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Outputs (27)

Pollinator-flower interactions in gardens during the covid 19 pandemic lockdown of 2020 (2022)
Journal Article
Ollerton, J., Trunschke, J., Havens, K., Landaverde-González, P., Keller, A., Gilpin, A., Rodrigo Rech, A., Baronio, G., Phillips, B., Mackin, C., Stanley, D., Treanore, E., Baker, E., Rotheray, E., Erickson, E., Fornoff, F., Brearley, F., Ballantyne, G.

During the main COVID-19 global pandemic lockdown period of 2020 an impromptu set of pollination ecologists came together via social media and personal contacts to carry out standardised surveys of the flower visits and plants in gardens. The surveys... Read More about Pollinator-flower interactions in gardens during the covid 19 pandemic lockdown of 2020.

An investigation of the role of leadership in consensus decision-making (2022)
Journal Article
Perret, C., & Powers, S. T. (2022). An investigation of the role of leadership in consensus decision-making. Journal of Theoretical Biology, 543, Article 111094. https://doi.org/10.1016/j.jtbi.2022.111094

Leadership is a widespread phenomena in social organisms and it is recognised to facilitate coordination between individuals. While the role of leadership in group foraging or swarm movement is well understood, it is not clear if leaders would also b... Read More about An investigation of the role of leadership in consensus decision-making.

Four levers of reciprocity across human societies: concepts, analysis and predictions (2022)
Journal Article
Lehmann, L., Powers, S. T., & van Schaik, C. P. (2022). Four levers of reciprocity across human societies: concepts, analysis and predictions. Evolutionary Human Sciences, 4, Article e11. https://doi.org/10.1017/ehs.2022.7

This paper surveys five human societal types – mobile foragers, horticulturalists, pre-state agriculturalists, state-based agriculturalists and liberal democracies – from the perspective of three core social problems faced by interacting individuals:... Read More about Four levers of reciprocity across human societies: concepts, analysis and predictions.

Eurasian lynx natal den site and maternal home-range selection in multi-use landscapes of Norway: Habitat selection by denning Eurasian lynx (2015)
Journal Article
White, S., Briers, R. A., Bouyer, Y., Odden, J., & Linnell, J. D. C. (2015). Eurasian lynx natal den site and maternal home-range selection in multi-use landscapes of Norway: Habitat selection by denning Eurasian lynx. Journal of Zoology, 297(2), 87-98. h

In carnivores, securing suitable den sites with associated early maternal home ranges is important for successful reproduction, and understanding natal den site selection is essential to ensure that these habitats are protected from human disturbance... Read More about Eurasian lynx natal den site and maternal home-range selection in multi-use landscapes of Norway: Habitat selection by denning Eurasian lynx.

Habitat segregation by female humpback whales in Hawaiian waters: avoidance of males? (2013)
Journal Article
Craig, A. S., Herman, L. M., Pack, A. A., & Waterman, J. (2014). Habitat segregation by female humpback whales in Hawaiian waters: avoidance of males?. Behaviour, 151(5), 613-631. https://doi.org/10.1163/1568539x-00003151

Humpback whales congregate annually in low-latitude winter breeding and calving grounds. While on these grounds, females with a dependent calf (‘maternal females’) are sometimes closely attended by one or more male escorts. Using data collected from... Read More about Habitat segregation by female humpback whales in Hawaiian waters: avoidance of males?.

Insights from measuring pollen deposition: quantifying the pre-eminence of bees as flower visitors and effective pollinators (2017)
Journal Article
Willmer, P. G., Cunnold, H., & Ballantyne, G. (2017). Insights from measuring pollen deposition: quantifying the pre-eminence of bees as flower visitors and effective pollinators. Arthropod-Plant Interactions, 11(3), 411-425. https://doi.org/10.1007/s1182

Using our accumulated datasets from Kenyan savanna, Mediterranean garigue, UK gardens and heathland, involving 76 plants from 30 families, we present detailed data to quantify the superiority of bees as pollinators of most flowering plants when compa... Read More about Insights from measuring pollen deposition: quantifying the pre-eminence of bees as flower visitors and effective pollinators.

