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Kynoch C, Paladino FV, Spotila JR, Santidrián Tomillo P. Variability in thermal tolerance of clutches from different mothers indicates adaptation potential to climate warming in sea turtles. GLOBAL CHANGE BIOLOGY 2024; 30:e17447. [PMID: 39098999 DOI: 10.1111/gcb.17447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Revised: 06/19/2024] [Accepted: 07/02/2024] [Indexed: 08/06/2024]
Abstract
The current climate warming is a challenge to biodiversity that could surpass the adaptation capacity of some species. Hence, understanding the means by which populations undergo an increase in their thermal tolerance is critical to assess how they could adapt to climate warming. Specifically, sea turtle populations could respond to increasing temperatures by (1) colonizing new nesting areas, (2) nesting during cooler times of the year, and/or (3) by increasing their thermal tolerance. Differences in thermal tolerance of clutches laid by different females would indicate that populations have the potential to adapt by natural selection. Here, we used exhaustive information on nest temperatures and hatching success of leatherback turtle (Dermochelys coriacea) clutches over 14 years to assess the occurrence of individual variability in thermal tolerance among females. We found an effect of temperature, year, and the interaction between female identity and nest temperature on hatching success, indicating that clutches laid by different females exhibited different levels of vulnerability to high temperatures. If thermal tolerance is a heritable trait, individuals with higher thermal tolerances could have greater chances of passing their genes to following generations, increasing their frequency in the population. However, the high rate of failure of clutches at temperatures above 32°C suggests that leatherback turtles are already experiencing extreme heat stress. A proper understanding of mechanisms of adaptation in populations to counteract changes in climate could greatly contribute to future conservation of endangered populations in a rapidly changing world.
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Affiliation(s)
- Camille Kynoch
- Department of Earth, Ocean and Atmospheric Science, Florida State University, Tallahassee, Florida, USA
| | - Frank V Paladino
- The Leatherback Trust, Goldring-Gund Marine Biology Station, Playa Grande, Costa Rica
- Department of Biology, Purdue University Fort Wayne, Fort Wayne, Indiana, USA
| | - James R Spotila
- The Leatherback Trust, Goldring-Gund Marine Biology Station, Playa Grande, Costa Rica
- Department of Biodiversity, Earth and Environmental Science, Drexel University, Philadelphia, Pennsylvania, USA
| | - Pilar Santidrián Tomillo
- Centre Oceanogràfic de les Balears, Instituto Español de Oceanografía (IEO, CSIC), Palma de Mallorca, Spain
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2
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Labastida-Estrada E, González-Cortés L, Karam-Martínez SG, Montoya-Márquez JA, Zúñiga-Marroquín T, Becerril-Morales F, Islas-Villanueva V. Influence of incubation temperature, maternal effects, and paternity on quality of olive ridley hatchlings (Lepidochelys olivacea) from a mass-nesting beach in the Mexican Pacific. JOURNAL OF EXPERIMENTAL ZOOLOGY. PART A, ECOLOGICAL AND INTEGRATIVE PHYSIOLOGY 2024; 341:563-577. [PMID: 38470019 DOI: 10.1002/jez.2804] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Revised: 02/13/2024] [Accepted: 02/15/2024] [Indexed: 03/13/2024]
Abstract
Future climate change scenarios project that the increase in surface temperatures will affect ocean temperatures, inducing shifts in marine biodiversity. Sea turtles are species that are particularly vulnerable to the effects of climate change because temperature is a factor that influences embryonic development. We collected clutches of olive ridley turtles from a mass-nesting beach in the Mexican Pacific, which were incubated in ex situ conditions. When the hatchlings emerged, we measured the body condition index-which evaluates the weight-length relationship-and swim thrust, both were considered traits associated with fitness, termed "fitness proxies," and evaluated the effects of incubation temperature, maternal effects, and paternity on these fitness proxies. The body condition index was correlated positively and significantly with the arribada month and temperature during the last third of the incubation period but showed an inverse relationship with the maternal effect. While swim thrust was positively correlated with the maternal effect and the arribada month, there was an inverse relationship with incubation temperature during the first third of the period. Paternity, whether single or multiple, did not have a significant effect on either fitness proxies; however, it may have effects on the average fitness of a population of hatchlings. These results underscore the need to expand research on the sublethal effects of high incubation temperatures on the adaptation and survival of sea turtles, particularly in scenarios of rapid climate change.
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Affiliation(s)
- Elizabeth Labastida-Estrada
- División de Estudios de Posgrado, Programa de Maestría en Ciencias: Ecología Marina, Universidad del Mar campus Puerto Ángel. Ciudad Universitaria, San Pedro Pochutla, Oaxaca, México
| | - Liliana González-Cortés
- División de Estudios de Posgrado, Programa de Maestría en Ciencias: Ecología Marina, Universidad del Mar campus Puerto Ángel. Ciudad Universitaria, San Pedro Pochutla, Oaxaca, México
| | - Samantha G Karam-Martínez
- Instituto de Recursos, Universidad del Mar campus Puerto Ángel. Ciudad Universitaria, San Pedro Pochutla, Oaxaca, México
| | - José Alberto Montoya-Márquez
- Instituto de Recursos, Universidad del Mar campus Puerto Ángel. Ciudad Universitaria, San Pedro Pochutla, Oaxaca, México
| | - Tania Zúñiga-Marroquín
- Instituto de Agroingeniería, Universidad del Papaloapan campus Loma Bonita, Avenida Ferrocarril, Ciudad Universitaria, Loma Bonita, Oaxaca, México
| | - Felipe Becerril-Morales
- Instituto de Agroingeniería, Universidad del Papaloapan campus Loma Bonita, Avenida Ferrocarril, Ciudad Universitaria, Loma Bonita, Oaxaca, México
| | - Valentina Islas-Villanueva
- Instituto de Genética, CONAHCYT-Universidad del Mar campus Puerto Ángel. Ciudad Universitaria, San Pedro Pochutla, Oaxaca, México
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3
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Robledo-Avila LA, Phillips-Farfán BV, García-Bucio IY, Montes-Sánchez S, Herrera-Vargas MA, Contreras-Garduño J, Núñez-Anita RE, Martínez-Lendech N, Meléndez-Herrera E. Incubation in shaded hatcheries biases sex-determination but preserves Lepidochelys olivacea hatchling physiology. MARINE ENVIRONMENTAL RESEARCH 2023; 192:106244. [PMID: 37924794 DOI: 10.1016/j.marenvres.2023.106244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Revised: 09/29/2023] [Accepted: 10/24/2023] [Indexed: 11/06/2023]
Abstract
Some studies have associated ex situ conservation with cerebral and gonadal developmental delay, as well as decreased motor performance in Lepidochelys olivacea offspring. Ex situ management is also related to a more mature spleen and a differential leukocyte count in newly emerged Lepidochelys olivacea hatchlings. The physiological relevance of a more mature spleen is unknown in sea turtles, but studies in birds suggest an increased immune response. Because egg relocation to hatcheries is a common conservation practice, it is imperative to know its impact on hatchling physiology. Herein, plasma activity of superoxide dismutase, alkaline phosphatase and the alternative complement pathway, as well as total antioxidant capacity and hydrogen peroxide concentrations were quantified in hatchlings from in situ and ex situ nests under basal conditions at nest emergence. Toll-like receptor 4 (tlr4), heat shock proteins (hsp) 70 and hsp90 expression were quantified in the spleen and liver of the hatchlings. Hepatocyte density and nuclear area were quantified in histological sections of the liver and all turtles were sexed by histological sectioning of the gonads. Total antioxidant capacity and hydrogen peroxide concentrations in plasma were lower in turtles from ex situ nests, while tlr4 and hsp70 mRNA expression was higher in the spleen but not in the liver. Ex situ incubation produced 98% male hatchlings, whereas in situ incubation produced 100% females. There were no other differences in the attributes sampled between hatchlings emerging from ex situ and in situ treatments. The results suggest that ex situ relocated turtles may be less prone to oxidative stress than in situ incubated hatchlings and could have more mature splenic function. Together, the data suggest that ex situ relocation to shaded hatcheries biased sex determination but preserved the general physiological condition of sea turtle hatchlings.
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Affiliation(s)
- Liliana Areli Robledo-Avila
- Instituto de Investigaciones sobre Recursos Naturales, Universidad Michoacana de San Nicolás de Hidalgo, Av. San Juanito Itzícuaro s/n, Colonia Nueva Esperanza, C.P. 58337, Morelia, Michoacán, Mexico.
| | - Bryan Víctor Phillips-Farfán
- Laboratorio de Nutrición Experimental, Instituto Nacional de Pediatría, Insurgentes Sur 3700, Letra C, Alcaldía Coyoacán, C.P. 04530, Cd. de México, Mexico.
| | - Irma Yunuen García-Bucio
- Instituto de Investigaciones sobre Recursos Naturales, Universidad Michoacana de San Nicolás de Hidalgo, Av. San Juanito Itzícuaro s/n, Colonia Nueva Esperanza, C.P. 58337, Morelia, Michoacán, Mexico.
| | - Shannen Montes-Sánchez
- Instituto de Investigaciones sobre Recursos Naturales, Universidad Michoacana de San Nicolás de Hidalgo, Av. San Juanito Itzícuaro s/n, Colonia Nueva Esperanza, C.P. 58337, Morelia, Michoacán, Mexico.
| | - Ma Antonia Herrera-Vargas
- Instituto de Investigaciones sobre Recursos Naturales, Universidad Michoacana de San Nicolás de Hidalgo, Av. San Juanito Itzícuaro s/n, Colonia Nueva Esperanza, C.P. 58337, Morelia, Michoacán, Mexico.
| | - Jorge Contreras-Garduño
- Escuela Nacional de Estudios Superiores, Unidad Morelia, Universidad Nacional Autónoma de México, Antigua Carretera a Pátzcuaro 8701, Ex-Hacienda de San José de la Huerta, 58190, Morelia, Michoacán, Mexico.
| | - Rosa Elvira Núñez-Anita
- Facultad de Medicina Veterinaria y Zootecnia, Universidad Michoacana de San Nicolás de Hidalgo, 58130, Morelia, Michoacán, Mexico.
| | - Norma Martínez-Lendech
- Escuela Nacional de Estudios Superiores, Unidad Morelia, Universidad Nacional Autónoma de México, Antigua Carretera a Pátzcuaro 8701, Ex-Hacienda de San José de la Huerta, 58190, Morelia, Michoacán, Mexico.
| | - Esperanza Meléndez-Herrera
- Instituto de Investigaciones sobre Recursos Naturales, Universidad Michoacana de San Nicolás de Hidalgo, Av. San Juanito Itzícuaro s/n, Colonia Nueva Esperanza, C.P. 58337, Morelia, Michoacán, Mexico.
