Journal of experimental zoology. Part A, Ecological and integrative physiology最新文献_第2页

Experimentally Elevated Levels of Testosterone Advance Daily Onset of Activity in Short-Day Housed Male House Sparrows (Passer domesticus). 实验性睾酮水平升高会提前短日饲养雄性家雀（Passer domesticus）的每日活动开始时间。

IF 1.9 3区生物学

Journal of experimental zoology. Part A, Ecological and integrative physiology Pub Date : 2024-10-07 DOI: 10.1002/jez.2871

Holland Galante, Samuel J Lane, Emily K Elderbrock, Geoffrey Brown, Timothy J Greives

{"title":"Experimentally Elevated Levels of Testosterone Advance Daily Onset of Activity in Short-Day Housed Male House Sparrows (Passer domesticus).","authors":"Holland Galante, Samuel J Lane, Emily K Elderbrock, Geoffrey Brown, Timothy J Greives","doi":"10.1002/jez.2871","DOIUrl":"https://doi.org/10.1002/jez.2871","url":null,"abstract":"Seasonal changes in sleep/wake cycles and behaviors related to reproduction often co-occur with seasonal fluctuations in sex hormones. Experimental studies have established that fluctuations in circulating testosterone mediate circadian rhythms. However, most studies are performed under constant lighting conditions and fail to investigate the effects of testosterone on the phenotypic output of circadian rhythms, that is, chronotype (daily activity patterns under light:dark cycles). Here, we experimentally elevated testosterone with implants during short nonbreeding daylengths in male house sparrows (Passer domesticus) to test if observed seasonal changes in chronotype are directly in response to photoperiod or to testosterone. We fitted individuals with accelerometers to track activity across treatment periods. Birds experienced three treatments periods: short day photoperiods before manipulation (SD), followed by testosterone implants while still on short days (SD + T). Implants were then removed. After a decrease in cloacal protuberance size, an indicator of low testosterone levels, birds were then photostimulated on long days (LD). Blood samples were collected at night, when testosterone peaks, to compare testosterone levels to daily onset/offset activity for experimental periods. Our results indicate that experimentally elevated testosterone under short nonbreeding photoperiods significantly advanced daily onset of activity and total daily activity relative to daylength. This suggests that testosterone, independent of photoperiod, is responsible for seasonal shifts in chronotypes and daily activity rhythms. These findings suggest that sex steroid hormone actions regulate timing of daily behaviors, likely coordinating expression of reproductive behaviors to appropriate times of the day.","PeriodicalId":15711,"journal":{"name":"Journal of experimental zoology. Part A, Ecological and integrative physiology","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2024-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142380977","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Early Oxidative Stress May Prevent a Red Ornament From Signaling Longevity. 早期氧化应激可能会阻止红色饰品发出长寿信号

IF 1.9 3区生物学

Journal of experimental zoology. Part A, Ecological and integrative physiology Pub Date : 2024-09-25 DOI: 10.1002/jez.2868

A A Romero-Haro, A Cantarero, C Alonso-Alvarez

{"title":"Early Oxidative Stress May Prevent a Red Ornament From Signaling Longevity.","authors":"A A Romero-Haro, A Cantarero, C Alonso-Alvarez","doi":"10.1002/jez.2868","DOIUrl":"https://doi.org/10.1002/jez.2868","url":null,"abstract":"Harsh early environmental conditions can exert delayed, long-lasting effects on phenotypes, including reproductive traits such as sexual signals. Indeed, adverse early conditions can accelerate development, increasing oxidative stress that may, in turn, impact adult sexual signals. Among signals, colorations produced by red ketocarotenoids seem to depend on mitochondrial functioning. Hence, they could reveal individual cell respiration efficiency. It has been hypothesized that these traits are unfalsifiable \"index\" signals of condition due to their deep connection to individual metabolism. Since mitochondrial dysfunction is frequently linked to aging, red ketocarotenoid-based ornaments could also be good signals of a critical fitness component: longevity. We tested this red color per longevity correlation in captive zebra finches. In addition, we experimentally decreased the synthesis of glutathione (a critical intracellular antioxidant) during the first days of the birds' life to resemble harsh early environmental conditions (e.g., undernutrition). Longevity was recorded until the death of the last bird (almost 9 years). Males, but not females, exhibiting a redder bill in early adulthood lived longer than males with paler bills, which agrees with some precedent studies. However, such bill redness-longevity connection was absent among males with inhibited glutathione synthesis. These findings may suggest that environmental factors can alter the reliability of red ketocarotenoid-based sexual signals, making them less unfalsifiable than believed.","PeriodicalId":15711,"journal":{"name":"Journal of experimental zoology. Part A, Ecological and integrative physiology","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2024-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142347950","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Variation in Plumage Coloration of Rosy-Faced Lovebirds (Agapornis roseicollis): Links to Sex, Age, Nutritional Condition, Viral Infection, and Habitat Urbanization. 玫瑰面爱情鸟（Agapornis roseicollis）羽毛颜色的变化：与性别、年龄、营养状况、病毒感染和栖息地城市化的联系。

