Long‐term experimental drought alters floral scent and pollinator visits in a Mediterranean plant community despite overall limited impacts on plant phenotype and reproduction

Abstract

HAL is a multi-disciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L'archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d'enseignement et de recherche français ou étrangers, des laboratoires publics ou privés.

Advances and knowledge gaps on climate change impacts on honey bees and beekeeping: A systematic review

“…Instead, most studies were based on weather data, as well as experimental indoor and outdoor environments (e.g., Butolo et al., 2021; Jaworski et al., 2022; Maluf et al., 2022; Martín‐Hernández et al., 2009). It is important also to note that several studies only declare the environmental variables employed but do not provide details on the temporal scales considered in their analysis (e.g., Cánovas et al., 2014; Cruz et al., 2022; Hung et al., 2018).…”

“…An increase in precipitation could exert negative effects mainly on hive homeostasis (e.g., internal temperature and relative humidity of brood and feed area; Gil‐Lebrero et al., 2020), food reserves (e.g., reduced pollen richness and diversity, colony weight gain, and mean annual yield; Montoya‐Pfeiffer et al., 2021; Gajardo‐Rojas et al., 2022; Quinlan et al., 2022), incidence of diseases (European foulbrood Melissococcus plutonius ; Rowland et al., 2021), changes in microbiome (e.g., decreasing symbionts; Castelli et al., 2022), and plant–pollinator interactions (e.g., decreasing abundance on fields; Thomson, 2016), as well affect the distribution pattern of A. mellifera (Cánovas et al., 2014). Contrarily, a decrease in precipitations can affect the behavior (e.g., early appearance dates; Gordo et al., 2010), reduce honey production and exportations (Gajardo‐Rojas et al., 2022; Gounari et al., 2022), and reduce plant–pollinator interactions (e.g., frequency visiting; Jaworski et al., 2022; Maluf et al., 2022). Furthermore, changes in precipitation patterns are expected to affect the distribution of different pests (Hosni et al., 2022; Tihelka et al., 2021) and diseases (Giliba et al., 2020), as well as produce changes in the geographic distribution of different lineages of A. mellifera (Canovás et al., 2014).…”

Biodiversity and Challenges of Honey Bee Population in Pakistan

“…Meanwhile, sudden flood situations are also causing honey bee colony losses in Pakistan [28]. Climatic changes impact the foraging behavior of honey bees [29]. Farooqi et al [9] studied the impact of abiotic factors (light, temperature, wind, humidity) on the foraging behavior of two native honey bee species (A. dorsata and A. florea) in Bahawalpur, Punjab-Pakistan.…”

Chemistry, biosynthesis and biology of floral volatiles: roles in pollination and other functions

“…171 Regarding scent composition, different compounds were responsible in the various study species for differences between drought and control plants. 142,168,169,171,172 For example, in Ipomopsis aggregata, 1,3octadiene (117) and benzyl alcohol (99) were released in higher amounts in wetter than drier conditions, whereas a-pinene (72), (E)-b-ocimene (62) and (E,E)-a-farnesene (63) were released in highest amounts in drier conditions. 168 This journal is © The Royal Society of Chemistry 2023…”

“…Bioassays with compounds that were previously shown to elicit antennal responses in butteries 270 demonstrated that 4-oxoisophorone ( 169) and oxoisophorone epoxide (170) were highly effective in eliciting feeding responses in peacock butteries. Blends of the other terpenes [b-cyclocitral (171), farnesene (172), geranylacetone (149), (E)-b-ocimene (62)] and of aromatic compounds [benzaldehyde (88), benzyl alcohol ( 99), (E)-cinnamyl alcohol ( 154), (E)-cinnamaldehyde (155), phenylacetaldehyde (83), 2-phenylethanol ( 84)] were less effective. The buttery bush releases 169 and 170 in higher amounts than other plants, 271 explaining its strong attractiveness to the peacock buttery and potentially other Lepidoptera pollinators.…”