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4
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Lipshutz SE, Howell CR, Buechlein AM, Rusch DB, Rosvall KA, Derryberry EP. How thermal challenges change gene regulation in the songbird brain and gonad: implications for sexual selection in our changing world. Mol Ecol 2022; 31:3613-3626. [PMID: 35567363 DOI: 10.1111/mec.16506] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Revised: 04/15/2022] [Accepted: 05/04/2022] [Indexed: 11/29/2022]
Abstract
In a rapidly warming world, exposure to high temperatures may impact fitness, but the gene regulatory mechanisms that link sublethal heat to sexually selected traits are not well understood, particularly in endothermic animals. Our experiment used zebra finches (Taeniopygia guttata), songbirds that experience extreme temperature fluctuations in their native Australia. We exposed captive males to an acute thermal challenge (43°C) compared with thermoneutral (35°C) and lower (27°C) temperatures. We found significantly more heat dissipation behaviors at 43°C, a temperature previously shown to reduce song production and fertility, and more heat retention behaviors at 27°C. Next, we characterized transcriptomic responses in tissues important for mating effort - the posterior telencephalon, for its role in song production, and the testis, for its role in fertility and hormone production. Differential expression of hundreds of genes in the testes, but few in the brain, suggest the brain is less responsive to extreme temperatures. Nevertheless, gene network analyses revealed that expression related to dopaminergic signaling in the brain co-varied with heat dissipation behaviors, providing a mechanism by which temporary thermal challenges may alter motivational circuits for song production. In both brain and testis, we observed correlations between thermally sensitive gene networks and individual differences in thermoregulatory behavior. Although we cannot directly relate these gene regulatory changes to mating success, our results suggest that individual variation in response to thermal challenges could impact sexually selected traits in a warming world.
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Affiliation(s)
- Sara E Lipshutz
- Department of Biology, Indiana University, Bloomington, IN, USA.,Department of Biology, Loyola University Chicago, Chicago, IL, USA
| | - Clara R Howell
- Department of Ecology and Evolutionary Biology, University of Tennessee, Knoxville, TN, USA.,Department of Biology, Duke University, Durham, NC, USA
| | - Aaron M Buechlein
- Center for Genomics and Bioinformatics, Indiana University, Bloomington, IN, USA
| | - Douglas B Rusch
- Center for Genomics and Bioinformatics, Indiana University, Bloomington, IN, USA
| | | | - Elizabeth P Derryberry
- Department of Ecology and Evolutionary Biology, University of Tennessee, Knoxville, TN, USA
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5
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Hernández-Fernández J, Pinzón Velasco AM, López Barrera EA, Rodríguez Becerra MDP, Villanueva-Cañas JL, Alba MM, Mariño Ramírez L. De novo assembly and functional annotation of blood transcriptome of loggerhead turtle, and in silico characterization of peroxiredoxins and thioredoxins. PeerJ 2021; 9:e12395. [PMID: 34820176 PMCID: PMC8606161 DOI: 10.7717/peerj.12395] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Accepted: 10/06/2021] [Indexed: 12/21/2022] Open
Abstract
The aim of this study was to generate and analyze the atlas of the loggerhead turtle blood transcriptome by RNA-seq, as well as identify and characterize thioredoxin (Tnxs) and peroxiredoxin (Prdxs) antioxidant enzymes of the greatest interest in the control of peroxide levels and other biological functions. The transcriptome of loggerhead turtle was sequenced using the Illumina Hiseq 2000 platform and de novo assembly was performed using the Trinity pipeline. The assembly comprised 515,597 contigs with an N50 of 2,631 bp. Contigs were analyzed with CD-Hit obtaining 374,545 unigenes, of which 165,676 had ORFs encoding putative proteins longer than 100 amino acids. A total of 52,147 (31.5%) of these transcripts had significant homology matches in at least one of the five databases used. From the enrichment of GO terms, 180 proteins with antioxidant activity were identified, among these 28 Prdxs and 50 putative Tnxs. The putative proteins of loggerhead turtles encoded by the genes Prdx1, Prdx3, Prdx5, Prdx6, Txn and Txnip were predicted and characterized in silico. When comparing Prdxs and Txns of loggerhead turtle with homologous human proteins, they showed 18 (9%), 52 (18%) 94 (43%), 36 (16%), 35 (33%) and 74 (19%) amino acid mutations respectively. However, they showed high conservation in active sites and structural motifs (98%), with few specific modifications. Of these, Prdx1, Prdx3, Prdx5, Prdx6, Txn and Txnip presented 0, 25, 18, three, six and two deleterious changes. This study provides a high quality blood transcriptome and functional annotation of loggerhead sea turtles.
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Affiliation(s)
- Javier Hernández-Fernández
- Department of Natural and Environmental Sciences, Faculty of Science and Engineering, Genetics, Molecular Biology and Bioinformatic Research Group-GENBIMOL, Universidad Jorge Tadeo Lozano, Bogotá, D.C., Colombia.,Faculty of Sciences, Department of Biology, Pontificia Universidad Javeriana, Bogotá, D.C., Colombia
| | | | - Ellie Anne López Barrera
- Institute of Environmental Studies and Services. IDEASA Research Group-IDEASA, Sergio Arboleda University, Bogotá, D.C., Colombia
| | - María Del Pilar Rodríguez Becerra
- Department of Natural and Environmental Sciences, Faculty of Science and Engineering, Genetics, Molecular Biology and Bioinformatic Research Group-GENBIMOL, Universidad Jorge Tadeo Lozano, Bogotá, D.C., Colombia
| | | | - M Mar Alba
- Evolutionary Genomics Group, Research Program on Biomedical Informatics (GRIB), Hospital del Mar Research Institute (IMIM), Universitat Pompeu Fabra, Barcelona, Spain.,Catalan Institution for Research and Advanced Studies (ICREA), Barcelona, Spain
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6
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Tissue and Temperature-Specific RNA-Seq Analysis Reveals Genomic Versatility and Adaptive Potential in Wild Sea Turtle Hatchlings ( Caretta caretta). Animals (Basel) 2021; 11:ani11113013. [PMID: 34827746 PMCID: PMC8614379 DOI: 10.3390/ani11113013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 09/24/2021] [Accepted: 10/18/2021] [Indexed: 01/05/2023] Open
Abstract
Simple Summary Digital transcriptomics is rapidly emerging as a powerful new technology for modelling the environmental dynamics of the adaptive landscape in diverse lineages. This is particularly valuable in taxa such as turtles and tortoises (order Testudines) which contain a large fraction of endangered species at risk due to anthropogenic impacts on the environment, including pollution, overharvest, habitat degradation, and climate change. Sea turtles (family Cheloniidae) in particular invite a genomics-enabled approach to investigating their remarkable portfolio of adaptive evolution. Our de novo transcriptome assemblies and measurements of tissue- and temperature- specific global gene expression in the loggerhead sea turtle (Caretta caretta) reveal the genomic basis for potential resiliency in this endangered flagship species, and are crucial to future management and conservation strategies with attention to changing climates. We summarize the interactions among differentially expressed genes by producing network visualizations, and highlight the shared biological pathways related to development, migration, immunity, and longevity reported in the avian and reptilian literature. Our original results for loggerhead sea turtles provide a large, new comparative genomic resource for the investigation of genotype–phenotype relationships in amniotes. Abstract Background: Digital transcriptomics is rapidly emerging as a powerful new technology for modelling the environmental dynamics of the adaptive landscape in diverse lineages. This is particularly valuable in taxa such as turtles and tortoises (order Testudines) which contain a large fraction of endangered species at risk due to anthropogenic impacts on the environment, including pollution, overharvest, habitat degradation, and climate change. Sea turtles (family Cheloniidae) in particular invite a genomics-enabled approach to investigating their remarkable portfolio of adaptive evolution. The sex of the endangered loggerhead sea turtle (Caretta caretta) is subject to temperature-dependent sex determination (TSD), a mechanism by which exposure to temperatures during embryonic development irreversibly determines sex. Higher temperatures produce mainly female turtles and lower temperatures produce mainly male turtles. Incubation temperature can have long term effects on the immunity, migratory ability, and ultimately longevity of hatchlings. We perform RNA-seq differential expression analysis to investigate tissue- and temperature-specific gene expression within brain (n = 7) and gonadal (n = 4) tissue of male and female loggerhead hatchlings. Results: We assemble tissue- and temperature-specific transcriptomes and identify differentially expressed genes relevant to sexual development and life history traits of broad adaptive interest to turtles and other amniotic species. We summarize interactions among differentially expressed genes by producing network visualizations, and highlight shared biological pathways related to migration, immunity, and longevity reported in the avian and reptile literature. Conclusions: The measurement of tissue- and temperature-specific global gene expression of an endangered, flagship species such as the loggerhead sea turtle (Caretta caretta) reveals the genomic basis for potential resiliency and is crucial to future management and conservation strategies with attention to changing climates. Brain and gonadal tissue collected from experimentally reared loggerhead male and female hatchlings comprise an exceedingly rare dataset that permits the identification of genes enriched in functions related to sexual development, immunity, longevity, and migratory behavior and will serve as a large, new genomic resource for the investigation of genotype–phenotype relationships in amniotes.