IF 1.9 3区生物学

Journal of experimental zoology. Part A, Ecological and integrative physiology Pub Date : 2024-09-16 DOI: 10.1002/jez.2867

Kevin J McGraw, Reilly Hammond, Simona Kraberger, Arvind Varsani

{"title":"Variation in Plumage Coloration of Rosy-Faced Lovebirds (Agapornis roseicollis): Links to Sex, Age, Nutritional Condition, Viral Infection, and Habitat Urbanization.","authors":"Kevin J McGraw, Reilly Hammond, Simona Kraberger, Arvind Varsani","doi":"10.1002/jez.2867","DOIUrl":"https://doi.org/10.1002/jez.2867","url":null,"abstract":"Expression of vibrant plumage color plays important communication roles in many avian clades, ranging from penguins to passerines, but comparatively less is known about color signals in parrots (order Psittaciformes). We measured variation in coloration from three plumage patches (red face, blue rump, red tail) in an introduced population of rosy-faced lovebirds (Agapornis roseicollis) in Phoenix, Arizona, USA and examined color differences between the sexes and ages as well as relationships with several indices of quality, including disease presence/absence (infection with beak and feather disease, Circovirus parrot, and a polyomavirus, Gammapolyomavirus avis), nutritional state (e.g., blood glucose and ketone levels), and habitat type from which birds were captured. We found that different plumage colors were linked to different quality indices: (a) adults had redder faces than juveniles, and birds with brighter faces had lower glucose levels and were less likely to have polyomavirus; (b) males had bluer rumps than females; and (c) birds caught farther from the city had redder and darker tail feathers than those caught closer to the urban center. Our findings reveal diverse information underlying variation in the expression of these disparate, ornate feather traits in an introduced parrot species, and suggest that these condition-dependent and/or sexually dichromatic features may serve important intraspecific signaling roles (i.e., mediating rival competitions or mate choices).","PeriodicalId":15711,"journal":{"name":"Journal of experimental zoology. Part A, Ecological and integrative physiology","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2024-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142288962","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Mitigation of biochemical alterations in streptozotocin-induced gestational diabetes in rats through mesenchymal stem cells and olive leaf extract. 通过间充质干细胞和橄榄叶提取物缓解链脲佐菌素诱导的大鼠妊娠糖尿病的生化改变。

IF 1.9 3区生物学

Journal of experimental zoology. Part A, Ecological and integrative physiology Pub Date : 2024-09-04 DOI: 10.1002/jez.2862

Mervat A AbdRabou, Ahmed B M Mehany, Diaa Massoud, Ahmed Nabeeh, Aml M Asran, Mousa O Germoush, Aljohara M Al-Otaibi, Ahmed Atwa

{"title":"Mitigation of biochemical alterations in streptozotocin-induced gestational diabetes in rats through mesenchymal stem cells and olive leaf extract.","authors":"Mervat A AbdRabou, Ahmed B M Mehany, Diaa Massoud, Ahmed Nabeeh, Aml M Asran, Mousa O Germoush, Aljohara M Al-Otaibi, Ahmed Atwa","doi":"10.1002/jez.2862","DOIUrl":"https://doi.org/10.1002/jez.2862","url":null,"abstract":"Treatment with mesenchymal stem cells (MSCs) is a new promising therapeutic approach with substantial very auspicious potential. They have been shown to protect various played a role in protecting organs from damage. This current study aims to evaluate the impact of the treatment of olive leaf extract (OLE), bone marrow-derived (BM-MSCs), and their combination on hepatotoxicity in pregnant rats with diabetes.Methods: Animals were divided into five groups (10 pregnant rats each) as follows: control, GDM group, and OLE group (rats received streptozotocin (STZ) at a dose of 35 mg/kg body weight). GD + OLE set (pregnant rats were administered OLE at a dose of 200 mg extract/kg of body weight). GD + MSCs group (pregnant rats treated with MSCs). GD + OLE + MSCs group (pregnant rats were treated with both MSCs and OLE).Results: STZ induced significant changes in liver parameters, lipid profile, and oxidative stress. Treatment with OLE, BM-MSCs, and their combination significantly ameliorated STZ-induced liver damage and oxidative stress. STZ resulted in a significant change in liver parameters, lipid profile, and oxidative stress. OLE, BM-MSC, and combination have significantly improved STZ-induced deterioration in liver and improved oxidative stress.Conclusions: The findings demonstrate that OLE and BM-MSCs have beneficial effects in mitigating diabetes-related liver alterations. These outcomes showed that OLE and BM-MSC have beneficial effects in alleviating diabetes-related alterations in the liver.","PeriodicalId":15711,"journal":{"name":"Journal of experimental zoology. Part A, Ecological and integrative physiology","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2024-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142132923","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Tree Frogs Alter Their Behavioral Strategies While Landing On Vertical Perches. 树蛙在垂直栖木上着陆时改变行为策略

