Behavioral maturation and learning in the bumblebee Bombus occidentalis (Hymenoptera: Apidae)

Andre Josafat Riveros Rivera, Wulfila Gronenberg

Resultado de la investigación: Tipos de Contribuciónes en ConferenciaAfiche

1 Cita (Scopus)

Resumen

Age-dependent division of labor is a common feature of social organization in the honeybee Apis mellifera. In this species, young workers (nurses) perform duties inside the nest, whereas their older sisters (foragers) perform tasks outside the nest. Transitions between tasks rely on cognitive abilities such as learning and memory and on maturation of the nervous system. For instance, performance of associative tasks is significantly better in foragers than in nurses or one-day-old bees (Ichikawa and Sasaki 2003 Appl. Entomol. Zool. 38:203-209). Unlike honeybees, bumblebee colonies are characterized by a wide variation in body size of workers. Large workers usually forage whereas small bees serve as nurses. Here, we test whether learning abilities in an olfactory conditioning paradigm correlate with age or body size in the bumblebee B. occidentalis. We trained workers of different sizes and ages (one day to four weeks old) to associate an odor and a sugar-water reward in the proboscis extension reflex paradigm (up to 20 trials). Once established, memory retention was tested after two and five hours. We did not find any statistically significant correlation of learning ability with age or body size. However, we did find increased memory retention in larger bees (p< 0.05). Our data suggest a correlation between a species' division of labor and cognitive abilities. Bumblebees and honeybees differ in their social structure and this difference is clearly reflected at a cognitive level. In contrast to honeybees, young workers of B. occidentalis are mature enough to forage. Moreover, larger bumblebees have a longer memory span than small ones, which is advantageous for foraging, their preferred task. We conclude that in both, A. mellifera and B. occidentalis, learning abilities of the worker caste are correlated with division of labor and probably reflect the cognitive challenge of different tasks.
Idioma originalEnglish
EstadoPublished - 2006
EventoThe IUSSI 2006 Congress - Washington, DC
Duración: jul 30 2006ago 4 2006
Número de conferencia: 15
https://iussi.confex.com/iussi/2006/techprogram/P1708.HTM

Conference

ConferenceThe IUSSI 2006 Congress
PaísUnited States
CiudadWashington, DC
Período7/30/068/4/06
Dirección de internet

Citar esto

Riveros Rivera, A. J., & Gronenberg, W. (2006). Behavioral maturation and learning in the bumblebee Bombus occidentalis (Hymenoptera: Apidae). Sesión de cárteles presentada en The IUSSI 2006 Congress, Washington, DC, .
Riveros Rivera, Andre Josafat ; Gronenberg, Wulfila. / Behavioral maturation and learning in the bumblebee Bombus occidentalis (Hymenoptera: Apidae). Sesión de cárteles presentada en The IUSSI 2006 Congress, Washington, DC, .
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abstract = "Age-dependent division of labor is a common feature of social organization in the honeybee Apis mellifera. In this species, young workers (nurses) perform duties inside the nest, whereas their older sisters (foragers) perform tasks outside the nest. Transitions between tasks rely on cognitive abilities such as learning and memory and on maturation of the nervous system. For instance, performance of associative tasks is significantly better in foragers than in nurses or one-day-old bees (Ichikawa and Sasaki 2003 Appl. Entomol. Zool. 38:203-209). Unlike honeybees, bumblebee colonies are characterized by a wide variation in body size of workers. Large workers usually forage whereas small bees serve as nurses. Here, we test whether learning abilities in an olfactory conditioning paradigm correlate with age or body size in the bumblebee B. occidentalis. We trained workers of different sizes and ages (one day to four weeks old) to associate an odor and a sugar-water reward in the proboscis extension reflex paradigm (up to 20 trials). Once established, memory retention was tested after two and five hours. We did not find any statistically significant correlation of learning ability with age or body size. However, we did find increased memory retention in larger bees (p< 0.05). Our data suggest a correlation between a species' division of labor and cognitive abilities. Bumblebees and honeybees differ in their social structure and this difference is clearly reflected at a cognitive level. In contrast to honeybees, young workers of B. occidentalis are mature enough to forage. Moreover, larger bumblebees have a longer memory span than small ones, which is advantageous for foraging, their preferred task. We conclude that in both, A. mellifera and B. occidentalis, learning abilities of the worker caste are correlated with division of labor and probably reflect the cognitive challenge of different tasks.",
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Riveros Rivera, AJ & Gronenberg, W 2006, 'Behavioral maturation and learning in the bumblebee Bombus occidentalis (Hymenoptera: Apidae)', The IUSSI 2006 Congress, Washington, DC, 7/30/06 - 8/4/06.

