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  1. Article: Untangling the importance of niche breadth and niche position as drivers of tree species abundance and occupancy across biogeographic regions

    Vela Díaz, Dilys M / Blundo, Cecilia / Cayola, Leslie / Fuentes, Alfredo F / Malizia, Lucio R / Myers, Jonathan A

    Global ecology and biogeography. 2020 Sept., v. 29, no. 9

    2020  

    Abstract: AIM: Ecological niches shape species commonness and rarity, yet, the relative importance of different niche mechanisms within and across ecosystems remains unresolved. We tested the influence of niche breadth (range of environmental conditions where ... ...

    Abstract AIM: Ecological niches shape species commonness and rarity, yet, the relative importance of different niche mechanisms within and across ecosystems remains unresolved. We tested the influence of niche breadth (range of environmental conditions where species occur) and niche position (marginality of a species’ environmental distribution relative to the mean environmental conditions of a region) on tree‐species abundance and occupancy across three biogeographic regions. LOCATION: Argentinian Andes; Bolivian Amazon; Missouri Ozarks. TIME PERIOD: 2002–2010. MAJOR TAXA STUDIED: Trees. METHODS: We calculated abiotic‐niche breadths and abiotic‐niche positions using 16 climate, soil and topographic variables. For each region, we used model selection to test the relative influence of niche breadth and niche position on local abundance and occupancy in regional‐scale networks of 0.1‐ha forest plots. To account for species–environment associations caused by other mechanisms (e.g., dispersal), we used null models that randomized associations between species occurrences and environmental variables. RESULTS: We found strong support for the niche‐position hypothesis. In all regions, species with higher local abundance and occupancy occurred in non‐marginal environments. Observed relationships between occupancy and niche position also differed from random species–environment associations in all regions. Surprisingly, we found little support for the niche‐breadth hypothesis. Observed relationships between both local abundance and niche breadth, and occupancy and niche breadth, did not differ from random species–environment associations. MAIN CONCLUSION: Niche position was more important than niche breadth in shaping species commonness and rarity across temperate, sub‐tropical and tropical forests. In all forests, tree species with widespread geographic distributions were associated with environmental conditions commonly found throughout the region, suggesting that niche position has similar effects on species occupancy across contrasting biogeographic regions. Our findings imply that conservation efforts aimed at protecting populations of common and rare tree species should prioritize conservation of both common and rare habitats.
    Keywords climate ; ecosystems ; environmental factors ; geographical distribution ; meta-analysis ; models ; niches ; rare species ; soil ; species abundance ; topography ; trees ; tropical forests ; Amazonia ; Andes region ; Argentina ; Bolivia ; Missouri ; Ozarks
    Language English
    Dates of publication 2020-09
    Size p. 1542-1553.
    Publishing place John Wiley & Sons, Ltd
    Document type Article
    Note JOURNAL ARTICLE
    ZDB-ID 2021283-5
    ISSN 1466-8238 ; 1466-822X ; 0960-7447
    ISSN (online) 1466-8238
    ISSN 1466-822X ; 0960-7447
    DOI 10.1111/geb.13139
    Database NAL-Catalogue (AGRICOLA)

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  2. Article: Historical Assembly of Andean Tree Communities.

    González-Caro, Sebastián / Tello, J Sebastián / Myers, Jonathan A / Feeley, Kenneth / Blundo, Cecilia / Calderón-Loor, Marco / Carilla, Julieta / Cayola, Leslie / Cuesta, Francisco / Farfán, William / Fuentes, Alfredo F / Garcia-Cabrera, Karina / Grau, Ricardo / Idarraga, Álvaro / Loza, M Isabel / Malhi, Yadvinder / Malizia, Agustina / Malizia, Lucio / Osinaga-Acosta, Oriana /
    Pinto, Esteban / Salinas, Norma / Silman, Miles / Terán-Valdéz, Andrea / Duque, Álvaro

    Plants (Basel, Switzerland)

    2023  Volume 12, Issue 20

    Abstract: Patterns of species diversity have been associated with changes in climate across latitude and elevation. However, the ecological and evolutionary mechanisms underlying these relationships are still actively debated. Here, we present a complementary view ...

