Results 91 to 100 of about 142,547 (191)

Entre el orden y el caos: invasiones con dinámicas no lineales de sauces y álamos en el norte de la Patagonia [PDF]

open access: yes, 2016
¿Cómo es la dinámica de un paisaje ribereño, cuyos componentes no comparten una historia evolutiva común? Proponemosel estudio de las invasiones de salicáceas exóticas en los valles de los ríos Limay y Azul sobre la base de modelosmatemáticos.
Datri, Leonardo Ariel   +2 more
core  

Testing the size‐grain hypothesis in a generalist predator: The case of an ant species in the Brazilian savannah

open access: yesJournal of Zoology, EarlyView.
In our recent study, we examined whether ants in the Brazilian Cerrado follow the “grain‐size hypothesis,” which proposes that larger ants should have proportionally longer legs to move efficiently across different environments. We used Ectatomma permagnum, a common predatory ant in the Cerrado, measuring hundreds of individuals collected from various ...
A. Sandim, R. Aranda
wiley   +1 more source

Influencia de la fragmentación en la diversidad de la flora silvestre y en los cambios de uso de suelo y cobertura vegetal en Huerta Huaraya, Puno [PDF]

open access: yes, 2012
Resumen de Tesis Doctoral, Área de Ecología, Departamento de Biología, Universidad Nacional del Altiplano, Puno, Perú, Febrero 2012, Director: M. Sc.
Condori Castillo, Gianni
core   +1 more source

Reconciling links between diversity and population stability across global plant communities

open access: yesNew Phytologist, EarlyView.
Summary Maintaining ecological stability is essential for sustaining ecosystem functions and the benefits they provide to society. Ecological theory predicts that plant diversity destabilizes local populations, yet empirical studies report variable effects.
Xiaobin Pan   +51 more
wiley   +1 more source

Microclimate drives demographic compensation in a narrow endemic tropical species

open access: yesNew Phytologist, EarlyView.
Summary Demographic compensation occurs when reductions in some vital rates are offset by increases in others, allowing populations to maintain similar performance across varying environments. This mechanism may help explain species' ecological distributions and range limits, yet its role at microenvironmental scales remains poorly understood.
Talita Zupo   +10 more
wiley   +1 more source

Small RNAs regulation and genomic harmony: insights into allopolyploid evolution in marsh orchids (Dactylorhiza)

open access: yesNew Phytologist, EarlyView.
Summary Hybridization and polyploidy are major drivers of plant diversification, often accompanied by shifts in gene expression and genome composition. Small RNAs (smRNAs) are thought to influence such genomic changes, particularly through their interactions with transposable elements (TEs).
Mimmi C. Eriksson   +6 more
wiley   +1 more source

Distribución espacial y diversidad vegetal en la biodeposición de Galea leucoblephara y Microcavia maenas en un área protegida y un campo pastoreado, Ñacuñán, Mendoza [PDF]

open access: yes, 2019
La herbivoría altera en forma directa a la vegetación y la modifica indirectamente a través de los comportamientos de ingeniería como la biodeposición (deposición de heces y orina) pudiendo afectar los suelos y las propiedades físicas que influyen ...
Larramendy, Laura Ailén
core  

Limited drought tolerance in the neotropical seasonally dry forest plants impairs future species richness

open access: yesPlant Biology, EarlyView.
Global climate change will likely modify the plant assemblages of the Neotropical seasonally dry forest based on the physiological capabilities of the species. Abstract Neotropical seasonal dry forest (NSDF) is one of the most threatened ecosystems according to global climate change predictions.
A. Manrique‐Ascencio   +4 more
wiley   +1 more source

Selección de diferentes sistemas de producción de cacao (Theobroma cacao, Malvaceae) por aves en Alto Beni, Bolivia - una prueba de cafetería en el campo [PDF]

open access: yes, 2017
El cacao (Theobroma cacao, Malvaceae) es una especie nativa de Sudamérica, y se considera que su cultivo cumple un rol importante para la conservación de biodiversidad.
Gómez, M. Isabel   +2 more
core  

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