Diet of two sympatric Pheidole spp. ants in the central Monte desert: Implications for seed-granivore interactions
Ants of the genus Pheidole are important seed consumers in several desert ecosystems. In South American deserts, although several Pheidole spp. have been characterized as seed harvesters, studies on their diet and ecological role are still missing. Pheidole spininodis (Mayr) and Pheidole bergi (Mayr...
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2009
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| LEADER | 11636caa a22010817a 4500 | ||
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| 001 | PAPER-8690 | ||
| 003 | AR-BaUEN | ||
| 005 | 20230518203830.0 | ||
| 008 | 190411s2009 xx ||||fo|||| 00| 0 eng|d | ||
| 024 | 7 | |2 scopus |a 2-s2.0-76049089682 | |
| 040 | |a Scopus |b spa |c AR-BaUEN |d AR-BaUEN | ||
| 030 | |a INSOA | ||
| 100 | 1 | |a Pirk, G.I. | |
| 245 | 1 | 0 | |a Diet of two sympatric Pheidole spp. ants in the central Monte desert: Implications for seed-granivore interactions |
| 260 | |c 2009 | ||
| 270 | 1 | 0 | |m Pirk, G. I.; Laboratorio Ecotono, INIBIOMA, CONICET-Universidad Nacional del Comahue, Pasaje Gutiérrez 1125, 8400 San Carlos de Bariloche, Río Negro, Argentina; email: pirk@crub.uncoma.edu.ar |
| 506 | |2 openaire |e Política editorial | ||
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| 504 | |a Pirk, G.I., (2007) Granivoría por hormigas del género Pogonomyrmex en el Monte central: Consumo de semillas e impacto sobre el banco de suelo, , Ph. D. thesis. Universidad de Buenos Aires, Buenos Aires, Argentina | ||
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| 504 | |a Whitford, W.G., Depree, D.J., Hamilton, P., Ettershank, G., Foraging ecology of seed-harvesting ants, Pheidole spp. in a Chihuahuan desert ecosystem (1981) Am. Midl. Nat., 105, pp. 159-167 | ||
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| 520 | 3 | |a Ants of the genus Pheidole are important seed consumers in several desert ecosystems. In South American deserts, although several Pheidole spp. have been characterized as seed harvesters, studies on their diet and ecological role are still missing. Pheidole spininodis (Mayr) and Pheidole bergi (Mayr) are capable of removing seeds in the central Monte desert. The aim of this study was to quantify and compare the diet of these species and to interpret the results in the context of seed-granivore interactions. Diet was estimated during mid-summer by collecting items brought back to the nest by foragers in ten colonies per species. While P. spininodis was mainly granivorous, P. bergi was mainly insectivorous. However, they both collected ~40% of other types of items. Among seeds, the diet of P. spininodis included mostly grass seeds, whereas the diet of P. bergi was mainly made up of shrub and tree seeds, usually retrieved cooperatively. This behavior allowed P. bergi to carry larger seeds, resulting in diet partitioning in terms of seed size. However, diet of P. spininodis is very similar to that of three sympatric Pogonomyrmex species. Thus, specialized harvester ants remove large quantities of grass seeds in the central Monte desert during the summer, potentially affecting their abundance in the soil seed bank. P. bergi directs its feeding pressure to shrub and tree seeds, and although seeds constitute ~10% of its diet, its high colony density and high activity levels, added to the lower proportion of large seeds in the soil seed bank, indicate that their importance as seed consumers cannot be ruled out. © Birkhäuser Verlag, Basel/Switzerland 2009. |l eng | |
| 536 | |a Detalles de la financiación: PICT 01-12199 | ||
| 536 | |a Detalles de la financiación: Universidad de Buenos Aires, UBACyT X/120 | ||
| 536 | |a Detalles de la financiación: Consejo Nacional de Investigaciones Científicas y Técnicas | ||
| 536 | |a Detalles de la financiación: Acknowledgments We thank Paula Fergnani for critical comments on previous versions of the manuscript and for her valuable help. Financial support was supplied by CONICET, ANPCyT of Argentina, ultimately through PICT 01-12199, and Universidad de Buenos Aires, ultimately through UBACyT X/120. This is contribution number 64 of the Desert Community Ecology Research Team (Ecodes) of IADIZA Institute (CONICET) and FCEyN (Universidad de Buenos Aires). | ||
| 593 | |a Laboratorio Ecotono, INIBIOMA, CONICET-Universidad Nacional del Comahue, Pasaje Gutiérrez 1125, 8400 San Carlos de Bariloche, Río Negro, Argentina | ||
| 593 | |a Grupo de Investigación en Ecología de Comunidades de Desierto (ECODES), Departamento de Ecología, Genética y Evolución, FCEyN, Universidad de Buenos Aires, Buenos Aires, Argentina | ||
| 690 | 1 | 0 | |a COOPERATIVE RETRIEVAL |
| 690 | 1 | 0 | |a DESERT COMMUNITIES |
| 690 | 1 | 0 | |a GRANIVORY |
| 690 | 1 | 0 | |a PHEIDOLE BERGI |
| 690 | 1 | 0 | |a PHEIDOLE SPININODIS |
| 690 | 1 | 0 | |a TROPHIC ECOLOGY |
| 690 | 1 | 0 | |a ABUNDANCE |
| 690 | 1 | 0 | |a ANT |
| 690 | 1 | 0 | |a DESERT |
| 690 | 1 | 0 | |a DIET |
| 690 | 1 | 0 | |a GRANIVORY |
| 690 | 1 | 0 | |a PLANT-HERBIVORE INTERACTION |
| 690 | 1 | 0 | |a SEED BANK |
| 690 | 1 | 0 | |a SYMPATRY |
| 690 | 1 | 0 | |a MONTE DESERT |
| 690 | 1 | 0 | |a FORMICIDAE |
| 690 | 1 | 0 | |a PHEIDOLE |
| 690 | 1 | 0 | |a PHEIDOLE BERGI |
| 690 | 1 | 0 | |a PHEIDOLE SPININODIS |
| 690 | 1 | 0 | |a POGONOMYRMEX |
| 651 | 4 | |a ARGENTINA | |
| 651 | 4 | |a MENDOZA | |
| 700 | 1 | |a di Pasquo, F. | |
| 700 | 1 | |a de Casenave, J.L. | |
| 773 | 0 | |d 2009 |g v. 56 |h pp. 277-283 |k n. 3 |p Insectes Sociaux |x 00201812 |t Insectes Sociaux | |
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