    Abstract Patterns of species diversity have been associated with changes in climate across latitude and elevation. However, the ecological and evolutionary mechanisms underlying these relationships are still actively debated. Here, we present a complementary view of the well-known tropical niche conservatism (TNC) hypothesis, termed the multiple zones of origin (MZO) hypothesis, to explore mechanisms underlying latitudinal and elevational gradients of phylogenetic diversity in tree communities. The TNC hypothesis posits that most lineages originate in warmer, wetter, and less seasonal environments in the tropics and rarely colonize colder, drier, and more seasonal environments outside of the tropical lowlands, leading to higher phylogenetic diversity at lower latitudes and elevations. In contrast, the MZO hypothesis posits that lineages also originate in temperate environments and readily colonize similar environments in the tropical highlands, leading to lower phylogenetic diversity at lower latitudes and elevations. We tested these phylogenetic predictions using a combination of computer simulations and empirical analyses of tree communities in 245 forest plots located in six countries across the tropical and subtropical Andes. We estimated the phylogenetic diversity for each plot and regressed it against elevation and latitude. Our simulated and empirical results provide strong support for the MZO hypothesis. Phylogenetic diversity among co-occurring tree species increased with both latitude and elevation, suggesting an important influence on the historical dispersal of lineages with temperate origins into the tropical highlands. The mixing of different floras was likely favored by the formation of climatically suitable corridors for plant migration due to the Andean uplift. Accounting for the evolutionary history of plant communities helps to advance our knowledge of the drivers of tree community assembly along complex climatic gradients, and thus their likely responses to modern anthropogenic climate change.
    Language English
    Publishing date 2023-10-12
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2704341-1
    ISSN 2223-7747
    ISSN 2223-7747
    DOI 10.3390/plants12203546
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Shrinking forests under warming: evidence of Podocarpus parlatorei (pino del cerro) from the subtropical Andes.

    Quiroga, María Paula / Pacheco, Silvia / Malizia, Lucio R / Premoli, Andrea C

    The Journal of heredity

    2012  Volume 103, Issue 5, Page(s) 682–691

    Abstract: Phylogeography in combination with ecological niche modeling (ENM) is a robust tool to analyze hypotheses on range shifts under changing climates particularly of taxa and areas with scant fossil records. We combined phylogeographic analysis and ENM ... ...

    Abstract Phylogeography in combination with ecological niche modeling (ENM) is a robust tool to analyze hypotheses on range shifts under changing climates particularly of taxa and areas with scant fossil records. We combined phylogeographic analysis and ENM techniques to study the effects of alternate cold and warm (i.e., glacial and interglacial) periods on the subtropical montane cold-tolerant conifer Podocarpus parlatorei from Yungas forests of the central Andes. Twenty-one populations, comprising 208 individuals, were analyzed by sequences of the trnL -trnF cpDNA region, and 78 sites were included in the ENM. Eight haplotypes were detected, most of which were widespread while 3 of them were exclusive of latitudinally marginal areas. Haplotype diversity was mostly even throughout the latitudinal range. Two distribution models based on 8 bioclimatic variables indicate a rather continuous distribution during cooling, while under warming remained within stable, yet increasingly fragmented, areas. Although no major range shifts are expected with warming, long-lasting persistence of cold-hardy taxa inhabiting subtropical mountains may include in situ and ex situ conservation actions particularly toward southern (colder) areas.
    MeSH term(s) Climate Change ; Coniferophyta/classification ; Coniferophyta/genetics ; DNA Fragmentation ; DNA, Chloroplast/genetics ; DNA, Mitochondrial/genetics ; Evolution, Molecular ; Haplotypes ; Phylogeny ; Phylogeography ; Polymorphism, Genetic ; Sequence Analysis, DNA/methods ; Trees/genetics
    Chemical Substances DNA, Chloroplast ; DNA, Mitochondrial
    Language English
    Publishing date 2012-09
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 3044-2
    ISSN 1465-7333 ; 0022-1503
    ISSN (online) 1465-7333
    ISSN 0022-1503
    DOI 10.1093/jhered/ess031
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  4. Article: Tree species distribution in Andean forests: influence of regional and local factors

