Search Results - "De Casenave, J. Lopez"

Diet of two sympatric Pheidole spp. ants in the central Monte desert: implications for seed-granivore interactions by Pirk, G. I, di Pasquo, F, Lopez de Casenave, J

“…Ants of the genus Pheidole are important seed consumers in several desert ecosystems. In South American deserts, although several Pheidole spp. have been…”
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Diet and seed removal rates by the harvester ants Pogonomyrmex rastratus and Pogonomyrmex pronotalis in the central monte desert, Argentina by PIRK, G. I, LOPEZ DE CASENAVE, J

“…Granivorous animals, through seed consumption, may have an important influence on plant abundance, distribution and species composition in desert ecosystems…”
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Components of woody plant diversity in semi-arid Chaco forests with heterogeneous land use and disturbance histories by Tálamo, A., de Casenave, J. Lopez, Caziani, S.M.

“…We assessed components of woody plant diversity within and between 16 sites dispersed across the nearly 200,000 ha of the Semi-arid Chaco vegetation of the…”
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Forager abundance and its relationship with colony activity level in three species of South American Pogonomyrmex harvester ants by Nobua-Behrmann, B. E., Lopez de Casenave, J., Milesi, F. A., Pavan, B.

“…The proportion of foragers in ant colonies is a fairly constant species-specific characteristic that could be determined by intrinsic or extrinsic factors. If…”
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Polyandry in two South American harvester ants by Pol, R. G, de Casenave, J. Lopez, Feldhaar, H, Milesi, F. A, Gadau, J

“…Although monandry (single mating) is the ancestral state in social hymenopteran insects, effective mating frequencies greater than 2 have been confirmed for a…”
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Granivore Impact on Soil-Seed Reserves in the Central Monte Desert, Argentina by Marone, L., Rossi, B. E., De Casenave, J. Lopez

“…1. Mechanisms of grass- and forb-seed input and output in the central Monte desert of Argentina were studied in 1995 to test the hypothesis that seed…”
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Seasonal dynamics of guild structure in a bird assemblage of the central Monte desert by Lopez de Casenave, Javier, Cueto, Víctor R., Marone, Luis

“…Most studies of ecological guilds consider guild membership as a fixed attribute of species, and the guild structure as a fixed attribute of a community…”
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Evaluation of Three Techniques for the Study of Harvester Ant (Pogonomyrmex spp.) Diet by Pirk, G. I., Lopez de Casenave, J., Marone, L.

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Activity patterns of harvester ants Pogonomyrmex pronotalis and Pogonomyrmex rastratus in the central Monte Desert, Argentina by Pol, R, Lopez de Casenave, J

“…Seed-eating ants could have a significant effect on plant communities in deserts and semiarid zones. This effect is mediated through spatial and temporal…”
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Evaluation of Three Techniques for the Study of Harvester Ant (Pogonomyrmex spp.) Diet by Pirk, Gabriela Inés, Lopez de Casenave, Javier, Marone, Luis

“…The estimation of an ant’s diet is crucial in many ecological studies. Different techniques, which involve different assumptions and field procedures, have…”
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Edge-interior differences in vegetation structure and composition in a Chaco semi-arid forest, Argentina by de Casenave, Javier Lopez, Pelotto, Juan Pablo, Protomastro, Jorge

“…The differences in species composition and horizontal and vertical vegetation structure between a natural forest edge and the adjacent forest interior were…”
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Responses of Avian Assemblages to a Natural Edge in a Chaco Semiarid Forest in Argentina by de Casenave, Javier Lopez, Juan Pablo Pelotto, Caziani, Sandra M., Myriam Mermoz, Jorge Protomastro

“…We assessed differences in breeding bird assemblages and vegetation structure between a natural forest edge and the adjacent forest interior in an old-growth…”
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Seasonal changes in bird assemblages of coastal woodlands in east-central Argentina by Cueto, Victor R., Lopez de Casenave, Javier

“…We studied seasonal variation in bird assemblages during two years in the coastal woodlands of the reserve, 'El Destino', Buenos Aires Province, Argentina…”
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Granivory in the Monte Desert, Argentina: Is it Less Intense than in Other Arid Zones of the World? by de Casenave, Javier Lopez, Cueto, Victor R., Marone, Luis

“…In 1978, Mares and Rosenzweig assessed seed removal rates by granivores at a site in the northern Monte desert of Argentina, and concluded that granivory in…”
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Determinants of bird species richness: role of climate and vegetation structure at a regional scale by Cueto, Victor R., de Casenave, Javier Lopez

“…We examined the respective roles of climate and vegetation structure on geographical variation in bird species richness. The Province of Buenos Aires…”
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Foraging Behavior And Microhabitat Use Of Birds Inhabiting Coastal Woodlands In Eastcentral Argentina by Cueto, V R, Lopez de Casenave, J

“…We examined foraging behavior and microhabitat use of four passerine bird species inhabiting an old growth coastal woodland in Buenos Aires Province,…”
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BIRD ASSEMBLAGES OF PROTECTED AND EXPLOITED COASTAL WOODLANDS IN EAST-CENTRAL ARGENTINA by Cueto, Victor R, Lopez De Casenave, Javier

“…We surveyed vegetation and bird assemblages in protected and exploited woodlands in the warm temperate, coastal woodlands of Buenos Aires Province, Argentina…”
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