Open-cell parasitism shapes maternal investment patterns in the Red Mason bee Osmia rufa

Seidelmann, Karsten

doi:10.1093/beheco/arl017

Cited by 73 publications

(75 citation statements)

References 39 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: 78%

“…Overwintered cocoons free of parasites were Optimal nest tube size for O. bicornis exposed in the first days of April in the shelter to allow natural emergence. Each year, a total of 800 nest tubes were offered to about 1000 emerging females to correct for a dispersal rate of about 40 % (Seidelmann 2006). After the start of the nesting season, the test box was photographed every 2-3 days to monitor the sealing of the nest tubes.…”

Section: Methodsmentioning

confidence: 99%

“…Bees were sexed according to the hair color of the clypeus (males: white; females: black). The sex of bee larvae that were killed by a parasite or perished by unknown reasons was inferred from the cell length and the sex of the bees in the neighboring cells (Raw 1972;Holm 1973;Longair 1981;Maddocks and Paulus 1987;Seidelmann 2006). As not all stalks were used for nest construction by O. bicornis , a total of 702 nests containing 5404 cells were analyzed from three nesting periods (2010)(2011)(2012).…”

Section: Methodsmentioning

confidence: 99%

“…Statistical analysisNesting females adapt the progeny sex ratio and progeny body size to their age-specific provisioning capability (Torchio and Tepedino 1980;Ivanov 2006;Seidelmann 2006). To take these shifts into statistical account, the relative season date for each nest was determined as mean of start and closure dates (see electronic supplementary material for details) and normalized to a total nesting period of 50 days.…”

Section: Methodsmentioning

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: 78%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

See 2 more Smart Citations

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

2015

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“…Following the argument of Seidelmann (Seidelmann 2006;Seidelmann et al 2010), this can be explained by shifts of maternal investments toward males due to a higher risk of parasitism caused by reduced tube length. His argument follows the idea that it is less costly to produce males, which are smaller than females, closer to the opening of a tube.…”

Section: Length Of Nesting Tubesmentioning

confidence: 97%

On managing the red mason bee (Osmia bicornis) in apple orchards

Gruber¹,

Eckel²,

Everaars³

et al. 2011

Apidologie

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-A worldwide decline of pollinator abundance is recorded and the worldwide pollination of insectpollinated crops has traditionally depended on a single species, the honeybee. The risks of relying on a single species are obvious. Other species have been developed for particular crops. Here we present an extension of the framework of Bosch and Kemp (2002) that deals on how to develop a bee species into a crop pollinator. We used nesting aids in different settings to address five important issues that are necessary for an effective management of a bee species in a commercial setting. Our study system was the red mason bee (Osmia bicornis) in apple orchards in eastern Germany, but our approach should be transferable to other settings. The first issue was to demonstrate that it is possible to increase population size of O. bicornis by providing nesting aids. Second, we present how someone can study landscape features that promote the occurrence and abundance of O. bicornis. Further, we studied the dispersal of the species inside the orchard, and could demonstrate that bees prefer to disperse along lines of trees. Finally, we studied the effect of nesting substrate and type of farming on the recruitment of bees. We found a close relationship between the length of nesting tubes and achieved sex ratio and a negative effect of conventional farming on the number of nests built. We conclude with recommendations on how our findings can be used to optimize the management of O. bicornis in apple orchards.solitary bees / pollination / yield increase / management / Apoidea

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Effects of exposure to winter oilseed rape grown from thiamethoxam‐treated seed on the red mason bee Osmia bicornis

Ruddle

Elston

Klein

et al. 2018

Enviro Toxic and Chemistry

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There has been increasing interest in the effects of neonicotinoid insecticides on wild bees. In solitary bee species the direct link between each individual female and reproductive success offers the opportunity to evaluate effects on individuals. The present study investigated effects of exposure to winter oilseed rape grown from thiamethoxam-treated seed on reproductive behavior and output of solitary red mason bees (Osmia bicornis) released in 6 pairs of fields over a 2-yr period and confined to tunnels in a single year. After adjustment to the number of females released, there was significantly lower production of cells and cocoons/female in tunnels than in open field conditions. This difference may be because of the lack of alternative forage within the tunnels. Under open field conditions, palynology of the pollen provisions within the nests demonstrated a maximum average of 31% oilseed rape pollen at any site, with Quercus (oak) contributing up to 86% of the pollen. There were no significant effects from exposure to oilseed rape grown from thiamethoxam-treated seed from nest establishment through cell production to emergence under tunnel or field conditions. Environ Toxicol Chem 2018;37:1071-1083. © 2017 SETAC.

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Open-cell parasitism shapes maternal investment patterns in the Red Mason bee Osmia rufa

Cited by 73 publications

References 39 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)

On managing the red mason bee (Osmia bicornis) in apple orchards

Effects of exposure to winter oilseed rape grown from thiamethoxam‐treated seed on the red mason bee Osmia bicornis

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