Efecto de la fragmentación del hábitat sobre la calidad de las semillas en Lapageria rosea

Resultado de la investigación: Article

21 Citas (Scopus)

Resumen

Habitat fragmentation is commonly associated to a reduction in plant fitness, because the reduction in the number of seeds produced. However habitat fragmentation might also affect plant fitness through a reduction in the quality of the seeds produced, as for example in seed viability, seed size or in seed germination. These factors could be affected because small populations size and high degree in isolation, frequently found in fragments, could induce to the loss of genetic population variability and the expression of inbreeding depression. Here I show the effect of forest fragmentation on the quality of seeds produced in Lapageria rosea, quality being measured as seed viability, seed size and seed germination. I collected seeds from the Maulino forest in central Chile, specifically from plants living in forest fragments and continued forest. Seed viability, seed size and seed germination capacity was estimated under laboratory conditions. Results indicated that seeds from forest fragments and from continuous forest have similar percentages of viability, although these percentages are more variable among fruits from forest fragments. Moreover, seeds from forest fragments are smaller than seeds from continuous forest. Finally, seeds from fragments have less germination capacity than seeds from continued forest. These reductions could determinate a negative effect on seedling establishment in fragmented populations and possibly in the long term population survival.

Idioma originalSpanish
Páginas (desde-hasta)177-184
Número de páginas8
PublicaciónRevista Chilena de Historia Natural
Volumen77
N.º1
EstadoPublished - mar 2004

Huella dactilar

Lapageria rosea
habitat fragmentation
seed quality
Ecosystem
Seeds
seed
seeds
seed size
Germination
viability
germination
seed germination
effect
fitness

ASJC Scopus subject areas

  • Environmental Science(all)
  • Agricultural and Biological Sciences(all)

Citar esto

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title = "Efecto de la fragmentaci{\'o}n del h{\'a}bitat sobre la calidad de las semillas en Lapageria rosea",
abstract = "Habitat fragmentation is commonly associated to a reduction in plant fitness, because the reduction in the number of seeds produced. However habitat fragmentation might also affect plant fitness through a reduction in the quality of the seeds produced, as for example in seed viability, seed size or in seed germination. These factors could be affected because small populations size and high degree in isolation, frequently found in fragments, could induce to the loss of genetic population variability and the expression of inbreeding depression. Here I show the effect of forest fragmentation on the quality of seeds produced in Lapageria rosea, quality being measured as seed viability, seed size and seed germination. I collected seeds from the Maulino forest in central Chile, specifically from plants living in forest fragments and continued forest. Seed viability, seed size and seed germination capacity was estimated under laboratory conditions. Results indicated that seeds from forest fragments and from continuous forest have similar percentages of viability, although these percentages are more variable among fruits from forest fragments. Moreover, seeds from forest fragments are smaller than seeds from continuous forest. Finally, seeds from fragments have less germination capacity than seeds from continued forest. These reductions could determinate a negative effect on seedling establishment in fragmented populations and possibly in the long term population survival.",
keywords = "Central Chile, Habitat fragmentation, Lapageria rosea, Seeds",
author = "Henr{\'i}quez, {Carolina A.}",
year = "2004",
month = "3",
language = "Spanish",
volume = "77",
pages = "177--184",
journal = "Revista Chilena de Historia Natural",
issn = "0716-078X",
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TY - JOUR

T1 - Efecto de la fragmentación del hábitat sobre la calidad de las semillas en Lapageria rosea

AU - Henríquez, Carolina A.

PY - 2004/3

Y1 - 2004/3

N2 - Habitat fragmentation is commonly associated to a reduction in plant fitness, because the reduction in the number of seeds produced. However habitat fragmentation might also affect plant fitness through a reduction in the quality of the seeds produced, as for example in seed viability, seed size or in seed germination. These factors could be affected because small populations size and high degree in isolation, frequently found in fragments, could induce to the loss of genetic population variability and the expression of inbreeding depression. Here I show the effect of forest fragmentation on the quality of seeds produced in Lapageria rosea, quality being measured as seed viability, seed size and seed germination. I collected seeds from the Maulino forest in central Chile, specifically from plants living in forest fragments and continued forest. Seed viability, seed size and seed germination capacity was estimated under laboratory conditions. Results indicated that seeds from forest fragments and from continuous forest have similar percentages of viability, although these percentages are more variable among fruits from forest fragments. Moreover, seeds from forest fragments are smaller than seeds from continuous forest. Finally, seeds from fragments have less germination capacity than seeds from continued forest. These reductions could determinate a negative effect on seedling establishment in fragmented populations and possibly in the long term population survival.

AB - Habitat fragmentation is commonly associated to a reduction in plant fitness, because the reduction in the number of seeds produced. However habitat fragmentation might also affect plant fitness through a reduction in the quality of the seeds produced, as for example in seed viability, seed size or in seed germination. These factors could be affected because small populations size and high degree in isolation, frequently found in fragments, could induce to the loss of genetic population variability and the expression of inbreeding depression. Here I show the effect of forest fragmentation on the quality of seeds produced in Lapageria rosea, quality being measured as seed viability, seed size and seed germination. I collected seeds from the Maulino forest in central Chile, specifically from plants living in forest fragments and continued forest. Seed viability, seed size and seed germination capacity was estimated under laboratory conditions. Results indicated that seeds from forest fragments and from continuous forest have similar percentages of viability, although these percentages are more variable among fruits from forest fragments. Moreover, seeds from forest fragments are smaller than seeds from continuous forest. Finally, seeds from fragments have less germination capacity than seeds from continued forest. These reductions could determinate a negative effect on seedling establishment in fragmented populations and possibly in the long term population survival.

KW - Central Chile

KW - Habitat fragmentation

KW - Lapageria rosea

KW - Seeds

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JO - Revista Chilena de Historia Natural

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