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Li S, Li J, Chen W, Xu Z, Xie L, Zhang Y. Effects of Simulated Heat Wave on Oxidative Physiology and Immunity in Asian Yellow Pond Turtle (Mauremys mutica). Front Ecol Evol 2021. [DOI: 10.3389/fevo.2021.704105] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Global warming has led to an increase in the frequency, duration, and intensity of heat waves in the summer, which can cause frequent and acute heat stress on ectotherms. Thus, determining how ectothermic animals respond to heat waves has been attracting growing interest among ecologists. However, the physiological and biochemical responses to heat waves in reptiles, especially aquatic reptiles, are still poorly understood. The current study investigated the oxidant physiology, immunity, and expression levels of heat shock proteins (HSP) mRNA after exposure to a simulated heat wave (1 week, 35 ± 4°C), followed by a recovery period (1 week, 28 ± 4°C) in juvenile Asian yellow pond turtle (Mauremys mutica), a widely farmed aquatic turtle in East Asia. The contents of malondialdehyde (MDA) in the liver and muscle were not significantly affected by the heat wave or recovery. Of all antioxidant enzymes, only the activity of glutathione peroxidase (GSH-Px) in muscles increased after heat wave, while the total superoxide dismutase (T-SOD), catalase activity (CAT), and total antioxidant capacity (T-AOC) did not change during the study. The organo-somatic index for the liver and spleen of M. mutica decreased after the heat wave but increased to the initial level after recovery. In contrast, plasma lysozyme activity and serum complement C4 levels increased after the heat wave, returning to the control level after recovery. In addition, heat waves did not alter the relative expression of HSP60, HSP70, and HSP90 mRNA in the liver. Eventually, heat wave slightly increased the IBR/n index. Therefore, our results suggested that heat waves did not lead to oxidative damage to lipids in M. mutica, but deleteriously affected the turtles’ immune organs. Meanwhile, the constitutive levels of most antioxidative enzyme activities, HSPs and enhanced blood immune functions might protect the turtles from the threat of heat waves under the current climate scenarios.
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8
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Jin W, Li Z, Ran F, Huang S, Huo K, Li J, Han Q, Wang G, Wang Z, Jian S, Li K, Li C. Transcriptome analysis provides insights into copper toxicology in piebald naked carp (Gymnocypris eckloni). BMC Genomics 2021; 22:416. [PMID: 34090338 PMCID: PMC8178853 DOI: 10.1186/s12864-021-07673-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Accepted: 05/05/2021] [Indexed: 01/11/2023] Open
Abstract
Background Copper was used for many years in aquaculture operations as an effective algaecide or a parasite treatment of fish. It is an essential nutrient with numerous functions in organisms, but is toxic at high concentrations. However, the toxicity of copper to fish remains unclear. In this study, we used the piebald naked carp, Gymnocypris eckloni, as a model. RNA-seq data from different tissues, including gills, kidney, and liver, were used to investigate the underlying mechanism of copper toxicology in G. eckloni. Results We compared the transcriptomes from different tissues with different time durations of copper ion treatment. After 72 h copper ion treatment, the number of genes with different expression in gills and liver changed dramatically, but not in kidneys. In KEGG functional enrichment, the pattern of differentially expressed genes (DEGs) was also similar in the gills and liver. The most enriched pathway of DEGs was “Ribosome” in both tissues. Furthermore, we analyzed the expression levels of genes involved in oxidative stress response and protein synthesis using qPCR and RNA-seq data. Our results showed that several genes involved in oxidative stress response were up-regulated both in gills and liver. Up-regulation of these genes indicated that copper treatment caused oxidative stress, which is likely to result in ribosome damage. In addition, our results showed that the expression of Eef1b2, a transcription elongation factor, was decreased in the liver under oxidative stress, and the expression of translation initiation factors Eif4ebp1 and eIF2α, and elongation factor eEF2 was up-regulated. These results supported the idea that oxidative stress inhibits protein synthesis in cells. Conclusions Our results indicate that copper exposure caused different responses in different tissues, since the gene expression patterns changed substantially either in the gills or liver, while the effect on the kidney was relatively weak. Furthermore, our results indicated that the expression pattern of the genes involved in the ribosome, which is a complex molecular machine orchestrating protein synthesis in the cell, together with translation initiation factor and elongation factors, were affected by copper exposure both in the gills and liver of piebald naked carp. This result leads us to speculate that the downregulation of global protein synthesis is an acute response strategy of fish to metal-induced oxidative stress. Moreover, we speculate that this strategy not only exists in the selective translation of proteins but also exists in the specific translation of functional proteins in tissues and cells. Supplementary Information The online version contains supplementary material available at 10.1186/s12864-021-07673-4.
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Affiliation(s)
- Wenjie Jin
- College of Eco-Environmental Engineering, Qinghai University, Xining, 810016, China.,State Key Laboratory of Plateau Ecology and Agriculture, Qinghai University, No. 521 Ningda Road, Chengbei District, Xining, 810016, China
| | - Zixuan Li
- College of Eco-Environmental Engineering, Qinghai University, Xining, 810016, China
| | - Fengxia Ran
- College of Eco-Environmental Engineering, Qinghai University, Xining, 810016, China
| | - Shen Huang
- College of Eco-Environmental Engineering, Qinghai University, Xining, 810016, China
| | - Kefan Huo
- College of Eco-Environmental Engineering, Qinghai University, Xining, 810016, China
| | - Jianjuan Li
- College of Eco-Environmental Engineering, Qinghai University, Xining, 810016, China
| | - Qingshuo Han
- College of Eco-Environmental Engineering, Qinghai University, Xining, 810016, China
| | - Guojie Wang
- Fisheries Environmental Monitoring Station, Xining, 810016, China
| | - Zhenji Wang
- Fisheries Environmental Monitoring Station, Xining, 810016, China
| | - Shenlong Jian
- Fisheries Environmental Monitoring Station, Xining, 810016, China
| | - Kemao Li
- Fisheries Environmental Monitoring Station, Xining, 810016, China
| | - Changzhong Li
- College of Eco-Environmental Engineering, Qinghai University, Xining, 810016, China. .,State Key Laboratory of Plateau Ecology and Agriculture, Qinghai University, No. 521 Ningda Road, Chengbei District, Xining, 810016, China.
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9
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Gaviria-Hernández J, Páez VP, Ramírez DM, Ceballos CP. Embryo Development and Sex Ratios in the Red-Footed Tortoise (Chelonoidis carbonarius) at Masculinizing Temperatures. CHELONIAN CONSERVATION AND BIOLOGY 2021. [DOI: 10.2744/ccb-1441.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Juliana Gaviria-Hernández
- Grupo GAMMA, Escuela de Medicina Veterinaria, Facultad de Ciencias Agrarias, Universidad de Antioquia, Calle 70 N° 52-21, Medellín, Colombia [; ]
| | - Vivian P. Páez
- Grupo Herpetológico de Antioquia, Instituto de Biología, Universidad de Antioquia, Calle 70 N° 52-21, Medellín, Colombia []
| | - Diber M. Ramírez
- Centro de Atención y Valoración del Área Metropolitana del Valle de Aburrá, Medellín, Colombia []
| | - Claudia P. Ceballos
- Grupo GAMMA, Escuela de Medicina Veterinaria, Facultad de Ciencias Agrarias, Universidad de Antioquia, Calle 70 N° 52-21, Medellín, Colombia [; ]
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10
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Beltrán I, Herculano-Houzel S, Sinervo B, Whiting MJ. Are ectotherm brains vulnerable to global warming? Trends Ecol Evol 2021; 36:691-699. [PMID: 34016477 DOI: 10.1016/j.tree.2021.04.009] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Revised: 04/19/2021] [Accepted: 04/21/2021] [Indexed: 12/28/2022]
Abstract
Elevated temperatures during development affect a wide range of traits in ectotherms. Less well understood is the impact of global warming on brain development, which has only rarely been studied experimentally. Here, we evaluate current progress in the field and search for common response patterns among ectotherm groups. Evidence suggests that temperature may have a positive effect on neuronal activity and growth in developing brains, but only up to a threshold, above which temperature is detrimental to neuron development. These responses appear to be taxon dependent but this assumption may be due to a paucity of data for some taxonomic groups. We provide a framework with which to advance this highly promising field in the future.
