Mobbing-like behavior by pilot whales towards killer whales: a response to resource competition or perceived predation risk?

Verfasser / Beitragende:
[R. De Stephanis, J. Giménez, R. Esteban, P. Gauffier, S. García-Tiscar, M-H. Sinding, P. Verborgh]
Ort, Verlag, Jahr:
2015
Enthalten in:
acta ethologica, 18/1(2015-02-01), 69-78
Format:
Artikel (online)
ID: 605462399
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024 7 0 |a 10.1007/s10211-014-0189-1  |2 doi 
035 |a (NATIONALLICENCE)springer-10.1007/s10211-014-0189-1 
245 0 0 |a Mobbing-like behavior by pilot whales towards killer whales: a response to resource competition or perceived predation risk?  |h [Elektronische Daten]  |c [R. De Stephanis, J. Giménez, R. Esteban, P. Gauffier, S. García-Tiscar, M-H. Sinding, P. Verborgh] 
520 3 |a Interspecific interactions can be based on positive or negative outcome. Within antagonist interactions, predation refers to a predator attacking and feeding on a prey while competition is an interaction where individuals compete for a common resource. Worldwide distributions of long-finned pilot whales and killer whales rarely overlap, and they are not known to feed on the same preys. However, in this study, we described the interactions between long-finned pilot whales and killer whales in the Strait of Gibraltar. The former was seen pursuing away the latter in all observations. The main hypotheses for the cause of these interactions are predation or competition. To test both hypotheses, movement patterns and isotopic niches of both species were investigated in the Strait of Gibraltar through satellite tagging and stable isotopes, respectively. Satellite tracks showed no overlap between one tagged pilot whale and one tagged killer whaler's distributions during 21days. Similarly, Euclidian distances between centroids of Bayesian standard ellipse areas of carbon and nitrogen stable isotopes were significantly different from zero, showing different isotopic niches for each species. This shows that no competition for the resources should exist between both species in the Strait of Gibraltar and that they do not feed on each other, suggesting that the interactions would not be related to predation. A possible historical presence of marine mammal-eating killer whales in the area, today disappeared, could explain the antipredator defense mobbing-like behavior of pilot whales observed in the Strait. 
540 |a Springer-Verlag Berlin Heidelberg and ISPA, 2014 
690 7 |a Isotopic niche  |2 nationallicence 
690 7 |a Telemetry  |2 nationallicence 
690 7 |a Long-finned pilot whale  |2 nationallicence 
690 7 |a Killer whale  |2 nationallicence 
690 7 |a Interspecific competition  |2 nationallicence 
690 7 |a Predation  |2 nationallicence 
690 7 |a Strait of Gibraltar  |2 nationallicence 
700 1 |a De Stephanis  |D R.  |u Grupo de Ecología Marina Aplicada (GEMA), Estación Biológica de Doñana (CSIC), C/Americo Vespucio, s/n, 41092, Sevilla, Isla de la Cartuja, Spain  |4 aut 
700 1 |a Giménez  |D J.  |u Grupo de Ecología Marina Aplicada (GEMA), Estación Biológica de Doñana (CSIC), C/Americo Vespucio, s/n, 41092, Sevilla, Isla de la Cartuja, Spain  |4 aut 
700 1 |a Esteban  |D R.  |u CIRCE (Conservation, Information and Research on Cetaceans), Cabeza de Manzaneda 3, Pelayo, 11390, Algeciras, Cadiz, Spain  |4 aut 
700 1 |a Gauffier  |D P.  |u CIRCE (Conservation, Information and Research on Cetaceans), Cabeza de Manzaneda 3, Pelayo, 11390, Algeciras, Cadiz, Spain  |4 aut 
700 1 |a García-Tiscar  |D S.  |u Department of Ecology, Universidad Autónoma de Madrid, Madrid, Spain  |4 aut 
700 1 |a Sinding  |D M-H  |u Centre for GeoGenetics, The Natural History Museum of Denmark, Øster Voldgade 5-7, 1350, Copenhagen, Denmark  |4 aut 
700 1 |a Verborgh  |D P.  |u CIRCE (Conservation, Information and Research on Cetaceans), Cabeza de Manzaneda 3, Pelayo, 11390, Algeciras, Cadiz, Spain  |4 aut 
773 0 |t acta ethologica  |d Springer Berlin Heidelberg  |g 18/1(2015-02-01), 69-78  |x 0873-9749  |q 18:1<69  |1 2015  |2 18  |o 10211 
856 4 0 |u https://doi.org/10.1007/s10211-014-0189-1  |q text/html  |z Onlinezugriff via DOI 
898 |a BK010053  |b XK010053  |c XK010000 
900 7 |a Metadata rights reserved  |b Springer special CC-BY-NC licence  |2 nationallicence 
908 |D 1  |a research-article  |2 jats 
949 |B NATIONALLICENCE  |F NATIONALLICENCE  |b NL-springer 
950 |B NATIONALLICENCE  |P 856  |E 40  |u https://doi.org/10.1007/s10211-014-0189-1  |q text/html  |z Onlinezugriff via DOI 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a De Stephanis  |D R.  |u Grupo de Ecología Marina Aplicada (GEMA), Estación Biológica de Doñana (CSIC), C/Americo Vespucio, s/n, 41092, Sevilla, Isla de la Cartuja, Spain  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Giménez  |D J.  |u Grupo de Ecología Marina Aplicada (GEMA), Estación Biológica de Doñana (CSIC), C/Americo Vespucio, s/n, 41092, Sevilla, Isla de la Cartuja, Spain  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Esteban  |D R.  |u CIRCE (Conservation, Information and Research on Cetaceans), Cabeza de Manzaneda 3, Pelayo, 11390, Algeciras, Cadiz, Spain  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Gauffier  |D P.  |u CIRCE (Conservation, Information and Research on Cetaceans), Cabeza de Manzaneda 3, Pelayo, 11390, Algeciras, Cadiz, Spain  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a García-Tiscar  |D S.  |u Department of Ecology, Universidad Autónoma de Madrid, Madrid, Spain  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Sinding  |D M-H  |u Centre for GeoGenetics, The Natural History Museum of Denmark, Øster Voldgade 5-7, 1350, Copenhagen, Denmark  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Verborgh  |D P.  |u CIRCE (Conservation, Information and Research on Cetaceans), Cabeza de Manzaneda 3, Pelayo, 11390, Algeciras, Cadiz, Spain  |4 aut 
950 |B NATIONALLICENCE  |P 773  |E 0-  |t acta ethologica  |d Springer Berlin Heidelberg  |g 18/1(2015-02-01), 69-78  |x 0873-9749  |q 18:1<69  |1 2015  |2 18  |o 10211