ArticleMovement ecology2022
Phenological drivers of ungulate migration in South America: characterizing the movement and seasonal habitat use of guanacos.
Article in Movement ecology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- It's time to go-Drivers and plasticity of migration phenology in a short-distance migratory ungulate.The Journal of animal ecology · 2025Article
- On the interface between cultural transmission, phenotypic diversity, demography and the conservation of migratory ungulates.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2025Article
- Toward a comparative framework for studies of altitudinal migration.Ecology and evolution · 2024Article
- Non-invasive assessment of hormonal fluctuations during pregnancy in guanacos (Conservation physiology · 2024Article
- Diverse environmental cues drive the size of reproductive aggregation in a rheophilic fish.Movement ecology · 2023Article
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Authors and funding
3 authors.
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Abstract
backgroundMigration is a widespread strategy among ungulates to cope with seasonality. Phenology, especially in seasonally snow-covered landscapes featuring "white waves" of snow accumulation and "green waves" of plant green-up, is a phenomenon that many migratory ungulates navigate. Guanacos (Lama guanicoe) are native camelids to South America and might be the last ungulate in South America that migrates. However, a detailed description of guanacos´ migratory attributes, including whether they surf or jump phenological waves is lacking.
methodsWe quantified the migratory movements of 21 adult guanacos over three years in Patagonia, Argentina. We analyzed annual movement patterns using net squared displacement (NSD) and home range overlap and quantified snow and vegetation phenology via remotely sensed products.
resultsWe found that 74% of the individual guanacos exhibited altitudinal migrations. For migratory guanacos, we observed fidelity of migratory ranges and residence time, but flexibility around migration propensity, timing, and duration of migration. The scarce vegetation and arid conditions within our study area seemed to prevent guanacos from surfing green waves; instead, guanacos appeared to avoid white waves.
conclusionOur study shows that guanaco elevational migration is driven by a combination of vegetation availability and snow cover, reveals behavioral plasticity of their migration, and highlights the importance of snow phenology as a driver of ungulate migrations.
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