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Pignatelli A, Benedusi M, Barbieri M, Pecorelli A, Valacchi G. Tropospheric ozone effect on olfactory perception and olfactory bulb dopaminergic interneuron excitability. Neurotoxicology 2024; 104:36-44. [PMID: 39004287 DOI: 10.1016/j.neuro.2024.07.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Revised: 06/14/2024] [Accepted: 07/04/2024] [Indexed: 07/16/2024]
Abstract
Ozone (O3) forms in the Earth's atmosphere, both naturally and by reactions of man-made air pollutants. Deleterious effects of O3 have been found in the respiratory system. Here, we examine whether O3 alters olfactory behavior and cellular properties in the olfactory system. For this purpose, mice were exposed to O3 at a concentration found in highly polluted city air [0.8 ppm], and the behavior elicited by social and non-social odors in habituation/dishabituation tests was assessed. In addition, the electrical responses of dopaminergic olfactory bulb (OB) neurons were also evaluated. O3 differentially compromises olfactory perception to odors: it reduces responses to social and non-social odors in Swiss Webster mice, while this effect was observed in C57BL/6 J mice only for some non-social odors. Additionally, O3 reduced the rate of spontaneous spike firing in periglomerular dopaminergic cells (PG-DA) of the OB. Because this effect could reflect changes in excitability and/or synaptic inputs, the ability of O3 to alter PG-DA spontaneous activity was also tested together with cell membrane resistance, membrane potential, rheobase and chronaxie. Taken together, our data suggest the ability of O3 to affect olfactory perception.
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Affiliation(s)
- Angela Pignatelli
- Dept. of Neuroscience and Rehabilitation, University of Ferrara, Ferrara 44121, Italy.
| | - Mascia Benedusi
- Dept. of Neuroscience and Rehabilitation, University of Ferrara, Ferrara 44121, Italy.
| | - Mario Barbieri
- Dept. of Neuroscience and Rehabilitation, University of Ferrara, Ferrara 44121, Italy.
| | - Alessandra Pecorelli
- Dept. of Environmental and Prevention Sciences, University of Ferrara, Ferrara 44121, Italy.
| | - Giuseppe Valacchi
- Dept. of Environmental and Prevention Sciences, University of Ferrara, Ferrara 44121, Italy; Dept. of Animal Sciences, Plants for Human Health Institute, NC Research Campus, NC State University, Kannapolis, NC 28081, USA; Dept. of Food and Nutrition, Kyung Hee University, Seoul 26723, Republic of Korea.
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Moser AY, Brown WY, Bizo LA. Use of a habituation-dishabituation test to determine canine olfactory sensitivity. J Exp Anal Behav 2022; 118:316-326. [PMID: 36121596 PMCID: PMC9804587 DOI: 10.1002/jeab.788] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Revised: 07/23/2022] [Accepted: 07/28/2022] [Indexed: 01/05/2023]
Abstract
The habituation-dishabituation (H-D) paradigm is an established measure of sensory perception in animals. However, it has rarely been applied to canine olfaction. It proposes that animals will lose interest in, or habituate to, a stimulus after successive exposures but will regain interest in, or dishabituate to, a novel stimulus if they can perceive it. This study assessed an H-D test's practicability to determine dogs' olfactory detection thresholds (ODTs) for a neutral odorant. A random selection of mixed-breed pet dogs (n = 26) participated in two H-D tests in a repeated-measures crossover design. They were first habituated to a carrier odor and then presented with either ascending concentrations of n-amyl acetate in the known ODT range (experimental condition) or repeated carrier odor presentations (control condition). No single odor concentration elicited dishabituation in the majority of the dogs. However, individual dogs dishabituated at differing experimental concentrations significantly more often than in the control condition (p = .012). These findings provide some tentative support for using this method in studying canine olfaction. However, further assessment and refinement are needed before it can be a viable alternative to traditional ODT measurement.
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Affiliation(s)
- Ariella Y. Moser
- Canine and Equine Research Group, School of Environmental and Rural ScienceUniversity of New EnglandAustralia
| | - Wendy Y. Brown
- Canine and Equine Research Group, School of Environmental and Rural ScienceUniversity of New EnglandAustralia
| | - Lewis A. Bizo
- School of PsychologyUniversity of New EnglandAustralia,Faculty of Arts and Social SciencesUniversity of Technology SydneyAustralia,Faculty of Business, Justice, and Behavioural SciencesCharles Sturt UniversityAustralia
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White TE, Latty T, Umbers KDL. The exploitation of sexual signals by predators: a meta-analysis. Proc Biol Sci 2022; 289:20220444. [PMID: 35642366 PMCID: PMC9156902 DOI: 10.1098/rspb.2022.0444] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Sexual signals are often central to reproduction, and their expression is thought to strike a balance between advertising to mates and avoiding detection by predatory eavesdroppers. Tests of the predicted predation costs have produced mixed results, however. Here we synthesized 187 effects from 78 experimental studies in a meta-analytic test of two questions; namely, whether predators, parasites and parasitoids express preferences for the sexual signals of prey, and whether sexual signals increase realized predation risk in the wild. We found that predators and parasitoids express strong and consistent preferences for signals in forced-choice contexts. We found a similarly strong overall increase in predation on sexual signallers in the wild, though here it was modality specific. Olfactory and acoustic signals increased the incidence of eavesdropping relative to visual signals, which experienced no greater risk than controls on average. Variation in outcome measures was universally high, suggesting that contexts in which sexual signalling may incur no cost, or even reduce the incidence of predation, are common. Our results reveal unexpected complexity in a central viability cost to sexual signalling, while also speaking to applied problems in invasion biology and pest management where signal exploitation holds promise for bio-inspired solutions.
