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Dolai A, Soltani S, Smarr B, Das A. Divergent Circadian Foraging Strategies in Response to Diurnal Predation Versus Persistent Rain in Asian Weaver Ant, Oecophylla smaragdina, Suggest Possible Energetic Trade-offs. J Biol Rhythms 2024; 39:295-307. [PMID: 38459718 PMCID: PMC11139593 DOI: 10.1177/07487304241233778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/10/2024]
Abstract
The study of chronobiology of foraging behavior in social insects offers valuable models for the investigation of circadian rhythms. We scored hourly nest entries and exits of Oecophylla smaragdina (Asian weaver ant) workers in 9 active non-polydomous nests on days with and without rain and with and without a primarily diurnal predator present. After determining that Oecophylla display a high nest fidelity, we focused exclusively on analyzing nest entry counts: we found a significant decrease in overall entry counts of individual ants on rainy days compared with non-rainy days (p < 0.0001). They usually maintain a typical diurnal pattern of foraging activity; however, that regularity was often distorted during rainy periods but appeared to quickly revert to typical patterns following rain. This lack of compensatory foraging activity following a period of rain supports the hypothesis that these ants have enough food reserves to withstand a pure masking-induced suppression of foraging activity. Predation through bird anting, too, decreased foraging activity but appeared to cause a reversal in foraging activity timing from diurnal to nocturnal foraging. Daily periodicity of foraging was significantly disrupted in most nests during rain; however, daily foraging periodicity was disrupted in only one nest due to presence of predators. Thus, rain and predation both exert significant impacts on the overall foraging activity of Asian weaver ants, but while persistent pressure from rain seemed to primarily cause masking (diminution) of circadian foraging activity, predation restricted to the daytime resulted in phase-inversion to nocturnal foraging activity, with little diminution. This is consistent with different energetic strategies being used in response to different pressures by this species.
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Affiliation(s)
- Avishek Dolai
- Department of Zoology, University of Calcutta, 35 Ballygunge Circular Road, Ballygunge, Kolkata, 700019, West Bengal, India
| | - Severine Soltani
- Bioinformatics and Systems Biology Graduate Program, University of California San Diego, La Jolla, CA, 92093, USA
- Shu Chien-Gene Lay Department of Bioengineering, University of California San Diego, La Jolla, CA, 92093, USA
| | - Benjamin Smarr
- Shu Chien-Gene Lay Department of Bioengineering, University of California San Diego, La Jolla, CA, 92093, USA
- Halıcıoğlu Data Science Institute, University of California San Diego, La Jolla, CA, 92093, USA
| | - Amlan Das
- Department of Zoology, University of Calcutta, 35 Ballygunge Circular Road, Ballygunge, Kolkata, 700019, West Bengal, India
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Huang X, Li Q, Xu Y, Li A, Wang S, Chen Y, Zhang C, Zhang X, Wang H, Lv C, Sun B, Li S, Kang L, Chen B. A neural m 6A pathway regulates behavioral aggregation in migratory locusts. SCIENCE CHINA. LIFE SCIENCES 2024; 67:1242-1254. [PMID: 38478296 DOI: 10.1007/s11427-023-2476-1] [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: 08/12/2023] [Accepted: 10/07/2023] [Indexed: 06/07/2024]
Abstract
RNA N6-methyladenosine (m6A), as the most abundant modification of messenger RNA, can modulate insect behaviors, but its specific roles in aggregation behaviors remain unexplored. Here, we conducted a comprehensive molecular and physiological characterization of the individual components of the methyltransferase and demethylase in the migratory locust Locusta migratoria. Our results demonstrated that METTL3, METTL14 and ALKBH5 were dominantly expressed in the brain and exhibited remarkable responses to crowding or isolation. The individual knockdown of methyltransferases (i.e., METTL3 and METTL14) promoted locust movement and conspecific attraction, whereas ALKBH5 knockdown induced a behavioral shift toward the solitary phase. Furthermore, global transcriptome profiles revealed that m6A modification could regulate the orchestration of gene expression to fine tune the behavioral aggregation of locusts. In summary, our in vivo characterization of the m6A functions in migratory locusts clearly demonstrated the crucial roles of the m6A pathway in effectively modulating aggregation behaviors.
