Overgrazing strongly impedes the natural regeneration of the endemic Boswellia species on Socotra Island

Hamdiah, Salem (avtor), Eler, Klemen (avtor), Van Damme, Kay (avtor), Attorre, Fabio (avtor), La Montagna, Dario (avtor), De Sanctis, Michele (avtor), Shaneyehen, Mohammed (avtor), Amar, Mohammed (avtor), Marfo, Theodore Danso (avtor), Maděra, Petr (avtor)

Frankincense trees (Boswellia spp.) worldwide are affected by a number of threats, including global warming and changing land management practices. On the Socotra Archipelago (Yemen), which harbours eleven endemic Boswellia species, grazing is generally assumed to be one of the main threats preventing natural regeneration. To test the impact of overgrazing on natural regeneration, we established an in situ experiment on four different Boswellia taxa in different areas of Socotra Island. Mortality and the height increment of seedlings were measured for a period of two/three years in five plots excluded from grazing (fenced) and in five paired control (unfenced) plots. Each plot was 50 m × 50 m in size and contained several adult trees as a source of viable seeds. Our results show that seedling mortality was significantly higher, and seedling height increment generally (4 out of 5 sites) lower in open compared to fenced plots. In the fenced plots, the number of seedlings for all species reached up to 772, with 560 surviving seedlings. In comparison, the control plots reached up to 296 seedlings, with 176 seedlings surviving after 2–3 years. The results of our experimental study indicate that grazing directly threatens the natural regeneration of the endemic Boswellia on Socotra Island. However, seedling mortality remained relatively high inside the exclosures as well, which indicates that even without the pressure of livestock grazing, other impacts remain a challenge for the future conservation of the archipelago's unique frankincense trees.

• Jezik: Angleški jezik
• Ključne besede: dryland flora, exclosure experiments, frankincense trees, land management, seedling survival and mortality
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: BF - Biotehniška fakulteta
• Status publikacije: Objavljeno
• Različica publikacije: Objavljena publikacija
• Leto izida: 2024
• Št. strani: Str. 249-263
• Številčenje: Vol. 70, iss. 5
• PID: 20.500.12556/RUL-165009
• UDK: 581
• ISSN pri članku: 1212-4834
• DOI: 10.17221/3/2024-JFS
• COBISS.SI-ID: 215779075
• Datum objave v RUL: 20.11.2024

Gradivo je del revije

• Naslov: Journal of forest science
• Založnik: Institute of agricultural and food information
• ISSN: 1212-4834
• COBISS.SI-ID: 89046

Licence

• Licenca: CC BY-NC 4.0, Creative Commons Priznanje avtorstva-Nekomercialno 4.0 Mednarodna
• Povezava: http://creativecommons.org/licenses/by-nc/4.0/deed.sl
• Opis: Licenca Creative Commons, ki prepoveduje komercialno uporabo, vendar uporabniki ne rabijo upravljati materialnih avtorskih pravic na izpeljanih delih z enako licenco.

Sekundarni jezik

• Jezik: Slovenski jezik
• Ključne besede: rastline suhih območij, bosvelija, Boswellia, sadike, preživetje sadik