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Affiliation(s)
- Thomas E. White
- School of Life and Environmental Sciences, The University of Sydney, Sydney 2106, Australia
| | - Tanya Latty
- School of Life and Environmental Sciences, The University of Sydney, Sydney 2106, Australia
| | - Kate D. L. Umbers
- School of Science, Western Sydney University, Sydney, New South Wales 2751, Australia,Hawkesbury Institute for the Environment, Western Sydney University, Penrith, New South Wales 2751, Australia
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Moseby K, McGregor H. Feral Cats Use Fine Scale Prey Cues and Microhabitat Patches of Dense Vegetation When Hunting Prey in Arid Australia. Glob Ecol Conserv 2022. [DOI: 10.1016/j.gecco.2022.e02093] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
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Oñate-Casado J, Porteš M, Beran V, Petrusek A, Petrusková T. An experience to remember: lifelong effects of playback-based trapping on behaviour of a migratory passerine bird. Anim Behav 2021. [DOI: 10.1016/j.anbehav.2021.09.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Andrewartha TA, Evans MJ, Batson WG, Manning AD, Price C, Gordon IJ, Barton PS. Outfoxing the fox: Effect of prey odor on fox behavior in a pastoral landscape. CONSERVATION SCIENCE AND PRACTICE 2021. [DOI: 10.1111/csp2.516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
Affiliation(s)
- Tim A. Andrewartha
- Fenner School of Environment and Society Australian National University Acton Australian Capital Territory Australia
| | - Maldwyn J. Evans
- Fenner School of Environment and Society Australian National University Acton Australian Capital Territory Australia
- Department of Ecosystem Studies, Graduate School of Agricultural and Life Sciences University of Tokyo Tokyo Japan
| | - William G. Batson
- Mulligans Flat Woodland Sanctuary ACT Parks and Conservation Service Forde Australian Capital Territory Australia
- Capital Woodlands and Wetlands Conservation Trust Forde Australian Capital Territory Australia
- NSW National Parks and Wildlife Service Blue Mountains Branch Blackheath New South Wales Australia
| | - Adrian D. Manning
- Fenner School of Environment and Society Australian National University Acton Australian Capital Territory Australia
| | - Catherine Price
- School of Life and Environmental Sciences University of Sydney Sydney New South Wales Australia
| | - Iain J. Gordon
- Fenner School of Environment and Society Australian National University Acton Australian Capital Territory Australia
- Division of Tropical Environments & Societies James Cook University Townsville Queensland Australia
- The James Hutton Institute Cragiebuckler, Aberdeen Scotland UK
- Land & Water, CSIRO Townsville Australia
| | - Philip S. Barton
- Fenner School of Environment and Society Australian National University Acton Australian Capital Territory Australia
- School of Science, Psychology and Sport Federation University Australia, University Drive Mount Helen Victoria Australia
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Norbury GL, Price CJ, Latham MC, Brown SJ, Latham ADM, Brownstein GE, Ricardo HC, McArthur NJ, Banks PB. Misinformation tactics protect rare birds from problem predators. SCIENCE ADVANCES 2021; 7:7/11/eabe4164. [PMID: 33692107 PMCID: PMC7946364 DOI: 10.1126/sciadv.abe4164] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Accepted: 01/22/2021] [Indexed: 05/28/2023]
Abstract
Efficient decision-making integrates previous experience with new information. Tactical use of misinformation can alter choice in humans. Whether misinformation affects decision-making in other free-living species, including problem species, is unknown. Here, we show that sensory misinformation tactics can reduce the impacts of predators on vulnerable bird populations as effectively as lethal control. We repeatedly exposed invasive mammalian predators to unprofitable bird odors for 5 weeks before native shorebirds arrived for nesting and for 8 weeks thereafter. Chick production increased 1.7-fold at odor-treated sites over 25 to 35 days, with doubled or tripled odds of successful hatching, resulting in a 127% increase in modeled population size in 25 years. We demonstrate that decision-making processes that respond to changes in information reliability are vulnerable to tactical manipulation by misinformation. Altering perceptions of prey availability offers an innovative, nonlethal approach to managing problem predators and improving conservation outcomes for threatened species.
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Affiliation(s)
- Grant L Norbury
- Manaaki Whenua-Landcare Research, Alexandra 9340, New Zealand.
| | - Catherine J Price
- School of Life and Environmental Sciences, The University of Sydney, Sydney, New South Wales 2006, Australia
| | | | | | | | | | | | - Nikki J McArthur
- Wildlife Management International Ltd., Blenheim 7201, New Zealand
| | - Peter B Banks
- School of Life and Environmental Sciences, The University of Sydney, Sydney, New South Wales 2006, Australia
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