IF 1.9 3区生物学

Journal of experimental zoology. Part A, Ecological and integrative physiology Pub Date : 2024-09-02 DOI: 10.1002/jez.2864

Rui Zhou, Zhouyi Wang, Yi Song, Shuhao Liu, Zhendong Dai

{"title":"Tree Frogs Alter Their Behavioral Strategies While Landing On Vertical Perches.","authors":"Rui Zhou, Zhouyi Wang, Yi Song, Shuhao Liu, Zhendong Dai","doi":"10.1002/jez.2864","DOIUrl":"https://doi.org/10.1002/jez.2864","url":null,"abstract":"As an arboreal animal, tree frogs face diverse challenges when landing on perches, including variations in substrate shape, diameter, flexibility, and angular distribution, with potentially significant consequences for failed landings. Research on tree frog landing behavior on perches, especially concerning landing on vertical substrates, remains limited. This study investigated the landing strategies (forelimb, abdomen, and hindlimb) of tree frogs on vertical perches, considering perch diameter. Although all three strategies were observed across perches of different diameters, their frequencies differed. Forelimb landing was most common across all perch diameters, with its frequency increasing with perch diameter, while abdomen and hindlimb landing strategies were more prevalent on smaller diameter perches. During the process from take-off to landing, the body axis underwent some deviation owing to the asymmetric movement of the left and right limbs; however, these deviations did not significantly differ among landing strategies. Additionally, different landing strategies led to variations in the landing forces, with abdominal landings generating significantly higher impact forces than the other two strategies. These findings provide insights into the biomechanics and biological adaptations of tree frogs when landing on challenging substrates, such as leaves or branches.","PeriodicalId":15711,"journal":{"name":"Journal of experimental zoology. Part A, Ecological and integrative physiology","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2024-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142107985","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of melatonin supplementation upon parental care and nestling growth in arctic-breeding songbirds. 补充褪黑激素对北极繁殖鸣禽的父母照料和雏鸟成长的影响

IF 1.9 3区生物学

Journal of experimental zoology. Part A, Ecological and integrative physiology Pub Date : 2024-08-16 DOI: 10.1002/jez.2863

Keelee Pullum, Brett Hodinka, Zoe Ward, Greta Morrissette, Melanie M Richter, Kathleen E Hunt, Noah T Ashley

{"title":"Effect of melatonin supplementation upon parental care and nestling growth in arctic-breeding songbirds.","authors":"Keelee Pullum, Brett Hodinka, Zoe Ward, Greta Morrissette, Melanie M Richter, Kathleen E Hunt, Noah T Ashley","doi":"10.1002/jez.2863","DOIUrl":"https://doi.org/10.1002/jez.2863","url":null,"abstract":"Arctic-breeding birds exhibit around-the-clock activity, and these activity cycles are postulated to maximize reproductive success during the short breeding season characteristic of high-latitude regions. Two closely related species of arctic-breeding songbirds, Lapland longspurs (Calcarius lapponicus; ground-nesting) and snow buntings (Plectrophenax nivalis; cavity-nesting) exhibit extended activity cycles throughout the polar day (71° N) except for 4-5 h of daily quiescence. Ground-nesting Lapland longspurs experience higher levels of nest predation than cavity-nesting snow buntings, and this difference is reflected in elevated nest vigilance in male longspurs compared with snow buntings. In this study, we examined the effect of melatonin supplementation upon male parental care, corresponding measures of nestling growth, and ability to reduce activity (and increase sleep). A pharmacological dose of melatonin in captive snow buntings dampened the amplitude of activity rhythms over the polar day with no detectable phase-shifting compared with control-implanted birds. Melatonin treatment reduced nest visits and overall time spent on the nest by male snow buntings compared with controls. There was no significant increase in time spent by female snow buntings on the nest to compensate for this, and there was no significant effect on offspring growth rates. There were no effects of melatonin supplementation on longspur adults or offspring, suggesting behavioral insensitivity to exogenous melatonin treatment. These differences in sensitivity underscore the importance of nest defense in ground-nesting longspurs compared with cavity-nesting snow buntings, which participate minimally in nest defense.","PeriodicalId":15711,"journal":{"name":"Journal of experimental zoology. Part A, Ecological and integrative physiology","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2024-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141988048","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Molecular changes and physiological responses involved in migratory bird fuel management and stopover decisions. 候鸟燃料管理和中途停留决策所涉及的分子变化和生理反应。

