Relationships Between Inflorescences and Pollinators and Their Effects on Bunch Components in <i>Elaeis guineensis,</i> in Colombia

Montes-Bazurto, Luis Guillermo; Sánchez, Luz Ángela; Prada, Fausto; Daza, Edison Steve; Bustillo-Pardey, Alex Enrique; Romero, Hernán Mauricio

doi:10.18474/jes18-06.1

Cited by 5 publications

(2 citation statements)

References 4 publications

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“…For example, several studies have reported a decline in the pollinating activity of the Asian populations during heavy rainy seasons (Syed et al ., 1982; Mariau & Genty, 1988; Sambathkumar and Ranjith, 2011; Nurul Fatihah et al ., 2019). Conversely, dry seasons can negatively affect population densities (Chinchilla and Richardson, 1989; Dhileepan, 1994; Labarca and Narvaez, 2009; Sambathkumar and Ranjith, 2011; Montes Bazurto et al ., 2018). All together these studies and our results suggest that E. kamerunicus only tolerates a specific moisture range and can be limited in its dispersal by unfavourable climatic environments.…”

Section: Discussionmentioning

confidence: 99%

Multilocus phylogeography of the world populations of Elaeidobius kamerunicus (Coleoptera, Curculionidae), pollinator of the palm Elaeis guineensis

Haran

Abanda

Benoit

et al. 2020

Bull. Entomol. Res.

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Elaeidobius kamerunicus Faust (Coleoptera, Curculionidae) is one of the specific pollinators on inflorescences of the African oil palm Elaeis guineensis Jacquin. This derelomine weevil is native to tropical Africa. During the late 20th century, it was introduced into all tropical regions where E. guineensis is grown, in order to improve its pollination and fruit set. Despite an overall success, a decline in pollination efficiency has been documented in several regions. In this study, we reconstructed a multilocus phylogeography of the world populations of E. kamerunicus, in order to explore its genetic diversity in its native and introduced ranges. Our results showed that African populations of E. kamerunicus are forming two differentiated mitochondrial clusters in West and central Africa, forming a contact zone along the Cameroon Volcanic Line. The existence of this sharp contact zone along this weak altitudinal barrier suggests that other parameters, such as climate, may be driving the distribution of populations. A differential genetic structure between mitochondrial and nuclear genes, and the strong level of genetic structure of the mitochondrial gene, also suggest sex-biased dispersal in this species, with males dispersing more than females. The genetic structure inferred from Asian and South American populations suggests that they originate from populations of both western and central tropical Africa and that a bottleneck has probably been experienced by these populations.

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Section: Discussionmentioning

confidence: 99%

Multilocus phylogeography of the world populations of Elaeidobius kamerunicus (Coleoptera, Curculionidae), pollinator of the palm Elaeis guineensis

Haran

Abanda

Benoit

et al. 2020

Bull. Entomol. Res.

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“…Every 15 days from each cultivar, samples of E. kamerunicus were collected; six inflorescences from the cultivar at anthesis were selected (three male and three female). To estimate the abundance of pollinating insects at the inflorescences, a 5 × 5 cm white interception trap, made with Cartonplast (Compañia de Empaques, Itagui, Antioquia) with a layer of insect adhesive (Super tramp®, Inanalmet®, Bogotá, D.C.), was placed over each inflorescence (Montes et al, 2018) (Figure 3). Every 30 min, the number of E. kamerunicus captured per inflorescence was counted.…”

Section: Population Fluctuation Of E Kamerunicusmentioning

confidence: 99%

BIOLOGY AND BEHAVIOUR OF Elaeidobius kamerunicus FAUST, 1898 (COLEOPTERA: CURCULIONIDAE) IN TWO OIL PALM CULTIVARS IN COLOMBIA

CORRALES

2023

JOPR

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Elaeidobius kamerunicus is the most efficient and abundant pollinator in oil palm plantations.We recorded biweekly observations to understand the population behaviour, habits and biological features of E. kamerunicus, as well as the volatile organic compound profile emitted by the inflorescences of two oil palm cultivars. Samples of the male and female inflorescences during the anthesis of Elaeis guineensis and the hybrid Coari × La Mé were collected. Elaeidobius kamerunicus adults copulated between 9:30 and 11:30 hr, and the females oviposited on the stamens of the male flowers. The life cycle of E. kamerunicus from egg to pupa took 8.6 days, and the life expectancy of adult males and females was 40.8 and 51.4 days, respectively. The female oviposition rate was 1.3 eggs/day, with a development time of 0.5 days. Insects such as Pachycondyla harpax, Hololepta sp., and members of the Chrysopidae and Dermaptera families, as well as spiders and Pseudoscorpiones, predated on this species. The main compounds emitted by the male and female inflorescences were methyl salicylate, estragole, cis-Anethole, and trans-Anethole studied in these two cultivars.

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Critical factors limiting pollination success in oil palm: A systematic review

Tscharntke

Saintes

et al. 2019

Agriculture, Ecosystems & Environment

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Relationships Between Inflorescences and Pollinators and Their Effects on Bunch Components in Elaeis guineensis, in Colombia

Cited by 5 publications

References 4 publications

Multilocus phylogeography of the world populations of Elaeidobius kamerunicus (Coleoptera, Curculionidae), pollinator of the palm Elaeis guineensis

Multilocus phylogeography of the world populations of Elaeidobius kamerunicus (Coleoptera, Curculionidae), pollinator of the palm Elaeis guineensis

BIOLOGY AND BEHAVIOUR OF Elaeidobius kamerunicus FAUST, 1898 (COLEOPTERA: CURCULIONIDAE) IN TWO OIL PALM CULTIVARS IN COLOMBIA

Critical factors limiting pollination success in oil palm: A systematic review

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