Phenotypic variability in nesting success among <i>Osmia lignaria propinqua</i> females in a glasshouse environment: (Hymenoptera: Megachilidae)

Tepedino, Vincent J.; Torchio, Phillip F.

doi:10.1111/j.1365-2311.1982.tb00688.x

Cited by 92 publications

(50 citation statements)

References 19 publications

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“…The observed female biased progeny sex ratio and deviations from typical mean body size in our study result from the restricted number of nest tubes leading to an overrepresentation of nests constructed early in the nesting season. Young bees construct more daughter cells and progeny of larger body size (Torchio and Tepedino 1980;Tepedino and Torchio 1982;Tomkins et al 2001;Seidelmann 2006; this study- Table S2).…”

Section: Discussionmentioning

confidence: 99%

“…For pollination purposes, it is advisable to maximize the number of females in the progeny and to produce large individuals that have a higher fecundity (e.g., Tepedino and Torchio 1989;Kim 1997;Tomkins et al 2001;Bosch and Vicens 2006), lower winter mortalities (Tepedino and Torchio 1982;Bosch and Kemp 2004), and can be expected to work at cooler temperatures (Stone and Willmer 1989;Stone 1994). On the other hand, building costs of nest structures such as brood cell lining and partitions have to be minimized.…”

Section: Introductionmentioning

confidence: 99%

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The impact of nest tube dimensions on reproduction parameters in a cavity nesting solitary bee, Osmia bicornis (Hymenoptera: Megachilidae)

2015

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-Recent declines of bee populations have led to great interest in preserving bee species and fuel efforts to develop solitary species for pollination purposes. Xylophilous solitary bees can be easily reared in artificial nests tubes for commercial agricultural as well as wild plant pollination. The impact of the dimensions of these artificial nest tubes on reproduction parameters was studied in the red mason bee, Osmia bicornis (L.), in a long-term study. Increasing tube diameter positively affected both progeny sex ratio and body size. Sex ratio, but not progeny body mass, was negatively affected by short tube length. Building costs rose with increasing diameter accompanied by deteriorated efficiency of tube space utilization. Although female bees used a wide spectrum of nest dimensions, artificial nest tubes of 8-10 mm internal diameter and a length of at least 150 mm were optimal.sex ratio / body size / nest cavity dimensions / diameter / length / Osmia

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The impact of nest tube dimensions on reproduction parameters in a cavity nesting solitary bee, Osmia bicornis (Hymenoptera: Megachilidae)

2015

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“…There are positive correlations of mother size and brood cell size (Tepedino and Torchio 1989), mother size and amount of food supplied (Boomsma and Eickwort 1993), brood cell size and amount of food supplied (Krombein 1967, Johnson 1990), amount of food supplied and size of emergent bees (Klostermeyer et al 1973, Danforth 1990, Johnson 1990, and brood cell size and size of emergent bees (Klostermeyer et al 1973, Kamm 1974, Alcock 1979, Tepedino and Torchio 1982. In Lasioglossum zephyrum bee size is correlated with brood cell size: the larger bees construct larger cells and larger bees emerge from larger cells (Kamm 1974).…”

Section: Discussionmentioning

confidence: 99%

“…Larger individuals can produce more eggs (Tengo and Baur 1993) and survive diapause better (Tepedino and Torchio 1982); larger males can defend more effectively their territories and have more mating opportunities (Alcock 1995); in social species larger females can become dominant (Buckle 1982). However, the size of bees is a balance between advantages and disadvantages that determine the range of optimal body size (Blanckenhorn 2000, Seidelmann 2014).…”

Section: Introductionmentioning

confidence: 99%

The body size of the oil-collecting bee Tetrapedia diversipes (Apidae)

Pinto¹,

Silva²,

Cordeiro³

et al. 2015

JHR

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The body size of bees can affect their fitness in many ways. There is an indirect relationship between the size of the mother and the size of her progeny. This is so because large mothers use larger nests and brood cells and have higher foraging capacity than small mothers, and consequently large mothers supply a larger amount of food to their larvae, which grow larger. We analyzed the relationship between body size of individual oil-collecting bees of the species Tetrapedia diversipes and the size of their brood cells from Boracéia and Ilhabela, southeastern Brazil. In addition, we manipulated 26 brood cells of a population at the campus of Universidade de São Paulo by removing food from 13 brood cells. In this case, we checked the relationship between the body size of these bees and the amount of food consumed. We measured 241 individuals: 135 males and 106 females. No significant size difference was found between males and females. Only a weak relationship between body size and brood cell volume was detected, possibly due to the low variation in both female size and brood cell size. In the food manipulation experiment, the unmanipulated individuals were larger than individuals for whom part of the provisions were removed but no correlation was found between amount of food removed and offspring size.

