scholarly journals Restoration of Citropsis articulata, a Species at Risk from Medicinal Overharvesting in a Ugandan Rainforest Reserve

2021 ◽  
Vol 2021 ◽  
pp. 1-5
Author(s):  
William Olupot
Keyword(s):  
At Risk ◽  
Seed Germination ◽  
Success Rate ◽  
Species At Risk ◽  
Forest Reserve ◽  
Ongoing Effort ◽  
Germination Success ◽  
Forest Plants

Citropsis articulata, the African cherry orange, is considered to be threatened in Ugandan forests as a result of its purported aphrodisiac properties. This study, part of an ongoing effort to address restoration needs of Mabira Central Forest Reserve in Uganda, demonstrates the feasibility of restoring depleted C. articulata populations using seedlings transplanted from nursery-grown seeds. Phenology of 20 Mabira forest plants was monitored with the aim of collecting seeds. One hundred and fifty-six ripe fruits were collected, and 233 of the extracted seeds were planted in pots in a nursery during January–March 2019. During November-December 2019, seedlings were planted near the sites from which fruits were collected. Seed germination success rate was 89%, and fifteen months after transplanting, in situ survival was 100%. These results suggest that depleted C. articulata populations may be restored in situ using nursery-grown seeds.

Determining the factors affecting seed germination in Livistona australis (Arecaceae) for the recovery of fragmented populations

2012 ◽  
Vol 60 (7) ◽  
pp. 575 ◽  
Author(s):  
Nicholas Carlile ◽  
David Priddel ◽  
Tony D. Auld ◽  
David A. Morrison
Keyword(s):  
Seed Germination ◽  
Seedling Recruitment ◽  
Seed Viability ◽  
Factors Affecting ◽  
Light Levels ◽  
In Situ Experiments ◽  
Germination Success ◽  
Buried Seed ◽  
Potential Success

Understanding seed germination and seedling recruitment is important for managing long-lived plant species, particularly palms that are transplanted from the wild and where regeneration is suppressed by seed predators and exotic herbivores. Seed viability, the timing of germination, and the factors influencing germination were investigated for the cabbage tree palm, Livistona australis (R.Br.) Mart. Greenhouse studies were combined with in situ experiments conducted on the Australian mainland and on a nearby mammal-free island. Under greenhouse conditions, >90% of seed germinated within 4 months. In the field, burial rather than surface sowing of seed increased germination success. Seed without mesocarp and in sunlight had increased germination when compared with fruits in shade on the island, whereas neither presence/absence of mesocarp or light levels had any effect on the mainland. Germination success was substantially lower on the mainland, primarily because of high seed predation from the native bush rat, Rattus fuscipes. When caged to exclude vertebrates, 44% of seed were damaged over time by pathogens and invertebrates, with losses greater in sunlight than in shade. Results from the present study indicate that freshly buried seed with the mesocarp removed would have the greatest potential success in promoting the restoration of L. australis at degraded sites.

Global population trends in shorebirds: migratory behaviour makes species at risk

2021 ◽  
Vol 108 (2) ◽  
Author(s):  
Jaroslav Koleček ◽  
Jiří Reif ◽  
Miroslav Šálek ◽  
Jan Hanzelka ◽  
Camille Sottas ◽  
...  
Keyword(s):  
At Risk ◽  
Population Trends ◽  
Species At Risk ◽  
Migratory Behaviour ◽  
Global Population

Measuring grassland structure for recovery of grassland species at risk

2005 ◽  
Author(s):  
Xulin Guo ◽  
Wei Gao ◽  
John Wilmshurst
Keyword(s):  
At Risk ◽  
Species At Risk ◽  
Grassland Species

Filling The Integrity Gaps In Protection On Of Species At Risk Through Litigation And Stewardship

2021 ◽  
Author(s):  
Khadijah Moinuddin
Keyword(s):  
At Risk ◽  
Threatened Species ◽  
Qualitative Interview ◽  
Species At Risk ◽  
Court Cases ◽  
Governmental Organizations ◽  
Non Governmental Organizations ◽  
Policy Measures ◽  
Risk Protection ◽  
Collaborative Efforts

There are many integrity gaps in the federal and provincial systems designed to protect endangered and threatened species in Canada. NGOs (Non-governmental organizations) and other stakeholders can get involved in the process of protecting species at risk, by participating in collaborative efforts through volunteerism and stewardship efforts. NGOs can also bring issues of species-at-risk protection to court through litigation. This thesis began by exploring the integrity gaps in the federal and provincial processes for species at risk protection. The thesis then examined different initiatives undertaken by NGOs to combat this issue, the first being litigation and how it can be used as a strategy to help protect species at risk, and hold government accountable. The thesis also explored the rationale behind NGO actions, as well as the possible outcomes from these court cases. Next, the thesis discussed volunteer efforts undertaken by NGOs and other stakeholders. The research was supplemented with valuable qualitative interview data from scientists, members of NGOs, members of government, and a lawyer. The thesis concluded with recommendations for further action and policy measures that can be taken to protect species at risk

Benthic diatoms as indicators of herbicide toxicity in rivers – A new SPEcies At Risk (SPEARherbicides) index

2019 ◽  
Vol 99 ◽  
pp. 203-213 ◽  
Author(s):  
Rebecca J. Wood ◽  
Simon M. Mitrovic ◽  
Richard P. Lim ◽  
Michael St. J. Warne ◽  
Jason Dunlop ◽  
...  
Keyword(s):  
At Risk ◽  
New Species ◽  
Benthic Diatoms ◽  
Species At Risk ◽  
Herbicide Toxicity ◽  
A New Species
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