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Affiliation(s)
- Xianliang Huang
- School of Life Science, Institutes of Life Science and Green Development, Hebei University, Baoding, 071002, China
| | - Qing Li
- College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
- State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, China
| | - Yanan Xu
- Institute of Health Sciences, Anhui University, Hefei, 230601, China
| | - Ang Li
- Beijing Institute of Genomics, Chinese Academy of Sciences, Beijing, 100101, China
| | - Shanzheng Wang
- Beijing Institute of Genomics, Chinese Academy of Sciences, Beijing, 100101, China
| | - Yusheng Chen
- Beijing Institute of Genomics, Chinese Academy of Sciences, Beijing, 100101, China
| | - Chunrui Zhang
- State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, China
| | - Xia Zhang
- State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, China
| | - Hailin Wang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100101, China
| | - Cong Lv
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100101, China
| | - Baofa Sun
- Beijing Institute of Genomics, Chinese Academy of Sciences, Beijing, 100101, China
| | - Shaoqin Li
- College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Le Kang
- School of Life Science, Institutes of Life Science and Green Development, Hebei University, Baoding, 071002, China.
- State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, China.
| | - Bing Chen
- School of Life Science, Institutes of Life Science and Green Development, Hebei University, Baoding, 071002, China.
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3
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Exélis MP, Ramli R, Abdul Latif SA, Idris AH, Clemente-Orta G, Kermorvant C. Elucidating the daily foraging activity pattern of Oecophylla smaragdina to minimize bite nuisances in Asia large agro-system plantations. Heliyon 2024; 10:e26105. [PMID: 38434038 PMCID: PMC10906178 DOI: 10.1016/j.heliyon.2024.e26105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 01/27/2024] [Accepted: 02/07/2024] [Indexed: 03/05/2024] Open
Abstract
Oecophylla smaragdina F., the Asian weaver ant, is one of the oil palm plantation's (Elaeis guineensis) potential predators, for the invasive bagworm species Metisa plana Walker, but this ant is a nuisance species that irritates plantation workers with their sharp bites. Here we assess the foraging activities (FA) of O. smaragdina's major workers, identify its inactive times and the existence of supervision, a novelty for social insects. Between 2018 and 2022, the pattern of trunk foraging activity was used as a mitigation measure. The relationship between trunk FA and air temperature (AT), relative humidity (RH), air pressure (AP), and rainfall interception (RI) was also investigated. Our results showed that, O. smaragdina is a strictly diurnal ant species, has little to no crepuscular activity, and stopped foraging during darkness. Moreover, veteran bigger workers systematically acted as supervisors by monitoring trails, intercepting, and bringing back to nests smaller individuals during heat peaks. In relation to population size relative abundance, all colonies displayed greater intensity during the warmest daily periods with higher mean forager density among the bigger colony, regardless of the dry-rainy intervals corresponded to minimal activity from late scotophase to early photophase and showed a bimodal pattern. Thus, forager activity peaked between 1100-1530 h and 1745-1845 h, and an average two-fold daily sudden decrease in intensity between 1620 and 1650 h as a partial cut-off period (first report). Furthermore, foraging activity, AT, AP showed a significant positive correlation while RH was negative. Finally, we found that from the base palm trunks, defensive territorial layers extended to 5 m on average with different spatial configurations indicating greater foraging density within the first 2 m. Our study shows O. smaragdina daily low activity periods, before 1000 h, being the most suitable to avoid forager attacks to facilitate pruning and harvesting tasks.
