Order of eclosion and reproductive differentiation in a social allodapine bee

Schwarz, Michael P.; O’Keefe, Kara J.

doi:10.1080/08927014.1991.9525371

Cited by 18 publications

(29 citation statements)

References 13 publications

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“…The replacement of the dominant female by a subordinate female is consistent with the hypothesis of an age-based dominance hierarchy, as occurs in other primitively eusocial bee species (Michener et al 1971, Kumar 1975, Eickwort 1986, Yanega 1989, Schwarz and O'Keefe 1991, Schwarz and Woods 1994, Arneson and Wcislo 2003, Augusto and Garófalo 2009, 2010. The reactivation and abandoning of nests by Euglossa melanotricha followed an asynchronous pattern, which suggests a lack of any systematic relationship with environmental factors.…”

Section: Reactivation and Nest Phenologysupporting

confidence: 83%

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Multifemale nests and social behavior in Euglossa melanotricha (Hymenoptera, Apidae, Euglossini)

Nascimento¹,

Andrade-Silva²

2012

JHR

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The nesting biology and social behavior of the euglossine bee species Euglossa melanotricha was analyzed based on the monitoring of eight nests found in man-made cavities and transferred to observation boxes. Euglossa melanotricha females usually construct their nests in cavities in the ground, in buildings, or in mounds. In this study, we present new data on the nesting biology of E. melanotricha. The process of reactivation of nests was commonly observed with one to three females participating in the reactivation. The duration of the process of reactivation ranged from 10 to 78 days (n = 31) and were longer during the rainy season. Time spent (in days) for provisioning, oviposition and closing a single cell was higher in reactivations that occurred during the dry period.151 emergences were observed (39 males and 112 females). 90 (80.3%) of the emerged females returned to the natal nest, but only 35 (38.9%) remained and actively participated in the construction and provisioning of cells. The other 55 abandoned the nests after several days without performing any work in the nest. Matrifilial nest structure was regulated by dominancesubordinate aggressive behavior among females, where the dominant female laid almost all eggs. Task allocation was recognized by behavioral characteristics, namely, agonism and oophagy in cells oviposited by other females. Euglossa melanotricha is multivoltine and its nesting is asynchronous with respect to season. Our observations suggest a primitively eusocial organization. These observations of E. melanotricha provide valuable information for comparison with other species of Euglossa in an evolutionary context.

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Section: Reactivation and Nest Phenologysupporting

confidence: 83%

“…Age and order of eclosion have been reported as determinant factors for task allocation in some species of primitively eusocial bees and wasps (Kumar 1975, Eickwort 1986, Yanega 1989, Schwarz and O'Keefe 1991, Schwarz and Woods 1994, Tsuji and Tsuji 2005, as in some Euglossa species.…”

Section: Social Structure and Female Behaviormentioning

confidence: 99%

Multifemale nests and social behavior in Euglossa melanotricha (Hymenoptera, Apidae, Euglossini)

Nascimento¹,

Andrade-Silva²

2012

JHR

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“…This result confirmed the hypothesis that age instead of size is the major proximate factor determining task allocation. Additionally, the replacement of the DF by the oldest subordinate female reinforces the idea of an age-based dominance hierarchy, as occurs in other primitively eusocial bee species (Michener et al, 1971;Kumar, 1975;Eickwort, 1986;Yanega, 1989;Schwarz and O'Keefe, 1991;Schwarz and Woods, 1994;Anerson and Wcislo, 2003;Augusto and Garófalo, 2009). …”

Section: Discussionmentioning

confidence: 52%

“…Age and order of eclosion have been reported as determinant factors for task allocation in some species of primitively eusocial bees and wasps (Kumar, 1975;Eickwort, 1986;Yanega, 1989;Schwarz and O'Keefe, 1991;Schwarz and Woods, 1994;Tsuji and Tsuji, 2005), as in some Euglossa species. There are indications, moreover, that body size also influences the tasks assumed by females in social nests (Plateaux-Quénu, 1992;Wcislo, 1997;Hogendoorn and Velthuis, 1999;Smith et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

Task allocation and interactions among females in Euglossa carolina nests (Hymenoptera, Apidae, Euglossini)

Augusto

Garófalo²

2011

Apidologie

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-Multifemale nests of Euglossa carolina were studied to investigate task allocation during nest reactivations according to both the females' size and order of emergence. The study was carried out at the campus of the University of São Paulo, Ribeirão Preto, Brazil, from January, 1990 to March, 1992. The activities of the females were recorded during the reactivation processes in eight nests maintained in observation boxes. The size of each female was determined by measuring the forewing length and the maximum width of the head. Nest reactivations were performed by one or more females in the presence or absence of a female that had participated in a previous reactivation process. Usually, the first emerging females remained in the nests and established associations in which the oldest became dominant. All nestmates had mated, and developed ovaries and did not differ in size. Task allocation was recognized by behavioral characteristics, namely, agonism and oophagy in cells oviposited by other females.Euglossa / reproductive skew / oophagy / social structure / task allocation

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“…The majority of both re-used and newly established nests are occupied by relatives, indicating effective kin recognition during foundress dispersal (Schwarz 1986(Schwarz , 1987. Blows (1988) has shown that when females are removed from their natal nests, scrambled, and then forced to construct new nests in a novel environment, cofounded nests show significant within-colony relatedness.…”

Section: Exoneura Bicolormentioning

confidence: 99%

COOPERATIVE NESTING AND OVARIAN DEVELOPMENT IN FEMALES OF THE PREDOMINANTLY SOCIAL BEE EXONEURA BICOLOR SMITH (HYMENOPTERA: ANTHOPHORIDAE) AFTER FORCED SOLITARY ECLOSION

Schwarz

O’Keefe

1991

Australian Journal of Entomology

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Cooperative nesting is frequent in montane populations of the Australian allodapine bee Exoneura bicolor. In natural populations, multifemale colonies primarily arise from cooperative re-use of natal nests or by the cofounding of new nests by groups of female relatives. In this study we examine ovarian enlargement of females that are artificially placed in solitary nests prior to adult eclosion. After eclosion, females were allowed to move around freely prior to overwintering. Of the females recovered at the end of our experiment, 74% had joined to form either 2 or 3-female colonies. We found no evidence of ovarian inhibition between colony members. However, inseminated females showed significantly greater ovarian development than their uninseminated nestmates. These results indicate that the benefits of cooperative nesting arc great, even when nestmates are unrelated. This may have consequences for kin selection models of altruism in Australian allodapine bees.

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Order of eclosion and reproductive differentiation in a social allodapine bee

Cited by 18 publications

References 13 publications

Multifemale nests and social behavior in Euglossa melanotricha (Hymenoptera, Apidae, Euglossini)

Multifemale nests and social behavior in Euglossa melanotricha (Hymenoptera, Apidae, Euglossini)

Task allocation and interactions among females in Euglossa carolina nests (Hymenoptera, Apidae, Euglossini)

COOPERATIVE NESTING AND OVARIAN DEVELOPMENT IN FEMALES OF THE PREDOMINANTLY SOCIAL BEE EXONEURA BICOLOR SMITH (HYMENOPTERA: ANTHOPHORIDAE) AFTER FORCED SOLITARY ECLOSION

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