Helminthes et arthropodes parasites du poulet local de basse cour au benin

Dossa, Sc; Salifou, Sahidou; Dossou-Gbete, Gso; Mensah, S. I.

doi:10.4314/asab.v7i2.43302

Cited by 2 publications

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“…Furthermore, house mice have been sampled only in the industrial zone of APC where it was highly abundant. On the contrary, a previous study detected a very low presence of this species from the surrounding area (four individuals in Abomey‐Calavi; Dossou et al., 2015) and the core city of Cotonou (one individual in Ladji; Dossou et al., 2022). House mice have never been collected elsewhere despite massive prospections in villages and towns as well as along a latitudinal transect across southern Benin (Dossou et al., 2015; Houéménou et al., 2019; Hima et al., 2019).…”

Section: Discussionmentioning

confidence: 78%

“…On the contrary, a previous study detected a very low presence of this species from the surrounding area (four individuals in Abomey‐Calavi; Dossou et al., 2015) and the core city of Cotonou (one individual in Ladji; Dossou et al., 2022). House mice have never been collected elsewhere despite massive prospections in villages and towns as well as along a latitudinal transect across southern Benin (Dossou et al., 2015; Houéménou et al., 2019; Hima et al., 2019). Importantly, this species was found to occur in the great market of Niamey (Niger), where many trucks discharge imported food and products that are loaded inside the APC (Hima et al., 2019).…”

Section: Discussionmentioning

confidence: 78%

“…We speculate that its insectivorous diet is well adapted to the abundance of insects that may be attracted by the large amounts of fresh fish as well as constant humidity that characterise APC1 and APC2 sites. Regarding R. rattus , this rodent is the most abundant species within Cotonou and other southern cities in Benin (Dossou et al., 2015; Hima et al., 2019; Houéménou et al., 2019). Therefore, this was not surprising to find highly abundant populations of this species in APC1 and APC2 sites (artisanal zone port), which are likely to be more similar to the urban areas of Cotonou than does the industrial part of the seaport—where dominant R. rattus populations were restricted to ‘peripheral’ areas (canteens at APC3, 78.1% of the total captures and parking area at APC9, 76.1%).…”

Section: Discussionmentioning

confidence: 99%

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Maritime international trade and bioinvasions: A three‐year long survey of small mammals in Autonomous Port of Cotonou, Benin

Badou,

Missihoun,

Agbangla

et al. 2023

Journal of Applied Ecology

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International trade has been favouring the dissemination of a wide suite of invasive alien species. Upstream prevention through the monitoring of entry points is identified as an appropriate strategy to achieve control of bioinvasions and their consequences. Maritime transportation has been responsible for the introduction worldwide of exotic rodents that are major pests for crops and food stocks as well as reservoirs of many zoonotic pathogens. In order to limit further dissemination, the International Health Regulation constrains decisions makers and socio‐economic stakeholders to manage ship‐mediated import/export of rodents within seaports. Unfortunately, eco‐evolutionary insights into rodent introduction events that could guide preventive actions in seaports are very scarce. In order to bridge this gap, we here describe the results of a 3 year‐long survey of small mammals conducted in the Port of Cotonou, Benin. Our aim was to assess the spatiotemporal distribution, diversity and relative abundance of invasive and native rodents. 960 small mammal individuals were captured in nine within‐seaport sites. We found (i) a marked predominance of invasive species (84% of the individuals belonging to Mus musculus, Rattus rattus, R. norvegicus), (ii) with native species (i.e. Mastomys natalensis and the shrew Crocidura olivieri) essentially restricted to peripheral non‐industrial areas, as well as (iii) a fine‐scale spatial segregation stable over time between the invasive Norway rats and house mice on the one hand, and the black rats and shrews on the other hand. Furthermore, trapping before and after two successive rodent control campaigns indicates that they were ineffective and that subsequent rodent recolonisation occurred 6–12 months following intervention. Synthesis and applications. Our results are discussed in terms of ecological processes at play (e.g. interspecific interactions) and operational recommendations (e.g. assessment of proper eradication units, environmental modifications).

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Section: Discussionmentioning

confidence: 78%

Section: Discussionmentioning

confidence: 78%

Section: Discussionmentioning

confidence: 99%

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Maritime international trade and bioinvasions: A three‐year long survey of small mammals in Autonomous Port of Cotonou, Benin

Badou,

Missihoun,

Agbangla

et al. 2023

Journal of Applied Ecology

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“…The exploitation of freshwater prawns in Benin is an ancient activity of great socio‐economic importance for the people living around water bodies and rivers (Dossou et al., 2012; Sachi et al., 2016). This fishing activity is mainly conducted on Ramsar sites 1017 and 1018, both located in the south of Benin in the agro‐ecological fishery zones (Adite et al., 2013).…”

Section: Introductionmentioning

confidence: 99%

Geographical variation of the structure and population parameters of the freshwater prawnMacrobrachium macrobrachion(Herklots, 1851) in West African coastal hydrosystems: Insights from Benin

Koussovi

Niass

Montcho³

et al. 2023

Aquaculture Fish & Fisheries

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The freshwater prawn Macrobrachium macrobrachion (Herklots, 1851) is widely exploited in the Oueme Delta and the low Mono in Benin. The structure and population parameters of M. macrobrachion were evaluated to provide accurate scientific information for the better exploitation and rational management of freshwater prawn species in these areas. In Oueme Delta (1928 specimens) and low Mono (1045 specimens), 2973 specimens were sampled by artisanal and experimental fishing and analysed. The prawns were caught between January and December 2016. Total length and total weight were taken from each specimen. Global and monthly size–frequency distributions showed that recruitment in both populations takes place from August to October with a peak in September. The population parameters obtained by analysing frequency data with FiSAT II software (FAO‐ICLARM) showed an L∞ = 15.50 cm, K = 0.35 year−1, t0 = −0.56 year in Oueme Delta and L∞ = 15.30 cm, K = 0.45 year−1, t0 = −0.43 year in low Mono. The growth performance index (Φ′) was 1.93 and 2.02 for the Oueme Delta and low Mono populations, respectively. The exploitation rates (Emax and E0.5) suggest that more than half of the M. macrobrachion population was exploited in the two areas. Natural and fishing mortality rates showed that both populations of M. macrobrachion were vulnerable to natural and fishing death. The estimated first capture size (Lc) revealed that the majority of the two populations of M. macrobrachion were captured before they reached the size at first sexual maturity (L50), reflecting fishing pressure on small individuals and growth overfishing in both areas. These results showed that the used fishing gears and the fishing frequencies in both areas did not allow the majority of the prawn to grow and reproduce at least once before being caught.

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Helminthes et arthropodes parasites du poulet local de basse cour au benin

Cited by 2 publications

References 0 publications

Maritime international trade and bioinvasions: A three‐year long survey of small mammals in Autonomous Port of Cotonou, Benin

Maritime international trade and bioinvasions: A three‐year long survey of small mammals in Autonomous Port of Cotonou, Benin

Geographical variation of the structure and population parameters of the freshwater prawnMacrobrachium macrobrachion(Herklots, 1851) in West African coastal hydrosystems: Insights from Benin

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