Artículo

Domínguez, M.; Escalante, I.; Carrasco-Rueda, F.; Figuerola-Hernández, C.E.; Marta Ayup, M.; Umaña, M.N.; Ramos, D.; González-Zamora, A.; Brizuela, C.; Delgado, W.; Pacheco-Esquivel, J. "Losing legs and walking hard: Effects of autotomy and different substrates in the locomotion of harvestmen in the genus Prionostemma" (2016) Journal of Arachnology. 44(1):76-82
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Abstract:

Autotomy, the strategy of voluntarily releasing a leg during an encounter with a potential predator or in agonistic interactions between conspecifics, is common in animals. The potential costs of this behavior have been scarcely studied. In addition, locomotion and substrate-dependent performance might be affected by autotomy. We did a comparative and observational study to investigate whether losing legs affects the escape speed and trajectory of harvestmen in the genus Prionostemma Pocock, 1903 (Eupnoi: Sclerosomatidae) on different substrates: soil (the least roughened), smooth bark and mossy bark (the most roughened) in a tropical premontane forest in Costa Rica. We observed that 71% of the individuals found were missing at least one leg. Harvestmen, regardless of leg condition, walked faster and made fewer turns in their trajectory in the soil. While climbing, they were faster on smooth bark than in moss. On all substrates, autotomized individuals were slower and had a more erratic trajectory than intact ones. The type of missing legs (sensory or locomotor) had no influence on the speed or trajectory. We experimentally induced autotomy and found that walking speed on soil decreases if individuals lose a leg. Our findings confirm that losing legs affects locomotion, and we provide novel insights on how locomotion in these harvestmen depends on surface roughness. Our data suggest that moss could be a type of substrate that requires more elaborate skills in balance, orientation and texture recognition than smooth bark. © The American Arachnological Society.

Registro:

Documento: Artículo
Título:Losing legs and walking hard: Effects of autotomy and different substrates in the locomotion of harvestmen in the genus Prionostemma
Autor:Domínguez, M.; Escalante, I.; Carrasco-Rueda, F.; Figuerola-Hernández, C.E.; Marta Ayup, M.; Umaña, M.N.; Ramos, D.; González-Zamora, A.; Brizuela, C.; Delgado, W.; Pacheco-Esquivel, J.
Filiación:Departamento de Ecología, Genética y Evolución and IEGEBA-CONICET, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina
Escuela de Biología, Universidad de Costa Rica, Costa Rica
Center for Conservation Education and Sustainability, Smithsonian Conservation Biology Institute, National Zoological Park, Washington, DC, United States
Biology Department, University of Puerto Rico at Río Piedras, San Juan, Puerto Rico
Instituto de Ecología Regional, Universidad Nacional de Tucumán, Tucumán, Argentina
Department of Plant Biology, Michigan State University, East Lansing, MI, United States
Universidad Laica Eloy Alfaro de Manabí-Manta. Manta, Ecuador, Ecuador
Instituto de Ecología A.C., Xalapa Veracruz, Mexico
Escuela de Ciencias Biológicas, Universidad Nacional, Costa Rica
Museo de Historia Natural de la Universidad Nacional de San Agustín de Arequipa, Peru
Pontificia Universidad Católica Del Ecuador. Pichincha, Ecuador, Ecuador
Department of Environmental Science Policy and Management, University of California, Berkeley, United States
School of Natural Resources and Environment, University of Florida, Gainesville, FL, United States
Instituto de Investigaciones Biológicas, Universidad Veracruzana, Xalapa, Veracruz, Mexico
Palabras clave:Costa Rica; Eupnoi; Opiliones; Sclerosomatidae
Año:2016
Volumen:44
Número:1
Página de inicio:76
Página de fin:82
DOI: http://dx.doi.org/10.1636/J15-08.1
Título revista:Journal of Arachnology
Título revista abreviado:J. Arachnol.
ISSN:01618202
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01618202_v44_n1_p76_Dominguez

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Citas:

---------- APA ----------
Domínguez, M., Escalante, I., Carrasco-Rueda, F., Figuerola-Hernández, C.E., Marta Ayup, M., Umaña, M.N., Ramos, D.,..., Pacheco-Esquivel, J. (2016) . Losing legs and walking hard: Effects of autotomy and different substrates in the locomotion of harvestmen in the genus Prionostemma. Journal of Arachnology, 44(1), 76-82.
http://dx.doi.org/10.1636/J15-08.1
---------- CHICAGO ----------
Domínguez, M., Escalante, I., Carrasco-Rueda, F., Figuerola-Hernández, C.E., Marta Ayup, M., Umaña, M.N., et al. "Losing legs and walking hard: Effects of autotomy and different substrates in the locomotion of harvestmen in the genus Prionostemma" . Journal of Arachnology 44, no. 1 (2016) : 76-82.
http://dx.doi.org/10.1636/J15-08.1
---------- MLA ----------
Domínguez, M., Escalante, I., Carrasco-Rueda, F., Figuerola-Hernández, C.E., Marta Ayup, M., Umaña, M.N., et al. "Losing legs and walking hard: Effects of autotomy and different substrates in the locomotion of harvestmen in the genus Prionostemma" . Journal of Arachnology, vol. 44, no. 1, 2016, pp. 76-82.
http://dx.doi.org/10.1636/J15-08.1
---------- VANCOUVER ----------
Domínguez, M., Escalante, I., Carrasco-Rueda, F., Figuerola-Hernández, C.E., Marta Ayup, M., Umaña, M.N., et al. Losing legs and walking hard: Effects of autotomy and different substrates in the locomotion of harvestmen in the genus Prionostemma. J. Arachnol. 2016;44(1):76-82.
http://dx.doi.org/10.1636/J15-08.1