Influence of predation pressure on the escape behaviour of Podarcis muralis lizards

Diego-Rasilla, Francisco J.

doi:10.1016/s0376-6357(03)00026-3

Cited by 63 publications

(49 citation statements)

References 42 publications

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“…Consequently, the energy available for escape behavior at any point in time during the day should also vary similarly (and may mirror activity patterns, see Results). In other studies, short, fixed time intervals for observing lizard escape responses are common (Cooper Jr. 2003, Diego-Rasilla 2003. And, in some cases, the exact time frame for behavioral observations is not reported (Cooper Jr. and Peréz-Mellado 2004, Cooper Jr. 2005, 2008.…”

Section: Discussionmentioning

confidence: 99%

“…1 of Blamires (1999) suggests temporal variation in FID by L. temporalis], and therefore this consideration may represent a potentially fruitful avenue for future work. In particular, for species in which a relationship is detected between environmental temperatures and FID (e.g., Cooper Jr. 2000, 2003, it would be important to include temperature as an additional covariate in the statistical model to disentangle the effects of temperature from other factors related to time of day on escape performance.…”

Section: Discussionmentioning

confidence: 99%

“…In addition, some support exists for environmental temperatures affecting the escape response (Blamires 1999, Cooper Jr. 2000, 2003. Air temperature was recorded to the nearest 0.5 o C at 15-minute intervals using an outdoor tube thermometer affixed to a wooden post at a location approximating the center of the study site by another researcher.…”

Section: Methodsmentioning

confidence: 99%

“…In this scenario, the risk of predation should be elevated prior to predator detection, possibly due to the noise generated by normal foraging or mate searching behavior, and thus escape should be initiated soon after a predator begins its approach. Alternatively, FID may also be affected by other factors that vary throughout the day, such as temperature (Cooper Jr. 2000, 2003. Lizard activity and life histories are strongly tied to temperature (Adolph and Porter 1993), and air and substrate temperature in particular can affect their locomotor capacity (Crowley 1985) and movement rates (Grant and Dunham 1988).…”

Section: Introductionmentioning

confidence: 99%

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Temporal and ontogenetic variation in the escape response of Ameiva festiva (Squamata, Teiidae)

Lattanzio

2014

Phyllomedusa

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Temporal and ontogenetic variation in the escape response of Ameiva festiva (Squamata, Teiidae). Several factors have been shown to affect lizard escape behavior (flight initiation distance or FID, the distance between predator and prey when the prey initiates escape). Patterns of daily activity, such as foraging or movement behavior, vary with respect to time of day, supporting that escape responses may vary temporally as well. However, there remains scant information regarding the effects of time of day on FID. During peak activity, FID may decrease due to increased cost of giving up resources (e.g., prey or potential mates). An alternative hypothesis is that FID may increase because lizard activity in general may serve to alert a predator in advance of its approach. A lizard in this scenario may be favored to flee sooner rather than later. Moreover, juvenile and adult lizards of multiple species may differ in behavioral, ecological, and morphological traits that could influence escape decisions. I tested the effects of time of day (in 30-min intervals) and age (juvenile or adult) on the FID of a tropical whiptail lizard, Ameiva festiva in Costa Rica. I found that A. festiva escape responses varied with time of day such that in general, their FID decreased throughout the day. In addition, I observed a peak in FID from mid to late-morning that matches published estimates of peak activity times for A. festiva. Overall, juvenile A. festiva initiated an escape response sooner than adults, which may be related to differences in perceived risk associated with differences in size and predator experience between the two age groups. I conclude that escape responses may be contingent on both the activity level of the animal at the time of approach and its age.Keywords: activity pattern, age, flight initiation distance, lizard, optimal escape theory, time of day. 18Phyllomedusa -13(1), August 2014 ResumoVariação temporal e ontogenética na resposta de fuga de Ameiva festiva (Squamata, Teiidae). Diversos fatores podem influenciar o comportamento de fuga dos lagartos (distância de início da fuga ou FID, a distância entre o predador e a presa quando esta inicia a fuga). Os padrões diários de atividade, como os comportamentos de forrageio ou de movimentação, variam em função da hora do dia, sustentando a ideia de que as respostas de fuga podem variar também temporalmente. Contudo, permenecem escassas as informações relacionadas aos efeitos da hora do dia sobre a FID. Durante o pico de atividade, a FID pode diminuir devido ao aumento do custo de desistir de recursos (e.g., presas ou parceiros potenciais). Uma hipótese alternative é a de que a FID pode aumentar porque a atividade do lagarto em geral pode servir para alertar um predador antes de sua aproximação. Esse cenário pode favorecer a fuga precoce de um lagarto, em vez de tardia. Além disso, lagartos juvenis e adultos de diversas espécies podem diferir em características de comportamento, ecológicas e morfológicas que poderiam influenciar as decisões de fuga. Test...

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Temporal and ontogenetic variation in the escape response of Ameiva festiva (Squamata, Teiidae)

Lattanzio

2014

Phyllomedusa

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“…Most techniques employed to survey organisms assume very high detection probabilities. Yet, in general, escape behaviour for many herpetofaunal species is poorly known, with most studies focusing on abundant terrestrial species (e.g., Losos et al 2002;Diego-Rasilla 2003;Whiting et al 2003;Downes & Hoefer 2004). Locomotion in fossorial herpetofauna has not been extensively studied either (but see Gans AFRICAN JOURNAL OF HERPETOLOGY 58(1) 20091985Leonard 1989;Navas et al 2004), and mechanisms of escape are poorly known.…”

mentioning

confidence: 99%

Breaking ground: Quantitative fossorial herpetofaunal ecology in South Africa

Maritz¹,

Alexander²

2009

African Journal of Herpetology

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Escape behavior of the green lizard (Lacerta viridis) in the Slovak Karst

Majláth

Majláthová

2009

acta ethol

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The escape behavior of the green lizard (Lacerta viridis) was investigated in natural conditions of the Slovak Karst, Slovakia. The seasonal changes of approach distances and types of escape behavior were monitored for both sexes, also in relation to differences in anthropogenic influence. In our study, the escape behavior of green lizard changed significantly during the season, and differ significantly between localities and in respect to human disturbance. At the beginning of the season, females stayed in close proximity to a refuge and hid immediately after being disturbed. Among males, the distance to and from a refuge was longer and any accessible protrusions were used to hide. The approach distance was greater among males. During the mating period, approach distance for females and males was similar and both sexes hid in a refuge. However, after the mating period, the approach distance for females was decreasing, whereas that of males begun to increase.

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Influence of predation pressure on the escape behaviour of Podarcis muralis lizards

Cited by 63 publications

References 42 publications

Temporal and ontogenetic variation in the escape response of Ameiva festiva (Squamata, Teiidae)

Temporal and ontogenetic variation in the escape response of Ameiva festiva (Squamata, Teiidae)

Breaking ground: Quantitative fossorial herpetofaunal ecology in South Africa

Escape behavior of the green lizard (Lacerta viridis) in the Slovak Karst

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