    Blundo, Cecilia / Malizia, Lucio R / Blake, John G / Brown, Alejandro D

    2012 Jan., v. 28, no. 1

    2012  

    Abstract: We identified and quantified regional and local environmental factors and spatial variation associated with tree-species composition across a 2000-m altitudinal gradient of Andean forest in north-western Argentina. A network of 47 1-ha plots was ... ...

    Abstract We identified and quantified regional and local environmental factors and spatial variation associated with tree-species composition across a 2000-m altitudinal gradient of Andean forest in north-western Argentina. A network of 47 1-ha plots was established along the altitudinal gradient within an area of about 25 000 km2; all trees ≥ 10 cm dbh were identified and measured. Constrained ordinations and variance-partitioning analyses were performed to investigate the determinants of tree-species distribution at the regional scale, across and within forest types (i.e. dry and cloud forests). We marked and measured a total of 22 240 trees belonging to 160 species. Significant environmental factors and spatial location combined accounted for 35% of total variation explained. A high proportion of variation was explained by climatic factors that were spatially structured; after removing the spatial effect, climate explained more variation in species composition across the complete gradient than did local factors. Relative importance of regional and local factors varied with geographic extent. Local factors explained more variation in tree-species composition at the within-forest scale than at the scale of the complete gradient. Our findings support the conceptual model of multi-scale controls on vegetation distribution, where local community composition and abundance result from processes at both regional and local scales.
    Keywords biogeography ; climatic factors ; community structure ; forest types ; models ; ordination techniques ; population distribution ; species diversity ; trees ; tropical montane cloud forests ; Andes region ; Argentina
    Language English
    Dates of publication 2012-01
    Size p. 83-95.
    Publishing place Cambridge University Press
    Document type Article
    ZDB-ID 395518-7
    ISSN 1469-7831 ; 0266-4674
    ISSN (online) 1469-7831
    ISSN 0266-4674
    DOI 10.1017/S0266467411000617
    Database NAL-Catalogue (AGRICOLA)

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  5. Article: Relationships among phenology, climate and biomass across subtropical forests in Argentina

    Blundo, Cecilia / Gasparri, Nestor I / Malizia, Agustina / Clark, Matthew / Gatti, Genoveva / Campanello, Paula I / Grau, H. Ricardo / Paolini, Leonardo / Malizia, Lucio R / Chediack, Sandra E / MacDonagh, Patricio / Goldstein, Guillermo

    Journal of tropical ecology. 2018, v. 34, no. 2

    2018  

    Abstract: Phenology is a key ecosystem process that reflects climate–vegetation functioning, and is an indicator of global environmental changes. Recently, it has been suggested that land-use change and timber extraction promote differences in forest phenology. We ...

