Changes in maternal investment with climate moderate social behaviour in a facultatively social bee

Dew, Rebecca M.; Shell, Wyatt A.; Rehan, Sandra M.

doi:10.1007/s00265-018-2488-4

Cited by 17 publications

(13 citation statements)

References 65 publications

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“…We found that the first brood cell position is extremely female‐biased (87.5% of females); however, the first brood cell females were not significantly smaller than other females in the same nest. This is similar to C. australensis , in which the first brood cell is female‐biased, yet the female in this position is comparable in size to other female offspring (Dew et al ., ). Direct observations of nests with mature offspring are necessary for the confirmation of the strategy used by C. chalcites .…”

Section: Discussionmentioning

confidence: 97%

“…In parental care, parents should optimise their investment in offspring (Coleman et al ., ; Fox & Czesak, ; Trumbo, ; Kölliker et al ., ; Seidelmann, ). Investment in current offspring is dependent on the parental quality (Molumby, ; Nager et al ., ; Rehan & Richards, ), environmental variables (Strohm & Linsenmair, ; Kim, ; Peterson & Roitberg, , ; Renauld et al ., ; Dew et al ., ; Seidelmann, ), and future breeding possibilities (Gross, ). Parents may also invest in male and female offspring differently (Trivers & Willard, ) depending on the sexual dimorphism of the species (Helms, ).…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, it is possible to measure the maternal investment by weighing offspring (Tepedino & Torchio, 1982;Bosch & Vicens, 2002) or by using another proxy parameter that is correlated with weight. The most commonly used parameter of size in aculeate Hymenoptera is the head width (Stark, 1992;Strohm & Linsenmair, 1997b;Roulston & Cane, 2000;Bosch & Vicens, 2002;Grüter et al, 2017;Dew et al, 2018). Body mass and head width are also correlated in Ceratina bees (Rehan & Richards, 2010a;.…”

Section: Introductionmentioning

confidence: 99%

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Maternal investment in a bee species with facultative nest guarding and males heavier than females

Mikát

Benda

Straka

2019

Ecological Entomology

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1. Maternal investment can be influenced by several factors, especially maternal quality and possibilities for future reproduction. Mass provisioning Hymenoptera are an excellent group for measuring maternal investment because mothers distribute food sources to each brood cell for each offspring separately. Generally in aculeate Hymenoptera, larger females produce larger offspring and invest more in female offspring than in male offspring. 2. This study investigated patterns of maternal investment in Ceratina chalcites, which has an uncommon type of sexual size dimorphism in Hymenoptera: on average, males are heavier than females. It was found that larger females produce a significantly higher proportion of male offspring, as males are the costlier sex in this species. 3. Facultative nest guarding by females was observed. Females can guard offspring until adulthood, as is typical for bees of genus Ceratina (34.43% of nests); however, in the majority of cases (65.56% of nests), females plug and abandon the nest. Significant differences were found in the amount of investment between guarded and unguarded nests. Guarded nests had a greater number of provisioned brood cells and a higher proportion of male offspring. It is suggested that mothers have two facultative strategies – either she makes a large investment in the offspring of one nest or she abandons the first nest and carries out a second nesting elsewhere.

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Section: Discussionmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Maternal investment in a bee species with facultative nest guarding and males heavier than females

Mikát

Benda

Straka

2019

Ecological Entomology

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“…1). Our Queensland (QLD) population (28.24°S, 152.09°E) was drawn from subtropical temperate forests characterized by warm summers and cold winters; Victoria (VIC; 34.15°S, 142.16°E) from a semi-arid riverine area with hot, dry summers and cold winters; and our South Australia (SA) population (34.94°S, 138.50°E) from coastal dunes with warm summers and cold winters (Dew et al, 2016(Dew et al, , 2018. Victoria is a drier region of Australia than either QLD or SA, but is connected to both regions by a series of waterways which form the Murray-Darling River basin (MDRB; Fig.…”

Section: Field Collections and Demographic Assessmentsmentioning

confidence: 99%

“…Ceratina australensis is largely subsocial; most nests contain a single female, which provides extended maternal care to her brood (Michener, 1974;Rehan, Richards & Schwarz, 2010). However, this species also demonstrates a facultative capacity for social nesting; a low frequency of nests within a given population (3-20%) will contain two females, which operate under a reproductive division of labour Rehan, Schwarz & Richards, 2011;Dew, Shell & Rehan, 2018). Social nesting in this species is thought to be reinforced by the limited dispersal of females from natal nests (Rehan et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Phylogeography and population genetics of the Australian small carpenter bee, Ceratina australensis

Oppenheimer

Shell

Rehan

2018

Biological Journal of the Linnean Society

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The Australian small carpenter bee, Ceratina australensis, is the sole member of the small carpenter bees, genus Ceratina, in Australia. Ceratina australensis is found throughout eastern Australia in dead, broken stems of weedy plant species, where it makes its nests. Here we developed eight microsatellite loci and used these markers to characterize the genetic structure of three populations across three distinct ecoregions that are connected by the Murray-Darling River basin. We genotyped 57 female bees and found significant and geographically consistent variation in allelic diversity and heterozygosity between populations. Through comparisons with the results of mitochondrial DNA screening from a previous study, we infer the possibilities of male-biased dispersal and limited interpopulation migration. Based on available distribution data, the expansion of C. australensis into arid regions appears to follow the Murray-Darling River basin and associated waterways. This basin has undergone severe anthropogenic disturbance since European settlement of Australia, with large-scale changes to native vegetation communities. Although it is unknown how these changes have affected local insect communities, C. australensis does not rely on a single plant species for nesting habitat. We provide evidence for the hypothesis that expansion of C. australensis into Australia might have been aided by the introduction of non-native pithy stemmed plants.

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Sociality in the North African small carpenter bee, Ceratina albosticta

Mikát

Rehan

2022

Insect. Soc.

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Changes in maternal investment with climate moderate social behaviour in a facultatively social bee

Cited by 17 publications

References 65 publications

Maternal investment in a bee species with facultative nest guarding and males heavier than females

Maternal investment in a bee species with facultative nest guarding and males heavier than females

Phylogeography and population genetics of the Australian small carpenter bee, Ceratina australensis

Sociality in the North African small carpenter bee, Ceratina albosticta

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