IF 1.9 3区生物学

Journal of experimental zoology. Part A, Ecological and integrative physiology Pub Date : 2024-08-06 DOI: 10.1002/jez.2861

Anastasios Bounas, Artemis Talioura, Chrysoula Komini, Elisavet-Aspasia Toli, Konstantinos Sotiropoulos, Christos Barboutis

{"title":"Molecular changes and physiological responses involved in migratory bird fuel management and stopover decisions.","authors":"Anastasios Bounas, Artemis Talioura, Chrysoula Komini, Elisavet-Aspasia Toli, Konstantinos Sotiropoulos, Christos Barboutis","doi":"10.1002/jez.2861","DOIUrl":"https://doi.org/10.1002/jez.2861","url":null,"abstract":"Migratory birds undertake long journeys across continents to reach breeding habitats with abundant resources. These migrations are essential for their survival and are shaped by a complex interplay of physiological adaptations, behavioral cues, and gene expression patterns. Central to migration are stopovers, critical resting points where birds replenish energy stores before continuing their journey. In this study, we integrate physiological measurements, behavioral observations, and molecular data from temporarily caged migrating Garden Warblers (Sylvia borin) to gain insights into their stopover strategies and physiological adaptations after crossing the extended ecological barrier formed by the Sahara Desert and the Mediterranean Sea. Depleted individuals, marked by low body mass and flight muscle mass, showcased remarkable plasticity in recovering and rapidly rebuilding energy stores within a short 5-day stopover. Flight muscle mass increased during this period, highlighting a dynamic trade-off between muscle rebuilding and refuelling. Notably, birds prioritizing muscle rebuilding exhibited a trade-off with the downregulation of genes related to lipid transport and metabolism and at the same time showing evidence of skeletal muscle angiogenesis. Early arrivals were more motivated to depart and exhibited higher levels of physiological stress. Our study highlights the importance of understanding the adaptive responses of birds to changing environmental conditions along their migration routes.","PeriodicalId":15711,"journal":{"name":"Journal of experimental zoology. Part A, Ecological and integrative physiology","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2024-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141897605","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Sexual color ornamentation, microhabitat choice, and thermal physiology in the common wall lizard (Podarcis muralis) 普通壁蜥的性色装饰、微生境选择和热生理学。

IF 1.9 3区生物学

Journal of experimental zoology. Part A, Ecological and integrative physiology Pub Date : 2024-08-05 DOI: 10.1002/jez.2859

Maravillas Ruiz Miñano, Tobias Uller, Amanda K. Pettersen, Andreas Nord, Luisa J. Fitzpatrick, Geoffrey M. While

{"title":"Sexual color ornamentation, microhabitat choice, and thermal physiology in the common wall lizard (Podarcis muralis)","authors":"Maravillas Ruiz Miñano, Tobias Uller, Amanda K. Pettersen, Andreas Nord, Luisa J. Fitzpatrick, Geoffrey M. While","doi":"10.1002/jez.2859","DOIUrl":"10.1002/jez.2859","url":null,"abstract":"Common wall lizards (Podarcis muralis) in Italy show a striking variation in body coloration across the landscape, with highly exaggerated black and green colors in hot and dry climates and brown and white colors in cool and wet climates. Males are more intensely colored than females, and previous work has suggested that the maintenance of variation in coloration across the landscape reflects climatic effects on the strength of male–male competition, and through this sexual selection. However climatic effects on the intensity of male–male competition would need to be exceptionally strong to fully explain the geographic patterns of color variation. Thus, additional processes may contribute to the maintenance of color variation. Here we test the hypothesis that selection for green and black ornamentation in the context of male–male competition is opposed by selection against ornamentation because the genes involved in the regulation of coloration have pleiotropic effects on thermal physiology, such that ornamentation is selected against in cool climates. Field observations revealed no association between body coloration and microhabitat use or field active body temperatures. Consistent with these field data, lizards at the extreme ends of the phenotypic distribution for body coloration did not show any differences in critical minimum temperature, preferred body temperature, temperature-dependent metabolic rate, or evaporative water loss when tested in the laboratory. Combined, these results provide no evidence that genes that underlie sexual ornamentation are selected against in cool climate because of pleiotropic effects on thermal biology.","PeriodicalId":15711,"journal":{"name":"Journal of experimental zoology. Part A, Ecological and integrative physiology","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2024-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jez.2859","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141889430","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The effect of group size on sleep in a neotropical bat, Artibeus jamaicensis. 新热带蝙蝠 Artibeus jamaicensis 的群体大小对睡眠的影响。