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Affiliation(s)
- Moïse Pierre Exélis
- Institute of Biological Sciences, Faculty of Science, Universiti Malaya, Lembah Pantai, 50603, Kuala Lumpur, Malaysia
- Direction de l'Enseignement Supérieur et de la Recherche, Hôtel de la Collectivité Territoriale de la Martinique (CTM), Rue Gaston Defferre - Cluny - CS 30137, 97201, Fort-de-France, Martinique
| | - Rosli Ramli
- Institute of Biological Sciences, Faculty of Science, Universiti Malaya, Lembah Pantai, 50603, Kuala Lumpur, Malaysia
| | - Samshul Amry Abdul Latif
- Research & Innovation - Kulliyyah of Languages and Management, International Islamic University Malaysia, KM 1, Jalan Panchor, 84600, Pagoh, Muar, Johor, Malaysia
| | - Azarae Hj Idris
- Institute of Biological Sciences, Faculty of Science, Universiti Malaya, Lembah Pantai, 50603, Kuala Lumpur, Malaysia
| | - Gemma Clemente-Orta
- Instituto de Ciencias Agrarias, Consejo Superior de Investigaciones Científicas (ICA-CSIC), C/ Serrano 115 dpdo., 28006, Madrid, Spain
- Departament de Producció Vegetal i Ciència Forestal, AGROTECNIO Center, Universitat de Lleida, Rovira Roure 191, 25198, Lleida, Spain
| | - Claire Kermorvant
- Applied Mathematics Consultancy for Environmental Data Analysis - StatEnCo, Saint-Pée-sur-Nivelle, Pays Basque, France
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Prez-Delgado AJ, Lugo D, Santos-Perdomo I, Jimnez-Garca E, Surez D. Rediscovery of the Canary Islands endemic Aphaenogaster hesperia Santschi, 1911 (Hymenoptera, Formicidae, Myrmicinae). Zootaxa 2023; 5383:67-74. [PMID: 38221260 DOI: 10.11646/zootaxa.5383.1.5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Indexed: 01/16/2024]
Abstract
The Canary Islands endemic species Aphaenogaster hesperia Santschi, 1911 was described based solely on two workers captured in a north-western coastal area of Tenerife (Canary Islands) in 1902 and 1903. The species has not been recorded in the last 100 years and only information on its type locality is known. This species, belonging to the crocea group, has been recently rediscovered in a new site within a pine forest at 950 m a.s.l. The new area is a very different habitat, revealing a lack of ecological knowledge of the species, which may have caused the species to have remained unnoticed for more than 100 years. Novel distributional and morphological data are provided.
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Affiliation(s)
- Antonio J Prez-Delgado
- Island Ecology and Evolution Research Group; Instituto de Productos Naturales y Agrobiologa (IPNA-CSIC); 38206 La Laguna (Tenerife; Spain); Departamento de Biologa Animal; Edafologa y Geologa; Facultad de Ciencias; Universidad de La Laguna; 38206 La Laguna (Tenerife; Spain).
| | - David Lugo
- Departamento de Biologa Animal; Edafologa y Geologa; Facultad de Ciencias; Universidad de La Laguna; 38206 La Laguna (Tenerife; Spain).
| | - Irene Santos-Perdomo
- Departamento de Biologa Animal; Edafologa y Geologa; Facultad de Ciencias; Universidad de La Laguna; 38206 La Laguna (Tenerife; Spain).
| | - Eduardo Jimnez-Garca
- Departamento de Biologa Animal; Edafologa y Geologa; Facultad de Ciencias; Universidad de La Laguna; 38206 La Laguna (Tenerife; Spain).
| | - Daniel Surez
- Island Ecology and Evolution Research Group; Instituto de Productos Naturales y Agrobiologa (IPNA-CSIC); 38206 La Laguna (Tenerife; Spain); Departamento de Biologa Animal; Edafologa y Geologa; Facultad de Ciencias; Universidad de La Laguna; 38206 La Laguna (Tenerife; Spain).
