Lack of aggression and avoidance between vicuña and guanaco herds grazing in the same andean habitat
| Autor: | Diego Enrique Birochio, Mauro Lucherini |
|---|---|
| Rok vydání: | 1997 |
| Předmět: |
Forage (honey bee)
biology Aggression Ecology media_common.quotation_subject Interspecific competition biology.organism_classification Competition (biology) Geography Habitat Grazing medicine Animal Science and Zoology medicine.symptom Vicugna Ecology Evolution Behavior and Systematics Food competition media_common |
| Zdroj: | Studies on Neotropical Fauna and Environment. 32:72-75 |
| ISSN: | 1744-5140 0165-0521 |
| Popis: | The occurrence of aggression and avoidance between grazing herds of guanacos (Lama guanicoe) and vicunas (Vicugna vicugna) was analysed at high altitudes in the Argentinean Andes. Since a large part of the groups of both species was sighted in stream proximity where forage is available, inter‐specific competition for food was assumed to occur in these small patches. However, aggressive interactions between groups of different species were rarely observed. While the interspecific group distance was frequently low, conspecific herds were rarely sighted less than 40 m apart. Usually, the nearest neighbour distance was smaller between than within species. In the study area and during summer, there was no evidence of food competition between guanacos and vicunas. |
| Databáze: | OpenAIRE |
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