The soil seed bank in abandoned tropical pastures: source of regeneration or invasion?
We assessed the availability of both pioneer and non-native species in the soil seed bank of old-growth forest and recently abandoned pasture, to evaluate whether the soil seed bank in these pastures represents a source of regeneration of species from adjacent old-growth forest or of invasion by non...
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Universidad Nacional Autónoma de México
2011-06-01
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| Series: | Revista Mexicana de Biodiversidad |
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| Online Access: | https://revista.ib.unam.mx/index.php/bio/article/view/462 |
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| author | Leonel López-Toledo Miguel Martínez-Ramos |
| author_facet | Leonel López-Toledo Miguel Martínez-Ramos |
| author_sort | Leonel López-Toledo |
| collection | DOAJ |
| description | We assessed the availability of both pioneer and non-native species in the soil seed bank of old-growth
forest and recently abandoned pasture, to evaluate whether the soil seed bank in these pastures represents a source of
regeneration of species from adjacent old-growth forest or of invasion by non-native species. Our study was conducted
at Selva Lacandona, Chiapas, Mexico. Soil samples were randomly collected from 6 sites in old-growth forest, and 6
sites in abandoned pastures. Seedlings from soil samples were identified and classified into pioneer, non-native (weeds/
graminoids), and other forest species. Pioneer species seeds were virtually absent in pastures, but represented ~30%
of seeds in the forest. Non-native species comprised ~99% of the soil seed bank in pastures. In the forest, soil seed
bank density of weeds and graminoids decreased with increasing distance (up to 4 km) from agricultural fields, and
comprised up to 25% (Mean ± 1SE= 16 ± 7) of the seed bank. Our results show a near total elimination of pioneer
species from the soil seed bank in pastures, and considerable invasion of the borders of the Montes Azules reserve by
seeds of non-native species. Thus, in the region studied, the soil seed bank in abandoned pastures represents a source of
invasion by non-native species into old-growth forest rather than a potential source of forest regeneration. |
| format | Article |
| id | doaj-art-02a9c0f19db94f96aba4b8aae976463b |
| institution | DOAJ |
| issn | 1870-3453 2007-8706 |
| language | English |
| publishDate | 2011-06-01 |
| publisher | Universidad Nacional Autónoma de México |
| record_format | Article |
| series | Revista Mexicana de Biodiversidad |
| spelling | doaj-art-02a9c0f19db94f96aba4b8aae976463b2025-08-20T02:59:04ZengUniversidad Nacional Autónoma de MéxicoRevista Mexicana de Biodiversidad1870-34532007-87062011-06-0182210.22201/ib.20078706e.2011.2.462The soil seed bank in abandoned tropical pastures: source of regeneration or invasion?Leonel López-ToledoMiguel Martínez-RamosWe assessed the availability of both pioneer and non-native species in the soil seed bank of old-growth forest and recently abandoned pasture, to evaluate whether the soil seed bank in these pastures represents a source of regeneration of species from adjacent old-growth forest or of invasion by non-native species. Our study was conducted at Selva Lacandona, Chiapas, Mexico. Soil samples were randomly collected from 6 sites in old-growth forest, and 6 sites in abandoned pastures. Seedlings from soil samples were identified and classified into pioneer, non-native (weeds/ graminoids), and other forest species. Pioneer species seeds were virtually absent in pastures, but represented ~30% of seeds in the forest. Non-native species comprised ~99% of the soil seed bank in pastures. In the forest, soil seed bank density of weeds and graminoids decreased with increasing distance (up to 4 km) from agricultural fields, and comprised up to 25% (Mean ± 1SE= 16 ± 7) of the seed bank. Our results show a near total elimination of pioneer species from the soil seed bank in pastures, and considerable invasion of the borders of the Montes Azules reserve by seeds of non-native species. Thus, in the region studied, the soil seed bank in abandoned pastures represents a source of invasion by non-native species into old-growth forest rather than a potential source of forest regeneration.https://revista.ib.unam.mx/index.php/bio/article/view/462Cecropiatropical rain forestSelva LacandonaChiapaspioneer regenerationweed invasion |
| spellingShingle | Leonel López-Toledo Miguel Martínez-Ramos The soil seed bank in abandoned tropical pastures: source of regeneration or invasion? Revista Mexicana de Biodiversidad Cecropia tropical rain forest Selva Lacandona Chiapas pioneer regeneration weed invasion |
| title | The soil seed bank in abandoned tropical pastures: source of regeneration or invasion? |
| title_full | The soil seed bank in abandoned tropical pastures: source of regeneration or invasion? |
| title_fullStr | The soil seed bank in abandoned tropical pastures: source of regeneration or invasion? |
| title_full_unstemmed | The soil seed bank in abandoned tropical pastures: source of regeneration or invasion? |
| title_short | The soil seed bank in abandoned tropical pastures: source of regeneration or invasion? |
| title_sort | soil seed bank in abandoned tropical pastures source of regeneration or invasion |
| topic | Cecropia tropical rain forest Selva Lacandona Chiapas pioneer regeneration weed invasion |
| url | https://revista.ib.unam.mx/index.php/bio/article/view/462 |
| work_keys_str_mv | AT leonellopeztoledo thesoilseedbankinabandonedtropicalpasturessourceofregenerationorinvasion AT miguelmartinezramos thesoilseedbankinabandonedtropicalpasturessourceofregenerationorinvasion AT leonellopeztoledo soilseedbankinabandonedtropicalpasturessourceofregenerationorinvasion AT miguelmartinezramos soilseedbankinabandonedtropicalpasturessourceofregenerationorinvasion |