Behavioral maturation and learning in the bumblebee Bombus occidentalis (Hymenoptera: Apidae). / Riveros Rivera, Andre Josafat; Gronenberg, Wulfila.

2006. Sesión de cárteles presentada en The IUSSI 2006 Congress, Washington, DC, .

Resultado de la investigación: Tipos de Contribuciónes en ConferenciaAfiche

TY - CONF

T1 - Behavioral maturation and learning in the bumblebee Bombus occidentalis (Hymenoptera: Apidae)

AU - Riveros Rivera, Andre Josafat

AU - Gronenberg, Wulfila

PY - 2006

Y1 - 2006

N2 - Age-dependent division of labor is a common feature of social organization in the honeybee Apis mellifera. In this species, young workers (nurses) perform duties inside the nest, whereas their older sisters (foragers) perform tasks outside the nest. Transitions between tasks rely on cognitive abilities such as learning and memory and on maturation of the nervous system. For instance, performance of associative tasks is significantly better in foragers than in nurses or one-day-old bees (Ichikawa and Sasaki 2003 Appl. Entomol. Zool. 38:203-209). Unlike honeybees, bumblebee colonies are characterized by a wide variation in body size of workers. Large workers usually forage whereas small bees serve as nurses. Here, we test whether learning abilities in an olfactory conditioning paradigm correlate with age or body size in the bumblebee B. occidentalis. We trained workers of different sizes and ages (one day to four weeks old) to associate an odor and a sugar-water reward in the proboscis extension reflex paradigm (up to 20 trials). Once established, memory retention was tested after two and five hours. We did not find any statistically significant correlation of learning ability with age or body size. However, we did find increased memory retention in larger bees (p< 0.05). Our data suggest a correlation between a species' division of labor and cognitive abilities. Bumblebees and honeybees differ in their social structure and this difference is clearly reflected at a cognitive level. In contrast to honeybees, young workers of B. occidentalis are mature enough to forage. Moreover, larger bumblebees have a longer memory span than small ones, which is advantageous for foraging, their preferred task. We conclude that in both, A. mellifera and B. occidentalis, learning abilities of the worker caste are correlated with division of labor and probably reflect the cognitive challenge of different tasks.

AB - Age-dependent division of labor is a common feature of social organization in the honeybee Apis mellifera. In this species, young workers (nurses) perform duties inside the nest, whereas their older sisters (foragers) perform tasks outside the nest. Transitions between tasks rely on cognitive abilities such as learning and memory and on maturation of the nervous system. For instance, performance of associative tasks is significantly better in foragers than in nurses or one-day-old bees (Ichikawa and Sasaki 2003 Appl. Entomol. Zool. 38:203-209). Unlike honeybees, bumblebee colonies are characterized by a wide variation in body size of workers. Large workers usually forage whereas small bees serve as nurses. Here, we test whether learning abilities in an olfactory conditioning paradigm correlate with age or body size in the bumblebee B. occidentalis. We trained workers of different sizes and ages (one day to four weeks old) to associate an odor and a sugar-water reward in the proboscis extension reflex paradigm (up to 20 trials). Once established, memory retention was tested after two and five hours. We did not find any statistically significant correlation of learning ability with age or body size. However, we did find increased memory retention in larger bees (p< 0.05). Our data suggest a correlation between a species' division of labor and cognitive abilities. Bumblebees and honeybees differ in their social structure and this difference is clearly reflected at a cognitive level. In contrast to honeybees, young workers of B. occidentalis are mature enough to forage. Moreover, larger bumblebees have a longer memory span than small ones, which is advantageous for foraging, their preferred task. We conclude that in both, A. mellifera and B. occidentalis, learning abilities of the worker caste are correlated with division of labor and probably reflect the cognitive challenge of different tasks.

M3 - Afiche

C2 - PMC2914411

ER -

Riveros Rivera AJ, Gronenberg W. Behavioral maturation and learning in the bumblebee Bombus occidentalis (Hymenoptera: Apidae). 2006. Sesión de cárteles presentada en The IUSSI 2006 Congress, Washington, DC, .