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dc.contributor.author
Quiroga, Raul Emiliano
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dc.contributor.author
Premoli Il'grande, Andrea Cecilia
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dc.contributor.author
Premoli Il'grande, Andrea Cecilia
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dc.date.available
2023-01-05T12:36:03Z
dc.date.issued
2020-09
dc.identifier.citation
Quiroga, Raul Emiliano; Premoli Il'grande, Andrea Cecilia; Premoli Il'grande, Andrea Cecilia; Niche dynamics in amphitropical desert disjunct plants: Seeking for ecological and species-specific influences; Wiley Blackwell Publishing, Inc; Global Ecology and Biogeography; 30; 2; 9-2020; 370-383
dc.identifier.issn
1466-822X
dc.identifier.uri
http://hdl.handle.net/11336/183484
dc.description.abstract
Aim: Numerous studies have assessed whether species niches are conserved in geographically separated regions. However, most of them were performed on invasive species, with the limitation that such species have likely not yet reached their potential distribution in the invaded region. Here we test the hypothesis of niche conservatism in the entire group of 25 amphitropical desert disjunct plant species, naturally distributed in North and South America but absent in the tropics. We also assessed the influence of ecological (intensity of biotic interactions) and species-specific factors (dispersal ability and adaptation to stress) on species niche differentiation between the two continents. Location: North America and South America. Time period: Recent. Major taxa studied: Plants. Amphitropical desert disjunct species. Methods: Species’ presence coordinates and five biologically relevant climatic variables were used to quantify niche differentiation of species between continents by means of principal component analysis. Then, structural equation modelling was performed to assess the influence on niche differentiation of proxies for intensity of biotic interactions (habitat net primary productivity), species dispersibility (dispersal mode and plant traits), and adaptation to stress (leaf size). Results: Niche shift was detected for 24 out of the 25 species, mostly towards cooler environments in South America (−2.5 °C average) with respect to North America. These niche shifts were best explained by the productivity of species’ habitats, in particular by the displacement of species’ niches away from the more productive and competitive environments of South America. Main conclusions: Niche shift seems to be the rule in amphitropical desert plants. Our findings highlight a previously undetected connection between amphitropical disjunct species and macroecological characteristics of the Americas. We show that prevalent environments differ between South and North America, and suggest that associated biotic contexts (mainly competition from widespread tropical and subtropical forests in South America) play a determinant role on species’ distribution and niches.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Wiley Blackwell Publishing, Inc
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dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
ABIOTIC STRESS
dc.subject
AMPHITROPICAL DISJUNCTS
dc.subject
BIOTIC INTERACTIONS
dc.subject
DESERT PLANT SPECIES
dc.subject
DISPERSAL ABILITY
dc.subject
NICHE DYNAMICS
dc.subject
NORTH AMERICA
dc.subject
SOUTH AMERICA
dc.subject.classification
Ecología
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dc.subject.classification
Ciencias Biológicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Niche dynamics in amphitropical desert disjunct plants: Seeking for ecological and species-specific influences
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2021-09-06T20:31:00Z
dc.journal.volume
30
dc.journal.number
2
dc.journal.pagination
370-383
dc.journal.pais
Reino Unido
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dc.journal.ciudad
Londres
dc.description.fil
Fil: Quiroga, Raul Emiliano. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Buenos Aires; Argentina
dc.description.fil
Fil: Premoli Il'grande, Andrea Cecilia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones en Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche. Instituto de Investigaciones en Biodiversidad y Medioambiente; Argentina
dc.description.fil
Fil: Premoli Il'grande, Andrea Cecilia. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; Argentina
dc.journal.title
Global Ecology and Biogeography
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/abs/10.1111/geb.13215
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1111/geb.13215
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