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Affiliation(s)
- Iván Beltrán
- Department of Biological Sciences, Macquarie University, Sydney, NSW, Australia.
| | - Suzana Herculano-Houzel
- Department of Psychology, Vanderbilt University, Nashville, TN, USA; Department of Biological Sciences, Vanderbilt University, Nashville, TN, USA; Vanderbilt Brain Institute, Vanderbilt University, Nashville, TN, USA
| | - Barry Sinervo
- Department of Ecology and Evolutionary Biology, University of California Santa Cruz, Santa Cruz, CA, USA
| | - Martin J Whiting
- Department of Biological Sciences, Macquarie University, Sydney, NSW, Australia
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11
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Banerjee SM, Stoll JA, Allen CD, Lynch JM, Harris HS, Kenyon L, Connon RE, Sterling EJ, Naro-Maciel E, McFadden K, Lamont MM, Benge J, Fernandez NB, Seminoff JA, Benson SR, Lewison RL, Eguchi T, Summers TM, Hapdei JR, Rice MR, Martin S, Jones TT, Dutton PH, Balazs GH, Komoroske LM. Species and population specific gene expression in blood transcriptomes of marine turtles. BMC Genomics 2021; 22:346. [PMID: 33985425 PMCID: PMC8117300 DOI: 10.1186/s12864-021-07656-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Accepted: 04/23/2021] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Transcriptomic data has demonstrated utility to advance the study of physiological diversity and organisms' responses to environmental stressors. However, a lack of genomic resources and challenges associated with collecting high-quality RNA can limit its application for many wild populations. Minimally invasive blood sampling combined with de novo transcriptomic approaches has great potential to alleviate these barriers. Here, we advance these goals for marine turtles by generating high quality de novo blood transcriptome assemblies to characterize functional diversity and compare global transcriptional profiles between tissues, species, and foraging aggregations. RESULTS We generated high quality blood transcriptome assemblies for hawksbill (Eretmochelys imbricata), loggerhead (Caretta caretta), green (Chelonia mydas), and leatherback (Dermochelys coriacea) turtles. The functional diversity in assembled blood transcriptomes was comparable to those from more traditionally sampled tissues. A total of 31.3% of orthogroups identified were present in all four species, representing a core set of conserved genes expressed in blood and shared across marine turtle species. We observed strong species-specific expression of these genes, as well as distinct transcriptomic profiles between green turtle foraging aggregations that inhabit areas of greater or lesser anthropogenic disturbance. CONCLUSIONS Obtaining global gene expression data through non-lethal, minimally invasive sampling can greatly expand the applications of RNA-sequencing in protected long-lived species such as marine turtles. The distinct differences in gene expression signatures between species and foraging aggregations provide insight into the functional genomics underlying the diversity in this ancient vertebrate lineage. The transcriptomic resources generated here can be used in further studies examining the evolutionary ecology and anthropogenic impacts on marine turtles.
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Affiliation(s)
- Shreya M Banerjee
- Department of Environmental Conservation, University of Massachusetts, Amherst, MA, USA
| | - Jamie Adkins Stoll
- Department of Environmental Conservation, University of Massachusetts, Amherst, MA, USA
| | - Camryn D Allen
- Marine Turtle Biology and Assessment Program, Protected Species Division, Pacific Islands Fisheries Science Center, National Marine Fisheries Service, National Oceanic and Atmospheric Administration, Honolulu, HI, USA.,Marine Mammal and Turtle Division, Southwest Fisheries Science Center, National Marine Fisheries Service, National Oceanic and Atmospheric Administration, La Jolla, CA, USA
| | - Jennifer M Lynch
- Chemical Sciences Division, National Institute of Standards and Technology, Hawai'i Pacific University, Waimanalo, HI, USA
| | - Heather S Harris
- Marine Mammal and Turtle Division, Southwest Fisheries Science Center, National Marine Fisheries Service, National Oceanic and Atmospheric Administration, La Jolla, CA, USA
| | - Lauren Kenyon
- Department of Environmental Conservation, University of Massachusetts, Amherst, MA, USA
| | - Richard E Connon
- Department of Anatomy, Physiology and Cell Biology, University of California, Davis, Davis, CA, USA
| | - Eleanor J Sterling
- Center for Biodiversity and Conservation, American Museum of Natural History, New York, NY, USA
| | | | - Kathryn McFadden
- School of Agricultural, Forest, and Environmental Sciences, Clemson University, Clemson, SC, USA
| | - Margaret M Lamont
- United States Geological Survey, Wetland and Aquatic Research Center, Gainesville, FL, USA
| | - James Benge
- Section of Molecular Biology, Division of Biological Sciences, University of California, San Diego, La Jolla, CA, USA
| | - Nadia B Fernandez
- Department of Environmental Conservation, University of Massachusetts, Amherst, MA, USA
| | - Jeffrey A Seminoff
- Marine Mammal and Turtle Division, Southwest Fisheries Science Center, National Marine Fisheries Service, National Oceanic and Atmospheric Administration, La Jolla, CA, USA
| | - Scott R Benson
- Marine Mammal and Turtle Division, Southwest Fisheries Science Center, National Marine Fisheries Service, National Oceanic and Atmospheric Administration, Moss Landing, CA, 95039, USA.,Moss Landing Marine Laboratories, San Jose State University, Moss Landing, CA, 95039, USA
| | - Rebecca L Lewison
- Department of Biology, San Diego State University, San Diego, CA, USA
| | - Tomoharu Eguchi
- Marine Mammal and Turtle Division, Southwest Fisheries Science Center, National Marine Fisheries Service, National Oceanic and Atmospheric Administration, La Jolla, CA, USA
| | | | - Jessy R Hapdei
- Jessy's Tag Services, Saipan, Commonwealth of the Northern Mariana Islands, USA
| | - Marc R Rice
- Hawai'i Preparatory Academy, Kamuela, HI, USA
| | - Summer Martin
- Marine Turtle Biology and Assessment Program, Protected Species Division, Pacific Islands Fisheries Science Center, National Marine Fisheries Service, National Oceanic and Atmospheric Administration, Honolulu, HI, USA
| | - T Todd Jones
- Marine Turtle Biology and Assessment Program, Protected Species Division, Pacific Islands Fisheries Science Center, National Marine Fisheries Service, National Oceanic and Atmospheric Administration, Honolulu, HI, USA
| | - Peter H Dutton
- Marine Mammal and Turtle Division, Southwest Fisheries Science Center, National Marine Fisheries Service, National Oceanic and Atmospheric Administration, La Jolla, CA, USA
| | | | - Lisa M Komoroske
- Department of Environmental Conservation, University of Massachusetts, Amherst, MA, USA. .,Marine Mammal and Turtle Division, Southwest Fisheries Science Center, National Marine Fisheries Service, National Oceanic and Atmospheric Administration, La Jolla, CA, USA.
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12
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Lawson L, Rollinson N. A simple model for the evolution of temperature-dependent sex determination explains the temperature sensitivity of embryonic mortality in imperiled reptiles. CONSERVATION PHYSIOLOGY 2021; 9:coab020. [PMID: 33996099 PMCID: PMC8111383 DOI: 10.1093/conphys/coab020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Revised: 08/06/2020] [Accepted: 03/29/2021] [Indexed: 06/12/2023]
Abstract
A common reptile conservation strategy involves artificial incubation of embryos and release of hatchlings or juveniles into wild populations. Temperature-dependent sex determination (TSD) occurs in most chelonians, permitting conservation managers to bias sex ratios towards females by incubating embryos at high temperatures, ultimately allowing the introduction of more egg-bearing individuals into populations. Here, we revisit classic sex allocation theory and hypothesize that TSD evolved in some reptile groups (specifically, chelonians and crocodilians) because male fitness is more sensitive to condition (general health, vigor) than female fitness. It follows that males benefit more than females from incubation environments that confer high-quality phenotypes, and hence high-condition individuals. We predict that female-producing temperatures, which comprise relatively high incubation temperatures in chelonians and crocodilians, are relatively stressful for embryos and subsequent life stages. We synthesize data from 28 studies to investigate how constant temperature incubation affects embryonic mortality in chelonians with TSD. We find several lines of evidence suggesting that warm, female-producing temperatures are more stressful than cool, male-producing temperatures. Further, we find some evidence that pivotal temperatures (TPiv, the temperature that produces a 1:1 sex ratio) may exhibit a correlated evolution with embryonic thermal tolerance. If patterns of temperature-sensitive embryonic mortality are also indicative of chronic thermal stress that occurs post-hatching, then conservation programs may benefit from incubating eggs close to species-specific TPivs, thus avoiding high-temperature incubation. Indeed, our models predict that, on average, a sex ratio of >75% females can generally be achieved by incubating eggs only 1°C above TPiv. Of equal importance, we provide insight into the enigmatic evolution of TSD in chelonians, by providing support to the hypothesis that TSD evolution is related to the quality of the phenotype conferred by incubation temperature, with males produced in high-quality incubation environments.
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Affiliation(s)
- Lauren Lawson
- Department of Ecology and Evolutionary Biology, University of Toronto, 25 Willcocks St., Room 3055, Toronto ON, Canada M5S 3B2
- School of the Environment, University of Toronto, 33 Willcocks St., Suite 1016V, Toronto ON, Canada M5S 3E8
| | - Njal Rollinson
- Department of Ecology and Evolutionary Biology, University of Toronto, 25 Willcocks St., Room 3055, Toronto ON, Canada M5S 3B2
- School of the Environment, University of Toronto, 33 Willcocks St., Suite 1016V, Toronto ON, Canada M5S 3E8
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13
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Rivera HE, Aichelman HE, Fifer JE, Kriefall NG, Wuitchik DM, Wuitchik SJS, Davies SW. A framework for understanding gene expression plasticity and its influence on stress tolerance. Mol Ecol 2021; 30:1381-1397. [PMID: 33503298 DOI: 10.1111/mec.15820] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 12/10/2020] [Accepted: 01/20/2021] [Indexed: 12/18/2022]
Abstract
Phenotypic plasticity can serve as a stepping stone towards adaptation. Recently, studies have shown that gene expression contributes to emergent stress responses such as thermal tolerance, with tolerant and susceptible populations showing distinct transcriptional profiles. However, given the dynamic nature of gene expression, interpreting transcriptomic results in a way that elucidates the functional connection between gene expression and the observed stress response is challenging. Here, we present a conceptual framework to guide interpretation of gene expression reaction norms in the context of stress tolerance. We consider the evolutionary and adaptive potential of gene expression reaction norms and discuss the influence of sampling timing, transcriptomic resilience, as well as complexities related to life history when interpreting gene expression dynamics and how these patterns relate to host tolerance. We highlight corals as a case study to demonstrate the value of this framework for non-model systems. As species face rapidly changing environmental conditions, modulating gene expression can serve as a mechanistic link from genetic and cellular processes to the physiological responses that allow organisms to thrive under novel conditions. Interpreting how or whether a species can employ gene expression plasticity to ensure short-term survival will be critical for understanding the global impacts of climate change across diverse taxa.
