Jump to Main Content
PubAg
Main content area
Search
« Previous |
1 - 20 of 33
|
Next »
Search Results
- Author:
- Vivanco, Lucía; Austin, Amy T.
- Source:
- Forest ecology and management 2019 v.441 pp. 144-154
- ISSN:
- 0378-1127
- Subject:
- Argentina, etc ; Libocedrus; Nothofagus; anthropogenic activities; carbon; carbon cycle; climate; dry forests; forest types; lignin; magnesium; manganese; mixed forests; nitrogen; nutrients; old-growth forests; plant litter; rain; soil carbon; soil-plant interactions; species diversity; temperate forests; terrestrial ecosystems; trees; Show all 24 Subjects
- Abstract:
- ... Temperate forests play an important role in the global carbon (C) cycle. Extensive research on litter decomposition in temperate forests in the Northern Hemisphere have greatly contributed to our conceptual framework of the controls of C cycling, where climate and litter lignin/N ratio have played a dominant role. However, there is a noteworthy lack of basic information on southern temperate fores ...
- DOI:
- 10.1016/j.foreco.2019.03.019
-
https://dx.doi.org/10.1016/j.foreco.2019.03.019
- Author:
- Eizaguirre, Juan I.; Peris, David; Rodríguez, María E.; Lopes, Christian A.; De Los Ríos, Patricio; Hittinger, Chris Todd; Libkind, Diego
- Source:
- Environmental microbiology 2018 v.20 no.10 pp. 3732-3743
- ISSN:
- 1462-2912
- Subject:
- Argentina, etc ; Nothofagus; Saccharomyces; ancestry; beers; fermentation; glaciation; landscapes; phylogeography; screening; trees; yeasts; Asia; New Zealand; North America; Show all 15 Subjects
- Abstract:
- ... Saccharomyces eubayanus is the close relative of the Lager‐brewing yeast and was firstly found in North Patagonia associated with Nothofagus trees. In recent years additional strains were found in North America, Asia and New Zealand, and genomic analyses showed the existence of two main populations of this yeast, both of them present in Patagonia. Here, we performed the most comprehensive study of ...
- DOI:
- 10.1111/1462-2920.14375
-
http://dx.doi.org/10.1111/1462-2920.14375
- Author:
- Assal, Timothy J.; González, Mauro E.; Sibold, Jason S.
- Source:
- Journal of biogeography 2018 v.45 no.11 pp. 2483-2494
- ISSN:
- 0305-0270
- Subject:
- Argentina, etc ; refuge habitats; Nothofagus; topographic slope; canopy; linear models; monitoring; landscapes; tree mortality; wildfires; Araucaria; trees; stand basal area; forest damage; mortality; stand structure; forests; Chile; Andes region; Show all 19 Subjects
- Abstract:
- ... AIM: The aim of the study was to investigate postfire regeneration patterns of Araucaria‐Nothofagus forests on the west slope of the Andes; to evaluate the relationship between remotely sensed burn severity and forest mortality; and to assess controls of burn severity on forest response at local spatio‐temporal scales. LOCATION: Araucanía region in the western Andean Range of south‐central Chile w ...
- DOI:
- 10.1111/jbi.13428
-
http://dx.doi.org/10.1111/jbi.13428
- Author:
- Musotto, Lorena Laura; Borromei, Ana María; Bianchinotti, María Virginia; Coronato, Andrea; Menounos, Brian; Osborn, Gerald; Marr, Robert
- Source:
- Review of palaeobotany and palynology 2017 v.238 pp. 43-54
- ISSN:
- 0034-6667
- Subject:
- Argentina, etc ; Alternaria; Gaeumannomyces; Gelasinospora; Glomus; Microthyriaceae; Nothofagus; ascospores; climate; coasts; forest communities; forest steppe; forests; fungi; herbivores; landscapes; microfossils; paleoclimatology; paleoecology; peatlands; pollen; trees; woodlands; Show all 23 Subjects
- Abstract:
- ... We analyzed a peat-bog sequence from the central region of Tierra del Fuego, southernmost Patagonia, to reconstruct the environmental changes over the past 15,000years. Postglacial vegetation was mainly composed by grasslands and shrubby communities with sparsely distributed Nothofagus trees under dry conditions. The predominance of Glomus sp. and Gelasinospora sp. may also indicate less humid con ...