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5
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Corley RB, Dawson W, Bishop TR. A simple method to account for thermal boundary layers during the estimation of CTmax in small ectotherms. J Therm Biol 2023; 116:103673. [PMID: 37527565 DOI: 10.1016/j.jtherbio.2023.103673] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 07/13/2023] [Accepted: 07/13/2023] [Indexed: 08/03/2023]
Abstract
As temperatures rise, understanding how ectotherms will become impacted by thermal stress is of critical importance. In this context, many researchers quantify critical temperatures - these are the upper (CTmax) and lower (CTmin) thermal limits at which organisms can no longer function. Most studies estimate CTs using bath-based methods where organisms are submerged within a set thermal environment. Plate-based methods (i.e. hot plates), however, offer huge opportunity for automation and are readily available in many lab settings. Plates, however, generate a unidirectional thermal boundary layer above their surface which means that the temperatures experienced by organisms of different sizes is different. This boundary layer effect can bias estimates of critical temperatures. Here, we test the hypothesis that biases in critical temperature estimation on hot plates are driven by organism height. We also quantify the composition of the boundary layer in order to correct for these biases. We assayed four differently sized species of UK ants for their CTmax in dry baths (with no boundary layer) and on hot plates (with a boundary layer). We found that hot plates overestimated the CTmax values of the different ants, and that this overestimate was larger for taller species. By statistically modelling the thickness of the thermal boundary layer, and combining with estimates of species height, we were able to correct this overestimation and eliminate methodological differences. Our study provides two main findings. First, we provide evidence that organism height is positively related to the bias present in plate-based estimates of CTmax. Second, we show that a relatively simple statistical model can correct for this bias. By using simple corrections for boundary layer effects, as we have done here, researchers could open up a new possibility space in the design and implementation of thermal tolerance assays using plates rather than restrictive dry or water baths.
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Affiliation(s)
| | - Will Dawson
- School of Biosciences, Cardiff University, Cardiff, UK
| | - Tom R Bishop
- School of Biosciences, Cardiff University, Cardiff, UK; Department of Zoology and Entomology, University of Pretoria, Pretoria, South Africa.
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6
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Habitat-dependent variation in consistent behavioural traits does not affect the efficiency of resource acquisition in a thermophilic ant. Behav Ecol Sociobiol 2023. [DOI: 10.1007/s00265-022-03274-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
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7
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Chown SL. Macrophysiology for decision‐making. J Zool (1987) 2022. [DOI: 10.1111/jzo.13029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- S. L. Chown
- Securing Antarctica's Environmental Future, School of Biological Sciences Monash University Melbourne Victoria Australia
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8
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Parr CL, Bishop TR. The response of ants to climate change. GLOBAL CHANGE BIOLOGY 2022; 28:3188-3205. [PMID: 35274797 PMCID: PMC9314018 DOI: 10.1111/gcb.16140] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Accepted: 01/06/2022] [Indexed: 06/12/2023]
Abstract
Ants (Hymenoptera: Formicidae) are one of the most dominant terrestrial organisms worldwide. They are hugely abundant, both in terms of sheer numbers and biomass, on every continent except Antarctica and are deeply embedded within a diversity of ecological networks and processes. Ants are also eusocial and colonial organisms-their lifecycle is built on the labor of sterile worker ants who support a small number of reproductive individuals. Given the climatic changes that our planet faces, we need to understand how various important taxonomic groups will respond; this includes the ants. In this review, we synthesize the available literature to tackle this question. The answer is complicated. The ant literature has focused on temperature, and we broadly understand the ways in which thermal changes may affect ant colonies, populations, and communities. In general, we expect that species living in the Tropics, and in thermally variable microhabitats, such as the canopy and leaf litter environments, will be negatively impacted by rising temperatures. Species living in the temperate zones and those able to thermally buffer their nests in the soil or behaviorally avoid higher temperatures, however, are likely to be unaffected or may even benefit from a changed climate. How ants will respond to changes to other abiotic drivers associated with climate change is largely unknown, as is the detail on how altered ant populations and communities will ramify through their wider ecological networks. We discuss how eusociality may allow ants to adapt to, or tolerate, climate change in ways that solitary organisms cannot and we identify key geographic and phylogenetic hotspots of climate vulnerability and resistance. We finish by emphasizing the key research questions that we need to address moving forward so that we may fully appreciate how this critical insect group will respond to the ongoing climate crisis.