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Affiliation(s)
- Hanny E Rivera
- Department of Biology, Boston University, Boston, MA, USA
| | | | - James E Fifer
- Department of Biology, Boston University, Boston, MA, USA
| | | | | | - Sara J S Wuitchik
- Department of Biology, Boston University, Boston, MA, USA.,FAS Informatics, Harvard University, Cambridge, MA, USA
| | - Sarah W Davies
- Department of Biology, Boston University, Boston, MA, USA
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14
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Bock SL, Hale MD, Leri FM, Wilkinson PM, Rainwater TR, Parrott BB. Post-Transcriptional Mechanisms Respond Rapidly to Ecologically Relevant Thermal Fluctuations During Temperature-Dependent Sex Determination. Integr Org Biol 2020; 2:obaa033. [PMID: 33791571 PMCID: PMC7715621 DOI: 10.1093/iob/obaa033] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
An organism's ability to integrate transient environmental cues experienced during development into molecular and physiological responses forms the basis for adaptive shifts in phenotypic trajectories. During temperature-dependent sex determination (TSD), thermal cues during discrete periods in development coordinate molecular changes that ultimately dictate sexual fate and contribute to patterns of inter- and intra-sexual variation. How these mechanisms interface with dynamic thermal environments in nature remain largely unknown. By deploying thermal loggers in wild nests of the American alligator (Alligator mississippiensis) over two consecutive breeding seasons, we observed that 80% of nests exhibit both male- and female-promoting thermal cues during the thermosensitive period, and of these nests, all exhibited both male- and female-promoting temperatures within the span of a single day. These observations raise a critical question-how are opposing environmental cues integrated into sexually dimorphic transcriptional programs across short temporal scales? To address this question, alligator embryos were exposed to fluctuating temperatures based on nest thermal profiles and sampled over the course of a daily thermal fluctuation. We examined the expression dynamics of upstream genes in the temperature-sensing pathway and find that post-transcriptional alternative splicing and transcript abundance of epigenetic modifier genes JARID2 and KDM6B respond rapidly to thermal fluctuations while transcriptional changes of downstream effector genes, SOX9 and DMRT1, occur on a delayed timescale. Our findings reveal how the basic mechanisms of TSD operate in an ecologically relevant context. We present a hypothetical hierarchical model based on our findings as well as previous studies, in which temperature-sensitive alternative splicing incrementally influences the epigenetic landscape to affect the transcriptional activity of key sex-determining genes.
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Affiliation(s)
- Samantha L Bock
- Odum School of Ecology, University of Georgia, Athens, GA 30602, USA
- Savannah River Ecology Laboratory, Aiken, SC 29802, USA
| | - Matthew D Hale
- Department of Biology, University of Virginia, Charlottesville, VA 22904, USA
| | - Faith M Leri
- Department of Biology, University of Oklahoma, Norman, OK 73019, USA
| | | | - Thomas R Rainwater
- Tom Yawkey Wildlife Center, Georgetown, SC 29440, USA
- Belle W. Baruch Institute of Coastal Ecology & Forest Science, Clemson University, Georgetown, SC 29442, USA
| | - Benjamin B Parrott
- Odum School of Ecology, University of Georgia, Athens, GA 30602, USA
- Savannah River Ecology Laboratory, Aiken, SC 29802, USA
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15
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Burraco P, Orizaola G, Monaghan P, Metcalfe NB. Climate change and ageing in ectotherms. GLOBAL CHANGE BIOLOGY 2020; 26:5371-5381. [PMID: 32835446 DOI: 10.1111/gcb.15305] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Revised: 07/31/2020] [Accepted: 07/31/2020] [Indexed: 06/11/2023]
Abstract
Human activity is changing climatic conditions at an unprecedented rate. The impact of these changes may be especially acute on ectotherms since they have limited capacities to use metabolic heat to maintain their body temperature. An increase in temperature is likely to increase the growth rate of ectothermic animals, and may also induce thermal stress via increased exposure to heat waves. Fast growth and thermal stress are metabolically demanding, and both factors can increase oxidative damage to essential biomolecules, accelerating the rate of ageing. Here, we explore the potential impact of global warming on ectotherm ageing through its effects on reactive oxygen species production, oxidative damage, and telomere shortening, at the individual and intergenerational levels. Most evidence derives primarily from vertebrates, although the concepts are broadly applicable to invertebrates. We also discuss candidate mechanisms that could buffer ectotherms from the potentially negative consequences of climate change on ageing. Finally, we suggest some potential applications of the study of ageing mechanisms for the implementation of conservation actions. We find a clear need for more ecological, biogeographical, and evolutionary studies on the impact of global climate change on patterns of ageing rates in wild populations of ectotherms facing warming conditions. Understanding the impact of warming on animal life histories, and on ageing in particular, needs to be incorporated into the design of measures to preserve biodiversity to improve their effectiveness.
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Affiliation(s)
- Pablo Burraco
- Institute of Biodiversity, Animal Health, and Comparative Medicine, College of Medical, Veterinary, and Life Sciences, University of Glasgow, Glasgow, UK
- Animal Ecology, Department of Ecology and Genetics, Evolutionary Biology Centre, Uppsala University, Uppsala, Sweden
| | - Germán Orizaola
- IMIB-Biodiversity Research Institute (Univ. Oviedo-CSIC-Principado Asturias), Mieres-Asturias, Spain
- Zoology Unit, Department of Organisms and Systems Biology, University of Oviedo, Oviedo-Asturias, Spain
| | - Pat Monaghan
- Institute of Biodiversity, Animal Health, and Comparative Medicine, College of Medical, Veterinary, and Life Sciences, University of Glasgow, Glasgow, UK
| | - Neil B Metcalfe
- Institute of Biodiversity, Animal Health, and Comparative Medicine, College of Medical, Veterinary, and Life Sciences, University of Glasgow, Glasgow, UK
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16
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Santidrián Tomillo P, Spotila JR. Temperature-Dependent Sex Determination in Sea Turtles in the Context of Climate Change: Uncovering the Adaptive Significance. Bioessays 2020; 42:e2000146. [PMID: 32896903 DOI: 10.1002/bies.202000146] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 07/22/2020] [Indexed: 11/11/2022]
Abstract
The adaptive significance of temperature-dependent sex determination (TSD) in reptiles remains unknown decades after TSD was first identified in this group. Concurrently, there is growing concern about the effect that rising temperatures may have on species with TSD, potentially producing extremely biased sex ratios or offspring of only one sex. The current state-of the-art in TSD research on sea turtles is reviewed here and, against current paradigm, it is proposed that TSD provides an advantage under warming climates. By means of coadaptation between early survival and sex ratios, sea turtles are able to maintain populations. When offspring survival declines at high temperatures, the sex that increases future fecundity (females) is produced, increasing resilience to climate warming. TSD could have helped reptiles to survive mass extinctions in the past via this model. Flaws in research on sex determination in sea turtles are also identified and it is suggested that the development of new techniques will revolutionize the field.
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Affiliation(s)
| | - James R Spotila
- Department of Biodiversity, Earth and Environmental Science, Drexel University, Philadelphia, Pennsylvania, 19104, USA
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17
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Bentley BP, Stubbs JL, Whiting SD, Mitchell NJ. Variation in thermal traits describing sex determination and development in Western Australian sea turtle populations. Funct Ecol 2020. [DOI: 10.1111/1365-2435.13645] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Blair P. Bentley
- School of Biological Sciences The University of Western Australia Crawley WA Australia
| | - Jessica L. Stubbs
- School of Biological Sciences The University of Western Australia Crawley WA Australia
| | - Scott D. Whiting
- Marine Science Program Department of Biodiversity, Conservation and Attractions Kensington WA Australia
| | - Nicola J. Mitchell
- School of Biological Sciences The University of Western Australia Crawley WA Australia
- Oceans Institute The University of Western Australia Crawley WA Australia
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18
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Massey MD, Hutchings JA. Thermal variability during ectotherm egg incubation: A synthesis and framework. JOURNAL OF EXPERIMENTAL ZOOLOGY PART 2020; 335:59-71. [PMID: 32767534 DOI: 10.1002/jez.2400] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Revised: 06/12/2020] [Accepted: 06/25/2020] [Indexed: 12/12/2022]
Abstract
Natural populations of ectothermic oviparous vertebrates typically experience thermal variability in their incubation environment. Yet an overwhelming number of laboratory studies incubate animals under constant thermal conditions that cannot capture natural thermal variability. Here, we systematically searched for studies that incubated eggs of ectothermic vertebrates, including both fishes and herpetofauna, under thermally variable regimes. We ultimately developed a compendium of 66 studies that used thermally variable conditions for egg incubation. In this review, we qualitatively discuss key findings from literature in the compendium, including the phenotypic effects resulting from different patterns of thermally variable incubation, as well as the ontogenetic persistence of these effects. We also describe a physiological framework for contextualizing some of these effects, based on thermal performance theory. Lastly, we highlight key gaps in our understanding of thermally variable incubation and offer suggestions for future studies.
