Detecting the Smell of Disease and Injury: Scoping Evolutionary and Ecological Implications

Newman, Chris; Buesching, Christina D.

doi:10.1007/978-3-030-17616-7_17

Cited by 35 publications

(8 citation statements)

References 95 publications

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“…The interpretation of those studies was that males infected with the fungus engaged in terminal investment, emitting more pheromones at the cost of reduced survival (e.g., Reyes‐Ramírez, Reyes‐Ramírez, et al., 2019; Reyes‐Ramírez, Rocha‐Ortega, et al., 2019). As for our current results, only few studies have found that females may not use odor cues to determine the condition of males (Newman & Buesching, 2019; Wyatt, 2017). In other respects, infected males copulate for longer than healthy males.…”

Section: Discussionsupporting

confidence: 72%

Condition‐dependent male copulatory courtship and its benefits for females

Cargnelutti

Ramírez²,

Cristancho

et al. 2021

Ecology and Evolution

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Sexual selection is responsible for the development of highly elaborated traits, known as secondary sexual characters (SSCs) (Andersson, 1994;Cotton et al., 2006; Darwin, 1871). These SSCs are used during courtship to persuade and stimulate females to mate using visual, auditory, tactile, and/or chemical signals (Andersson, 1994;Eberhard, 1996;Mitoyen et al., 2019). Theory indicates that these SSCs are used by females as indicators of male quality (Cotton et al., 2004;Grafen, 1990;Zahavi, 1975). The fundamental idea is that the cost of producing and maintaining SSCs depends directly on the condition of males, which can be defined as

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Section: Discussionsupporting

confidence: 72%

Condition‐dependent male copulatory courtship and its benefits for females

Cargnelutti

Ramírez²,

Cristancho

et al. 2021

Ecology and Evolution

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“…Previous studies on other mammals have revealed avoidance of infected conspecifics [8] and faeces [18,66], but it remained unclear whether animals avoid spatial hotspots of transmission themselves, and whether these could have population-level consequences [21,22]. Badgers respond to social scent cues and may use these to detect and avoid infested or infectious individuals [67]; furthermore, they move between setts regularly to avoid accumulating parasites [64,68], abandoning highly infested setts and chambers [49]; we posit that this behaviour has emergent population-level consequences. Wytham badgers preferentially establish their setts on northwest-facing slopes in areas with sandy soils [46], and variation in internal sett temperature and humidity are associated with reproductive success [69,70].…”

Section: Discussionmentioning

confidence: 99%

Negative density-dependent parasitism in a group-living carnivore

Albery

Newman

Ross

et al. 2020

Preprint

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Animals living at high population densities are expected to experience greater exposure to disease, leading to greater parasite burdens. However, social animals can accrue immunological and hygienic benefits from group living, and individuals can often minimise exposure using avoidance behaviours, so the costs and benefits of sociality for disease are often uncertain. Here, we show in wild European badgers that population density was negatively correlated with infection with three arthropod ectoparasites and one gastrointestinal protozoan, despite highly contrasting spatial distributions among parasites. Combined survival, spatial, and social network analyses suggested that parasite avoidance was the likely cause of this negative density-dependence. These findings demonstrate that animals can organise their societies in space to minimise infection, providing evidence for a “landscape of disgust”.

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“…Various levels of social information can be conveyed through body odors, including individuality (Hold and Schleidt, 1977;Mallet and Schaal, 1998;Platek et al, 2001;Lenochova and Havlicek, 2008), self (Hold and Schleidt, 1977;Lord and Kasprzak, 1989;Mallet and Schaal, 1998;Platek et al, 2001), kin (Porter and Moore, 1981;Porter et al, 1983Porter et al, , 1985Porter et al, , 1986Porter, 1998;Schaal and Marlier, 1998;Weisfeld et al, 2003;Lundström et al, 2009;Schäfer et al, 2020), age (Haze et al, 2001;Yamazaki et al, 2010;Mitro et al, 2012), sex (Russell, 1976;Doty et al, 1978;Schleidt, 1980), andpersonality (McBurney et al, 1976;Sorokowska et al, 2012Sorokowska et al, , 2016Sorokowska, 2013a,b). Body odor can also inform about transient states such as illness (Moshkin et al, 2012;Olsson et al, 2014;Newman and Buesching, 2019), and emotions (e.g., Haviland-Jones, 1999, 2000;Prehn et al, 2006;de Groot et al, 2012de Groot et al, , 2020Zheng et al, 2018; for reviews, see Pause, 2012;Calvi et al, 2020;Kontaris et al, 2020). Beyond the mere consideration of the ability of...…”

Section: The Social Nosementioning

confidence: 99%

Olfaction in the Multisensory Processing of Faces: A Narrative Review of the Influence of Human Body Odors

et al. 2021

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A recent body of research has emerged regarding the interactions between olfaction and other sensory channels to process social information. The current review examines the influence of body odors on face perception, a core component of human social cognition. First, we review studies reporting how body odors interact with the perception of invariant facial information (i.e., identity, sex, attractiveness, trustworthiness, and dominance). Although we mainly focus on the influence of body odors based on axillary odor, we also review findings about specific steroids present in axillary sweat (i.e., androstenone, androstenol, androstadienone, and estratetraenol). We next survey the literature showing body odor influences on the perception of transient face properties, notably in discussing the role of body odors in facilitating or hindering the perception of emotional facial expression, in relation to competing frameworks of emotions. Finally, we discuss the developmental origins of these olfaction-to-vision influences, as an emerging literature indicates that odor cues strongly influence face perception in infants. Body odors with a high social relevance such as the odor emanating from the mother have a widespread influence on various aspects of face perception in infancy, including categorization of faces among other objects, face scanning behavior, or facial expression perception. We conclude by suggesting that the weight of olfaction might be especially strong in infancy, shaping social perception, especially in slow-maturing senses such as vision, and that this early tutoring function of olfaction spans all developmental stages to disambiguate a complex social environment by conveying key information for social interactions until adulthood.

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Detecting the Smell of Disease and Injury: Scoping Evolutionary and Ecological Implications

Cited by 35 publications

References 95 publications

Condition‐dependent male copulatory courtship and its benefits for females

Condition‐dependent male copulatory courtship and its benefits for females

Negative density-dependent parasitism in a group-living carnivore

Olfaction in the Multisensory Processing of Faces: A Narrative Review of the Influence of Human Body Odors

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