Different effects of alpine woody plant expansion on domestic and wild ungulates.
- Comparative Study
- Journal Article
- Research Support
- Non-U.S. Gov't
Summary
The study investigates the effects of woody plant growth, a result of changing land use and climates, on wild and domesticated grassland animals, focusing on how these changes impact animals’ feeding efficiency. The research reveals that wild animals are less affected due to their greater diet flexibility, while livestock that primarily feed on grassland plants face significant consequences, posing economic risks to farmers.
Research Objective and Methodology
- The aim of this research was to understand how the expansion of woody plants, also known as ‘shrubification’, impacts herbivore feeding efficiency. The species studied include wild Pyrenean chamois and three domestic ungulate species: cattle, sheep, and horses.
- The researchers used observational diet data collected from May to October and modelled various scenarios of vegetation availability that saw an increase in woodland and shrubland at the expense of grassland. This method was used to predict if the herbivore species could efficiently utilize their food landscapes based on their current dietary habits, measuring their niche breadth in each scenario.
Findings of the Research
- It was observed that the expansion of woody plants has distinguished effects on wild and domestic herbivores. The wild animals, exemplified by the Pyrenean chamois, displayed higher dietary flexibility or ‘trophic plasticity’, and therefore were less affected by the conversion of grasslands to woody vegetation.
- On the contrary, domesticated animals such as cattle, sheep, and horses, which primarily rely on grassland for nutrition, are predicted to be more disturbed by the process of ‘shrubification’. They are estimated to be affected around 3.6 times more than their wild counterparts.
Significance and Implications of the Study
- The study suggests that mixed feeders such as chamois could potentially benefit from landscapes overtaken by woody plant growth (‘fallow landscapes’).
- However, the implications for livestock farming are quite negative, as this change in land-use practices and climate conditions can lead to reduced feeding efficiency for livestock, incurring considerable economic risk for mountain farmers.
By highlighting the different impacts on species based on their dietary adaptability, this research underlines the need for managing plant diversity and considering animal feeding habits in strategies geared at mitigating the impacts of changing environments.
Cite This Article
Publication
Researcher Affiliations
- Wildlife Ecology & Health Group (WE&H) and Servei d'Ecopatologia de Fauna Salvatge (SEFaS), Departament de Medicina i Cirurgia Animals, Facultat de Veterinària, Universitat Autònoma de Barcelona, Barcelona, Spain.
- Centre for Biodiversity Theory and Modelling. Theoretical and Experimental Ecology Station, CNRS-Paul Sabatier University, Moulis, France.
- Department of Geography, University of Cambridge, Cambridge, UK.
- Swiss Federal Research Institute WSL, Birmensdorf, Switzerland.
- Global Change Research Centre (CzechGlobe), Brno, Czech Republic.
- Department of Geography, Faculty of Science, Masaryk University, Brno, Czech Republic.
- Grup de Recerca en Remugants, Departament de Ciència Animal i dels Aliments, Facultat de Veterinària, Universitat Autònoma de Barcelon, Barcelona, Spain.
- Unitat de botánica, Departament de Biologia Animal, Biologia Vegetal i Ecologia, Universitat Autònoma de Barcelona, Bellaterra, Spain.
- Centre de Recerca Ecològica i Aplicacions Forestals (CREAF), Cerdanyola del Vallès, Spain.
- Wildlife Ecology & Health Group (WE&H) and Servei d'Ecopatologia de Fauna Salvatge (SEFaS), Departament de Medicina i Cirurgia Animals, Facultat de Veterinària, Universitat Autònoma de Barcelona, Barcelona, Spain.
- Facultad de ciencias pecuarias, Universidad de Nariño, Pasto, Colombia.
- Centre de Recerca Ecològica i Aplicacions Forestals (CREAF), Cerdanyola del Vallès, Spain.
- CSIC, Global Ecology Unit, CREAF-CSIC-Universitat Autònoma de Barcelona, Bellaterra, Spain.
- CREAF, Centre de Recerca Ecològica i Aplicacions Forestals, Edifici Ciències, Bellaterra Catalunya, Spain.
- Unitat d'Ecologia, Departament de Biologia Animal, Biologia Vegetal i Ecologia, Universitat Autònoma de Barcelona, Edifici Ciències, Bellaterra Catalunya, Spain.
- Wildlife Ecology & Health Group (WE&H) and Servei d'Ecopatologia de Fauna Salvatge (SEFaS), Departament de Medicina i Cirurgia Animals, Facultat de Veterinària, Universitat Autònoma de Barcelona, Barcelona, Spain.
MeSH Terms
- Animals
- Animals, Wild
- Climate Change
- Ecosystem
- Food Preferences
- Herbivory / physiology
- Livestock / physiology
- Plants / classification
- Rupicapra / physiology
- Species Specificity
Grant Funding
- 726176 / European Research Council
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