- DOI:
- 10.1016/j.revpalbo.2016.11.016
-
http://dx.doi.org/10.1016/j.revpalbo.2016.11.016
- Author:
- Fernández, Damián Andrés; Santamarina, Patricio Emmanuel; Tellería, María Cristina; Palazzesi, Luis; Barreda, Viviana Dora
- Source:
- Acta palaeobotanica 2016 v.56 no.2 pp. 223-245
- ISSN:
- 2082-0259
- Subject:
- Argentina, etc ; Nothofagus; fossils; light microscopy; phylogeny; pollen; scanning electron microscopy; sediments; transmission electron microscopy; trees; Antarctica; Australia; New Zealand; Show all 13 Subjects
- Abstract:
- ... Nothofagaceae (southern beeches) are a relatively small flowering plant family of trees confined to the Southern Hemisphere. The fossil record of the family is abundant and it has been widely used as a test case for the classic hypothesis that Antarctica, Patagonia, Australia and New Zealand were once joined together. Although the phylogenetic relationships in Nothofagus appear to be well supporte ...
- DOI:
- 10.1515/acpa-2016-0017
-
http://dx.doi.org/10.1515/acpa-2016-0017
- Author:
- Soler, R.M.; Schindler, S.; Lencinas, M.V.; Peri, P.L.; Pastur, G. Martínez
- Source:
- The international forestry review 2015 v.17 no.2 pp. 231-243
- ISSN:
- 1465-5489
- Subject:
- Argentina, etc ; Nothofagus; biodiversity; environmental impact; forestry; forests; harvesting; microclimate; monitoring; reproduction; trees; Show all 11 Subjects
- Abstract:
- ... SUMMARYHarvesting with variable retention (VR) applied in Nothofagus forests combines two types of retention: patches of original forest (aggregates) and single isolated homogeneously distributed trees (dispersed). This study assesses the assumption that VR maintains mature forests conditions after harvesting by synthesizing 605 individual results from long-term studies in two regions of Tierra de ...
- DOI:
- 10.1505/146554815815500589
-
http://dx.doi.org/10.1505%2F146554815815500589
- Author:
- Vidal-Russell, Romina; Premoli, Andrea C.
- Source:
- Australian journal of botany 2015 v.63 no.6 pp. 541-548
- ISSN:
- 0067-1924
- Subject:
- Argentina, etc ; Misodendrum; Nothofagus; alleles; allozymes; forests; genotype; host preferences; multidimensional scaling; trees; Chile; Show all 11 Subjects
- Abstract:
- ... Nothofagus trees host Misodendrum, an endemic mistletoe of the subantarctic forests of Chile and Argentina. Differences in the infection intensity on a given host and patches of infected trees are observed within the forest. We used allozymes to test for genetic differences between uninfected and infected Nothofagus trees (Nothofagus antarctica (G. Forst.) Oerst.) by two species of Misodendrum (Mi ...
- DOI:
- 10.1071/BT14306
-
http://dx.doi.org/10.1071/BT14306
- Author:
- Musotto, Lorena Laura; Borromei, Ana María; Bianchinotti, María Virginia; Coronato, Andrea
- Source:
- Quaternary international 2017 v.442 pp. 13-25
- ISSN:
- 1040-6182
- Subject:
- Argentina, etc ; Glomus; Microthyriaceae; Nothofagus; bogs; climate; ecosystems; epiphytes; forest steppe; forests; fungi; lakes; landscapes; multivariate analysis; paleoecology; palynology; peatlands; pollen; radiocarbon dating; shrubs; trees; wet environmental conditions; Andes region; Show all 23 Subjects
- Abstract:
- ... This paper presents the main palaeoenvironmental results obtained from two sites located in the eastern (La Correntina peat bog) and southern (Terra Australis peat bog) sectors of the Lake Fagnano area, situated at 54° S on the Tierra del Fuego island, at the southernmost extreme of Patagonia. Here, we provide an overview of the postglacial ecosystem and vegetation dynamics on both slopes of the F ...
