Banco De Semillas, Regeneracion Y Crecimiento De Teline Monspessulana (L.) K. Koch Despues De Un Incendio Forestal

Garcı́a, R.; Pauchard, Aníbal; Peña, Eduardo de la

doi:10.4067/s0717-66432007000200005

Cited by 8 publications

(8 citation statements)

References 12 publications

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“…pers.) y resistencia y viabilidad por largos periodos de tiempo (García et al, 2007). Esta especie presenta tasas de regeneración altas, a través de renuevos vegetativos o a partir de semillas (Barrera et al, 2010), que permite la formación de un banco de semillas abundante y persistente en el tiempo a la espera de la ocurrencia de un disturbio para su activación y recolonización.…”

Section: Discussionunclassified

“…En el trópico, la especie coloniza diferentes ecosistemas, encontrándo-se bajo coberturas arbóreas, en áreas abiertas de talud, en claros de bosque y asociada a matrices de pastizales con suelos pobres en nutrientes o deficiencias hídricas (Bohórquez, 2013). En esos sitios G. monspessulana forma matorrales densos que incrementan el riesgo para la generación y propagación de incendios y excluyen especies nativas provocando una disminución en la biodiversidad (García et al, 2007;Pauchard et al, 2008). Esto limita la sostenibilidad de las áreas conservadas, por lo que es necesario controlar sus poblaciones para lograr los objetivos de restauración ecológica (Gutiérrez, 2006).…”

Section: Introductionunclassified

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PATRÓN DE REGENERACIÓN DE LA PLÁNTULA DE Genista monspessulana (L.) L.A.S. Johnson, EN DOS ESCENARIOS DE RESTAURACIÓN ECOLÓGICA

Solorza-Bejarano

2017

Colomb. For.

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Con el fin de mejorar los programas de control de la especie invasora Genista monspessulana en dos escenarios de restauración ecológica con diferente disponibilidad lumínica en Bogotá, se analizó el patrón de regeneración del banco de semillas y el desarrollo inicial de los individuos. Para ello, se estudió la cobertura, abundancia, altura, longitud epigea e hipogea, número de foliolos, área foliar, diámetro de la raíz, número de ramificaciones de la raíz, presencia de nódulos y biomasa epigea e hipogea de las plántulas. El desarrollo de las plántulas, así como la regeneración del banco de semillas, presentaron diferencias en los escenarios ecológicos. En el área bajo dosel arbóreo los individuos presentaron un lento crecimiento, limitado por la cobertura de hojarasca y la baja disponibilidad lumínica; mientras que, en el área abierta con mayor incidencia lumínica, los individuos presentaron un rápido desarrollo de las hojas y raíces, además de la asociación mutualista con microorganismos que les permite mayor absorción y fijación de nitrógeno.

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Section: Discussionunclassified

Section: Introductionunclassified

PATRÓN DE REGENERACIÓN DE LA PLÁNTULA DE Genista monspessulana (L.) L.A.S. Johnson, EN DOS ESCENARIOS DE RESTAURACIÓN ECOLÓGICA

Solorza-Bejarano

2017

Colomb. For.

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“…These perturbations cause the replacement of older plants with new plants from the soil seed bank (García et al 2010), generating an even-age structure within populations. The rapid growth of the species produces plants close to 1 m in height only a few months after germination (García et al 2007), which then reach an average height of 2.7 m by the adult stage (, 6 years). This rapid growth leads to extensive intraspecific competition that is reflected in marked mortality in populations, with densities decreasing from 300 to 15 plants m À2 in less than a decade.…”

Section: Discussionmentioning

confidence: 99%

“…In addition to modifying fire regimes, T. monspessulana may also benefit from wildfires (García et al 2010). T. monspessulana regenerates abundantly from the seed bank after a wildfire (García et al 2007;Pauchard et al 2008) and shows rapid growth in height during the following months (García et al 2007). The seeds of this species are able to withstand high temperatures in the soil seed bank during fires (Alexander and D'Antonio 2003b;García et al 2010), and seed germination for this species has been shown to increase with increasing temperatures, reaching its maximum when seeds were preheated to between 80 and 1208C (García et al 2010).…”