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Affiliation(s)
- Melanie D Massey
- Department of Biology, Dalhousie University, Halifax, Nova Scotia, Canada
| | - Jeffrey A Hutchings
- Department of Biology, Dalhousie University, Halifax, Nova Scotia, Canada.,Flødevigen Marine Research Station, Institute of Marine Research, Bergen, Norway.,Department of Natural Sciences, University of Agder, Kristiansand, Norway
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19
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Wyneken J, Salmon M. Linking Ecology, Morphology, and Behavior to Conservation: Lessons Learned from Studies of Sea Turtles. Integr Comp Biol 2020; 60:440-455. [PMID: 32617553 DOI: 10.1093/icb/icaa044] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Here we describe examples of studies that have contributed both to a basic understanding of the biology of imperiled marine turtles, and to their management and conservation. Key elements include, first and foremost, correctly identifying species that differ strikingly in their morphology at different life stages because with growth, they change size by several orders of magnitude and have accompanying shape changes. We also review comprehensive field studies documenting the need for management actions to correct abnormal shifts in sex ratios caused by climate change. We highlight the need to describe those perturbations in terms that are clear to regulators and personnel responsible for management and conservation policies. Finally, we review several basic studies that enhance our understanding of how selection has shaped morphological, functional, and performance attributes, and describe how that knowledge can be applied to the tasks required for enhancing species recovery.
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Affiliation(s)
- Jeanette Wyneken
- Department of Biological Sciences, Florida Atlantic University, 777 Glades Road, Boca Raton, FL 33431-0991, USA
| | - Michael Salmon
- Department of Biological Sciences, Florida Atlantic University, 777 Glades Road, Boca Raton, FL 33431-0991, USA
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20
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Gárriz A, Williamson SA, Evans RG, Reina RD. A method for the collection of early-stage sea turtle embryos. ENDANGER SPECIES RES 2020. [DOI: 10.3354/esr01039] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Early-stage turtle embryos, immediately after oviposition, are very small (<5 mm diameter), hindering research on the initial period of embryonic development. For example, assessing whether turtle eggs had been fertilized and contained a viable embryo at oviposition, especially under field conditions, is complicated by the microscopic size of embryos that may have died at an early stage of development. Further, little is known about the molecular pathways that promote and regulate early developmental processes in turtles, such as pre-ovipositional embryonic arrest. To enable further investigation of the processes critical to early embryonic development in turtle species, a reliable method is required for extraction of early-stage embryos from the egg. Therefore, our aim was to develop a novel and reproducible method for extracting early-stage sea turtle embryos. Herein, we describe the technique for extracting Chelonia mydas embryos before and after white spot formation. Once the embryos were collected, the total RNA of 10 embryos was extracted to validate the method. The total RNA concentration was above 5 ng µl-1 and the RNA integrity number varied between 7.0 and 10.0, which is considered acceptable for further RNA-sequencing analyses. This extraction technique could be employed when investigating fertilization rates of turtle nests and for further investigation of the molecular biology of embryonic development in turtles. Furthermore, the technique should be adaptable to other turtle species or any oviparous species with similar eggs.
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Affiliation(s)
- A Gárriz
- School of Biological Sciences, Monash University, Clayton, Victoria 3800, Australia
| | - SA Williamson
- School of Biological Sciences, Monash University, Clayton, Victoria 3800, Australia
| | - RG Evans
- Cardiovascular Disease Program, Biomedicine Discovery Institute and Department of Physiology, Monash University, Clayton, Victoria 3800, Australia
| | - RD Reina
- School of Biological Sciences, Monash University, Clayton, Victoria 3800, Australia
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21
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Freedman AH, Clamp M, Sackton TB. Error, noise and bias in de novo transcriptome assemblies. Mol Ecol Resour 2020; 21:18-29. [PMID: 32180366 DOI: 10.1111/1755-0998.13156] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Revised: 01/25/2020] [Accepted: 03/10/2020] [Indexed: 12/21/2022]
Abstract
De novo transcriptome assembly is a powerful tool, and has been widely used over the last decade for making evolutionary inferences. However, it relies on two implicit assumptions: that the assembled transcriptome is an unbiased representation of the underlying expressed transcriptome, and that expression estimates from the assembly are good, if noisy approximations of the relative abundance of expressed transcripts. Using publicly available data for model organisms, we demonstrate that, across assembly algorithms and data sets, these assumptions are consistently violated. Bias exists at the nucleotide level, with genotyping error rates ranging from 30% to 83%. As a result, diversity is underestimated in transcriptome assemblies, with consistent underestimation of heterozygosity in all but the most inbred samples. Even at the gene level, expression estimates show wide deviations from map-to-reference estimates, and positive bias at lower expression levels. Standard filtering of transcriptome assemblies improves the robustness of gene expression estimates but leads to the loss of a meaningful number of protein-coding genes, including many that are highly expressed. We demonstrate a computational method, length-rescaled CPM, to partly alleviate noise and bias in expression estimates. Researchers should consider ways to minimize the impact of bias in transcriptome assemblies.
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Affiliation(s)
- Adam H Freedman
- Faculty of Arts and Sciences Informatics Group, Harvard University, Cambridge, MA, USA
| | - Michele Clamp
- Faculty of Arts and Sciences Informatics Group, Harvard University, Cambridge, MA, USA
| | - Timothy B Sackton
- Faculty of Arts and Sciences Informatics Group, Harvard University, Cambridge, MA, USA
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22
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Castelli MA, Whiteley SL, Georges A, Holleley CE. Cellular calcium and redox regulation: the mediator of vertebrate environmental sex determination? Biol Rev Camb Philos Soc 2020; 95:680-695. [DOI: 10.1111/brv.12582] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Revised: 01/08/2020] [Accepted: 01/13/2020] [Indexed: 12/16/2022]
Affiliation(s)
- Meghan A. Castelli
- CSIROAustralian National Wildlife Collection, GPO Box 1700 Canberra 2601 Australia
- Institute for Applied EcologyUniversity of Canberra Canberra 2617 Australia
| | - Sarah L. Whiteley
- CSIROAustralian National Wildlife Collection, GPO Box 1700 Canberra 2601 Australia
- Institute for Applied EcologyUniversity of Canberra Canberra 2617 Australia
| | - Arthur Georges
- Institute for Applied EcologyUniversity of Canberra Canberra 2617 Australia
| | - Clare E. Holleley
- CSIROAustralian National Wildlife Collection, GPO Box 1700 Canberra 2601 Australia
- Institute for Applied EcologyUniversity of Canberra Canberra 2617 Australia
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23
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Du WG, Shine R, Ma L, Sun BJ. Adaptive responses of the embryos of birds and reptiles to spatial and temporal variations in nest temperatures. Proc Biol Sci 2019; 286:20192078. [PMID: 31744441 DOI: 10.1098/rspb.2019.2078] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Natural nests of egg-laying birds and reptiles exhibit substantial thermal variation, at a range of spatial and temporal scales. Rates and trajectories of embryonic development are highly sensitive to temperature, favouring an ability of embryos to respond adaptively (i.e. match their developmental biology to local thermal regimes). Spatially, thermal variation can be significant within a single nest (top to bottom), among adjacent nests (as a function of shading, nest depth etc.), across populations that inhabit areas with different weather conditions, and across species that differ in climates occupied and/or nest characteristics. Thermal regimes also vary temporally, in ways that generate differences among nests within a single population (e.g. due to seasonal timing of laying), among populations and across species. Anthropogenic activities (e.g. habitat clearing, climate change) add to this spatial and temporal diversity in thermal regimes. We review published literature on embryonic adaptations to spatio-temporal heterogeneity in nest temperatures. Although relatively few taxa have been studied in detail, and proximate mechanisms remain unclear, our review identifies many cases in which natural selection appears to have fine-tuned embryogenesis to match local thermal regimes. Developmental rates have been reported to differ between uppermost versus lower eggs within a single nest, between eggs laid early versus late in the season, and between populations from cooler versus warmer climates. We identify gaps in our understanding of thermal adaptations of early (embryonic) phases of the life history, and suggest fruitful opportunities for future research.
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Affiliation(s)
- Wei-Guo Du
- Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, People's Republic of China.,Center for Excellence in Animal Evolution and Genetics, Chinese Academy of Sciences, Kunming 650223, People's Republic of China
| | - Richard Shine
- Department of Biological Sciences, Macquarie University, North Ryde, New South Wales 2109, Australia
| | - Liang Ma
- Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, People's Republic of China
| | - Bao-Jun Sun
- Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, People's Republic of China
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24
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Scudiero R, Verderame M, Motta CM, Migliaccio V, Simoniello P. HSP70 localization in Podarcissiculus embryos under natural thermal regime and following a non-lethal cold shock. C R Biol 2019; 342:299-308. [PMID: 31734081 DOI: 10.1016/j.crvi.2019.10.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Accepted: 10/07/2019] [Indexed: 11/30/2022]
Abstract
The Heat Shock Proteins (HSPs) are a superfamily of molecular chaperones that maintain cellular homeostasis under stress. HSP70 represents the major stress-inducible family member, often activated in response to changes in thermal ranges of organisms, and therefore playing an important role enhancing thermal tolerance limits in ectothermic animals. The present study aimed to investigate the presence and the localization of HSP70 through the development of Podarcis siculus, an oviparous lizard inhabiting temperate Mediterranean regions, showing a limited potential to tolerate thermal changes during embryogenesis. Immunohistochemical analysis demonstrated that HSP70 protein is constitutively present in early embryonic stages, abundantly distributed in eye, in encephalic domains (predominantly in ventricular areas and in grey matter), in grey matter of spinal cord, in lung, gut mucosa, hepatic cords and kidney tubules. Interestingly, a severe drop in incubation temperature (5°C for 3 days) does not induce enhancements in HSP70 levels nor changes in tissues localization. These results suggest that the HSP70 found in P. siculus embryos represents a non-inducible, constitutive molecular chaperone that should be better called Heat Shock Cognate 70 (HSC70); the presence of stress-induced members of the HSP family in P. siculus has yet to be proven.
