1). In the case of degraded North-Patagonian forests we hypothesized that Nothofagus nitida planted seedlings will present higher browsing rates in places with higher %PPFD (Photosynthetic Photon Flux Density) and/or lower residual basal area (H2). Our results indicate that browsing ranged from 9.3% up to 84.0% depending on tree species and site condition. In burned forests, browsing was significantly higher (p < 0.01) when shrubs were removed (84.0% ± 9.9) than by retaining them (68.9% ± 11.6). In degraded old-growth forests, we found significantly higher browsing in places with higher degradation (p < 0.05). Furthermore, %PPFD was significantly correlated with browsing (rho: 0.535; p < 0.01). Based on our results, forest restoration efforts in Chiloé Island will face a great challenge in balancing the protection of Near Threatened wildlife and the restoration of tree species with conservation problems, especially in open/disturbed areas, where higher browsing was found.","PeriodicalId":262382,"journal":{"name":"Gayana. Botánica","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116919172","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3