干旱区生态环境知识资源中心(Arid): Illegal harvesting threatens fruit production and seedling recruitment of Balanites aegyptiaca in Dinder Biosphere Reserve, Sudan

Arid

DOI	10.1016/j.gecco.2021.e01732
	Illegal harvesting threatens fruit production and seedling recruitment of Balanites aegyptiaca in Dinder Biosphere Reserve, Sudan
	Mohammed, Elmugheira M., I; Hamed, Abass M. E.; Ndakidemi, Patrick A.; Treydte, Anna C.
通讯作者	Mohammed, EMI (corresponding author), POB 20, Wad Madani, Sudan.
来源期刊	GLOBAL ECOLOGY AND CONSERVATION
ISSN	2351-9894
出版年	2021
卷号	29
英文摘要	Illegal harvesting negatively affects the forest tree populations, particularly in sub-Saharan Africa, but little is known how fruit production and seedling recruitment are impacted. We assessed recruitment parameters of Balanites aegyptiaca trees in the Dinder Biosphere Reserve (DBR) across 100 sample plots of 25 m x 40 m in both human-impacted (disturbed) and undisturbed sites. We found that the average number of fruiting branches of B. aegyptiaca in the undisturbed sites were three times as high as those in the disturbed sites (F1,98 = 139, P < 0.001). Further, fruiting branches were positively correlated with crown width (R2 = 0.71, beta = 7.1, P = 0.01) across both sites. The height and crown width of B. aegyptiaca in the undisturbed sites were double that of the disturbed sites (F1,196 = 80, P < 0.001; F1,196 = 94.8, P < 0.001). Saplings and seedlings at the undisturbed sites were three times and twice that of the disturbed sites, respectively (F1,196 = 94.5, P < 0.001; F1,196 = 100.8, P < 0.001), with a positive correlation to the average number of fruiting branches (R2 = 0.74, beta = 0.45, P < 0.001). The soil nitrogen and phosphorus contents beneath trees in the undisturbed sites were almost double that of those in the disturbed sites (F1, 196 = 68.1, P < 0.001; F1, 196 = 97.9, P < 0.001) while sodium and electrical conductivity were by about 50% lower (F1, 196 = 535.8, P < 0.001; F1, 196 = 16.1, P < 0.001). We conclude that illegal harvesting in DBR severely reduced tree structure and recruitment parameters of B. aegyptiaca, which might also have impacted soil fertility. We urge for intensive monitoring and awarenessraising programs to conserve this vulnerable tree species.
英文关键词	Desert date Forest Tree dynamics Overutilization Rangelands Soil chemical properties
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000694732600003
WOS关键词	FOREST ; TREE ; SOIL ; DIVERSITY ; IMPACTS ; GROWTH ; BIOMASS ; SYSTEMS ; REGION
WOS类目	Biodiversity Conservation ; Ecology
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/363472
作者单位	[Mohammed, Elmugheira M., I; Ndakidemi, Patrick A.; Treydte, Anna C.] Sch Life Sci & Bioengn, Nelson Mandela African Inst Sci & Technol, Dept Sustainable Agr Biodivers Conservat & Ecosys, Arusha, Tanzania; [Mohammed, Elmugheira M., I] Univ Gezira, Fac Forest Sci & Technol, Dept Forest Management Sci, Wad Madani, Sudan; [Hamed, Abass M. E.] Univ Bahri, Coll Nat Resources & Environm Studies, Dept Basic Sci, Khartoum, Sudan; [Treydte, Anna C.] Stockholm Univ, Dept Phys Geog, Stockholm, Sweden; [Treydte, Anna C.] Hohenheim Univ, Dept Ecol Trop Agr Syst, Stuttgart, Germany
推荐引用方式 GB/T 7714	Mohammed, Elmugheira M., I,Hamed, Abass M. E.,Ndakidemi, Patrick A.,et al. Illegal harvesting threatens fruit production and seedling recruitment of Balanites aegyptiaca in Dinder Biosphere Reserve, Sudan[J],2021,29.
APA	Mohammed, Elmugheira M., I,Hamed, Abass M. E.,Ndakidemi, Patrick A.,&Treydte, Anna C..(2021).Illegal harvesting threatens fruit production and seedling recruitment of Balanites aegyptiaca in Dinder Biosphere Reserve, Sudan.GLOBAL ECOLOGY AND CONSERVATION,29.
MLA	Mohammed, Elmugheira M., I,et al."Illegal harvesting threatens fruit production and seedling recruitment of Balanites aegyptiaca in Dinder Biosphere Reserve, Sudan".GLOBAL ECOLOGY AND CONSERVATION 29(2021).