Results 1 to 10 of about 10,616 (178)
Vegetación de afloramientos carbonáticos de montañas del centro de Argentina [PDF]
Boletín de la Sociedad Argentina de Botánica, 2014 En las montañas del centro de Argentina, con una intensa fragmentación y reemplazos dela vegetación natural, los afloramientos rocosos constituyen hábitats importantes para la conservaciónde la biodiversidad, como refugios de especies endémicas y raras ...
Juan José Cantero +4 more
doaj +3 more sources
Los hongos liquenizados del género Glyphis en Veracruz, México
Acta Botanica Mexicana, 2021 Antecedentes y Objetivos: La familia Graphidaceae es considerada como una de las de mayor representatividad de hongos liquenizados, tanto en México como en el mundo. Aproximadamente 175 de sus especies se han registrado en México.
Jorge Guzmán-Guillermo +2 more
doaj +1 more source
Botanical Sciences, 2021 Antecedentes: A pesar de que las especies pueden presentar amplios rangos altitudinales, poco se conoce acerca de cómo varía su abundancia y de las variables asociadas a esta variación.
Pamela A. Martino +2 more
doaj +1 more source
Epiphytic Orchid Diversity along an Altitudinal Gradient in Central Nepal [PDF]
Plants, 2021 Epiphytic orchids are common in subtropical forests, but little is known about the factors that determine their diversity. We surveyed two sites (north-facing Phulchowki and south-facing Shivapuri hills), in the sub-tropical forest in the Kathmandu valley, central Nepal. Along five transects per site, spanning an altitudinal gradient of 1525–2606 m a.s.
Binu Timsina +4 more
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Behavioural tuning in a tropical amphibian along an altitudinal gradient [PDF]
Biology Letters, 2017 Males of the coqui treefrog,Eleutherodactylus coqui, produce a distinct two-note ‘co-qui' advertisement call from sunset to midnight throughout most of the year. Previous work established that both the spectrotemporal aspects of the call and the frequency of highest inner-ear sensitivity change with altitude above sea level.
Sebastiaan W. F. Meenderink +2 more
openaire +4 more sources
Calentamiento global y la fisiología de ectotermos: el caso de tres lacertilios mexicanos
Ciencia Ergo Sum, 2020 Los hallazgos recientes muestran que el calentamiento global puede causar cambios en la distribución espacial de diversas especies de reptiles e incluso llevar a su extinción.
Victor Fajardo +2 more
doaj +1 more source
Altitudinal gradients, plant hybrid zones and evolutionary novelty [PDF]
Philosophical Transactions of the Royal Society B: Biological Sciences, 2014 Altitudinal gradients are characterized by steep changes of the physical and biotic environment that present challenges to plant adaptation throughout large parts of the world. Hybrid zones may form where related species inhabit different neighbouring altitudes and can facilitate interspecific gene flow and potentially the breakdown of ...
Abbott, R.J., Brennan, A.C.
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The distribution of mosquitoes across an altitudinal gradient in the Galapagos Islands [PDF]
Journal of Vector Ecology, 2017 An avian malaria parasite (genus Plasmodium) has been detected consistently in the Galapagos Penguin (Spheniscus mendiculus) and less frequently in some passerines. We sampled three resident mosquito species (Aedes taeniorhynchus, Culex quinquefasciatus, and Aedes aegypti) using CDC light and gravid traps on three islands in 2012, 2013, and 2014.
Samoa, Asigau +3 more
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Variación altitudinal y diversidad vegetal en matorrales: Sierra de los Filabres (Almería, España) [PDF]
, 1995 The main objetives in this research is to determine vegetational diversity along the transect carried out on the south side of S' de Los Filabres, localiced in southeastern of Iberian Peninsula, from 800 m to the top.
Cabello, Javier +3 more
core +4 more sources
Grassland biomass dynamics along an altitudinal gradient in the Pampa [PDF]
Journal of Range Management, 2000 Above and below-ground biomass and necromass dynamics were assessed for 3 grassland sites located at 550, 850, and 1,025 m elevation in Sierra de la Ventana range (38 degrees 1'S 62 degrees 2'W) in Argentina. The objective was to determine if differences existed in dry matter structure, mycorrhizae infection, net primary productivity (NPP) partitioning
Pérez, Carolina Alejandra +1 more
openaire +3 more sources