Foraging Oxaea flavescens bees as a function of the dynamics of abiotic factors and food resource availability from Styrax camporum flowers

We examined the abiotic factors and co-specific competition for food resources that regulate the foraging activity of Oxaea flavescens bees on Styrax camporum flowers. Foraging records were gathered during 20 min. periods at the beginning of each hour between 05:00h and 18:00h during three nonconse...

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Main Authors: Leandro Pereira Polatto, Valter Vieira Alves Junior
Format: Article
Language:English
Published: Universidade Estadual de Maringá 2022-07-01
Series:Acta Scientiarum: Biological Sciences
Subjects:
Online Access:https://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/58568
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author Leandro Pereira Polatto
Valter Vieira Alves Junior
author_facet Leandro Pereira Polatto
Valter Vieira Alves Junior
author_sort Leandro Pereira Polatto
collection DOAJ
description We examined the abiotic factors and co-specific competition for food resources that regulate the foraging activity of Oxaea flavescens bees on Styrax camporum flowers. Foraging records were gathered during 20 min. periods at the beginning of each hour between 05:00h and 18:00h during three nonconsecutive days. Pearson correlation and linear regression tests indicated that the foraging activity of O. flavescens was associated with abiotic factors during the day. O. flavescens represented 89.9% of the observed foraging visits to S. camporum flowers. On the first day of sampling, when environmental conditions were stressful, the foraging activity of O. flavescens was significantly negatively correlated with light intensity, wind speed, and temperature, and positively correlated with relative humidity. Under those conditions, optimal foraging was little affected by the availability of floral resources. On the second and third days, however, when environmental conditions were more favorable, the principal limiting factor of O. flavescens foraging activity was nectar depletion. The maximum peak of foraging under those conditions occurred before the abiotic conditions were fully favorable, however, as the eventual depletion of floral resources resulted in unfavorable cost/benefit implications for foraging during the otherwise most adequate daylight period.
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spelling doaj.art-94d7b94631a74d018eb01ba8f3d4bdac2022-12-22T02:49:52ZengUniversidade Estadual de MaringáActa Scientiarum: Biological Sciences1679-92831807-863X2022-07-0144110.4025/actascibiolsci.v44i1.58568Foraging Oxaea flavescens bees as a function of the dynamics of abiotic factors and food resource availability from Styrax camporum flowers Leandro Pereira Polatto0Valter Vieira Alves Junior1Universidade Federal da Grande DouradosUniversidade Federal da Grande Dourados We examined the abiotic factors and co-specific competition for food resources that regulate the foraging activity of Oxaea flavescens bees on Styrax camporum flowers. Foraging records were gathered during 20 min. periods at the beginning of each hour between 05:00h and 18:00h during three nonconsecutive days. Pearson correlation and linear regression tests indicated that the foraging activity of O. flavescens was associated with abiotic factors during the day. O. flavescens represented 89.9% of the observed foraging visits to S. camporum flowers. On the first day of sampling, when environmental conditions were stressful, the foraging activity of O. flavescens was significantly negatively correlated with light intensity, wind speed, and temperature, and positively correlated with relative humidity. Under those conditions, optimal foraging was little affected by the availability of floral resources. On the second and third days, however, when environmental conditions were more favorable, the principal limiting factor of O. flavescens foraging activity was nectar depletion. The maximum peak of foraging under those conditions occurred before the abiotic conditions were fully favorable, however, as the eventual depletion of floral resources resulted in unfavorable cost/benefit implications for foraging during the otherwise most adequate daylight period. https://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/58568Nectar depletion; thermal stress; optimal foraging; thermoregulation.
spellingShingle Leandro Pereira Polatto
Valter Vieira Alves Junior
Foraging Oxaea flavescens bees as a function of the dynamics of abiotic factors and food resource availability from Styrax camporum flowers
Acta Scientiarum: Biological Sciences
Nectar depletion; thermal stress; optimal foraging; thermoregulation.
title Foraging Oxaea flavescens bees as a function of the dynamics of abiotic factors and food resource availability from Styrax camporum flowers
title_full Foraging Oxaea flavescens bees as a function of the dynamics of abiotic factors and food resource availability from Styrax camporum flowers
title_fullStr Foraging Oxaea flavescens bees as a function of the dynamics of abiotic factors and food resource availability from Styrax camporum flowers
title_full_unstemmed Foraging Oxaea flavescens bees as a function of the dynamics of abiotic factors and food resource availability from Styrax camporum flowers
title_short Foraging Oxaea flavescens bees as a function of the dynamics of abiotic factors and food resource availability from Styrax camporum flowers
title_sort foraging oxaea flavescens bees as a function of the dynamics of abiotic factors and food resource availability from styrax camporum flowers
topic Nectar depletion; thermal stress; optimal foraging; thermoregulation.
url https://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/58568
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AT valtervieiraalvesjunior foragingoxaeaflavescensbeesasafunctionofthedynamicsofabioticfactorsandfoodresourceavailabilityfromstyraxcamporumflowers