Multiple morphophysiological responses of a tropical frog to urbanization conform to the pace-of-life syndrome.

IF 2.6 3区 环境科学与生态学 Q2 BIODIVERSITY CONSERVATION
Conservation Physiology Pub Date : 2024-01-27 eCollection Date: 2024-01-01 DOI:10.1093/conphys/coad106
Lilian Franco-Belussi, José Gonçalves de Oliveira Júnior, Javier Goldberg, Classius De Oliveira, Carlos E Fernandes, Diogo B Provete
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引用次数: 0

Abstract

The Pace-of-Life syndrome proposes that behavioural, physiological and immune characteristics vary along a slow-fast gradient. Urbanization poses several physiological challenges to organisms. However, little is known about how the health status of frogs is affected by urbanization in the Tropics, which have a faster and more recent urbanization than the northern hemisphere. Here, we analysed a suite of physiological variables that reflect whole organism health, reproduction, metabolic and circulatory physiology and leukocyte responses in Leptodactylus podicipinus. Specifically, we tested how leukocyte profile, erythrocyte morphometrics and germ cell density, as well as somatic indices and erythrocyte nuclear abnormalities differ throughout the adult life span between urban and rural populations. We used Phenotypic Trajectory Analysis to test the effect of age and site on each of the multivariate data sets; and a Generalised Linear Model to test the effect of site and age on nuclear abnormalities. Somatic indices, erythrocyte nuclear abnormalities, erythrocyte morphometrics and leukocyte profile differed between populations, but less so for germ cell density. We found a large effect of site on nuclear abnormalities, with urban frogs having twice as many abnormalities as rural frogs. Our results suggest that urban frogs have a faster pace of life, but the response of phenotypic compartments is not fully concerted.

一种热带青蛙对城市化的多种形态生理反应符合生活节奏综合征。
生活节奏综合症提出,行为、生理和免疫特征沿着 "慢-快 "梯度变化。城市化给生物带来了多种生理挑战。然而,与北半球相比,热带地区的城市化速度更快、时间更短,人们对城市化如何影响青蛙的健康状况知之甚少。在这里,我们分析了一系列生理变量,这些变量反映了Leptodactylus podicipinus的整个机体健康、繁殖、新陈代谢和循环生理以及白细胞反应。具体来说,我们测试了城市和农村种群的白细胞轮廓、红细胞形态计量学和生殖细胞密度,以及体细胞指数和红细胞核异常在整个成年期有何不同。我们使用表型轨迹分析法(Phenotypic Trajectory Analysis)检验了年龄和地点对每组多元数据的影响;并使用广义线性模型(Generalised Linear Model)检验了地点和年龄对核异常的影响。不同种群之间的体细胞指数、红细胞核异常、红细胞形态计量学和白细胞特征存在差异,但生殖细胞密度的差异较小。我们发现地点对细胞核异常的影响很大,城市蛙的异常数量是农村蛙的两倍。我们的研究结果表明,城市青蛙的生活节奏较快,但表型区的反应并不完全一致。
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来源期刊
Conservation Physiology
Conservation Physiology Environmental Science-Management, Monitoring, Policy and Law
CiteScore
5.10
自引率
3.70%
发文量
71
审稿时长
11 weeks
期刊介绍: Conservation Physiology is an online only, fully open access journal published on behalf of the Society for Experimental Biology. Biodiversity across the globe faces a growing number of threats associated with human activities. Conservation Physiology will publish research on all taxa (microbes, plants and animals) focused on understanding and predicting how organisms, populations, ecosystems and natural resources respond to environmental change and stressors. Physiology is considered in the broadest possible terms to include functional and mechanistic responses at all scales. We also welcome research towards developing and refining strategies to rebuild populations, restore ecosystems, inform conservation policy, and manage living resources. We define conservation physiology broadly and encourage potential authors to contact the editorial team if they have any questions regarding the remit of the journal.
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