    Abstract Phenology is a key ecosystem process that reflects climate–vegetation functioning, and is an indicator of global environmental changes. Recently, it has been suggested that land-use change and timber extraction promote differences in forest phenology. We use remote-sensing data to describe regional leaf phenological patterns in combination with field data from 131 plots in old-growth and disturbed forests distributed over subtropical forests of Argentina (54–65°W). We assessed how climate is related to phenological patterns, and analysed how changes in forest structural characteristics such as stock of above-ground biomass relate to the observed phenological signals across the gradient. We found that the first three axes of a principal component analysis explained 85% of the variation in phenological metrics across subtropical forests, ordering plots mainly along indicators of seasonality and productivity. At the regional scale, the relative importance of forest biomass in explaining variation in phenological patterns was about 15%. Climate showed the highest relative importance, with temperature and rainfall explaining Enhanced Vegetation Index metrics related to seasonality and productivity patterns (27% and 47%, respectively). Within forest types, climate explains the major fraction of variation in phenological patterns, suggesting that forest function may be particularly sensitive to climate change. We found that forest biomass contributed to explaining a proportion of leaf phenological variation within three of the five forest types studied, and this may be related to changes in species composition, probably as a result of forest use.
    Keywords aboveground biomass ; climate ; climate change ; ecosystems ; land use change ; leaves ; logging ; phenology ; principal component analysis ; rain ; remote sensing ; species diversity ; temperature ; vegetation index ; Argentina
    Language English
    Size p. 93-107.
    Publishing place Cambridge University Press
    Document type Article
    Note NAL-AP-2-clean
    ZDB-ID 395518-7
    ISSN 1469-7831 ; 0266-4674
    ISSN (online) 1469-7831
    ISSN 0266-4674
    DOI 10.1017/S026646741800010X
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  6. Article: Community-based forest management in the Yungas biosphere reserve, Northern Argentina

    Ianni, Elena / Mattenet, Mauricio / Geneletti, Davide / Malizia, Lucio R

    Environment, development and sustainability. 2010 Oct., v. 12, no. 5

    2010  

    Abstract: The purpose of this paper is to discuss a methodology for the implementation of a participative plan for forest use and management in a rural community. We present an experience carried out in an aboriginal community located in the “Yungas biosphere ... ...

    Abstract The purpose of this paper is to discuss a methodology for the implementation of a participative plan for forest use and management in a rural community. We present an experience carried out in an aboriginal community located in the “Yungas biosphere reserve” in Northern Argentina. We developed a methodology to work with the community to assess the quality of the forest resources and to find out the causes of degradation. We worked at three levels: the community council, the community, and the school. The community has a very short-term vision. The setup, the feasibility, and the implementation of the plan is highly dependent on the willingness of the community to participate. It is so far the first attempt, in Yungas region, to develop a multi-level methodology to work with local communities to implement a forest-management plan. Findings and recommendations could be useful for others who would like to work in similar contexts.
    Keywords forest restoration
    Language English
    Dates of publication 2010-10
    Size p. 631-646.
    Publisher Springer Netherlands
    Publishing place Dordrecht
    Document type Article
    ZDB-ID 1438730-x
    ISSN 1387-585X
    ISSN 1387-585X
    DOI 10.1007/s10668-009-9216-1
    Database NAL-Catalogue (AGRICOLA)

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  7. Article ; Online: Author Correction: Mature Andean forests as globally important carbon sinks and future carbon refuges.

    Duque, Alvaro / Peña, Miguel A / Cuesta, Francisco / González-Caro, Sebastián / Kennedy, Peter / Phillips, Oliver L / Calderón-Loor, Marco / Blundo, Cecilia / Carilla, Julieta / Cayola, Leslie / Farfán-Ríos, William / Fuentes, Alfredo / Grau, Ricardo / Homeier, Jürgen / Loza-Rivera, María I / Malhi, Yadvinder / Malizia, Agustina / Malizia, Lucio / Martínez-Villa, Johanna A /
    Myers, Jonathan A / Osinaga-Acosta, Oriana / Peralvo, Manuel / Pinto, Esteban / Saatchi, Sassan / Silman, Miles / Tello, J Sebastián / Terán-Valdez, Andrea / Feeley, Kenneth J

    Nature communications

    2021  Volume 12, Issue 1, Page(s) 3617

    Language English
    Publishing date 2021-06-08
    Publishing country England
    Document type Published Erratum
    ZDB-ID 2553671-0
    ISSN 2041-1723 ; 2041-1723
    ISSN (online) 2041-1723
    ISSN 2041-1723
    DOI 10.1038/s41467-021-23955-7
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  8. Article ; Online: Mature Andean forests as globally important carbon sinks and future carbon refuges.

