Exploring Helianthus Species for Resilience to Drought During the Critical Reproductive Stage

Plants, Journal Year: 2025, Volume and Issue: 14(4), P. 631 - 631

Published: Feb. 19, 2025

Drought stress during the reproductive phase of sunflower can significantly reduce achene yield by affecting inflorescence size, nectar quality, and pollinator activity. This study aimed to analyze morphological characteristics region, quantify sugar components, evaluate presence pollination success in wild Helianthus species as an important genetic resource for breeding cultivated sunflowers under drought conditions. Morphological investigations were conducted flowering development phases with a stereo microscope calipers. Nectar concentrations analyzed via HPLC, was monitored twice week two months. highlights correlation between evaluated traits, emphasizing their importance indicators. Significant differences observed characters, among species. annuus argophyllus exhibited superior performance high larger inflorescences, enabling successful higher yield. In contrast, debilis demonstrated lower efficiency, percentage empty achenes. These findings provide valuable insights programs, highlighting H. promising resources developing genotypes increased improved floral traits adapted

Language: Английский

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Seasonal variation in the general availability of floral resources for pollinators in northwest Europe: A review of the data

Biological Conservation, Journal Year: 2024, Volume and Issue: 298, P. 110774 - 110774

Published: Aug. 27, 2024

Language: Английский

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Exploring relationships between time of day and pollinator activity in the context of pesticide use

Basic and Applied Ecology, Journal Year: 2023, Volume and Issue: 72, P. 74 - 81

Published: June 15, 2023

Pesticide exposure can be harmful to insect pollinators and the ecosystem services they provide. As pesticide guidelines warn against applying such products when are active, it is important determine how pollinator activity changes with time of day most appropriate spray these chemicals. We walked transects from sunrise sunset in oilseed rape (Brassica napus L.) fields Ireland capture abundance honeybees, bumblebees, solitary bees, hoverflies across daylight hours. also recorded representative species three bee groups at their nests similar periods compare field observations. Peak was mid-afternoon fewer individuals early morning late evening for all groups. At nest we observed patterns that broadly reflected but indicated bees active earlier later than those on crop. However, there were differences between Overall, honeybee found peak middle day, while bumblebee more consistent throughout Hoverflies relatively abundant increased number towards afternoon evening. Our results confirm current recommendations application should avoided active. diversity responses within accounted shaping guidelines, clearly defining optimal timings end users difficult needs further consideration as will vary regions crops. Further research explore impacts efficacy residues post-application allow full evaluation practical beneficial timing may aiming protect exposure.

Language: Английский

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Effects of floral resources on honey bee populations in Mexico: Using dietary metabarcoding to examine landscape quality in agroecosystems

Ecology and Evolution, Journal Year: 2024, Volume and Issue: 14(6)

Published: June 1, 2024

Abstract The decline of honey bee populations significantly impacts the human food supply due to poor pollination and yield decreases essential crop species. Given reduction pollinators, research into critical landscape components, such as floral resource availability land use change, might provide valuable information about nutritional status health colonies. To address this issue, we examine effects factors like agricultural area, urban climatic factors, including maximum temperature, minimum relative humidity, precipitation, on hive 326 colonies across varying landscapes in Mexico. DNA metabarcoding facilitated precise identification pollen from 267 plant species, encompassing 243 genera 80 families, revealing a primary herb‐based diet. Areas characterized by high diversity exhibited greater within colony. Conversely, situated regions with higher proportions demonstrated lower density. ambient temperature outside hives positively correlated diversity, aligning simultaneous decrease humidity influenced both density colony foraged pollen. Our national‐level study investigated dietary size different habitat types, latitudes, conditions, varied levels types disturbances. This effort was taken gain better insight mechanisms driving declines populations. illustrates need for more biodiverse landscapes, preservation diverse habitats, conservation natural semi‐natural spaces. These measures can help improve quality other well restore ecosystem processes, pest control.