Nectar Theft and Floral Ant-Repellence: A Link between Nectar Volume and Ant-Repellent Traits? (2012)
Journal Article
Ballantyne, G., & Willmer, P. (2012). Nectar Theft and Floral Ant-Repellence: A Link between Nectar Volume and Ant-Repellent Traits?. PLOS ONE, 7(8), Article e43869. https://doi.org/10.1371/journal.pone.0043869

As flower visitors, ants rarely benefit a plant. They are poor pollinators, and can also disrupt pollination by deterring other flower visitors, or by stealing nectar. Some plant species therefore possess floral ant-repelling traits. But why do parti... Read More about Nectar Theft and Floral Ant-Repellence: A Link between Nectar Volume and Ant-Repellent Traits?.

Floral visitors and ant scent marks: noticed but not used? (2012)
Journal Article
Ballantyne, G., & Willmer, P. (2012). Floral visitors and ant scent marks: noticed but not used?. Ecological Entomology, 37(5), 402-409. https://doi.org/10.1111/j.1365-2311.2012.01378.x

1. Bee behaviour when visiting flowers is mediated by diverse chemical cues and signals, from the flower itself and from previous visitors to the flower. Flowers recently visited by bees and hoverflies may be rejected for a period of time by subseque... Read More about Floral visitors and ant scent marks: noticed but not used?.

Why flower visitation is a poor proxy for pollination: measuring single-visit pollen deposition, with implications for pollination networks and conservation (2013)
Journal Article
King, C., Ballantyne, G., & Willmer, P. G. (2013). Why flower visitation is a poor proxy for pollination: measuring single-visit pollen deposition, with implications for pollination networks and conservation. Methods in Ecology and Evolution, 4(9), 811-81

Summary The relative importance of specialized and generalized plant-pollinator relationships is contentious, yet analyses usually avoid direct measures of pollinator quality (effectiveness), citing difficulties in collecting such data in the field... Read More about Why flower visitation is a poor proxy for pollination: measuring single-visit pollen deposition, with implications for pollination networks and conservation.

Habitat preferences by individual humpback whale mothers in the Hawaiian breeding grounds vary with the age and size of their calves (2017)
Journal Article
Pack, A. A., Herman, L. M., Craig, A. S., Spitz, S. S., Waterman, J. O., Herman, E. Y., Deakos, M. H., Hakala, S., & Lowe, C. (2017). Habitat preferences by individual humpback whale mothers in the Hawaiian breeding grounds vary with the age and size of t

We investigated whether calf age and calf size influence habitat choice by humpback whale motherecalf pairs in their breeding grounds. During 1997e2008, we conducted focal follows of motherecalf pairs in Hawaiian waters. Tail-fluke identification pho... Read More about Habitat preferences by individual humpback whale mothers in the Hawaiian breeding grounds vary with the age and size of their calves.

Pollinator importance networks illustrate the crucial value of bees in a highly speciose plant community (2017)
Journal Article
Ballantyne, G., Baldock, K. C. R., Rendell, L., & Willmer, P. (2017). Pollinator importance networks illustrate the crucial value of bees in a highly speciose plant community. Scientific Reports, 7(1), Article 8389. https://doi.org/10.1038/s41598-017-0879

Accurate predictions of pollination service delivery require a comprehensive understanding of the interactions between plants and flower visitors. To improve measurements of pollinator performance underlying such predictions, we surveyed visitation f... Read More about Pollinator importance networks illustrate the crucial value of bees in a highly speciose plant community.

Estimating pollinator performance of visitors to the self-incompatible crop-plant Brassica rapa by single visit deposition and pollen germination: a comparison of methods (2017)
Journal Article
Patchett, R., Ballantyne, G., & Willmer, P. (2017). Estimating pollinator performance of visitors to the self-incompatible crop-plant Brassica rapa by single visit deposition and pollen germination: a comparison of methods. Journal of Pollination Ecology,

Estimating the pollen-deposition effectiveness of flower visitors is fundamental to understanding their performance as pollinators. While estimates of visitation rates, pollen loads, and single visit deposition (SVD) are all useful proxies for perfor... Read More about Estimating pollinator performance of visitors to the self-incompatible crop-plant Brassica rapa by single visit deposition and pollen germination: a comparison of methods.

