Capture of Bumble Bees and Honey Bees in Traps Baited with Lures to Attract Japanese Beetles124

Wild bees are important contributors to the pollination ecosystem service, but they are especially vulnerable to agricultural intensification which causes the loss and fragmentation of natural habitats. We monitored bumblebee populations (Bombus spp.) in 14 grassland patches incorporated into the agricultural habitat mosaic in the Mezőföld region, Hungary. We asked how bumblebee populations were affected by local vegetation quality and the presence of various landscape elements, including fields in agri-environmental schemes, at various spatial scales. A stratified analysis revealed that vegetation quality, especially the lack of weeds, was the most important local factor that positively affected both bumblebee abundance and species number. We found no significant landscape scale effects between 50-250 m. Between 500-1000 m grassland area in the landscape had consistently significant positive effect on species richness. At the 2 km scale the extent of arable fields had a negative impact on both abundance and richness. A higher percentage area of arable fields in the landscape participating in agri-environmental schemes had no positive effect on bumblebee abundance or species richness. Considering all local and landscape effects and their possible interactions, model selection and variance partitioning revealed that local factors were the most important determinants of bumblebee richness and abundance. Local and landscape factors had high shared variance but did not interact with each other. The present study indicated that small scale landscape composition had the lowest importance, but larger scale landscape composition was significant, most likely because bumblebees can forage far from their nests. If we are able to provide good quality grassland patches incorporated into the agricultural habitat mosaic, then we can build on the strong spill over propensity of bumblebees and can expect their contribution to the pollination of various crops.Key words: Bombus, pollination, landscape complexity, grassland, agri-environmental scheme INTRODUCTIONFrom the second part of the 20th century, the intensification of agricultural production became higher than ever before. The intensive agricultural * This paper is dedicated to Prof. László Papp, in honor of his 70th birthday and his outstanding contribution to the fields of dipteran taxonomy and ecology.Acta Zool. Acad. Sci. Hung. 62, 2016 388 SÁROSPATAKI, M., BAKOS, R., HORVÁTH, A., NEIDERT, D., HORVÁTH, V. et al. management resulted in general biodiversity decline in Europe (de Heer et al. 2005), leading to a decrease in the level of ecosystem services including pollination (Murray et al. 2009). The landscape change and fragmentation of habitats through agricultural intensification created structurally poor landscapes (Tilman et al. 2001), and these affected the diversity and abundance of pollinators, especially wild bees (Biesmeijer et al. 2006, Goulson et al. 2010, Kremen et al. 2002, Potts et al. 2010.Pollination is an important ecosystem service, provided prima...

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“…Traps were baited by anethol-eugenol 9:1 lure to attract bumblebees (Hamilton et al 1970). Killing material in the traps was 70% ethylene-glycol.…”

Section: Sampling Methods and Description Of The Environmentmentioning

confidence: 99%

The role of local and landscape level factors in determining bumblebee abundance and richness

Sárospataki¹,

Bakos²,

Horváth³

et al. 2016

Acta Zool Acad Sci H

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“…trapping experiments, honey bees and (or) bumble bees were also attracted by a mixture of 2-phenylethyl proprionate, eugenol, and geraniol (Allsopp and Cherry 1991), as well as by eugenol and geraniol when offered as single compounds or as a mixture (Hamilton et al 1970;Ladd et al 1974). However, unlike anethole, eugenol and geraniol are widespread floral scent compounds in bee-pollinated plants (Dobson 2006;Knudsen et al 2006) and are therefore potential candidates for mediating interactions between honey bees or bumble bees and plants.…”

Section: (Ee)-a-farnesenementioning

confidence: 98%

“…However, these bees were freeflying before the experiment, or were at least fed with pollen, so it is unclear whether bees were exposed to the compounds of interest before they were tested. Anethole (1-methoxy-4-(1-propenyl) benzene) is an important beetle sex pheromone, and baited beetle traps attracted several honey bees and (or) bumble bees (Hamilton et al 1970;Ladd et al 1974;Ladd and Tew 1983;Allsopp and Cherry 1991) even though it is not a common floral scent component (Knudsen et al 2006). Thus, it is unclear whether anethole plays an important role in bee-plant interactions.…”

