Climbers from montane areas of Northwestern Argentina
Ayarde, H.R. Climbers from montane areas of Northwestern Argentina. The humid regions of the mountains of northwestern Argentina are among the areas of highest biodiversity in the country. This fact, verifiable for diverse biological types, is especially true for climbers, with a record of 323 species and 15 varieties, belonging to 118 genera and 39 families. This contribution shows, as main results: ? Asclepiadaceae and Fabaceae are the families with the highest number of genera and species. On the other hand, Ipomoea (Convolvulaceae) and Dioscorea (Dioscoreaceae) are the most diverse genera. ? About 22% of the recorded species are endemic of the region. ? Functional annual species (herbaceous) twice in number the perennials.(woody) ? There are nine mechanisms for climbing, being twining (63%) the most common. ? 78% of flowering occurs during the rainy season, with peaks in January and February, while fruiting occurs between April and June. ? Species number decreases altitudinally and latitudinally. ? Approximately 41% of the montane forests climbers of NW Argentina are also present in the forest of the Northeast of the country.
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Fundación Miguel Lillo
2005
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rev-lilloa-ar-article-6622020-08-03T14:59:48Z Climbers from montane areas of Northwestern Argentina Vegetación lianescente de las áreas montanas del noroeste de Argentina Ayarde, Hugo R. Lianas y enredaderas selvas de montaña Argentina Climbers mountains forest Argentina Ayarde, H.R. Climbers from montane areas of Northwestern Argentina. The humid regions of the mountains of northwestern Argentina are among the areas of highest biodiversity in the country. This fact, verifiable for diverse biological types, is especially true for climbers, with a record of 323 species and 15 varieties, belonging to 118 genera and 39 families. This contribution shows, as main results: ? Asclepiadaceae and Fabaceae are the families with the highest number of genera and species. On the other hand, Ipomoea (Convolvulaceae) and Dioscorea (Dioscoreaceae) are the most diverse genera. ? About 22% of the recorded species are endemic of the region. ? Functional annual species (herbaceous) twice in number the perennials.(woody) ? There are nine mechanisms for climbing, being twining (63%) the most common. ? 78% of flowering occurs during the rainy season, with peaks in January and February, while fruiting occurs between April and June. ? Species number decreases altitudinally and latitudinally. ? Approximately 41% of the montane forests climbers of NW Argentina are also present in the forest of the Northeast of the country. Ayarde, H.R. Vegetación lianescente de las áreas montanas del noroeste de Argentina. Las áreas montanas húmedas del noroeste constituyen una de las regiones de mayor biodiversidad de Argentina. De acuerdo a los resultados de este estudio, esto -reconocido para distintos tipos biológicos- es también extensible a la vegetación lianescente (trepadoras leñosas, trepadoras herbáceas y arbustos apoyantes). En efecto, en este estudio, realizado mayoritariamente sobre la base de material depositado en el Herbario de la Fundación Miguel Lillo (LIL), se registraron 323 especies y 15 variedades, pertenecientes a 118 géneros y 39 familias. Las principales características de este tipo biológico en las selvas de montaña de Argentina son las siguientes: ? Asclepiadaceae y Fabaceae son las familias mejor representadas, mientras que Ipomoea (Convolvulaceae) y Dioscorea (Dioscoreaceae) son los géneros con mayor número de especies. ? Alrededor del 22% de las especies registradas son endémicas de la región. ? Las especies funcionalmente anuales (herbáceas y subleñosas) doblan en cantidad a las perennes (leñosas). ? Se identificaron nueve mecanismos utilizados para trepar, de los cuales las espiras (63%) es el más común. ? El grueso de la floración (78%) ocurre en el período lluvioso, con picos entre enero y febrero, mientras que la fructificación se extiende entre finales del período lluvioso y el período libre de lluvias, con valores máximos entre abril y junio. ? Hay notable disminución altitudinal y latitudinal del número de especies, mientras que a nivel regional una alta proporción de las especies (alrededor del 41%) se encuentran también en las selvas del noreste de Argentina. Fundación Miguel Lillo 2005-12-07 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf http://www.lillo.org.ar/journals/index.php/lilloa/article/view/662 Lilloa; Lilloa 42 (1-2) (2005); 95-128 Lilloa; Lilloa 42 (1-2) (2005); 95-128 2346-9641 spa http://www.lillo.org.ar/journals/index.php/lilloa/article/view/662/660 Derechos de autor 2005 Fundación Miguel Lillo |
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America del Sur |
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Biblioteca de la Fundación Miguel Lillo de AR |
| language |
spa |
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Digital |
| author |
Ayarde, Hugo R. |
| spellingShingle |
Ayarde, Hugo R. Climbers from montane areas of Northwestern Argentina |
| author_facet |
Ayarde, Hugo R. |
| author_sort |
Ayarde, Hugo R. |
| title |
Climbers from montane areas of Northwestern Argentina |
| title_short |
Climbers from montane areas of Northwestern Argentina |
| title_full |
Climbers from montane areas of Northwestern Argentina |
| title_fullStr |
Climbers from montane areas of Northwestern Argentina |
| title_full_unstemmed |
Climbers from montane areas of Northwestern Argentina |
| title_sort |
climbers from montane areas of northwestern argentina |
| description |
Ayarde, H.R. Climbers from montane areas of Northwestern Argentina. The humid regions of the mountains of northwestern Argentina are among the areas of highest biodiversity in the country. This fact, verifiable for diverse biological types, is especially true for climbers, with a record of 323 species and 15 varieties, belonging to 118 genera and 39 families. This contribution shows, as main results: ? Asclepiadaceae and Fabaceae are the families with the highest number of genera and species. On the other hand, Ipomoea (Convolvulaceae) and Dioscorea (Dioscoreaceae) are the most diverse genera. ? About 22% of the recorded species are endemic of the region. ? Functional annual species (herbaceous) twice in number the perennials.(woody) ? There are nine mechanisms for climbing, being twining (63%) the most common. ? 78% of flowering occurs during the rainy season, with peaks in January and February, while fruiting occurs between April and June. ? Species number decreases altitudinally and latitudinally. ? Approximately 41% of the montane forests climbers of NW Argentina are also present in the forest of the Northeast of the country. |
| publisher |
Fundación Miguel Lillo |
| publishDate |
2005 |
| url |
http://www.lillo.org.ar/journals/index.php/lilloa/article/view/662 |
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AT ayardehugor climbersfrommontaneareasofnorthwesternargentina AT ayardehugor vegetacionlianescentedelasareasmontanasdelnoroestedeargentina |
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