Size-assortative pairing and discrimination of potential mates by humpback whales in the Hawaiian breeding grounds (2012)
Journal Article
Pack, A. A., Herman, L. M., Spitz, S. S., Craig, A. S., Hakala, S., Deakos, M. H., …Lowe, C. (2012). Size-assortative pairing and discrimination of potential mates by humpback whales in the Hawaiian breeding grounds. Animal Behaviour, 84(4), 983-993. ht

Assortative pairing, and its relation to mate choice, has rarely been documented in mammals. Using data collected from 1998-2007, we investigated size-assortative pairing as it relates to discrimination amongst potential mates in humpback whale (Mega... Read More about Size-assortative pairing and discrimination of potential mates by humpback whales in the Hawaiian breeding grounds.

Resightings of humpback whales in Hawaiian waters over spans of 10-32 years: Site fidelity, sex ratios, calving rates, female demographics, and the dynamics of social and behavioral roles of individuals (2010)
Journal Article
Herman, L. M., Pack, A. A., Rose, K., Craig, A., Herman, E. Y. K., Hakala, S., & Milette, A. (2011). Resightings of humpback whales in Hawaiian waters over spans of 10-32 years: Site fidelity, sex ratios, calving rates, female demographics, and the dynami

From a database of approximately 5,000 Hawaiian humpback whales identified photographically between 1976 and 2010, we extracted 71 males and 39 females having resighting spans of 10 or more years, from first to most recent sighting. Findings include... Read More about Resightings of humpback whales in Hawaiian waters over spans of 10-32 years: Site fidelity, sex ratios, calving rates, female demographics, and the dynamics of social and behavioral roles of individuals.

An unexpected journey: Diurnal movement into deeper waters by humpback whale (Megaptera novaeangliae) mother-calf pairs observed off Northwest Maui, Hawai’i (2017)
Presentation / Conference Contribution
Pack, A., Craig, A., & Waterman, J. (2017, October). An unexpected journey: Diurnal movement into deeper waters by humpback whale (Megaptera novaeangliae) mother-calf pairs observed off Northwest Maui, Hawai’i. Poster presented at 22nd Biennial Conferen

Recent studies of humpback whale habitat use in the Hawaiian breeding grounds have revealed that mother-calf pairs favor shallow waters to avoid harassment from male humpbacks. However, human activity in these same shallow waters may, in theory, exe... Read More about An unexpected journey: Diurnal movement into deeper waters by humpback whale (Megaptera novaeangliae) mother-calf pairs observed off Northwest Maui, Hawai’i.

Social interactions in striped hyena inferred from camera trap data: is it more social than previously thought? (2020)
Journal Article
Tichon, J., Gilchrist, J. S., Rotem, G., Ward, P., & Spiegel, O. (2020). Social interactions in striped hyena inferred from camera trap data: is it more social than previously thought?. Current Zoology, 66(4), 345-353. https://doi.org/10.1093/cz/zoaa003

Understanding the drivers promoting sociality over solitariness in animal species is imperative for predicting future population trends and informing conservation and management. In this study we investigate the social structure of a desert dwelling... Read More about Social interactions in striped hyena inferred from camera trap data: is it more social than previously thought?.

A functional analysis reveals extremely low redundancy in global mangrove invertebrate fauna (2021)
Journal Article
Cannicci, S., Lee, S. Y., Bravo, H., Cantera-Kintz, J. R., Dahdouh-Guebas, F., Fratini, S., …Diele, K. (2021). A functional analysis reveals extremely low redundancy in global mangrove invertebrate fauna. Proceedings of the National Academy of Sciences,

Deforestation results in habitat fragmentation, decreasing diversity, and functional degradation. For mangroves, no data are available on the impact of deforestation on the diversity and functionality of the specialized invertebrate fauna, critical f... Read More about A functional analysis reveals extremely low redundancy in global mangrove invertebrate fauna.