Cattle affect regeneration of the palm species Attalea princeps in a Bolivian forest–savanna mosaic

Iris Hordijk, Fabian Meijer, Esther Nissen, Tjalle Boorsma, Lourens Poorter

Research output: Contribution to journalArticleAcademicpeer-review

2 Citations (Scopus)

Abstract

Attalea princeps is an important palm species that shapes the forest–savanna mosaic in Beni, Bolivia, as it dominates the two principal forest landscape elements (forest islands and gallery forest), and provides a vital microhabitat, food, and nesting source for numerous plant and animal species. The forest–savanna mosaic is used for extensive grazing, and the palm population is declining on the forest islands due to a low regeneration rate, which threatens the maintenance of this landscape. We therefore examined the (a)biotic factors that influence the population structure of Attalea in the centers and edges of forest islands and gallery forests. Ninety-one 0.1-ha plots were established, and 500 palm adults and 3,700 juveniles were measured for their size, health condition, and fire damage. For each plot, habitat characteristics, such as landscape position, grazing pressure, and soil conditions, were measured. Attalea population density was significantly lower on the forest islands than in the gallery forests, especially in the juvenile life stage. A structural equation model showed that juvenile density is positively related to the health condition of juveniles and amount of fruits present, where the amount of fruits is positively affected by the condition of adults. Juvenile density is negatively influenced by grazing, affecting the health condition of the juvenile, as well as organic matter and phosphate availability in the soil. Therefore, it is recommended to decrease the grazing pressure by decreasing livestock densities, fencing off vulnerable forest islands, or by rotating cattle.Abstract in Spanish is available with online material.

LanguageEnglish
Pages28-38
JournalBiotropica
Volume51
Issue number1
Early online date16 Jan 2019
DOIs
Publication statusPublished - Jan 2019

Fingerprint

Attalea phalerata
savanna
savannas
cattle
regeneration
Attalea
grazing
grazing pressure
grounds maintenance
mosaic
fruit
landscape position
fruits
biotic factor
Bolivia
edge effects
microhabitats

Keywords

  • Beni savanna
  • Bolivia
  • landscape mosaic
  • Llanos de Moxos
  • Motacú palm

Cite this

Hordijk, Iris ; Meijer, Fabian ; Nissen, Esther ; Boorsma, Tjalle ; Poorter, Lourens. / Cattle affect regeneration of the palm species Attalea princeps in a Bolivian forest–savanna mosaic. In: Biotropica. 2019 ; Vol. 51, No. 1. pp. 28-38.
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Cattle affect regeneration of the palm species Attalea princeps in a Bolivian forest–savanna mosaic. / Hordijk, Iris; Meijer, Fabian; Nissen, Esther; Boorsma, Tjalle; Poorter, Lourens.

In: Biotropica, Vol. 51, No. 1, 01.2019, p. 28-38.

Research output: Contribution to journalArticleAcademicpeer-review

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AU - Poorter, Lourens

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