- DOI:
- 10.1016/j.quaint.2016.01.071
-
http://dx.doi.org/10.1016/j.quaint.2016.01.071
- Author:
- Westbrook, Cherie J.; Cooper, David J.; Anderson, Christopher B.
- Source:
- The Science of the total environment 2017 v.574 pp. 183-190
- ISSN:
- 0048-9697
- Subject:
- Argentina, etc ; Castor canadensis; Cyperaceae; Nothofagus; aquatic habitat; branches; ecological restoration; ecosystems; environmental impact; fur-bearing animals; introduced plants; invasive species; landscapes; meadows; mosses and liverworts; peat; reforestation; riparian areas; riparian forests; sediments; streams; trees; Show all 22 Subjects
- Abstract:
- ... The North American beaver (Castor canadensis) is an invasive species in southern Patagonia, introduced in 1946 as part of a program by the Argentine government to augment furbearers. Research focus has turned from inventorying the beaver's population and ecosystem impacts toward eradicating it from the region and restoring degraded areas. Successful restoration, however, requires a fuller determin ...
- DOI:
- 10.1016/j.scitotenv.2016.09.045
-
http://dx.doi.org/10.1016/j.scitotenv.2016.09.045
- Author:
- Guerrido, Claudia M; Villalba, Ricardo; Rojas, Facundo
- ISSN:
- 1477-0911
- Subject:
- Argentina, etc ; Nothofagus; coasts; dams (hydrology); dead wood; forests; glaciers; growth rings; ice; photographs; shorelines; trees; Show all 12 Subjects
- Abstract:
- ... Glaciar Perito Moreno (hereafter GPM; 50°30′S and 72°50′W) is a major outlet glacier from the South Patagonia Icefield. In contrast to most Patagonian glaciers, glaciological studies indicate that GPM has been advancing or remained stable during the 20th century. The advances periodically block Canal de los Témpanos creating an ice dam that impounds Brazo Sur–Rico arms of Lago Argentino, raising t ...
- DOI:
- 10.1177/0959683614551215
-
http://dx.doi.org/10.1177/0959683614551215
- Author:
- Taylor, Kimberley T.; Maxwell, Bruce D.; Pauchard, Aníbal; Nuñez, Martin A.; Peltzer, Duane A.; Terwei, André; Rew, Lisa J.
- Source:
- Global ecology and biogeography 2016 v.25 no.1 pp. 96-106
- ISSN:
- 1466-822X
- Subject:
- Argentina, etc ; Nothofagus; Pinus contorta; colonizing ability; ecological invasion; ecoregions; ecosystems; forests; grasslands; indigenous species; introduced species; invasive species; population growth; shrublands; tree growth; trees; Chile; New Zealand; United States; Show all 19 Subjects
- Abstract:
- ... AIM: To determine biotic and abiotic controls on pine invasion globally within six ecoregions that include both introduced and native ranges. LOCATIONS: Río Negro province, Argentina; Aysén and Araucanía regions, Chile; South Island (two ecoregions), New Zealand; Greater Yellowstone ecosystem, USA. METHODS: We quantified tree abundance and size across invasion fronts of the widespread invasive tre ...
- DOI:
- 10.1111/geb.12391
-
http://dx.doi.org/10.1111/geb.12391
- Author:
- Fernández, Natalia V.; Marchelli, Paula; Gherghel, Felicia; Kost, Gerhard; Fontenla, Sonia B.
- Source:
- Fungal ecology 2015 v.18 pp. 36-47
- ISSN:
- 1754-5048
- Subject:
- Argentina, etc ; Cortinariaceae; Nothofagus; Tricholomataceae; autumn; domestication; ecosystems; ectomycorrhizae; endophytes; forest management; forests; fungal communities; mycorrhizal fungi; plant age; roots; species diversity; species identification; trees; vesicular arbuscular mycorrhizae; Show all 19 Subjects
- Abstract:
- ... Due to its overexploitation during the past century, Nothofagus nervosa is currently included in conservation and domestication programs, in which ectomycorrhizas play an important role. We aimed to describe the abundance and diversity of ectomycorrhizal fungi (EcMF) in both domesticated and naturally established N. nervosa specimens, and to analyse the influence of age, seasonality and forest man ...
