Abdominal Temperature Regulation by Arctic Bumblebees

Heinrich, Bernd; Vogt, F. Daniel

doi:10.1086/physzool.66.2.30163689

Cited by 27 publications

(30 citation statements)

References 12 publications

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“…Bumblebees (Hymenoptera; Bombus and closely related genera) are generally good thermoregulators. Given their wide geographical distribution it is not surprising, however, to note varying thermoregulatory abilities in this group (Bishop and Armbruster, 1999;Heinrich and Vogt, 1993). During bumblebee flight, most heat is generated as a by-product of flight muscle metabolism, specifically actinomyosin ATPase and oxidative phosphorylation.…”

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confidence: 99%

“…During bumblebee flight, most heat is generated as a by-product of flight muscle metabolism, specifically actinomyosin ATPase and oxidative phosphorylation. Considerable thermogenesis is also seen at rest, and this heat may be used to incubate broods (Heinrich and Vogt, 1993), to raise thoracic temperature (Tth), allowing for flight at Tas as low as 2.5°C (Heinrich, 1975;Stone and Willmer, 1989), or to maintain elevated Tth in nonflying bees, for example when foraging by walking on mass flowers (Prys-Jones, 1985). Within a matter of minutes, resting bumblebees can raise their Tth from ~7°C to the 35-40°C necessary for flight muscles to produce sufficient power for flight (Goller and Esch, 1990;Stone and Willmer, 1989).…”

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`Futile cycle' enzymes in the flight muscles of North American bumblebees

Staples

Koen

Laverty

2004

Journal of Experimental Biology

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In the flight muscles of European bumblebees, high activities of fructose-1,6-bisphosphatase (FbPase) relative to phosphofructokinase (PFK) have suggested a thermogenic 'futile cycle' important for regional endothermy. We find generally low activities of FbPase (0.7-19.7·units·g -1 ·thorax) in North American Bombus species, with the exception of Bombus rufocinctus, where activity (43.1·units·g -1 ·thorax) is comparable with that of European congeners. These data, taken with estimates of maximal rates of heat production by cycling, do not support a significant thermogenic role for the PFK/FbPase cycle. In agreement with earlier studies, both PFK and FbPase activities were found to scale allometrically with body size (allometric exponents -0.18 and -1.33, respectively). The cycle may serve to supplement thermogenesis or amplify glycolytic flux in rest-to-flight transitions, especially in smaller bees.

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confidence: 99%

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`Futile cycle' enzymes in the flight muscles of North American bumblebees

Staples

Koen

Laverty

2004

Journal of Experimental Biology

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“…Eight species previously reported in Alaska, but not collected during our study are: B. appositus Cresson 1878, (possible misidentification of B. borealis Kirby 1837 or B. distinguendus ), B. fervidus (Fabricius 1798), B. hyperboreus Schönherr 1809, B. lucorum Linnaeus 1761 (likely misidentification of B. cryptarum ), B. nevadensis Cresson 1874, B. sandersoni Franklin 1913 (likely misidentification of B. jonellus (Kirby)), B. sitkensis Nylander 1848, and B. vagans Smith 1854 (Ashmead 1902, Bequaert 1920, Washburn 1963, Milliron 1973, Williams and Batzli 1982, Thorp et al 1983, Henrich and Vogt 1993, Williams and Thomas 2005, Ascher and Pickering 2012, CNC (Canadian National Collection) 2010, UAM 2013a,Williams et al 2014). These eight species represent possible misidentifications (e.g.…”

Section: Discussionmentioning

confidence: 99%

Bumble Bees (Hymenoptera: Apidae: Bombus spp.) of Interior Alaska: Species Composition, Distribution, Seasonal Biology, and Parasites

