Locomotor activity of Phalerisida maculata Kulzer (Coleoptera, Tenebrionidae) on Chilean sandy beaches
The locomotor activity of the beetle Phalerisida maculata Kulzer (Coleoptera Tenebrionidae) was studied on the surface of the substrate in two sandy beaches of the Chilean coast: one in north central (ca. 29ºS) and the other in south central Chile (ca.39ºS). During the summer period of 1991 the circ...
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Sociedad de Biología de Chile
2000
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oai:scielo:S0716-078X20000001000082001-10-08Locomotor activity of Phalerisida maculata Kulzer (Coleoptera, Tenebrionidae) on Chilean sandy beachesJARAMILLO,EDUARDOAVELLANAL,MARIA HGONZALEZ,MARCIAKENNEDY,FERGUS sandy beaches Insecta Coleoptera locomotor activity The locomotor activity of the beetle Phalerisida maculata Kulzer (Coleoptera Tenebrionidae) was studied on the surface of the substrate in two sandy beaches of the Chilean coast: one in north central (ca. 29ºS) and the other in south central Chile (ca.39ºS). During the summer period of 1991 the circadian locomotor activity was studied in the southern beach, while during that of 1997 in both beaches. To analyze the activity, pitfall traps were used which were ordered along two transects extended between the upper beach and the resurgence zone. The traps were checked (i.e. collection of captured insects) every two hours for a total period of 26 hours. The results showed that the adults of P. maculata were mostly active during the night hours, whereas the larvae were active during both, the day and night. Studies carried out in the beach located in south central Chile show that differences in the tidal range (neap vs. spring tides) do not affect the activity patterns. During the locomotor activity, adult and larvae move to lower intertidal levels than those usually occupied while buried. Results of laboratory experiments using actographs under conditions of darkness and constant temperature, suggest that adults and larvae of P. maculata presented a circadian rhythm similar to that observed in the field experiments. It is concluded that P. maculata presents a behaviour that appear to be under control of an endogenous rhythm, without showing differences in the circadian rhythm of activity when beaches located at different latitudes are comparedinfo:eu-repo/semantics/openAccessSociedad de Biología de ChileRevista chilena de historia natural v.73 n.1 20002000-03-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2000000100008en10.4067/S0716-078X2000000100008 |
institution |
Scielo Chile |
collection |
Scielo Chile |
language |
English |
topic |
sandy beaches Insecta Coleoptera locomotor activity |
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sandy beaches Insecta Coleoptera locomotor activity JARAMILLO,EDUARDO AVELLANAL,MARIA H GONZALEZ,MARCIA KENNEDY,FERGUS Locomotor activity of Phalerisida maculata Kulzer (Coleoptera, Tenebrionidae) on Chilean sandy beaches |
description |
The locomotor activity of the beetle Phalerisida maculata Kulzer (Coleoptera Tenebrionidae) was studied on the surface of the substrate in two sandy beaches of the Chilean coast: one in north central (ca. 29ºS) and the other in south central Chile (ca.39ºS). During the summer period of 1991 the circadian locomotor activity was studied in the southern beach, while during that of 1997 in both beaches. To analyze the activity, pitfall traps were used which were ordered along two transects extended between the upper beach and the resurgence zone. The traps were checked (i.e. collection of captured insects) every two hours for a total period of 26 hours. The results showed that the adults of P. maculata were mostly active during the night hours, whereas the larvae were active during both, the day and night. Studies carried out in the beach located in south central Chile show that differences in the tidal range (neap vs. spring tides) do not affect the activity patterns. During the locomotor activity, adult and larvae move to lower intertidal levels than those usually occupied while buried. Results of laboratory experiments using actographs under conditions of darkness and constant temperature, suggest that adults and larvae of P. maculata presented a circadian rhythm similar to that observed in the field experiments. It is concluded that P. maculata presents a behaviour that appear to be under control of an endogenous rhythm, without showing differences in the circadian rhythm of activity when beaches located at different latitudes are compared |
author |
JARAMILLO,EDUARDO AVELLANAL,MARIA H GONZALEZ,MARCIA KENNEDY,FERGUS |
author_facet |
JARAMILLO,EDUARDO AVELLANAL,MARIA H GONZALEZ,MARCIA KENNEDY,FERGUS |
author_sort |
JARAMILLO,EDUARDO |
title |
Locomotor activity of Phalerisida maculata Kulzer (Coleoptera, Tenebrionidae) on Chilean sandy beaches |
title_short |
Locomotor activity of Phalerisida maculata Kulzer (Coleoptera, Tenebrionidae) on Chilean sandy beaches |
title_full |
Locomotor activity of Phalerisida maculata Kulzer (Coleoptera, Tenebrionidae) on Chilean sandy beaches |
title_fullStr |
Locomotor activity of Phalerisida maculata Kulzer (Coleoptera, Tenebrionidae) on Chilean sandy beaches |
title_full_unstemmed |
Locomotor activity of Phalerisida maculata Kulzer (Coleoptera, Tenebrionidae) on Chilean sandy beaches |
title_sort |
locomotor activity of phalerisida maculata kulzer (coleoptera, tenebrionidae) on chilean sandy beaches |
publisher |
Sociedad de Biología de Chile |
publishDate |
2000 |
url |
http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2000000100008 |
work_keys_str_mv |
AT jaramilloeduardo locomotoractivityofphalerisidamaculatakulzercoleopteratenebrionidaeonchileansandybeaches AT avellanalmariah locomotoractivityofphalerisidamaculatakulzercoleopteratenebrionidaeonchileansandybeaches AT gonzalezmarcia locomotoractivityofphalerisidamaculatakulzercoleopteratenebrionidaeonchileansandybeaches AT kennedyfergus locomotoractivityofphalerisidamaculatakulzercoleopteratenebrionidaeonchileansandybeaches |
_version_ |
1718439477926428672 |