Language: Английский

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Expert knowledge-based modelling approach for mapping beekeeping suitability area

Ecological Informatics, Journal Year: 2024, Volume and Issue: 80, P. 102530 - 102530

Published: Feb. 23, 2024

It is becoming increasingly accepted that beekeeping declining due to the damaging effect of global changes such as climate and land-use change directly indirectly impact Apis Melliferas. Despite numerous investigations, a comprehensive study incorporates both local knowledge has yet be conducted. For long time, researchers have suggested expert should taken into account when creating decision support tools for managing activities related natural resources, beekeeping. Unlike previous studies, this research seeks tackle these questions while also introducing concept ecosystem service in modelling, offering fresh perspective on sustainable land use. To achieve goal, we combined several methods, including using literature knowledge, beekeeper multi-source geospatial data. These data are employed hierarchical fuzzy inference system unified way. The proposed approach was applied Québec region technique appears reliable effective. validation step revealed landscape variable, particularly area used agriculture or grassland, had greatest hive weight throughout season. In addition, demonstrated meteorological factors rainfall relative humidity strongly correlated We showed access can critical factor decision-making industry, thus suggest wild-bees conservationists, decision-makers, farmers, beekeepers, other stakeholders adopt collaborative approach.

Language: Английский

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Nectar Production and Three Main Sugars in Nectar of Salvia pratensis and Salvia glutinosa in Correlation with Abiotic Factors

Agriculture, Journal Year: 2024, Volume and Issue: 14(5), P. 668 - 668

Published: April 25, 2024

Floral nectar is mainly a reward in the form of food for pollinators. Its composition plays an important role when pollinators choose their food. Several studies have shown that popularity flowers with influenced by concentration and ratio sugars. Here, we present chemical regard to three main sugars concentrations correlation abiotic factors plant species Salvia pratensis L. glutinosa through 2023 flowering season. We sampled using microcapillaries at different times during day on sites nature. Our results show production both highest around 12 a.m. The factor affects soil temperature, while UVB radiation does not influence production. Air temperature air humidity affect S. glutinosa, pratensis. most represented sugar sucrose, has more glucose fructose. effect sucrose level, although it any direct productivity.

Language: Английский

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Sunflowers Alter Anthesis Dynamics Under Heat Stress to Maintain Coordination between Pollinator Visits and Pollen Presentation

Published: Jan. 1, 2025

Language: Английский

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Decline in Honeybees and Its Consequences for Beekeepers and Crop Pollination in Western Nepal

Insects, Journal Year: 2024, Volume and Issue: 15(4), P. 281 - 281

Published: April 16, 2024

In understudied regions of the world, beekeeper records can provide valuable insights into changes in pollinator population trends. We conducted a questionnaire survey 116 beekeepers mountainous area Western Nepal, where native honeybee Apis cerana is kept as managed bee. complemented with field data on insect–crop visitation, household income survey, and an interview local lead beekeeper. total, 76% reported declines honeybees, while 86% 78% honey yield number beehives, respectively. Honey per hive fell by 50% between 2012 2022, whilst occupied hives decreased 44%. Beekeepers ranked climate change declining flower abundance most important drivers decline. This raises concern for future food economic security this region, sales contribute to 16% total income, plays major role crop pollination, contributing more than all visits apple, cucumber, pumpkin. To mitigate further declines, we promote habitat wildflower preservation, using well-insulated log buffer bees against increasingly extreme temperature fluctuations.

Language: Английский

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Beekeeping suitability prediction based on an adaptive neuro-fuzzy inference system and apiary level data

Ecological Informatics, Journal Year: 2025, Volume and Issue: unknown, P. 103015 - 103015

Published: Jan. 1, 2025

Language: Английский

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Advancing Sustainable Agriculture Through Bumblebee Pollination: Bibliometric Insights and Future Directions

Sustainability, Journal Year: 2025, Volume and Issue: 17(5), P. 2177 - 2177

Published: March 3, 2025

Bumblebees (Bombus spp.) are pivotal to sustaining biodiversity and enhancing agricultural productivity, thanks their unique pollination mechanisms, including “buzz pollination”. Their ability operate under adverse conditions—low temperatures dim light—makes them essential for crops like tomatoes, peppers, blueberries. This study synthesizes the ecological behavioral traits of bumblebees, such as floral fidelity vibration pollination, explores indispensable role in systems, particularly greenhouse open-field farming. By employing a bibliometric analysis, this review identifies critical research trends emerging frontiers bumblebee integration with precision agriculture technologies remote sensing artificial intelligence. Notably, there is increasing on impacts climate change behavior distribution, studies focusing how environmental stressors influence efficiency. Additionally, potential using bumblebees agroecological approaches crop resilience changing climates gaining traction. Moreover, it highlights challenges posed by habitat loss, pesticide exposure, change, emphasizing urgency conservation efforts. proposes interdisciplinary strategies optimizing services, aiming support sustainable strengthen ecosystem resilience. The findings provide theoretical practical insights leveraging achieve global food security stability.

Language: Английский

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