Spatial Neophilia and Spatial Neophobia in Resident and Migratory Warblers (<i>Sylvia</i>)

Mettke-Hofmann, Claudia; Lorentzen, Sandy; Schlicht, Emmi; Schneider, Janine; Werner, Franziska

doi:10.1111/j.1439-0310.2009.01632.x

Cited by 53 publications

(49 citation statements)

References 43 publications

(109 reference statements)

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“…This result is consistent with the behavioral pattern exhibited by the males in this study and consistent with the dispersal pattern for this species (McBride et al 1969) as well as research showing that migratory birds show shorter latencies to enter novel environments than resident birds (Mettke-Hofmann et al 2009). This result is consistent with the behavioral pattern exhibited by the males in this study and consistent with the dispersal pattern for this species (McBride et al 1969) as well as research showing that migratory birds show shorter latencies to enter novel environments than resident birds (Mettke-Hofmann et al 2009).…”

Section: Physiological Responsessupporting

confidence: 92%

“…In species with sex-biased natal dispersal, the dispersing sex is likely to experience more frequent changes to their immediate social and physical environment (Pusey 1987). This result is consistent with a recent finding from (Mettke-Hofmann et al 2009), showing that migratory warblers, a species likely to experience frequent changes to its social and physical environment, are faster to approach and spend more time exploring novel environments than resident warblers. Males exhibited no difference in behavior to markedly different experiences of the NO and OFT.…”

Section: Behavioral Responsessupporting

confidence: 88%

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Effects of Isolation on Stress Responses to Novel Stimuli in Subadult Chickens (Gallus gallus)

2016

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Extensive research has examined the effects of social isolation in neonatal and adult animal populations, but few studies have examined the effect of social isolation in early adulthood. Animals reaching reproductive age often experience extensive social changes as they leave their natal site, and a social stressor like isolation may uniquely affect this age group. Furthermore, adolescence is a time when sex differences in behavior become more pronounced. As such, the effects of social stressors are likely to vary by sex. In this study, we used noninvasive methods to evaluate stress responses to social change in male and female subadult chickens (Gallus gallus). Half of the birds experienced regular sessions of social isolation over the course of 2 wk, while the other half were never isolated. Subsequently, all of the animals were exposed to a suite of three novel probes, including an open‐field test. We monitored the birds’ behavioral (head movements) and physiological (fecal glucocorticoid metabolites, FGM) response to the tests. Our results indicate that, for subadult chickens, the effect of social isolation is sex dependent: Male FGM and behavioral responses did not change with subsequent experiences, in contrast to females. Females also exhibited more social reinstatement behavior compared to males. Our results are consistent with the expectations of differences between the sexes based on changes in the social environment due to sex‐biased dispersal patterns. For both sexes, the FGM and behavioral responses varied independently, which highlights the necessity for multiple measures of stress in animal populations.

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Section: Physiological Responsessupporting

confidence: 92%

Section: Behavioral Responsessupporting

confidence: 88%

Effects of Isolation on Stress Responses to Novel Stimuli in Subadult Chickens (Gallus gallus)

2016

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“…We performed behavioural tests to quantify two responses to novelty: (i) object‐neophilia, the approach of an individual to a novel object in a familiar environment; and (ii) object‐neophobia, the avoidance of a novel object in a familiar environment (normally measured in a foraging context). Neophilia and neophobia are thought to have independent motivations and to belong to different personality dimensions (Budaev, ; Coleman & Wilson, ; Mettke‐Hofmann et al ., , ; Herborn et al ., ). To assess individual consistency in these behaviours, we repeated each test in three trials with different novel objects.…”

Section: Methodsmentioning

confidence: 97%

Urbanization and its effects on personality traits: a result of microevolution or phenotypic plasticity?

Miranda¹,

Schielzeth²,

Sonntag

et al. 2013

Global Change Biology

210

186

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Human-altered environmental conditions affect many species at the global scale. An extreme form of anthropogenic alteration is the existence and rapid increase of urban areas. A key question, then, is how species cope with urbanization. It has been suggested that rural and urban conspecifics show differences in behaviour and personality. However, (i) a generalization of this phenomenon has never been made; and (ii) it is still unclear whether differences in personality traits between rural and urban conspecifics are the result of phenotypic plasticity or of intrinsic differences. In a literature review, we show that behavioural differences between rural and urban conspecifics are common and taxonomically widespread among animals, suggesting a significant ecological impact of urbanization on animal behaviour. In order to gain insight into the mechanisms leading to behavioural differences in urban individuals, we hand-raised and kept European blackbirds (Turdus merula) from a rural and a nearby urban area under common-garden conditions. Using these birds, we investigated individual variation in two behavioural responses to the presence of novel objects: approach to an object in a familiar area (here defined as neophilia), and avoidance of an object in a familiar foraging context (defined as neophobia). Neophilic and neophobic behaviours were mildly correlated and repeatable even across a time period of one year, indicating stable individual behavioural strategies. Blackbirds from the urban population were more neophobic and seasonally less neophilic than blackbirds from the nearby rural area. These intrinsic differences in personality traits are likely the result of microevolutionary changes, although we cannot fully exclude early developmental influences.

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“…; Mettke‐Hofmann et al. ), while fewer have been conducted on wild animals (Mettke‐Hofmann et al. ; Vernelli ).…”

Section: Introductionmentioning

confidence: 99%

Cautious Crows: Neophobia in Torresian Crows (Corvus orru) Compared with Three Other Corvoids in Suburban Australia

Brown

Jones

2016

Ethology

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Corvids (Family: CORVIDAE) are a clade of some 120 species widespread throughout much of the world that have attracted the interest of researchers due to their impressive cognitive abilities. The group is, however, also generally described as neophobic, a trait that increases the difficulty of undertaking such research. In Australia, Torresian crows (Corvus orru) have, like corvid species worldwide, thrived in urban environments, sharing this habitat with a number of other corvoid (Superfamily: CORVOIDEA) species. While each of these species has successfully colonised urban areas, the extent to which neophobia is present is not known. This study empirically tested the extent to which neophobia is exhibited in wild urban Torresian crows by measuring the delaying effect of a novel object to obtaining food and any changes in neophobic behaviours displayed. This was then compared with the other urban corvoid species that inhabit similar niches. This study confirmed that Torresian crows are significantly wary of a novel objects, displaying more neophobic behaviours and taking longer to attain the food. Crow behaviour provided evidence in support of both the dangerous niche hypothesis and the two‐factor model of neophobia and neophilia. Crows also displayed these behaviours to a significantly greater extent than the three other corvoids studied. However, the individual variation in crow behaviours when exposed to a novel object was extensive. This variation may be attributed to differing behavioural types between individuals, or different experiences with novel objects or humans in the bird's past.

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Spatial Neophilia and Spatial Neophobia in Resident and Migratory Warblers (Sylvia)

Cited by 53 publications

References 43 publications

Effects of Isolation on Stress Responses to Novel Stimuli in Subadult Chickens (Gallus gallus)

Effects of Isolation on Stress Responses to Novel Stimuli in Subadult Chickens (Gallus gallus)

Urbanization and its effects on personality traits: a result of microevolution or phenotypic plasticity?

Cautious Crows: Neophobia in Torresian Crows (Corvus orru) Compared with Three Other Corvoids in Suburban Australia

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