    Duque, Alvaro / Peña, Miguel A / Cuesta, Francisco / González-Caro, Sebastián / Kennedy, Peter / Phillips, Oliver L / Calderón-Loor, Marco / Blundo, Cecilia / Carilla, Julieta / Cayola, Leslie / Farfán-Ríos, William / Fuentes, Alfredo / Grau, Ricardo / Homeier, Jürgen / Loza-Rivera, María I / Malhi, Yadvinder / Malizia, Agustina / Malizia, Lucio / Martínez-Villa, Johanna A /
    Myers, Jonathan A / Osinaga-Acosta, Oriana / Peralvo, Manuel / Pinto, Esteban / Saatchi, Sassan / Silman, Miles / Tello, J Sebastián / Terán-Valdez, Andrea / Feeley, Kenneth J

    Nature communications

    2021  Volume 12, Issue 1, Page(s) 2138

    Abstract: It is largely unknown how South America's Andean forests affect the global carbon cycle, and thus regulate climate change. Here, we measure aboveground carbon dynamics over the past two decades in 119 monitoring plots spanning a range of >3000 m ... ...

    Abstract It is largely unknown how South America's Andean forests affect the global carbon cycle, and thus regulate climate change. Here, we measure aboveground carbon dynamics over the past two decades in 119 monitoring plots spanning a range of >3000 m elevation across the subtropical and tropical Andes. Our results show that Andean forests act as strong sinks for aboveground carbon (0.67 ± 0.08 Mg C ha
    MeSH term(s) Biomass ; Carbon/metabolism ; Carbon Sequestration/physiology ; Climate Change ; Conservation of Natural Resources ; Forests ; South America ; Trees/metabolism ; Tropical Climate
    Chemical Substances Carbon (7440-44-0)
    Language English
    Publishing date 2021-04-09
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Research Support, U.S. Gov't, Non-P.H.S.
    ZDB-ID 2553671-0
    ISSN 2041-1723 ; 2041-1723
    ISSN (online) 2041-1723
    ISSN 2041-1723
    DOI 10.1038/s41467-021-22459-8
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  9. Article ; Online: FunAndes - A functional trait database of Andean plants.

    Báez, Selene / Cayuela, Luis / Macía, Manuel J / Álvarez-Dávila, Esteban / Apaza-Quevedo, Amira / Arnelas, Itziar / Baca-Cortes, Natalia / Bañares de Dios, Guillermo / Bauters, Marijn / Ben Saadi, Celina / Blundo, Cecilia / Cabrera, Marian / Castaño, Felipe / Cayola, Leslie / de Aledo, Julia G / Espinosa, Carlos Iván / Fadrique, Belén / Farfán-Rios, William / Fuentes, Alfredo /
    Garnica-Díaz, Claudia / González, Mailyn / González, Diego / Hensen, Isabell / Hurtado, Ana Belén / Jadán, Oswaldo / Lippok, Denis / Loza, M Isabel / Maldonado, Carla / Malizia, Lucio / Matas-Granados, Laura / Myers, Jonathan A / Norden, Natalia / Oliveras Menor, Imma / Pierick, Kerstin / Ramírez-Angulo, Hirma / Salgado-Negret, Beatriz / Schleuning, Matthias / Silman, Miles / Solarte-Cruz, María Elena / Tello, J Sebastián / Verbeeck, Hans / Vilanova, Emilio / Weithmann, Greta / Homeier, Jürgen

    Scientific data

    2022  Volume 9, Issue 1, Page(s) 511

    Abstract: We introduce the FunAndes database, a compilation of functional trait data for the Andean flora spanning six countries. FunAndes contains data on 24 traits across 2,694 taxa, for a total of 105,466 entries. The database features plant-morphological ... ...

