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Why do cervids feed on aquatic vegetation?

Francisco Ceacero1, Tomás Landete-Castillejos2, María Miranda3

  • 1Department of Animal Science and Food Processing, Faculty of Tropical AgriSciences, Czech University of Life Sciences, Kamýcka 129, 165 21 Prague 6, Suchdol, Czech Republic.

Behavioural Processes
|November 14, 2013
PubMed
Summary
This summary is machine-generated.

Red deer consume aquatic plants in summer seeking higher nutrient content, not just sodium. Seasonal variations in essential minerals and protein drive this feeding behavior, meeting increased physiological demands.

Keywords:
Aquatic vegetationDiet seasonalityMineralsProteinRed deerSodium

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Area of Science:

  • Ecology
  • Animal Nutrition
  • Behavioral Ecology

Background:

  • Cervids rarely consume aquatic vegetation, despite its availability.
  • Limited research exists on the factors influencing aquatic plant consumption in deer.

Purpose of the Study:

  • To investigate nutritional values sought by Iberian red deer in aquatic plants.
  • To determine why red deer primarily consume aquatic plants during summer.

Main Methods:

  • Comparative analysis of seasonal nutrient content (Na, minerals, protein) in terrestrial and aquatic vegetation.
  • Evaluation of seasonal variations in red deer physiological demands.

Main Results:

  • Aquatic vegetation provides adequate sodium year-round, unlike deficient terrestrial vegetation.
  • Higher essential mineral and protein content in aquatic plants during summer correlates with their consumption.

Conclusions:

  • Seasonal consumption of aquatic plants by cervids is driven by nutrient availability and physiological needs.
  • Nutrient content, particularly minerals and protein, in aquatic vegetation influences summer feeding patterns in red deer.