Section: Visual Vs Olfactory Stimuli In Reward-based Pollination Sysmentioning

confidence: 99%

“…Apis mellifera, Andrena vaga Blight et al 1997;Laloi et al 2001; present study (E,E)-Farnesol Apis mellifera Williams et al 1981b Geranial Apis mellifera Williams et al 1981b Geraniol Apis mellifera, Bombus spp. Hamilton et al 1970;Ladd et al 1974;Williams et al 1981b;Wells et al 1993;Laloi et al 2001Ipsdienol Euglossini Whitten et al 1988 Apis mellifera, Andrena spp. *, Colletes cunicularius Wadhams et al 1994;Borg-Karlson et al 1996;Blight et al 1997;Laloi et al 2001;Meagher 2002;Borg-Karlson et al 2003;Chaffiol et al 2005 Note: Bee species responding without prior experience to floral volatiles are in boldface type.…”

Section: (Ee)-a-farnesenementioning

confidence: 99%

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The chemical ecology and evolution of bee–flower interactions: a review and perspectivesThe present review is one in the special series of reviews on animal–plant interactions.

2010

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Bees and angiosperms have shared a long and intertwined evolutionary history and their interactions have resulted in remarkable adaptations. Yet, at a time when the “pollination crisis” is of major concern as natural populations of both wild and honey bees ( Apis mellifera L., 1758) face alarming decline rates at a worldwide scale, there are important gaps in our understanding of the ecology and evolution of bee–flower interactions. In this review, we summarize and discuss the current knowledge about the role of floral chemistry versus other communication channels in bee-pollinated flowering plants, both at the macro- and micro-evolutionary levels, and across the specialization–generalization gradient. The available data illustrate that floral scents and floral chemistry have been largely overlooked in bee–flower interactions, and that pollination studies integrating these components along with pollinator behaviour in a phylogenetic context will help gain considerable insights into the sensory ecology and the evolution of bees and their associated flowering plants.

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Minimizing Bee (Hymenoptera: Apoidea) Bycatch in Japanese Beetle Traps

Sipolski

Datson

Reding³

et al. 2019

Environmental Entomology

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Native and introduced bees were attracted to and captured in commercially available Japanese beetle, Popillia japonica Newman (Coleoptera: Scarabaeidae), traps baited with floral lure components: geraniol, eugenol, and phenethyl propionate [PEP] in Rhode Island, Ohio, and Tennessee. Studies in Rhode Island showed that Bombus impatiens Cresson (Hymenoptera: Apidae) was significantly more attracted to geraniol alone and as a component in floral lure blends than to either eugenol or PEP alone. Xylocopa virginica (L.) (Hymenoptera: Apidae) was more selective in being primarily attracted to traps baited with higher amounts of geraniol in 2016. Removing geraniol from the floral lure blend did not significantly reduce Japanese beetle captures in 2017 and 2018 in Rhode Island and Ohio but did significantly reduce bee captures in Rhode Island in 2017 and 2018. Green, black, brown, and red traps captured significantly fewer bees than clear or standard yellow vane and green cage traps in 2018 in Rhode Island and Tennessee; however, there were no significant differences between Japanese beetle captures in any of the colored or clear traps. Our results show that using all green traps with a lure composed of eugenol and PEP and the Japanese beetle female produced sex pheromone can effectively capture Japanese beetles while minimizing bycatch of bees.

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Capture of Bumble Bees and Honey Bees in Traps Baited with Lures to Attract Japanese Beetles124

Cited by 6 publications

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The role of local and landscape level factors in determining bumblebee abundance and richness

The role of local and landscape level factors in determining bumblebee abundance and richness

The chemical ecology and evolution of bee–flower interactions: a review and perspectivesThe present review is one in the special series of reviews on animal–plant interactions.

Minimizing Bee (Hymenoptera: Apoidea) Bycatch in Japanese Beetle Traps

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