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Vasilieva NA. Pace-of-Life Syndrome (POLS): Evolution of the Concept. BIOL BULL+ 2022. [DOI: 10.1134/s1062359022070238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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Matsumura K, Miyatake T. Effects of individual differences in the locomotor activity of assassin bugs on predator–prey interactions. Ethology 2022. [DOI: 10.1111/eth.13272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Affiliation(s)
| | - Takahisa Miyatake
- Graduate School of Environmental and Life Science Okayama University Okayama Japan
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Matsumura K, Iwaya M, Nagaya N, Fujisawa R, Miyatake T. Age-dependent walking and feeding of the assassin bug Amphibolus venator. BEHAVIOUR 2021. [DOI: 10.1163/1568539x-bja10060] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Abstract
Animal behaviours often dependent on age. In many insect species, walking shows an age-dependent decline, and food intake may also be dependent on age. However, few studies have investigated the relationship between age and walking or food intake. In the present study, we compared walking traits and food intake among individuals of different ages in the assassin bug Amphibolus venator (Hemiptera, Reduviidae). The present results showed an age-dependent decline in walking, similar to findings in many animal species. On the other hand, food intake showed a positive correlation with age. Therefore, the decline in walking did not lead to a decline in feeding. The positive relationship between food intake and age may be related to the type of predation, sit-and-wait, used by A. venator via alterations in investment in reproductive traits with age.
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Affiliation(s)
- Kentarou Matsumura
- aGraduate School of Environmental and Life Science, Okayama University, 1-1-1 Tsushimanaka, Kita-ku, Okayama, 700-8530, Japan
| | - Mana Iwaya
- bFaculty of Agriculture, Okayama University, 1-1-1, Tsushima-Naka, Kita-ku, Okayama 700-8530, Japan
| | - Naohisa Nagaya
- cKyoto Sangyo University, Kamigamo Motoyama, Kita-ku, Kyoto, 603-8555, Japan
| | - Ryusuke Fujisawa
- dKyushu Institute of Technology, 680-4, Kawazu, Iizuka, Fukuoka, 820-8502, Japan
| | - Takahisa Miyatake
- aGraduate School of Environmental and Life Science, Okayama University, 1-1-1 Tsushimanaka, Kita-ku, Okayama, 700-8530, Japan
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Thoré ESJ, Grégoir AF, Adriaenssens B, Philippe C, Stoks R, Brendonck L, Pinceel T. Population-, sex- and individual level divergence in life-history and activity patterns in an annual killifish. PeerJ 2019; 7:e7177. [PMID: 31293828 PMCID: PMC6599669 DOI: 10.7717/peerj.7177] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2019] [Accepted: 05/22/2019] [Indexed: 12/18/2022] Open
Abstract
Variation in life-history strategies along a slow-fast continuum is largely governed by life-history trade-offs. The pace-of-life syndrome hypothesis (POLS) expands on this idea and suggests coevolution of these traits with personality and physiology at different levels of biological organization. However, it remains unclear to what extent covariation at different levels aligns and if also behavioral patterns such as diurnal activity changes should be incorporated. Here, we investigate variation in life-history traits as well as behavioral variation at the individual, sex and population level in the Turquoise killifish Nothobranchius furzeri. We performed a common garden laboratory experiment with four populations that differ in pond permanence and scored life-history and behavioral (co-) variation at the individual and population level for both males and females. In addition, we focused on diurnal activity change as a behavioral trait that remains understudied in ecology. Our results demonstrate sex-specific variation in adult body size and diurnal activity change among populations that originate from ponds with differences in permanence. However, there was no pond permanence-dependent divergence in maturation time, juvenile growth rate, fecundity and average activity level. With regard to behavior, individuals differed consistently in locomotor activity and diurnal activity change while, in contrast with POLS predictions, we found no indications for life-history and behavioral covariation at any level. Overall, this study illustrates that diurnal activity change differs consistently between individuals, sexes and populations although this variation does not appear to match POLS predictions.
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Affiliation(s)
- Eli S J Thoré
- Animal Ecology, Global Change and Sustainable Development, KU Leuven, Leuven, Belgium
| | - Arnout F Grégoir
- Animal Ecology, Global Change and Sustainable Development, KU Leuven, Leuven, Belgium
| | - Bart Adriaenssens
- Institute of Biodiversity, Animal Health and Comparative Medicine, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, United Kingdom
| | - Charlotte Philippe
- Animal Ecology, Global Change and Sustainable Development, KU Leuven, Leuven, Belgium.,Systemic Physiological and Ecotoxicological Research, University of Antwerp, Antwerp, Belgium
| | - Robby Stoks
- Evolutionary Stress Ecology and Ecotoxicology, KU Leuven, Leuven, Belgium
| | - Luc Brendonck
- Animal Ecology, Global Change and Sustainable Development, KU Leuven, Leuven, Belgium.,Water Research Group, Unit for Environmental Sciences and Management, North-West University, Potchefstroom, South Africa
| | - Tom Pinceel
- Animal Ecology, Global Change and Sustainable Development, KU Leuven, Leuven, Belgium.,Centre for Environmental Management, University of the Free State, Bloemfontein, South Africa
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