TY - JOUR
T1 - Age-dependent walking and feeding of the assassin bug Amphibolus venator
AU - Matsumura, Kentarou
AU - Iwaya, Mana
AU - Nagaya, Naohisa
AU - Fujisawa, Ryusuke
AU - Miyatake, Takahisa
N1 - Funding Information:
We thank to Prof. David Punzalan and an anonymous reviewer for useful comments to this manuscript. We thank to Mr. Masaya Asakura and Mr. Shintaro Tanabe for rearing A. venator in the laboratory and advice on data analysis, respectively. This work was supported by a grant from the Japan Society for the Promotion of Science KAKENHI 17H05976 and 18H02510 to TM.
Publisher Copyright:
© Koninklijke Brill NV, leiden, 2021.
PY - 2021
Y1 - 2021
N2 - 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.
AB - 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.
KW - Age-dependent
KW - Amphibolus venator
KW - Food intake
KW - Sit-and-wait predator
KW - Walking
UR - http://www.scopus.com/inward/record.url?scp=85100596648&partnerID=8YFLogxK
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U2 - 10.1163/1568539X-bja10060
DO - 10.1163/1568539X-bja10060
M3 - Article
AN - SCOPUS:85100596648
SN - 0005-7959
VL - 158
SP - 123
EP - 133
JO - Behaviour
JF - Behaviour
IS - 2
ER -