The carry‐over effects of pollen shortage decrease the survival of honeybee colonies in farmlands

Réquier, Fabrice; Odoux, Jean François; Henry, Mickaël; Bretagnolle, Vincent

doi:10.1111/1365-2664.12836

Cited by 112 publications

(91 citation statements)

References 28 publications

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“…Arca et al, 2014; Requier et al, 2019) and scarcity of floral resources (e.g. Requier, Odoux, Henry & Bretagnolle, 2017). Other studies further proposed that anthropogenic disturbances and their impacts on life-history traits could directly affect the survival probability of honey bee colonies (Henry et al, 2012; Becher et al, 2014; Perry et al, 2015; Requier et al, 2017).…”

Section: Discussionmentioning

confidence: 99%

“…Requier, Odoux, Henry & Bretagnolle, 2017). Other studies further proposed that anthropogenic disturbances and their impacts on life-history traits could directly affect the survival probability of honey bee colonies (Henry et al, 2012; Becher et al, 2014; Perry et al, 2015; Requier et al, 2017). We believe that the recording of the AOF ontogenetic shift could represent an early-warning indicator of the risk of colony collapse, as previously suggested by Perry et al (2015) for which similar effects of AOF on foraging performance have been shown.…”

Section: Discussionmentioning

confidence: 99%

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Measuring ontogenetic shifts in central-place foraging insects: a case study with honey bees

Réquier

Henry

Decourtye³

et al. 2020

Preprint

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13 7 INRAE, UE 1255 APIS "Abeilles paysages interactions et systèmes de culture", Abstract 27 1. Measuring time-activity budgets over the complete individual lifespan is now 28 possible for many animals with the recent advances of life-long individual 29 monitoring devices. Although analyses of changes in the patterns of time-activity 30 budgets have revealed ontogenetic shifts in birds or mammals, no such technique 31has been applied to date on insects. 32 2. We tested an automated breakpoint-based procedure to detect, assess and 33 quantify shifts in the temporal pattern of the flight activities in honey bees. We 34 assumed that the learning and foraging stages of honey bees will differ in several 35 respects, to detect the age at onset of foraging (AOF). 36 3. Using an extensive dataset covering the life-long monitoring of 2,100 individuals, 37 we compared the AOF outputs with the more conventional approaches based on 38 arbitrary thresholds. We further evaluated the robustness of the different methods 39 comparing the foraging time-activity budget allocations between the presumed 40 foragers and confirmed foragers.41 4. We revealed a clear-cut learning-foraging ontogenetic shift that differs in duration, 42 frequency, and time of occurrence of flights. Although AOF appeared to be highly 43 plastic among bees, the breakpoint-based procedure seems better able to detect it 44 than arbitrary threshold-based methods that are unable to deal with inter-individual 45 variation. 46 5. We developed the aof R-package including a broad range of examples with both 47 simulated and empirical dataset to illustrate the simplicity of use of the procedure.48 This simple procedure is generic enough to be derived from any individual life-long 49 monitoring devices recording the time-activity budgets of honey bees, and could 50 3 propose new ecological applications of bio-logging to detect ontogenetic shifts in 51 the behaviour of central-place foraging insects. 52 53

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Measuring ontogenetic shifts in central-place foraging insects: a case study with honey bees

Réquier

Henry

Decourtye³

et al. 2020

Preprint

Self Cite

View full text Add to dashboard Cite

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“…Key foraging resources for pollinators are provided by different habitats to various degrees (Cole et al, 2017), and resource shortages may occur in agricultural landscapes (Jachula, Denisow, & Wrzesien, 2018), resulting in a decrease in bee survival (Requier, Odoux, Henry, & Bretagnolle, 2017). To properly manage such habitats for bees, the specific nutritional needs of the bee species of interest should be understood.…”

Section: Demandmentioning

confidence: 99%

Key pollen host plants provide balanced diets for wild bee larvae: A lesson for planting flower strips and hedgerows

