Departamento de Botánica

1 month ago | onlinelibrary.wiley.com | Pablo Antunez |Martin Ricker |Departamento de Botánica

1 Introduction It has been discussed for decades whether species occur most frequently or abundantly at their geographic center, and more recently, at their environmental niches' center (Dallas et al. 2017; Soberón et al. 2018; Fristoe et al. 2023). Species, including tree species, are adapted to environmental conditions (Flood and Hancock 2017); consequently, species are expected to have preferred points or intervals on unidimensional environmental gradients (Toledo et al. 2012).

Jun 2, 2024 | academic.oup.com | Departamento de Botánica |Universidad de Concepcion |Escuela de Química |San Jose

Pleistocene climatic oscillations, characterized by arid (interglacial) and pluvial (glacial) phases, have profoundly impacted the floras of Mediterranean climates. Our study investigates the hypothesis that these climatic extremes have promoted phases of range expansion and contraction in the Eriosyce sect. Neoporteria, resulting in pronounced genetic structuring and restricted gene flow.

May 24, 2024 | link.springer.com | Departamento de Botánica |Universidad de Concepcion |Facultad de Ciencias |Universidad del Bío-Bío

AbstractThis study delves into the cytogenetic, molecular, and ecological aspects of the Alstroemeria pulchra complex, emphasizing the role of prior morpho-colorimetric analyses in differentiating the infraspecific taxa of A. pulchra.

Apr 21, 2024 | onlinelibrary.wiley.com | Eduardo J. Haverroth |Ian M. Rimer |Leonardo Oliveira |Departamento de Botánica

1 INTRODUCTION Water is transported through the xylem from the soil to the evaporating surfaces in the leaves. This upward movement of water against gravity is driven by a water potential gradient between the soil and the leaves (Dixon & Joly, 1895). During drought, the formation of embolism blocks the water flow through xylem conduits.

Apr 12, 2024 | link.springer.com | Instituto de Biociências |Porto Alegre |Departamento de Botánica |Instituto de Biologia

AbstractPlants and ants engage in diverse mutualistic interactions that contribute to their adaptive fitness. However, the presence of ants in flowers can generate conflicts between plants and pollinators. These interactions are little studied in temperate grasslands, despite the ubiquitous interactions between ants and plants in this region. In this study, we investigated how the presence and mobility of Camponotus termitarius (Emery) ants on Eryngium chamissonis Urb.