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Plants (Basel, Switzerland)2022; 11(12); 1597; doi: 10.3390/plants11121597

Impact of Horse Grazing on Floristic Diversity in Mediterranean Small Standing-Water Ecosystems (SWEs).

Abstract: (SWEs), despite their pivotal ecological role due to their participation in hydrogeological processes and their richness in biodiversity, seem to be often overlooked by the scientific community. In this study, the vascular plant diversity in some representative SWEs, that host a peculiar assemblage of plant and animal species, was investigated in relation to the disturbance effects of a wild horse population. A total of 50 plots, equally distributed in small and large SWEs, were surveyed and a level of disturbance was attributed to each plot. We found greater species richness in small and undisturbed SWEs, which suggests the negative impact of horse grazing on the richness of plant species in this type of habitat. Significant differences in plant assemblage were found according to the disturbance level, whereas, contrary to what was observed for species richness, no differences were detected based on their size. The diversity indices, used to evaluate the richness and diversity in these areas, recorded the highest values for small and undisturbed areas. This result highlights that the disturbance of the horse grazing plays a pivotal role in affecting the diversity and richness of species in the SWEs. These findings suggest that SWE systems should be analyzed considering these areas as unique in order to allow the conservation of the plant richness and biodiversity of the SWE systems in conjunction with the protection of horses.
Publication Date: 2022-06-17 PubMed ID: 35736752PubMed Central: PMC9227585DOI: 10.3390/plants11121597Google Scholar: Lookup
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  • Journal Article

Summary

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The research investigates the effects of wild horse grazing on the diversity of plant species in small standing-water ecosystems (SWEs), crucial for their role in hydrogeological processes and fostering biodiversity. It found that horse grazing negatively impacts the diversity and richness of plant species in these ecosystems, emphasizing the need to consider SWEs in conservation efforts.

Understanding Small Standing-Water Ecosystems

  • Small standing-water ecosystems (SWEs) play a critical role in hydrogeological processes and biodiversity, hosting a unique assemblage of plant and animal species.
  • Despite their importance, these ecosystems often seem to be overlooked by the scientific community. The research aims to shed more light on SWEs by investigating the plant diversity within them.

The Role of Horse Grazing

  • The researchers studied the effects of disturbances caused by a wild horse population in representative SWEs.
  • To do this, they surveyed 50 plots distributed equally in small and large SWEs, attributing a level of disturbance to each plot.
  • Greater species richness was found in smaller, undisturbed SWEs, indicating the negative impact of horse grazing on plant diversity in these habitats.

Findings and Implications

  • They observed significant differences in plant assemblages based on the level of disturbance. However, no differences were detected based on the size of the SWEs.
  • Diversity indices used to evaluate richness and diversity revealed the highest values for small and undisturbed areas. This suggests that horse grazing significantly affects the diversity and richness of species within SWEs.
  • The results underline the importance of considering SWEs as unique areas for conservation to protect the plant richness and biodiversity of these systems as well as the horse populations.

Cite This Article

APA
Fenu G, Melis A, Pinna MS, Loi MC, Calderisi G, Cogoni D. (2022). Impact of Horse Grazing on Floristic Diversity in Mediterranean Small Standing-Water Ecosystems (SWEs). Plants (Basel), 11(12), 1597. https://doi.org/10.3390/plants11121597

Publication

ISSN: 2223-7747
NlmUniqueID: 101596181
Country: Switzerland
Language: English
Volume: 11
Issue: 12
PII: 1597

Researcher Affiliations

Fenu, Giuseppe
  • Department of Life and Environmental Sciences, University of Cagliari, Via Sant'Ignazio da Laconi, 13, 09123 Cagliari, Italy.
Melis, Arianna
  • Department of Life and Environmental Sciences, University of Cagliari, Via Sant'Ignazio da Laconi, 13, 09123 Cagliari, Italy.
Pinna, Maria Silvia
  • Department of Life and Environmental Sciences, University of Cagliari, Via Sant'Ignazio da Laconi, 13, 09123 Cagliari, Italy.
Loi, Maria Cecilia
  • Department of Life and Environmental Sciences, University of Cagliari, Via Sant'Ignazio da Laconi, 13, 09123 Cagliari, Italy.
Calderisi, Giulia
  • Department of Life and Environmental Sciences, University of Cagliari, Via Sant'Ignazio da Laconi, 13, 09123 Cagliari, Italy.
Cogoni, Donatella
  • Department of Life and Environmental Sciences, University of Cagliari, Via Sant'Ignazio da Laconi, 13, 09123 Cagliari, Italy.

Conflict of Interest Statement

The authors declare no conflict of interest.

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Citations

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