Filipiak

2019

Journal of Applied Ecology

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1. Bee-friendly plants are defined by the quantity of food they produce and the visitation rates of adult insects foraging for nectar. However, it is pollen nutritional quality that enables proper larval development of bees, affecting their populations. Not all plants produce pollen that satisfies the nutritional requirements of bee larvae, and we lack an understanding of how different plant pollens impact bee nutritional demands. This study examined whether nutritionally desirable key plant species may promote wild bee larval development, which is essential if the population is to thrive.2. The generalist solitary mason bee Osmia bicornis L. was used as a model species to examine differences between bee larva nutritional demand and host plant nutrient supply; an ecological stoichiometry framework was applied. The stoichiometric ratios of 12 elements were investigated in bee bodies and cocoons (reflecting nutritional demand) and in the pollen supplied by the mother (nutritional supply; N = 15 × 2 sexes). Similarly, the stoichiometry of 62 pollen taxa, including native, alien, and garden plants and crops, was compared with the bee demand based on the literature.3. Compared to males, females had higher demands for P, Cu and Zn and were supplied with pollen richer in these elements. Therefore, when collecting pollen for their progeny, Osmia provides daughters and sons with different pollen mixtures, reflecting sex-specific nutritional demand. 4. Bees may be limited by the availability of P, Na, Mn, Mg, K, Fe, Ca, Zn and Cu, with high taxonomic variability in their concentrations in pollen. Female fitness may be particularly related to a high proportion of P in the diet. Synthesis and applications.Access to key plant species that allow nutritionally balanced larval diets may be essential for bee development, whether food is gathered intentionally or randomly. Such plant species-and not only those rich in nectar and pollen-should be promoted in wild bee conservation efforts, including planting flower strips and hedgerows. Bee-friendly plants should not be defined and planted solely based on the quantities of food they produce and on the visitation rates of adult insects foraging for energy.

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“…Grassland habitat in the NGP supports the growth of herbaceous forbs, woody shrubs, and flowering trees honey bees rely on for nectar and pollen throughout the growing season [37,38]. A steady, abundant supply of nutritional resources are required for honey bee colonies to grow, produce a honey crop, and overwinter successfully [39][40][41]. Landscape and forage quality influence the physiological health of honey bee colonies [17,42] which modulates the effects of interactions with parasites and pathogens of honey bees [43,44] resulting in differential health and survival outcomes [45,46].…”

Section: Introductionmentioning

confidence: 99%

The influence of spatiotemporally decoupled land use on honey bee colony health and pollination service delivery

Smart

Otto

Carlson

et al. 2018

Environ. Res. Lett.

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Societal dependence on insects for pollination of agricultural crops has risen amidst concerns over pollinator declines. Habitat loss and lack of forage have been implicated in the decline of both managed and native pollinators. Land use changes in the Northern Great Plains of the US, a region supporting over 1 million honey bee colonies annually, have shifted away from historical grassland ecosystems bees rely on for forage toward landscapes dominated by corn, soybeans, and other row crops. We investigated how land use impacts honey bee colony population size during the growing season and subsequent colony population size for almond pollination in central California the following February. We provide estimates of how land use affects beekeeper economics by linking summer habitat with pollination service payments and later production of new colonies. Our results demonstrate that a greater presence of non-bee foraged agricultural crops surrounding apiaries in the summer results in smaller colonies by the end of the growing season. Apiaries with colonies exhibiting smaller population size in the autumn were also smaller during almond pollination the following spring; impacting the beekeeper with a reduced per-colony rental fee for pollination services and reduced potential for creating new spring colonies, based on prior growing season land use. This study highlights the downstream effects of factors driving land use decisions on the ability of beekeepers to provide robust honey bee colonies to support the pollination industry on a national scale. It also demonstrates the direct linkages between habitat in the Northern Great Plains, bee health, and pollination services rendered elsewhere in the US.

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The carry‐over effects of pollen shortage decrease the survival of honeybee colonies in farmlands

Cited by 112 publications

References 28 publications

Measuring ontogenetic shifts in central-place foraging insects: a case study with honey bees

Measuring ontogenetic shifts in central-place foraging insects: a case study with honey bees

Key pollen host plants provide balanced diets for wild bee larvae: A lesson for planting flower strips and hedgerows

The influence of spatiotemporally decoupled land use on honey bee colony health and pollination service delivery

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