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“…(59), which suggest that body size is constrained by ecological and behavioral factors over relatively short time frames, i.e., within a single generation. Tradeoffs inherent to parent-offspring provisioning (60)(61)(62)(63)(64) and different ecological conditions (65,66) are likely to play a predominant role in natural populations. This high degree of plasticity ensures that females can produce viable offspring in a wide variety of contexts.…”

Section: Consequences and Developmental Implications Of Size Variatiomentioning

confidence: 99%

Metamorphosis is induced by food absence rather than a critical weight in the solitary bee,Osmia lignaria

Helm

Rinehart

Yocum

et al. 2017

Proc. Natl. Acad. Sci. U.S.A.

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Body size is an important phenotypic trait that correlates with performance and fitness. For determinate growing insects, body size variation is determined by growth rate and the mechanisms that stop growth at the end of juvenile growth. Endocrine mechanisms regulate growth cessation, and their relative timing along development shapes phenotypic variation in body size and development time. Larval insects are generally hypothesized to initiate metamorphosis once they attain a critical weight. However, the mechanisms underlying the critical weight have not been resolved even for well-studied insect species. More importantly, critical weights may or may not be generalizable across species. In this study, we characterized the developmental aspects of size regulation in the solitary bee, Osmia lignaria. We demonstrate that starvation cues metamorphosis in O. lignaria and that a critical weight does not exist in this species. Larvae initiated pupation <24 h after food was absent. However, even larvae fed ad libitum eventually underwent metamorphosis, suggesting that some secondary mechanism regulates metamorphosis when provisions are not completely consumed. We show that metamorphosis could be induced by precocene treatment in the presence of food, which suggests that this decision is regulated through juvenile hormone signaling. Removing food at different larval masses produced a 10-fold difference in mass between smallest and largest adults. We discuss the implications of body size variation for insect species that are provided with a fixed quantity of provisions, including many bees which have economic value as pollinators. insect body size model | critical weight | solitary bees | body size | pollinator B ody size is one of the most striking aspects of variation that occurs both within and among different species. Size correlates with performance and fitness, and their relationships are of central importance in life history theory (1), metabolic theory (2, 3), bioenergetics (4, 5), and ecological and evolutionary physiology (6, 7). For this reason, the developmental basis of size variation is of growing interest, especially common elements that cut across taxa (8). Theoretical and conceptual life history models have hypothesized that developmental thresholds shape patterns of adult size variation (9, 10), and the idea of a sizedependent basis of maturation is pervasive (9, 11).The insect body size model integrates genetic, tissue signaling, and hormonal elements that regulate the developmental basis of adult size variation (12). In tandem with increasingly detailed identification and characterization of mechanisms shaping body size (12-15), there has been an effort to simplify this complexity for the purposes of generalization and predictability (8,16). Three factors contribute to adult body size and serve as proxies for the endocrine regulation of metamorphosis: larval growth rate, the critical weight that induces metamorphosis, and the interval between the critical weight and cessation of growth (8,(16)(17)(18)(...

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Phenotypic variability in nesting success among Osmia lignaria propinqua females in a glasshouse environment: (Hymenoptera: Megachilidae)

Cited by 92 publications

References 19 publications

The impact of nest tube dimensions on reproduction parameters in a cavity nesting solitary bee, Osmia bicornis (Hymenoptera: Megachilidae)

The impact of nest tube dimensions on reproduction parameters in a cavity nesting solitary bee, Osmia bicornis (Hymenoptera: Megachilidae)

The body size of the oil-collecting bee Tetrapedia diversipes (Apidae)

Metamorphosis is induced by food absence rather than a critical weight in the solitary bee,Osmia lignaria

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