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Affiliation(s)
- Catherine L. Parr
- Department of Earth, Ocean and Ecological SciencesUniversity of LiverpoolLiverpoolUK
- Department of Zoology and EntomologyUniversity of PretoriaPretoriaSouth Africa
- School of Animal, Plant and Environmental SciencesUniversity of the WitwatersrandWitsSouth Africa
| | - Tom R. Bishop
- Department of Zoology and EntomologyUniversity of PretoriaPretoriaSouth Africa
- School of BiosciencesCardiff UniversityCardiffUK
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9
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Sánchez-García D, Cerdá X, Angulo E. Temperature or competition: Which has more influence on Mediterranean ant communities? PLoS One 2022; 17:e0267547. [PMID: 35486575 PMCID: PMC9053807 DOI: 10.1371/journal.pone.0267547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Accepted: 04/11/2022] [Indexed: 11/24/2022] Open
Abstract
Temperature and competition are two of the main factors determining ant community assemblages. Temperature may allow species to forage more or less efficiently throughout the day (in accordance with the maximum activity temperature of each species). Competition can be observed and quantified from species replacements occurring during resource exploitation. We studied the interspecific competitive interactions of ant communities from the Doñana Biological Reserve (southern Spain). Ants were sampled from pitfall traps and baits in three habitats with contrasted vegetation physiognomy (savin forest, pine forest, and dry scrubland). We measured the temperature during the competitive interactions between species and created a thermal competition index (TCI) to assess the relative contribution of temperature and numerical dominance to the competitive outcomes. Temperature had unequal effects on ant activity in each type of habitat, and modulated competitive interactions. The TCI showed that a species’ success during pair interactions (replacements at baits) was driven by the proportion of workers between the two competing species and by the species-specific effect of temperature (how advantageous the temperature change is for each species during bait replacement). During competitive interactions, the effect of temperature (higher values of TCI) and numeric supremacy (higher worker proportion) gave higher success probabilities. Interspecific competitive relationships in these Mediterranean ant communities are habitat dependent and greatly influenced by temperature.
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Affiliation(s)
- Daniel Sánchez-García
- Estación Biológica de Doñana, CSIC, Sevilla, Spain
- Museum and Institute of Zoology, Polish Academy of Science, Warszawa, Poland
| | - Xim Cerdá
- Estación Biológica de Doñana, CSIC, Sevilla, Spain
- Laboratoire Écologie, Systématique, Évolution, Université Paris-Saclay, Orsay Cedex, France
- * E-mail:
| | - Elena Angulo
- Estación Biológica de Doñana, CSIC, Sevilla, Spain
- Laboratoire Écologie, Systématique, Évolution, Université Paris-Saclay, Orsay Cedex, France
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Bujan J, Yanoviak SP. Behavioral response to heat stress of twig-nesting canopy ants. Oecologia 2022; 198:947-955. [PMID: 35254505 PMCID: PMC9056446 DOI: 10.1007/s00442-022-05143-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2021] [Accepted: 02/23/2022] [Indexed: 11/17/2022]
Abstract
Tropical forests experience a relatively stable climate, but are not thermally uniform. The tropical forest canopy is hotter and thermally more variable than the understory. Heat stress in the canopy is expected to increase with global warming, potentially threatening its inhabitants. Here, we assess the impact of heating on the most abundant tropical canopy arthropods—ants. While foragers can escape hot branches, brood and workers inside twig nests might be unable to avoid heat stress. We examined nest choice and absconding behavior—nest evacuation in response to heat stress—of four common twig-nesting ant genera. We found that genera nesting almost exclusively in the canopy occupy smaller cavities compared to Camponotus and Crematogaster that nest across all forest strata. Crematogaster ants absconded at the lowest temperatures in heating experiments with both natural and artificial nests. Cephalotes workers were overall less likely to abscond from their nests. This is the first test of behavioral thermoregulation in tropical forest canopy ants, and it highlights different strategies and sensitivities to heat stress. Behavioral avoidance is the first line of defense against heat stress and will be crucial for small ectotherms facing increasing regional and local temperatures.