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Affiliation(s)
- Rosaria Scudiero
- Department of Biology, University Federico II, via Cintia, 80126 Napoli, Italy.
| | | | - Chiara Maria Motta
- Department of Biology, University Federico II, via Cintia, 80126 Napoli, Italy
| | - Vincenzo Migliaccio
- Department of Biology, University Federico II, via Cintia, 80126 Napoli, Italy
| | - Palma Simoniello
- Department of Science and Technologies, University of Naples Parthenope, 80143 Napoli, Italy
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25
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Hall JM, Warner DA. Thermal tolerance in the urban heat island: thermal sensitivity varies ontogenetically and differs between embryos of two sympatric ectotherms. J Exp Biol 2019; 222:jeb.210708. [DOI: 10.1242/jeb.210708] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Accepted: 09/11/2019] [Indexed: 01/05/2023]
Abstract
Most studies of thermal tolerance use adults, but early-life stages (e.g. embryos) are often more sensitive to thermal agitation. Studies that examine effects on embryos rarely assess the potential for thermal tolerance to change with ontogeny or how effects differ among sympatric species, and often utilize unrealistic temperature treatments. We used thermal fluctuations from nests within the urban-heat island to determine how thermal tolerance of embryos changes across development and differs among two sympatric lizard species (Anolis sagrei and A. cristatellus). We applied fluctuations that varied in frequency and magnitude at different times during development and measured effects on embryo physiology, egg survival, and hatchling morphology, growth, and survival. Thermal tolerance differed between the species by∼2 °C: embryos of A. sagrei, a lizard that prefers warmer, open-canopy microhabitats, were more robust to thermal stress than embryos of A. cristatellus, which prefers cooler, closed-canopy microhabitats. Moreover, thermal tolerance changed through development; however, the nature of this change differed between the species. For A. cristatellus, thermal tolerance was greatest mid-development. For A. sagrei the relationship was not statistically clear. The greatest effects of thermal stress were on embryo and hatchling survival and embryo physiology. Hatchling morphology and growth were less affected. Inter-specific responses and the timing of stochastic thermal events with respect to development have important effects on egg mortality. Thus, research that integrates ecologically-meaningful thermal treatments, considers multiple life-history stages, and examines interspecific responses will be critical to make robust predictions of the impacts of global change on wildlife.
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Affiliation(s)
- Joshua M. Hall
- Auburn University, Department of Biological Sciences, 101 Rouse Life Sciences Building, Auburn, Alabama 36849, USA
| | - Daniel A. Warner
- Auburn University, Department of Biological Sciences, 101 Rouse Life Sciences Building, Auburn, Alabama 36849, USA
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26
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Stubbs JL, Mitchell NJ. The Influence of Temperature on Embryonic Respiration, Growth, and Sex Determination in a Western Australian Population of Green Turtles (Chelonia mydas). Physiol Biochem Zool 2018; 91:1102-1114. [DOI: 10.1086/700433] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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27
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Andrew SC, Jensen H, Hagen IJ, Lundregan S, Griffith SC. Signatures of genetic adaptation to extremely varied Australian environments in introduced European house sparrows. Mol Ecol 2018; 27:4542-4555. [DOI: 10.1111/mec.14897] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2018] [Accepted: 09/24/2018] [Indexed: 12/19/2022]
Affiliation(s)
- Samuel C. Andrew
- Department of Biological Sciences; Macquarie University; Sydney New South Wales Australia
| | - Henrik Jensen
- Centre for Biodiversity Dynamics; Department of Biology; Norwegian University of Science and Technology; Trondheim Norway
| | - Ingerid J. Hagen
- Centre for Biodiversity Dynamics; Department of Biology; Norwegian University of Science and Technology; Trondheim Norway
- Norwegian Institute for Nature Research; Trondheim Norway
| | - Sarah Lundregan
- Centre for Biodiversity Dynamics; Department of Biology; Norwegian University of Science and Technology; Trondheim Norway
| | - Simon C. Griffith
- Department of Biological Sciences; Macquarie University; Sydney New South Wales Australia
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28
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MEESTER LD, STOKS R, BRANS KI. Genetic adaptation as a biological buffer against climate change: Potential and limitations. Integr Zool 2018; 13:372-391. [PMID: 29168625 PMCID: PMC6221008 DOI: 10.1111/1749-4877.12298] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Climate change profoundly impacts ecosystems and their biota, resulting in range shifts, novel interactions, food web alterations, changed intensities of host-parasite interactions, and extinctions. An increasing number of studies have documented evolutionary changes in traits such as phenology and thermal tolerance. In this opinion paper, we argue that, while evolutionary responses have the potential to provide a buffer against extinctions or range shifts, a number of constraints and complexities blur this simple prediction. First, there are limits to evolutionary potential both in terms of genetic variation and demographic effects, and these limits differ strongly among taxa and populations. Second, there can be costs associated with genetic adaptation, such as a reduced evolutionary potential towards other (human-induced) environmental stressors or direct fitness costs due to tradeoffs. Third, the differential capacity of taxa to genetically respond to climate change results in novel interactions because different organism groups respond to a different degree with local compared to regional (dispersal and range shift) responses. These complexities result in additional changes in the selection pressures on populations. We conclude that evolution can provide an initial buffer against climate change for some taxa and populations but does not guarantee their survival. It does not necessarily result in reduced extinction risks across the range of taxa in a region or continent. Yet, considering evolution is crucial, as it is likely to strongly change how biota will respond to climate change and will impact which taxa will be the winners or losers at the local, metacommunity and regional scales.
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Affiliation(s)
- Luc De MEESTER
- Laboratory of Aquatic Ecology, Evolution and ConservationLeuvenBelgium
| | - Robby STOKS
- Evolutionary Stress Ecology and EcotoxicologyLeuvenBelgium
| | - Kristien I. BRANS
- Laboratory of Aquatic Ecology, Evolution and ConservationLeuvenBelgium
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29
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While GM, Noble DW, Uller T, Warner DA, Riley JL, Du W, Schwanz LE. Patterns of developmental plasticity in response to incubation temperature in reptiles. JOURNAL OF EXPERIMENTAL ZOOLOGY PART 2018; 329:162-176. [DOI: 10.1002/jez.2181] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2018] [Revised: 04/16/2018] [Accepted: 05/07/2018] [Indexed: 12/13/2022]
Affiliation(s)
- Geoffrey M. While
- School of Biological Sciences University of Tasmania Hobart Australia
| | - Daniel W.A. Noble
- Evolution & Ecology Research Centre School of Biological, Earth, and Environmental Sciences University of New South Wales Sydney Australia
| | - Tobias Uller
- Department of Biology Lund University Lund Sweden
| | - Daniel A. Warner
- Department of Biological Sciences Auburn University Auburn Alabama
| | - Julia L. Riley
- Evolution & Ecology Research Centre School of Biological, Earth, and Environmental Sciences University of New South Wales Sydney Australia
- Department of Biological Sciences Macquarie University Sydney Australia
| | - Wei‐Guo Du
- Institute of Zoology Chinese Academy of Sciences Beijing China
| | - Lisa E. Schwanz
- Evolution & Ecology Research Centre School of Biological, Earth, and Environmental Sciences University of New South Wales Sydney Australia
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30
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Dang W, Lu H, Wu Q, Gao Y, Qi Q, Fan H. Comparative transcriptional profiling analysis of the effect of heat waves during embryo incubation on the hatchlings of the Chinese soft-shelled turtle ( Pelodiscus sinensis). Ecol Evol 2018; 8:3763-3773. [PMID: 29686856 PMCID: PMC5901165 DOI: 10.1002/ece3.3850] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2017] [Revised: 12/19/2017] [Accepted: 12/28/2017] [Indexed: 12/02/2022] Open
Abstract
Temperature is one of most the important environmental factors that affect the ontogenesis of organisms. In this study, we incubated Chinese soft‐shelled turtle eggs at 28°C (control temperature, C treatment), a temperature with a 16°C cold shock and a 36°C heat shock twice per week (S treatment) or a ramp‐programmed temperature of 29 ± 9°C (with 12 hr (+) and 12 hr (−) every day) (F treatment). The incubation period, hatching success, hatchling weight, and locomotor performance were significantly different between the controls and the different heat treatment groups. The pathogen challenge results illustrated that hatchlings from the S treatment group were more resistant to bacterial infection, whereas hatchlings from the F treatment group were more vulnerable. We used RNA‐seq quantification analysis to identify differentially expressed genes (DEGs) of hatchlings in the S treatment group. Based on the functional annotation results for the DEGs, 9 genes were chosen to verify the RNA‐seq results. The background expression of DEGs was also analyzed for the three treatments, as was the regulation of the pathogen challenge. The results showed that 8 DEGs were related to the immune response after pathogen challenge and that temperature was an important factor in differential regulation of the immunity pathways.