Section: Introductionmentioning

confidence: 99%

Fuel characteristics of the invasive shrub Teline monspessulana (L.) K. Koch

Garcı́a

Engler

Peña

et al. 2015

Int. J. Wildland Fire

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Some broom species have the ability to modify elements of the fire regime in invaded areas. One such species, Teline monspessulana (Syn. Genista monspessulana; French Broom), has expanded notoriously in south-central Chile’s Mediterranean climate. The biota of this area may be particularly vulnerable to effects of invasive species on the fire regime, as it is less adapted to wildfires. The properties of the fuel accumulated in T. monspessulana populations of different ages are characterised in this paper. For this, models were constructed to estimate fuel accumulation in T. monspessulana populations, and tests for flammability of foliage were also performed. The results show that the rapid growth of this invasive shrub ensures a significant accumulation of fuel (close to 90 ton ha–1) in periods shorter than a decade, which may influence the severity of wildfires. Further, the fuel has a significant accumulation of fine material and high flammability, both of which may facilitate the ignition of fires. The large volume and high flammability of the fuel accumulated in T. monspessulana populations can thus play an important role in changing the fire regime in areas where it has invaded.

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“…Besides, fires have further promoted the invasion by Monterey pines in areas of severely burnt native forests. If these events increase in frequency due to global warming [79,80], an additional pressure on native forests will come from invasion (and eventual replacement) by fire tolerant exotic species [81]. Because of the latter, calls have been made to reduce the cover of industrial forests.…”

Section: Conservation Implicationsmentioning

confidence: 99%

Pine plantations and five decades of land use change in central Chile

2020

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The expansion of forest plantations is cause for concern because of their environmental effects, and the loss of native forests and agricultural land. Our goal was to quantify the increase in pine plantation, and concomitant loss of native forests, in central Chile since ca. 1960, and to identify in which settings native forests were lost most rapidly. We analyzed aerial photographs from 1955 and 1961, Landsat images from 1975and 1998 Earth high-resolution satellite images from 2014. To ensure high classification accuracy, we visually interpreted images for a systematic 3-km grid and assigned each point as either 'pine plantation', 'native forest', 'agricultural-livestock lands', or 'other'. We also calculated latitude, longitude, slope, Euclidean distance to the nearest road and to the nearest pulp mill, and the frequency of land use surrounding each point as potential variables to explain observed land use changes. Pine plantations expansion started even before 1960, when 12% of all points were already pine plantations, was particularly rapid from 1975 (18% of sample points) to 1998 (38%), and stabilized thereafter (37% by 2014). From 1975 to 1998 alone, 40% of native forests were replaced by pine plantations, and agricultural-livestock lands declined by 0.7%, 0.9%, 1% per year before 1975, from 1975 to 1998, and after 1998 respectively. Native forests that were surrounded by pine plantations, were most likely to be converted to plantations, and from 1960 to 1975, also native forests near pulp mills. The probability of change from agricultural-livestock lands to pine plantations was mainly influenced by slope, with most agricultural-livestock lands remaining in areas with low slopes. regrowth on abandoned agriculture, and partly due to plantations [11][12][13]. The forest transition hypothesis proposed by Mather and Needle [14] suggests that the concentration of agricultural production by farmers on better soils, promotes the abandonment of poorer soils, and allowing for natural reforestation or plantations, thereby increasing forest cover in some places [15,16]. An important forest cover increase, after agricultural abandonment, is in the form of forest plantation expansion [13,17], and that has been observed in several developing countries, mainly in Asia and Latin America [18][19][20].While worldwide natural forest declined between 1990 and 2015, forest plantations increased from 168 M ha to 278 M during the same period [10]. Plantations are often promoted by governments to bring abandoned or agricultural unproductive lands back into use, and mechanisms for that promotion include tax reductions or subsidies with the purpose of stimulating economic development and forestry industry [21,22]. Nevertheless, not only abandoned and unproductive lands have been converted into plantations, native vegetation has also been transformed into forest plantations (e.g. [23][24][25]), which means that the growing of global forest cover entails concomitant native forest loss (e.g. [19,26]).Agglomeration economies (sensu [2...

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Banco De Semillas, Regeneracion Y Crecimiento De Teline Monspessulana (L.) K. Koch Despues De Un Incendio Forestal

Cited by 8 publications

References 12 publications

PATRÓN DE REGENERACIÓN DE LA PLÁNTULA DE Genista monspessulana (L.) L.A.S. Johnson, EN DOS ESCENARIOS DE RESTAURACIÓN ECOLÓGICA

PATRÓN DE REGENERACIÓN DE LA PLÁNTULA DE Genista monspessulana (L.) L.A.S. Johnson, EN DOS ESCENARIOS DE RESTAURACIÓN ECOLÓGICA

Fuel characteristics of the invasive shrub Teline monspessulana (L.) K. Koch

Pine plantations and five decades of land use change in central Chile

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