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11
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Nascimento G, Câmara T, Arnan X. Critical thermal limits in ants and their implications under climate change. Biol Rev Camb Philos Soc 2022; 97:1287-1305. [PMID: 35174946 DOI: 10.1111/brv.12843] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Revised: 02/07/2022] [Accepted: 02/09/2022] [Indexed: 11/28/2022]
Abstract
Critical thermal limits (CTLs) constrain the performance of organisms, shaping their abundance, current distributions, and future distributions. Consequently, CTLs may also determine the quality of ecosystem services as well as organismal and ecosystem vulnerability to climate change. As some of the most ubiquitous animals in terrestrial ecosystems, ants are important members of ecological communities. In recent years, an increasing body of research has explored ant physiological thermal limits. However, these CTL data tend to centre on a few species and biogeographical regions. To encourage an expansion of perspectives, we herein review the factors that determine ant CTLs and examine their effects on present and future species distributions and ecosystem processes. Special emphasis is placed on the implications of CTLs for safeguarding ant diversity and ant-mediated ecosystem services in the future. First, we compile, quantify, and categorise studies on ant CTLs based on study taxon, biogeographical region, methodology, and study question. Second, we use this comprehensive database to analyse the abiotic and biotic factors shaping ant CTLs. Our results highlight how CTLs may affect future distribution patterns and ecological performance in ants. Additionally, we identify the greatest remaining gaps in knowledge and create a research roadmap to promote rapid advances in this field of study.
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Affiliation(s)
- Geraldo Nascimento
- Universidade de Pernambuco - Campus Garanhuns, Rua Capitão Pedro Rodrigues, 105 - São José, Garanhuns, 55294-902, Brazil.,Programa de Pós-Graduação em Ciência e Tecnologia Ambiental, Universidade de Pernambuco - Campus Petrolina, BR 203, KM 2 - Vila Eduardo, Petrolina, 56328-900, Brazil
| | - Talita Câmara
- Universidade de Pernambuco - Campus Garanhuns, Rua Capitão Pedro Rodrigues, 105 - São José, Garanhuns, 55294-902, Brazil.,Programa de Pós-Graduação em Ciência e Tecnologia Ambiental, Universidade de Pernambuco - Campus Petrolina, BR 203, KM 2 - Vila Eduardo, Petrolina, 56328-900, Brazil
| | - Xavier Arnan
- Universidade de Pernambuco - Campus Garanhuns, Rua Capitão Pedro Rodrigues, 105 - São José, Garanhuns, 55294-902, Brazil.,Programa de Pós-Graduação em Ciência e Tecnologia Ambiental, Universidade de Pernambuco - Campus Petrolina, BR 203, KM 2 - Vila Eduardo, Petrolina, 56328-900, Brazil.,CREAF, Campus de Bellaterra (UAB) Edifici C, Cerdanyola del Vallès, 08193, Spain
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12
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Dissimilar use of an external heat source for thermoregulation by shrews from different geographic regions. J Therm Biol 2022; 104:103193. [DOI: 10.1016/j.jtherbio.2022.103193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Revised: 01/19/2022] [Accepted: 01/21/2022] [Indexed: 11/18/2022]
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13
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Lach L. Invasive ant establishment, spread, and management with changing climate. CURRENT OPINION IN INSECT SCIENCE 2021; 47:119-124. [PMID: 34252591 DOI: 10.1016/j.cois.2021.06.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 06/24/2021] [Accepted: 06/29/2021] [Indexed: 06/13/2023]
Abstract
Ant invasions and climate change both pose globally widespread threats to the environment and economy. I highlight our current knowledge of how climate change will affect invasive ant distributions, population growth, spread, impact, and invasive ant management. Invasive ants often have traits that enable rapid colony growth in a range of habitats. Consequently, many invasive ant species will continue to have large global distributions as environmental conditions change. Distributions and impacts at community scales will depend on how resident ant communities respond to local abiotic conditions as well as availability of plant-based carbohydrate resources. Though target species may change under an altered climate, invasive ant impacts are unlikely to diminish, and novel control methods will be necessary.