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Affiliation(s)
- Wei Dang
- Hangzhou Key Laboratory of Animal Adaptation and Evolution Hangzhou Key Laboratory of Ecosystem Protection and Restoration School of Life and Environmental Sciences Hangzhou Normal University Hangzhou China
| | - Hongliang Lu
- Hangzhou Key Laboratory of Animal Adaptation and Evolution Hangzhou Key Laboratory of Ecosystem Protection and Restoration School of Life and Environmental Sciences Hangzhou Normal University Hangzhou China
| | - Qiong Wu
- Hangzhou Key Laboratory of Animal Adaptation and Evolution Hangzhou Key Laboratory of Ecosystem Protection and Restoration School of Life and Environmental Sciences Hangzhou Normal University Hangzhou China
| | - Yuan Gao
- Hangzhou Key Laboratory of Animal Adaptation and Evolution Hangzhou Key Laboratory of Ecosystem Protection and Restoration School of Life and Environmental Sciences Hangzhou Normal University Hangzhou China
| | - Qinqin Qi
- Hangzhou Key Laboratory of Animal Adaptation and Evolution Hangzhou Key Laboratory of Ecosystem Protection and Restoration School of Life and Environmental Sciences Hangzhou Normal University Hangzhou China.,School of Food Science and Biotechnology Zhejiang Gongshang University Hangzhou China
| | - Handong Fan
- Hangzhou Key Laboratory of Animal Adaptation and Evolution Hangzhou Key Laboratory of Ecosystem Protection and Restoration School of Life and Environmental Sciences Hangzhou Normal University Hangzhou China
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31
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Bonebrake TC, Brown CJ, Bell JD, Blanchard JL, Chauvenet A, Champion C, Chen IC, Clark TD, Colwell RK, Danielsen F, Dell AI, Donelson JM, Evengård B, Ferrier S, Frusher S, Garcia RA, Griffis RB, Hobday AJ, Jarzyna MA, Lee E, Lenoir J, Linnetved H, Martin VY, McCormack PC, McDonald J, McDonald-Madden E, Mitchell N, Mustonen T, Pandolfi JM, Pettorelli N, Possingham H, Pulsifer P, Reynolds M, Scheffers BR, Sorte CJB, Strugnell JM, Tuanmu MN, Twiname S, Vergés A, Villanueva C, Wapstra E, Wernberg T, Pecl GT. Managing consequences of climate-driven species redistribution requires integration of ecology, conservation and social science. Biol Rev Camb Philos Soc 2017; 93:284-305. [PMID: 28568902 DOI: 10.1111/brv.12344] [Citation(s) in RCA: 106] [Impact Index Per Article: 15.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2016] [Revised: 05/03/2017] [Accepted: 05/05/2017] [Indexed: 12/23/2022]
Abstract
Climate change is driving a pervasive global redistribution of the planet's species. Species redistribution poses new questions for the study of ecosystems, conservation science and human societies that require a coordinated and integrated approach. Here we review recent progress, key gaps and strategic directions in this nascent research area, emphasising emerging themes in species redistribution biology, the importance of understanding underlying drivers and the need to anticipate novel outcomes of changes in species ranges. We highlight that species redistribution has manifest implications across multiple temporal and spatial scales and from genes to ecosystems. Understanding range shifts from ecological, physiological, genetic and biogeographical perspectives is essential for informing changing paradigms in conservation science and for designing conservation strategies that incorporate changing population connectivity and advance adaptation to climate change. Species redistributions present challenges for human well-being, environmental management and sustainable development. By synthesising recent approaches, theories and tools, our review establishes an interdisciplinary foundation for the development of future research on species redistribution. Specifically, we demonstrate how ecological, conservation and social research on species redistribution can best be achieved by working across disciplinary boundaries to develop and implement solutions to climate change challenges. Future studies should therefore integrate existing and complementary scientific frameworks while incorporating social science and human-centred approaches. Finally, we emphasise that the best science will not be useful unless more scientists engage with managers, policy makers and the public to develop responsible and socially acceptable options for the global challenges arising from species redistributions.
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Affiliation(s)
- Timothy C Bonebrake
- School of Biological Sciences, The University of Hong Kong, Hong Kong SAR, 999077, China
| | | | - Johann D Bell
- Australian National Centre for Ocean Resources and Security, University of Wollongong, Wollongong, NSW 2522, Australia.,Conservation International, Arlington, VA, 22202, U.S.A
| | - Julia L Blanchard
- Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, TAS 7001, Australia.,Centre for Marine Socioecology, University of Tasmania, Hobart, TAS 7001, Australia
| | - Alienor Chauvenet
- Centre for Biodiversity and Conservation Science, University of Queensland, St Lucia, 4072, Australia.,ARC Centre of Excellence for Environmental Decisions, School of Biological Sciences, The University of Queensland, Brisbane, 4072, Australia
| | - Curtis Champion
- Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, TAS 7001, Australia
| | - I-Ching Chen
- Department of Life Sciences, National Cheng Kung University, Tainan, 701, Republic of China
| | - Timothy D Clark
- Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, TAS 7001, Australia.,CSIRO Agriculture and Food, Hobart, 7000, Australia
| | - Robert K Colwell
- Center for Macroecology, Evolution and Climate, University of Copenhagen, Natural History Museum of Denmark, 2100, Copenhagen, Denmark.,Department of Ecology and Evolutionary Biology, University of Connecticut, Storrs, CT, 06269, U.S.A.,University of Colorado Museum of Natural History, Boulder, CO, 80309, U.S.A.,Departmento de Ecologia, Universidade Federal de Goiás, CP 131, 74.001-970, Goiânia, Brazil
| | - Finn Danielsen
- Nordic Foundation for Development and Ecology (NORDECO), Copenhagen, DK-1159, Denmark
| | - Anthony I Dell
- National Great Rivers Research and Education Center (NGRREC), East Alton, IL, 62024, U.S.A.,Department of Biology, Washington University in St. Louis, St. Louis, MO, 631303, USA
| | - Jennifer M Donelson
- School of Life Sciences, University of Technology, Sydney, 2007, Australia.,ARC Centre of Excellence for Coral Reef Studies, James Cook University, Townsville, 4811, Australia
| | - Birgitta Evengård
- Division of Infectious Diseases, Department of Clinical Microbiology, Umea University, 90187, Umea, Sweden
| | | | - Stewart Frusher
- Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, TAS 7001, Australia.,Centre for Marine Socioecology, University of Tasmania, Hobart, TAS 7001, Australia
| | - Raquel A Garcia
- Department of Statistical Sciences, Centre for Statistics in Ecology, the Environment and Conservation, University of Cape Town, Rondebosch, 7701, South Africa.,Faculty of Science, Department of Botany and Zoology, Centre for Invasion Biology, Stellenbosch University, Matieland, 7602, South Africa
| | - Roger B Griffis
- NOAA National Marine Fisheries Service, Office of Science and Technology, Silver Spring, MD, 20910, U.S.A
| | - Alistair J Hobday
- Centre for Marine Socioecology, University of Tasmania, Hobart, TAS 7001, Australia.,CSIRO, Oceans and Atmosphere, Hobart, 7000, Australia
| | - Marta A Jarzyna
- Department of Ecology and Evolutionary Biology, Yale University, New Haven, CT, 06511, U.S.A
| | - Emma Lee
- Centre for Marine Socioecology, University of Tasmania, Hobart, TAS 7001, Australia
| | - Jonathan Lenoir
- UR « Ecologie et dynamique des systèmes anthropisés » (EDYSAN, FRE 3498 CNRS-UPJV), Université de Picardie Jules Verne, FR-80037, Amiens Cedex 1, France
| | - Hlif Linnetved
- Faculty of Science, Institute of Food and Resource Economics, University of Copenhagen, DK-1958, Frederiksberg C, Denmark
| | - Victoria Y Martin
- Cornell Lab of Ornithology, Cornell University, Ithaca, NY, 14850, U.S.A
| | | | - Jan McDonald
- Centre for Marine Socioecology, University of Tasmania, Hobart, TAS 7001, Australia.,Faculty of Law, University of Tasmania, Hobart, 7001, Australia
| | - Eve McDonald-Madden
- ARC Centre of Excellence for Environmental Decisions, School of Biological Sciences, The University of Queensland, Brisbane, 4072, Australia.,School of Geography, Planning and Environmental Management, The University of Queensland, Brisbane, 4072, Australia
| | - Nicola Mitchell
- School of Biological Sciences, University of Western Australia, Crawley, 6009, Australia
| | - Tero Mustonen
- Snowchange Cooperative, University of Eastern Finland, 80130, Joensuu, Finland
| | - John M Pandolfi
- School of Biological Sciences, ARC Centre of Excellence for Coral Reef Studies, The University of Queensland, Brisbane, 4072, Australia
| | | | - Hugh Possingham
- ARC Centre of Excellence for Environmental Decisions, School of Biological Sciences, The University of Queensland, Brisbane, 4072, Australia.,Grand Challenges in Ecosystems and the Environment, Silwood Park, Imperial College, London, SW7 2AZ, UK
| | - Peter Pulsifer
- National Snow and Ice Data Center, University of Colorado Boulder, Boulder, CO, 80309, U.S.A
| | - Mark Reynolds
- The Nature Conservancy, San Francisco, CA, 94105, U.S.A
| | - Brett R Scheffers
- Department of Wildlife Ecology and Conservation, University of Florida/IFAS, Gainesville, FL, 32611, U.S.A
| | - Cascade J B Sorte
- Department of Ecology and Evolutionary Biology, University of California, Irvine, CA, 92697, U.S.A
| | - Jan M Strugnell
- Centre for Sustainable Tropical Fisheries and Aquaculture, College of Science and Engineering, James Cook University, Townsville, 4811, Australia
| | - Mao-Ning Tuanmu
- Biodiversity Research Center, Academia Sinica, Taipei, 115, Republic of China
| | - Samantha Twiname
- Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, TAS 7001, Australia
| | - Adriana Vergés
- Centre for Marine Bio-Innovation and Evolution & Ecology Research Centre, School of Biological, Earth and Environmental Sciences, University of New South Wales, Sydney, 2052, Australia
| | - Cecilia Villanueva
- Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, TAS 7001, Australia
| | - Erik Wapstra
- School of Biological Sciences, University of Tasmania, Tasmania, 7001, Australia
| | - Thomas Wernberg
- School of Biological Sciences, University of Western Australia, Crawley, 6009, Australia.,UWA Oceans Institute, University of Western Australia, Perth, 6009, Australia
| | - Gretta T Pecl
- Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, TAS 7001, Australia.,Centre for Marine Socioecology, University of Tasmania, Hobart, TAS 7001, Australia
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