Estructura poblacional de Teline monspessulana (L.) K. Koch en fragmentos de bosque maulino en Chile central

Abstract

In this note we examine the population structure of Teline monspessulana, an exotic plant that is invading fragments of the Maulino Forest. We evaluate density T. monspessulana, sizes, proportion of reproductive individuals and his relation with the size of the patches in 8 forest fragments. Our results indicate a high proportion of individuals growing inside fragments. Moreover, the fragment size is not correlated with T. monspessulana density.

Native Plant Diversity and Composition Across a Pinus radiata D.Don Plantation Landscape in South-Central Chile—The Impact of Plantation Age, Logging Roads and Alien Species

“…We presented results for a plantation landscape containing large and small natural forests as seed source for native species. With natural forest remnants of different sizes and qualities scattered across Mediterranean Chile [75,80], we consider our results valid across many anthropogenic plantation landscapes. Nonetheless, in order to understand the overall effect of large-scale industrial plantations on native biodiversity more studies in differently composed landscapes are necessary including a comparison with the whole range of successional stages not only in plantations but also within natural forests.…”

“…R. ulmifolius and G. monspessulana are two prominent invasive alien species in central Chile, which show a high plasticity in their invaded range allowing an adaptation to novel environments such as light limited understories [63,74]. G. monspessulana was the only indicator species at mature plantation roadsides and also occurred at roadsides of the natural forest underlining the invasion potential in the long-term, as seen within natural forest fragments of different sizes in central Chile [75]. During the present observation, though, alien species were still almost absent from the large natural forest as well as from the smaller fragment.…”

Maintaining close canopy cover prevents the invasion of Pinus radiata: Basic ecology to manage native forest invasibility

“…Pine invasion into forest fragments occurred at least from 1945 and currently, there exists approx. 10% of reproductive individuals inside forest [35]. During the last decades the intensity and extent of human-induced fires have increased significantly, reducing even more the remnant native forest [34].…”

Forest canopy, a proxi of light intensity, arrests Pinus radiata invasion: basic science to conserve the Coastal Maulino forest, Central Chile

“…Dominant native tree are Nothofagus glauca associated with Persea lingue and Gevuina avellana in more humid habitats and with Nothofagus obliqua and Nothofagus alessandrii in drier habitats (San Martín and Donoso 1996). Evidence indicates that P. radiata is invading actively these forest (Bustamante et al 2003; Bustamante et al 2005; Gomez et al 2012), however, we do not know which are the main drivers of this invasive process.…”

“…As human activities related to logging or recurrent fires reduce canopy cover, there are more opportunities to P. radiata invasion and probably other invasive species with similar regeneration requirements ( e.g. Teline monpessulana, Gómez et al 2012). It deserves special mention that during the last years, strong fires have occurred across Central Chile (Garfias et al 2012).…”