IF 1.9 3区生物学

Journal of experimental zoology. Part A, Ecological and integrative physiology Pub Date : 2024-07-25 DOI: 10.1002/jez.2860

Alexis M Heckley, Christian D Harding, Rachel A Page, Barrett A Klein, Yossi Yovel, Clarice A Diebold, Hannah B Tilley

{"title":"The effect of group size on sleep in a neotropical bat, Artibeus jamaicensis.","authors":"Alexis M Heckley, Christian D Harding, Rachel A Page, Barrett A Klein, Yossi Yovel, Clarice A Diebold, Hannah B Tilley","doi":"10.1002/jez.2860","DOIUrl":"https://doi.org/10.1002/jez.2860","url":null,"abstract":"Sleep is associated with many costs, but is also important to survival, with a lack of sleep impairing cognitive function and increasing mortality. Sleeping in groups could alleviate sleep-associated costs, or could introduce new costs if social sleeping disrupts sleep. Working with the Jamaican fruit bat (Artibeus jamaicensis), we aimed to: (1) describe sleep architecture, (2) assess how sleeping in groups affects sleep, and (3) quantify total sleep time and identify rapid eye movement (REM) sleep using behavioral indicators that complement physiological evidence of sleep. Twenty-five adult bats were captured in Panama and recorded sleeping in an artificial roost enclosure. Three bats were fitted with an electromyograph and accelerometer and video recorded sleeping alone in controlled laboratory settings. The remaining 22 bats were assigned to differing social configurations (alone, dyad, triad, and tetrad) and video recorded sleeping in an outdoor flight cage. We found that sleep was highly variable among individuals (ranging from 2 h 53 min to 9 h 39 min over a 12-h period). Although we did not detect statistically significant effects and our sample size was limited, preliminary trends suggest that male bats may sleep longer than females, and individuals sleeping in groups may sleep longer than individuals sleeping alone. We also found a high correspondence between total sleep time quantified visually and quantified using actigraphy (with a 2-min immobility threshold) and identified physiological correlates of behaviorally-defined REM. These results serve as a starting point for future work on the ecology and evolution of sleep in bats and other wild mammals.","PeriodicalId":15711,"journal":{"name":"Journal of experimental zoology. Part A, Ecological and integrative physiology","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2024-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141759077","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

More sleep for behavioral ecologists. 行为生态学家睡得更香

IF 1.9 3区生物学

Journal of experimental zoology. Part A, Ecological and integrative physiology Pub Date : 2024-07-21 DOI: 10.1002/jez.2856

Daniela C Rößler, Barrett A Klein

{"title":"More sleep for behavioral ecologists.","authors":"Daniela C Rößler, Barrett A Klein","doi":"10.1002/jez.2856","DOIUrl":"https://doi.org/10.1002/jez.2856","url":null,"abstract":"From jellyfish to parrot fish and roundworms to homeotherms, all animals are thought to sleep. Despite its presumed universality, sleep is a poorly understood behavior, varying significantly in its expression across, and even within, animal lineages. There is still no consensus about the origin, architecture, ecology of sleep, or even its defining characters. The field of behavioral ecology has the potential to extend our knowledge of sleep behavior to nontraditional models and in ecologically relevant settings. Here, we highlight current efforts in diversifying the field to generate stronger synergies between historically human-focused sleep research and behavioral ecology. Our primary aim is for behavioral ecology to enhance sleep research by contributing crucial observations as well as by creating novel comparative and evolutionary frameworks. At the same time, sleep research can enhance behavioral ecology by exposing the relevance of sleep to wakeful behaviors. Nikolaas Tinbergen's four levels of analysis have served as a foundation for comprehensively addressing questions in behavior, and we introduce some Tinbergian approaches to examine the interplay between sleep and wake under ecologically meaningful conditions.","PeriodicalId":15711,"journal":{"name":"Journal of experimental zoology. Part A, Ecological and integrative physiology","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2024-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141734311","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0