Scholarlink

<p>Insect pollinators contribute to more than just agriculture and food production; they are also vital for maintaining plant biodiversity and ecosystem functioning. <i>Xylocopa olivacea</i> is a large carpenter bee known to pollinate many tropical crops, yet its role on <i>Hibiscus sabdariffa</i>, an important cultivated plant in the region, has not been fully documented. This study therefore examined the foraging and pollination activities of this bee at Meskine (Maroua, Cameroon) during the June 2018 and 2019 cropping seasons, in order to evaluate its effect on fruit and seed yields of the crop.The experiments involved 540 flowers, divided into four treatments: unbagged flowers, bagged flowers, bagged flowers exposed to a single visit from <i>X. olivacea</i>, and bagged flowers that were uncovered and rebagged without any insect or other life form visit to exclude the effect of hand manipulation. The daily rhythm of activity, foraging behaviour, and pollination efficiency of <i>X. olivacea</i> (fruiting rate, number of seeds per fruit, and percentage of normal seeds) were evaluated. Results indicated that <i>X. olivacea</i> foraged on Roselle flowers throughout the blooming period. accounting for 40.89% of the 1670 recorded insect, collecting both nectar and pollen. The fruiting rate of unbagged flowers was significantly higher than that of bagged flowers. <i>Xylocopa olivacea</i> induced a significant increase in the fruiting rate by 49.98%, the number of seeds per fruit by 5.40%, and the percentage of mature seeds by 13.99%. Thus, conserving <i>X. olivacea</i> nests near <i>H. sabdariffa</i> fields can enhance fruit and seed production in the region.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Contribution of Xylocopa olivacea (Hymenoptera: Apidae) on fruit and seed production of Roselle (Hibiscus sabdariffa L.) (Malvaceae) at Meskine (Maroua, Cameroon)

  • 期刊论文

  • 发表日期：

    2026年7月23日

查看全文
  • Aminou Yougouda,
  • Sidonie Fameni Topé,
  • Beaudelaine Stephanie Kengni,
  • Fernand-Nestor Tchuenguem Fohouo

摘要

Insect pollinators contribute to more than just agriculture and food production; they are also vital for maintaining plant biodiversity and ecosystem functioning. Xylocopa olivacea is a large carpenter bee known to pollinate many tropical crops, yet its role on Hibiscus sabdariffa, an important cultivated plant in the region, has not been fully documented. This study therefore examined the foraging and pollination activities of this bee at Meskine (Maroua, Cameroon) during the June 2018 and 2019 cropping seasons, in order to evaluate its effect on fruit and seed yields of the crop.The experiments involved 540 flowers, divided into four treatments: unbagged flowers, bagged flowers, bagged flowers exposed to a single visit from X. olivacea, and bagged flowers that were uncovered and rebagged without any insect or other life form visit to exclude the effect of hand manipulation. The daily rhythm of activity, foraging behaviour, and pollination efficiency of X. olivacea (fruiting rate, number of seeds per fruit, and percentage of normal seeds) were evaluated. Results indicated that X. olivacea foraged on Roselle flowers throughout the blooming period. accounting for 40.89% of the 1670 recorded insect, collecting both nectar and pollen. The fruiting rate of unbagged flowers was significantly higher than that of bagged flowers. Xylocopa olivacea induced a significant increase in the fruiting rate by 49.98%, the number of seeds per fruit by 5.40%, and the percentage of mature seeds by 13.99%. Thus, conserving X. olivacea nests near H. sabdariffa fields can enhance fruit and seed production in the region.