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Affiliation(s)
- Lori Lach
- James Cook University, College of Science and Engineering, PO Box 6811, Cairns, 4870 Australia.
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14
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Ślipiński P, Trigos-Peral G, Maák I, Wojciechowska I, Witek M. The influence of age and development temperature on the temperature-related foraging risk of Formica cinerea ants. Behav Ecol Sociobiol 2021. [DOI: 10.1007/s00265-021-03029-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
Abstract
Climate change and the subsequent increase of global temperature are the most current and important threats to biodiversity. Despite the importance of temperature, our knowledge about the level of behavioural and physiological adaptations of ant species from temperate regions to cope with high temperatures is limited compared to the broad knowledge of typical thermal specialists from warmer regions. In the current study, we investigated the temperature-related foraging risk of xerothermic ant species from the temperate climate in Europe, Formica cinerea. Our aims were to check how an increase in external soil temperature affects the foraging activity of workers and how the temperature during development and worker age affects foraging activity in high temperatures. Based on our results, we can draw the following conclusions: (1) the majority of workers utilize a risk-aversive strategy in relation to foraging in high surface temperatures; (2) pupal development temperature affects the risk taken by adult workers: workers that developed in a higher temperature forage more often but for shorter intervals compared to workers that developed in a lower temperature; (3) age is an important factor in temperature-related foraging activity, as with increasing age, workers forage significantly longer at the highest temperatures. Our study is one of the first to assess the potential factors that can affect the foraging risk of ants from a temperate climate in high ambient temperatures.
Significance statement
Our study is the first direct test of workers' age and the development temperature of pupae on the thermal-related foraging strategy of adult F. cinerea workers. It shows that worker age and the development temperature of pupae interact to promote tolerance of thermal stress. We found that with increasing age, workers are prone to forage significantly longer at the highest and riskiest temperatures. Workers that developed in the high temperature (28°C) foraged more often but for shorter intervals compared to workers that developed in the lower temperature (20°C). Interestingly, the factor of age is more significant for ants that developed in the higher temperature of 28°C; the foraging time of these ants significantly increased with their age.
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Leahy L, Scheffers BR, Andersen AN, Hirsch BT, Williams SE. Vertical niche and elevation range size in tropical ants: Implications for climate resilience. DIVERS DISTRIB 2020. [DOI: 10.1111/ddi.13210] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Affiliation(s)
- Lily Leahy
- Centre for Tropical Environmental and Sustainability Science College of Science & Engineering James Cook University Townsville Qld Australia
| | - Brett R. Scheffers
- Department of Wildlife Ecology and Conservation University of Florida Gainesville FL USA
| | - Alan N. Andersen
- Research Institute for the Environment and Livelihoods Charles Darwin University Casuarina NT Australia
| | - Ben T. Hirsch
- Centre for Tropical Environmental and Sustainability Science College of Science & Engineering James Cook University Townsville Qld Australia
| | - Stephen E. Williams
- Centre for Tropical Environmental and Sustainability Science College of Science & Engineering James Cook University Townsville Qld Australia
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