    Abstract We introduce the FunAndes database, a compilation of functional trait data for the Andean flora spanning six countries. FunAndes contains data on 24 traits across 2,694 taxa, for a total of 105,466 entries. The database features plant-morphological attributes including growth form, and leaf, stem, and wood traits measured at the species or individual level, together with geographic metadata (i.e., coordinates and elevation). FunAndes follows the field names, trait descriptions and units of measurement of the TRY database. It is currently available in open access in the FIGSHARE data repository, and will be part of TRY's next release. Open access trait data from Andean plants will contribute to ecological research in the region, the most species rich terrestrial biodiversity hotspot.
    MeSH term(s) Biodiversity ; Phenotype ; Plant Leaves ; Plants ; Wood
    Language English
    Publishing date 2022-08-20
    Publishing country England
    Document type Dataset ; Journal Article
    ZDB-ID 2775191-0
    ISSN 2052-4463 ; 2052-4463
    ISSN (online) 2052-4463
    ISSN 2052-4463
    DOI 10.1038/s41597-022-01626-6
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  10. Article ; Online: Elevation and latitude drives structure and tree species composition in Andean forests: Results from a large-scale plot network.

    Malizia, Agustina / Blundo, Cecilia / Carilla, Julieta / Osinaga Acosta, Oriana / Cuesta, Francisco / Duque, Alvaro / Aguirre, Nikolay / Aguirre, Zhofre / Ataroff, Michele / Baez, Selene / Calderón-Loor, Marco / Cayola, Leslie / Cayuela, Luis / Ceballos, Sergio / Cedillo, Hugo / Farfán Ríos, William / Feeley, Kenneth J / Fuentes, Alfredo Fernando / Gámez Álvarez, Luis E /
    Grau, Ricardo / Homeier, Juergen / Jadan, Oswaldo / Llambi, Luis Daniel / Loza Rivera, María Isabel / Macía, Manuel J / Malhi, Yadvinder / Malizia, Lucio / Peralvo, Manuel / Pinto, Esteban / Tello, Sebastián / Silman, Miles / Young, Kenneth R

    PloS one

    2020  Volume 15, Issue 4, Page(s) e0231553

    Abstract: Our knowledge about the structure and function of Andean forests at regional scales remains limited. Current initiatives to study forests over continental or global scales still have important geographical gaps, particularly in regions such as the ... ...

    Abstract Our knowledge about the structure and function of Andean forests at regional scales remains limited. Current initiatives to study forests over continental or global scales still have important geographical gaps, particularly in regions such as the tropical and subtropical Andes. In this study, we assessed patterns of structure and tree species diversity along ~ 4000 km of latitude and ~ 4000 m of elevation range in Andean forests. We used the Andean Forest Network (Red de Bosques Andinos, https://redbosques.condesan.org/) database which, at present, includes 491 forest plots (totaling 156.3 ha, ranging from 0.01 to 6 ha) representing a total of 86,964 identified tree stems ≥ 10 cm diameter at breast height belonging to 2341 identified species, 584 genera and 133 botanical families. Tree stem density and basal area increases with elevation while species richness decreases. Stem density and species richness both decrease with latitude. Subtropical forests have distinct tree species composition compared to those in the tropical region. In addition, floristic similarity of subtropical plots is between 13 to 16% while similarity between tropical forest plots is between 3% to 9%. Overall, plots ~ 0.5-ha or larger may be preferred for describing patterns at regional scales in order to avoid plot size effects. We highlight the need to promote collaboration and capacity building among researchers in the Andean region (i.e., South-South cooperation) in order to generate and synthesize information at regional scale.
    MeSH term(s) Altitude ; Biodiversity ; Climate ; Forests ; South America ; Trees
    Language English
    Publishing date 2020-04-20
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ISSN 1932-6203
    ISSN (online) 1932-6203
    DOI 10.1371/journal.pone.0231553
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