Pampell¹,

Sikes²,

Pantoja³

et al. 2015

BDJ

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BackgroundDespite the ecological and agricultural significance of bumble bees in Alaska, very little is known and published about this important group at the regional level. The objectives of this study were to provide baseline data on species composition, distribution, seasonal biology, and parasites of the genus Bombus at three major agricultural locations within Alaska: Fairbanks, Delta Junction, and Palmer, to lay the groundwork for future research on bumble bee pollination in Alaska.New informationA total of 8,250 bumble bees representing 18 species was collected from agricultural settings near Delta Junction, Fairbanks, and Palmer, Alaska in 2009 and 2010. Of the 8,250 specimens, 51% were queens, 32.7% were workers, and 16.2% were males. The species composition and relative abundances varied among sites and years. Delta Junction had the highest relative abundance of bumble bees, representing 51.6% of the specimens collected; the other two locations, Fairbanks and Palmer represented 26.5% and 21.8% of the overall catch respectively. The species collected were: Bombus bohemicus Seidl 1837 (= B. ashtoni (Cresson 1864)), B. balteatus Dahlbom 1832, B. bifarius Cresson 1878, B. centralis Cresson 1864, B. cryptarum (Fabricius 1775) (=B. moderatus Cresson 1863), B. distinguendus Morawitz 1869, B. flavidus Eversmann 1852 (=B. fernaldae Franklin 1911), B. flavifrons Cresson 1863, B. frigidus Smith 1854, B. insularis (Smith 1861), B. jonellus (Kirby 1802), B. melanopygus Nylander 1848, B. mixtus Cresson 1878, B. neoboreus Sladen 1919, B. occidentalis Greene 1858, B. perplexus Cresson 1863, B. rufocinctus Cresson 1863, and B. sylvicola Kirby 1837. Overall, the most common bumble bees near agricultural lands were B. centralis, B. frigidus, B. jonellus, B. melanopygus, B. mixtus, and B. occidentalis. Species' relative population densities and local diversity were highly variable from year to year. Bombus occidentalis, believed to be in decline in the Pacific Northwest states, represented 10.4% of the overall specimens collected from the three sites studied. Bumble bees were found to be infected by Nosema and nematodes with infection rates up to 2.1% and 16.7% respectively. Of the eight species infected by parasites, B. occidentalis displayed the highest Nosema infection, while B. centralis was the species with the highest infection of nematodes. To our knowledge this represents the first multi-year study on bumble bees from the main agricultural areas of Alaska to provide baseline data on species composition, distribution, seasonal biology, and parasites of the genus Bombus.

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“…Metabolic rate increase has been associated with a higher mutation rate in mammals and birds than in other vertebrates (Stanley and Harrison 1999) and, on a smaller scale, in insects such as Bombus and Apis (Heinrich and Vogt 1993).…”

Section: Usefulness Of Cyt-b Variationmentioning

confidence: 99%

Cytochrome-b variation in Apis mellifera samples and its association with COI–COII patterns

et al. 2008

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Five Mbo I (Mbo-A, Mbo-M, Mbo-C(1), Mbo-C(2) and Mbo-C(3)) and Hinf I (Hinf-1 to Hinf-5) patterns were observed in Apis mellifera samples after restriction of a 485 bp fragment of the mitochondrial cytochrome-b (cyt-b) gene. Associating the cyt-b Restriction fragment length polymorphism (RFLP) pattern of each sample to its respective previously established COI-COII (Dra I sites) pattern, five restriction patterns (Mbo-C(1), Mbo-C(2), Mbo-C(3), Hinf-1 and Hinf-4) were observed in samples of maternal origin associated to the evolutionary branch C. No deletions or insertions were observed and the nucleotide substitution rate was estimated at 5.4%. Higher nucleotide diversity was observed among the branch C-haplotypes when compared with A and M lineages. Further studies are needed to confirm if the cyt-b + COI-COII haplotypes help to assign certain phylogeographic patterns to the branch C and to clarify phylogenetic relationships among A. mellifera subspecies.

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Abdominal Temperature Regulation by Arctic Bumblebees

Cited by 27 publications

References 12 publications

`Futile cycle' enzymes in the flight muscles of North American bumblebees

`Futile cycle' enzymes in the flight muscles of North American bumblebees

Bumble Bees (Hymenoptera: Apidae: Bombus spp.) of Interior Alaska: Species Composition, Distribution, Seasonal Biology, and Parasites

Cytochrome-b variation in Apis mellifera samples and its association with COI–COII patterns

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