Browsing by Author "Moreira-Munoz, Andres"

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    Pseudognaphalium munoziae (Gnaphalieae, Asteraceae): A new South American species from Chile
    (2013) Freire, Susana E.; Monti, Claudia; Moreira-Munoz, Andres; Bayon, Nestor D.
    Pseudognaphalium is a large genus with about 90 species distributed worldwide, but with most species in America, and some in Asia, and Africa. A new species, P. munoziae, from the north of Chile (Parinacota and Iquique provinces), is described and illustrated. Pseudognaphalium munoziae is similar to P. glandulosum but it is principally distinguished by its rosulate basal leaves which are longer than the upper, all of which are apically acute to subobtuse. A key to the species of dwarf Pseudognaphalium occurring in Chile is provided along with a map of their distribution.
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    Spatial dynamics in the urban-rural-natural interface within a social-ecological hotspot
    (Elsevier Sci Ltd., 2023) Moreira-Munoz, Andres; Río López, Camilo del; Leguia-Cruz, Marcelo; Mansilla-Quinones, Pablo; Peng, J.
    City-regions in sensitive environmental spaces such as globally recognized biodiversity hotspots face the chal-lenge of adopting land use planning strategies that facilitate the transition towards sustainability. Though landscape-scale patterns of land use changes have already been documented in central Chile, a critical spatial assessment of the dynamics and forces shaping current land use and the conservation landscape in the Valpar-aiso-Santiago city-region has not yet been undertaken. We applied a satellite-based survey of urban sprawl and the extension and recurrence of wildfires spanning a 35-year timeframe from 1985 to 2020. We compared their spatial occurrence with high ecological value areas (HEVA) and analyzed the resulting patterns within the framework of an ad-hoc centrifugal forces model. Results show a constant expansion of urban sprawl and direct impacts of wildfires affecting biodiversity values. La Campana-Pen & SIM;uelas Biosphere Reserve emerges as a relevant spatial feature that can facilitate the transition towards sustainability at the regional scale, although the laissez-faire stance of the dominant neoliberal economic model in Chile is the most evident threat to the transition toward sustainability. We conclude that the study area, with the attributes of a social-ecological hotspot, shows strengths such as a space capable of transformative change and the potential of a regenerative city-region.
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    Towards Conservation of the Remarkably High Number of Daisy Trees (Asteraceae) in Mexico
    (2021) Redonda-Martinez, Rosario; Pliscoff, Patricio; Moreira-Munoz, Andres; Martinez Salas, Esteban Manuel; Samain, Marie-Stephanie
    Mexico is floristically the fourth most species-rich country in the world, and Asteraceae is the most diverse vascular plant family in this country. The species exhibits a wide range of growth forms, but the tree-like habit, appropriately named daisy trees, is heavily underestimated, even though slightly different tree definitions are handled. Very little is known about their precise species number or conservation status in Mexico, so we update here the list of known Mexican daisy tree species, summarize their very diverse uses, present a general panorama of their present and future distribution, and discuss their conservation status. A bibliographic review and herbarium study were carried out, carefully curated taxonomical ocurrence maps were prepared for each species, and a climatic suitability modelling approach was used to characterise the spatial patterns of Mexican Asteraceae trees. With 149 daisy tree species, the country ranks second at a global level; within the country, their greatest diversity is found in central and western Mexico. A decrease in diversity is estimated in areas that currently host the highest species richness, whereas the hotspot regions are estimated to show an increase in species diversity, so climate change is not a threat to all Mexican daisy tree species.