- DOI:
- 10.1016/j.funeco.2015.05.011
-
https://dx.doi.org/10.1016/j.funeco.2015.05.011
- Author:
- Soler, Rosina; Pastur, Guillermo Martínez; Lencinas, María Vanessa; Peri, Pablo Luis
- Source:
- Acta oecologica 2015 v.68 pp. 11-17
- ISSN:
- 1146-609X
- Subject:
- Argentina, etc ; Misodendrum; Nothofagus; Usnea; autumn; biogeochemical cycles; biomass; canopy; epiphytes; forest types; growing season; lichens; second growth; spring; summer; traps; tree crown; trees; Show all 18 Subjects
- Abstract:
- ... Litter input is one of the key components that define nutrient cycling in forests and the majority of studies only consider the tree components of litterfall. However, epiphytic species can play a crucial role in litter input throughout the growing season. This work evaluates changes in litter production by mistletoe (Misodendrum sp.) and epiphytic lichen (Usnea sp.), related to crown cover in mat ...
- DOI:
- 10.1016/j.actao.2015.06.005
-
http://dx.doi.org/10.1016/j.actao.2015.06.005
- Author:
- Cavallero, L.; López, D.R.; Raffaele, E.; Aizen, M.A.
- Source:
- Ecological indicators 2015 v.52 pp. 85-95
- ISSN:
- 1470-160X
- Subject:
- Argentina, etc ; Libocedrus chilensis; Nothofagus; air temperature; chronosequences; environmental factors; forest communities; forests; livestock; logging; relative humidity; seedlings; solar radiation; sustainable forestry; trees; woody plants; Show all 16 Subjects
- Abstract:
- ... The disruption of the natural post-disturbance recovery process, either by changes in disturbance regime or by another disturbance, can trigger transitions to alternative degraded states. In a scenario of high disturbance pressure on ecological systems, it is essential to detect recovery indicators to define the period when the system needs more protection as well as the period when the system sup ...
- DOI:
- 10.1016/j.ecolind.2014.11.019
-
https://dx.doi.org/10.1016/j.ecolind.2014.11.019
- Author:
- Rodríguez, M. Eugenia; Pérez‐Través, Laura; Sangorrín, Marcela P.; Barrio, Eladio; Lopes, Christian A.
- Source:
- FEMS yeast research 2014 v.14 no.6 pp. 948-965
- ISSN:
- 1567-1356
- Subject:
- Argentina, etc ; Nothofagus; fermentation; Araucaria araucana; hybrids; Hanseniaspora uvarum; seeds; evolution; yeasts; ecology; Saccharomyces cerevisiae; trees; Saccharomyces bayanus; bark; beverages; Show all 15 Subjects
- Abstract:
- ... Mudai is a traditional fermented beverage, made from the seeds of the Araucaria araucana tree by Mapuche communities. The main goal of the present study was to identify and characterize the yeast microbiota responsible of Mudai fermentation as well as from A. araucana seeds and bark from different locations in Northern Patagonia. Only Hanseniaspora uvarum and a commercial bakery strain of Saccharo ...
- DOI:
- 10.1111/1567-1364.12183
-
http://dx.doi.org/10.1111/1567-1364.12183
- Author:
- Agüero, Mariana Laura; Puntieri, Javier; Mazzarino, María Julia; Grosfeld, Javier; Barroetaveña, Carolina
- Source:
- Trees 2014 v.28 no.4 pp. 1185-1195
- ISSN:
- 0931-1890
- Subject:
- Argentina, etc ; ectomycorrhizae; Nothofagus; resorption; plant architecture; stems; seedlings; shoots; greenhouse experimentation; soil; trees; growing season; root growth; roots; leaves; forests; Show all 16 Subjects
- Abstract:
- ... KEY MESSAGE : As in mature forests, seedlings responded positively to N supply in terms of mass and architecture, especially N. obliqua . P became a secondary-limiting nutrient for N. nervosa with increased N addition. Previous studies on mature forests of NW Argentinean Patagonia indicated that N is the main growth-limiting nutrient in most dominant tree species, while P limitation is uncommon, d ...
