Effects of Capture, Observer Presence, and Captivity on Display Behavior in a Lizard

McMann, Stephen; Paterson, Ann V.

doi:10.1670/75-00a

Cited by 7 publications

(4 citation statements)

References 6 publications

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“…The push‐ups scored in this study were similar (but not necessarily identical) to ‘bobs’ described by others (McMann 2000; McMann & Paterson 2003a,b). We differentiate between push‐ups and bobs because others (McMann 2000; Paterson 2002; Tokarz et al.…”

Section: Methodssupporting

confidence: 83%

Context Dependent Territory Defense: The Importance of Habitat Structure in Anolis sagrei

Calsbeek

Marnocha

2006

Ethology

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Territoriality is a potentially costly endeavor, and several mechanisms for mitigating the costs of territoriality have been investigated in the wild. For example, territory owners can reduce the costs of defending territory boundaries by prioritizing defense of the most valuable areas within territories, investing less energy in low quality areas. We staged pairwise encounters between adult male lizards on natural territories in the wild, to test whether male brown anoles, Anolis sagrei, would differentially defend certain regions of their territories over others. Based on our observations that male A. sagrei spend most of their time on elevated perches on tree trunks or branches compared with sites on the ground, we predicted that territory residents would respond more aggressively to territory invasions that took place on elevated perches than to invasions on the ground. We measured significant differences in the behavior of residents following invasion on the ground vs. on the elevated perches, and results partially supported our hypothesis. Males performed more displays and approached intruders more often when territory invasion took place on the ground, but were quicker to attack intruders that entered territories on elevated perches. Our hypothesis was only partially supported, potentially indicating that elevated perches are preferred as outposts to monitor valuable sites on the ground. Our study provides evidence that territory defense varies not just among individuals, but also within individuals at different locations in a territory.

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Section: Methodssupporting

confidence: 83%

Context Dependent Territory Defense: The Importance of Habitat Structure in Anolis sagrei

Calsbeek

Marnocha

2006

Ethology

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“…Although an observer was present during the trials, it is unlikely that this significantly altered display behaviors, as A . sagrei in the field did not change their behaviors when observed (McMann & Paterson ). Male territories in nature range from 2.8 to 34 m 2 (Schoener & Schoener ), so are much larger than the approx.…”

Section: Discussionmentioning

confidence: 98%

“…Basking (Heat‐Glo infrared spot lamp, 50 W) and full spectrum (Repti‐Glo compact fluorescent 13 W bulb) lights, on a 14‐h light: 10‐h dark cycle, provided lizards with heat and wavelengths important for proper metabolism while in captivity. This photoperiod simulates the day length during the breeding season (McMann & Paterson ). These conditions were maintained for all trials.…”

Section: Methodsmentioning

confidence: 99%

Do Male Activity Level And Territory Quality Affect Female Association Time in The Brown Anole, Anolis sagrei?

Flanagan

Bevier

2014

Ethology

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Female mate preference is an important component of sexual selection because some male traits, such as physiology and proficiency in acquiring resources, are indicators of male quality. In lizards, the importance of female choice remains unclear as results reported from previous experiments are contradictory. Here, we investigated the influence of male activity level, its associated physiology, and territory quality on female preference, estimated as association time, for male brown anoles, Anolis sagrei. Male A. sagrei were first rated for endurance then used in mismatched‐pair female association trials. Preference was scored as the time a female spent near a male relative to the amount of time she was in his half of the trial arena, and both male and female behaviors were recorded. Levels of blood glucose were measured in males before and after the endurance tests, and before and after the association trials. Levels of stored glycogen were measured in leg muscle and liver samples collected from males after an association trial. A path analysis indicates that final blood glucose levels affect male activity and that female preference is influenced by male activity. In a second experiment, females were given a choice between a male in a territory supplemented with plants and a size‐matched male in a bare territory. Male activity levels were recorded when both males interacted with the female. In those cases, females spent more time with the more active of the two males, regardless of territory quality. Combined, these results suggest that female A. sagrei exhibit preference for male activity regardless of territory quality.

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“…In some countries, this type of study may not be submitted for ethical oversight due to low invasiveness, which could also be affecting the results. Nowadays, it is known that observational studies can induce stress by the sole presence of observers (McMann and Paterson, 2003), and hopefully institutional animal care and use committees will request ethical oversight for these studies.…”

Section: Discussionmentioning

confidence: 99%

Agreement of farm animal behaviour and welfare studies with the ARRIVE Essential 10

2023

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The inclusion of animals in research studies involves a great responsibility to ensure animal welfare within the relevant ethical and legal frameworks. This study aimed to review compliance with the ARRIVE Essential 10 requirements and the ethical oversight of animal behaviour and welfare studies in farm animals. Three journals and a total of 133 articles were reviewed for compliance with the ARRIVE Essential 10 items and criteria. Each article obtained a final score according to whether or not each criterion was met within each item. Likewise, ethical declaration in each article was recorded. Chi-square test and linear models were built to assess associations between the ethical statement presentation and the final ARRIVE Essential 10 score with the country, the species, and the journal. We found that 15% of the articles did not present an ethical statement. The journal with the highest impact factor and the countries of the Global South presented an ethical statement more frequently. Regarding the Essential 10, the item with the lowest agreement score was ‘Blinding’ and the one with the highest agreement was ‘Outcome Measures’. Also, significant differences were found between journals in terms of the Essential 10 score. Essential 10 provides relevant information that allows reviewers and readers to identify possible welfare risks and the validity of the results in animal welfare science publications.

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Effects of Capture, Observer Presence, and Captivity on Display Behavior in a Lizard

Cited by 7 publications

References 6 publications

Context Dependent Territory Defense: The Importance of Habitat Structure in Anolis sagrei

Context Dependent Territory Defense: The Importance of Habitat Structure in Anolis sagrei

Do Male Activity Level And Territory Quality Affect Female Association Time in The Brown Anole, Anolis sagrei?

Agreement of farm animal behaviour and welfare studies with the ARRIVE Essential 10

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