A. Species
Scientific name: Ceratogymna atrata
Common name(s): Black-casqued hornbill
Global IUCN Red List Threat Status: Least Concern
B. Location of use
Geographic location(s):
- Cameroon
Country/Region: Cameroon / Nkam and Sanaga Maritime departments of Cameroon's Littoral Region
C. Scale of assessment
Scale of assessment: Sub-national / Sub-region / Sub-State
Name/Details of location: Nkam and Sanaga Maritime departments of Cameroon's Littoral Region: Ebo National Park / 19 bordering villages
D. Timescale of use
Start Year: 2015
End Year: 2015
E. Information about the use
How is the wild species sourced?: Wild species sourced from its natural habitat
Type of use: Extractive
Practice of use: Hunting and/or Trapping of live terrestrial and aerial animals
Lethal or non-lethal: Lethal
Does this use involve take/extraction of: The whole entire organism
Purpose(s) of end use: Food and feed
Motivation of use: Basic subsistence
Is this use legal or illegal?: Some use is legal and some is illegal
F. Information about the Users
Which stakeholder(s) does the record primarily focus on?: Local people
G. Information about the sustainability of use
Is there evidence that the use is having an impact on the target species?: Wild species sourced from its natural habitat
Has an assessment (or judgement) of sustainability of the use of the target species from an ecological perspective been recorded?: Yes, considered unsustainable
Details of assessment carried out: Author informed opinion.
Brief summary on why the use has been assessed/judged to be sustainable or unsustainable: The study explains that life-history and demographic data for affected species is sparse, making it difficult to assess hunting sustainability and population trends. However, the authors' speculate that populations of hornbills are declining in the study area, as is the case elsewhere.
Has an assessment (or judgement) of sustainability of the use of the target species from an economic perspective been recorded?: No, sustainability not determined
Details of assessment carried out: author opinion
Brief summary on why the use has been assessed/judged to be sustainable or unsustainable: The study concludes that quantifying hunting sustainability in complex socio-ecological systems is challenging in general, and inadequate assessments not only run the risk of overestimating sustainability, potentially resulting in overexploitation, but also risk harming the livelihoods and wellbeing of resource users if estimates are overly conservative. Given the likely vulnerability of affected birds based on their life histories, the secretive nature of hunting activities, and because birds appear to be an important source of protein for unemployed men, the authors have avoided making a simplistic assessment of hunting sustainability here and recommend that future work firstly begins to monitor populations trends of affected species in the study area, and secondly investigates hunting sustainability using the suggested modeling techniques.
Has an assessment (or judgement) of sustainability of the use of the target species from a social perspective been recorded?: No, sustainability not determined
Details of assessment carried out: author opinion
Brief summary on why the use has been assessed/judged to be sustainable or unsustainable: The study concludes that quantifying hunting sustainability in complex socio-ecological systems is challenging in general, and inadequate assessments not only run the risk of overestimating sustainability, potentially resulting in overexploitation, but also risk harming the livelihoods and wellbeing of resource users if estimates are overly conservative. Given the likely vulnerability of affected birds based on their life histories, the secretive nature of hunting activities, and because birds appear to be an important source of protein for unemployed men, the authors have avoided making a simplistic assessment of hunting sustainability here and recommend that future work firstly begins to monitor populations trends of affected species in the study area, and secondly investigates hunting sustainability using the suggested modeling techniques.
Has an assessment (or judgement) of sustainability of the use of the target species from a human health perspective been recorded?: not recorded
Details of assessment carried out: not recorded in this study
Brief summary on why the use has been assessed/judged to be sustainable or unsustainable: not recorded in this study
Has an assessment (or judgement) of sustainability of the use of the target species from an animal health/welfare perspective been recorded?: not recorded
Details of assessment carried out: not recorded in this study
Brief summary on why the use has been assessed/judged to be sustainable or unsustainable: not recorded in this study
Recommendations provided in the record to maintain or enhance the sustainability of the use of the target species
Dynamic modeling techniques and agent-based models can offer novel insights by incorporating individual and spatial uncertainties in decision-making, for example from imperfect population monitoring. The authors recommend that palm-nut vulture, black casqued hornbill and white-thighed hornbill are re-classified as Data Deficient (from Least Concern) by the International Union for the Conservation of Nature's Red List of Threatened Species.
Record source
Information about the record source: scientific_pub
Date of publication/issue/production: 2018-01-01T00:00:00+0000
Source Reference(s):
https://doi.org/10.1016/j.biocon.2017.11.034
Date of record entry: 2022-11-28