- DOI:
- 10.1007/s00468-014-1029-7
-
http://dx.doi.org/10.1007/s00468-014-1029-7
- Author:
- Pfautsch, Sebastian; Peri, Pablo L.; Macfarlane, Craig; van Ogtrop, Floris; Adams, Mark A.
- Source:
- Trees 2014 v.28 no.1 pp. 125-136
- ISSN:
- 0931-1890
- Subject:
- Argentina, etc ; Nothofagus; ecosystems; forests; latitude; leaf area; rain; sapwood; stand structure; steppes; transpiration; trees; wind speed; Andes region; Show all 14 Subjects
- Abstract:
- ... KEY MESSAGE : This study is the first to quantify tree water use below 50°S. Tree morphology differs markedly among the two investigated species, reflecting adjustment to different environmental cues. A pronounced environmental gradient dictates the dominance of Nothofagus in the foothills on the eastern side of the Andes Mountains in Patagonia, Argentina. Below 50° southern latitude, open forests ...
- DOI:
- 10.1007/s00468-013-0935-4
-
http://dx.doi.org/10.1007/s00468-013-0935-4
- Author:
- Marchelli, Paula; Smouse, Peter E.; Gallo, Leonardo A.
- Source:
- Tree genetics & genomes 2012 v.8 no.5 pp. 1123-1134
- ISSN:
- 1614-2942
- Subject:
- Argentina, etc ; Fagus; Nothofagus; inbreeding; mothers; outcrossing; paternity; pollen; pollen flow; probability; progeny; selfing; trees; Show all 13 Subjects
- Abstract:
- ... The mating system (outcrossing, selfing, and biparental inbreeding) and the extent of pollen flow are two of the most important genetic features that determine the genetic structure of plant populations, and both are crucial for the design of conservation strategies. The objectives here were to estimate mating system parameters and to fit the pollen dispersal kernel for the southern beech, Nothofa ...
- DOI:
- 10.1007/s11295-012-0500-0
-
http://dx.doi.org/10.1007/s11295-012-0500-0
- Author:
- Bahamonde, Héctor A.; Peri, P. L.; Alvarez, R.; Barneix, A.; Moretto, A.; Martínez Pastur, G.
- Source:
- Agroforestry systems 2012 v.84 no.3 pp. 345-360
- ISSN:
- 0167-4366
- Subject:
- Argentina, etc ; Nothofagus; environmental factors; forests; grasses; leaves; mineralization; nutrients; organic matter; tree release; trees; Show all 11 Subjects
- Abstract:
- ... The role of environmental variables on litter decomposition and its nutrient release in Nothofagus antarctica forest in Patagonia is poorly understood. Moreover, in these forests under silvopastoral use there are few antecedents. Litter decomposition and nutrient release of grasses and tree leaves were evaluated under different crown cover and two site quality stands during 480 days. Organic matte ...
- DOI:
- 10.1007/s10457-012-9479-7
-
http://dx.doi.org/10.1007/s10457-012-9479-7
- Author:
- Gargaglione, Verónica; Peri, Pablo L.; Rubio, Gerardo
- Source:
- Agroforestry systems 2014 v.88 no.5 pp. 779-790
- ISSN:
- 0167-4366
- Subject:
- Argentina, etc ; Nothofagus; absorption; branches; environmental factors; fine roots; forage; forests; grasses; growing season; nitrogen; nitrogen fertilizers; sapwood; silvopastoral systems; soil; soil microorganisms; spring; trees; Show all 18 Subjects
- Abstract:
- ... Nothofagus antarctica forests in south Patagonia are usually used as silvopastoral systems but how grasses and trees compete for specific resources, such as nitrogen in these systems is unknown. To understand interactions between grasses and N. antarctica trees for N, an experiment with¹⁵N labeled fertilizer was carried out comparing N absorption by grasses growing under trees (silvopastoral syste ...
- DOI:
- 10.1007/s10457-014-9724-3
-
http://dx.doi.org/10.1007/s10457-014-9724-3