... This effect might be a result of only one or two people accompanying the herd; more people mi... more ... This effect might be a result of only one or two people accompanying the herd; more people might be more successful in the defence against predators, as other studies proved (Ogada et al., 2003), but this was not widely applied in Cameroon due to lack of finances. ...
... We acknowledge the assistance of the former Chief game Warden of Bénoué NP, Mr. Assan Gomse, ... more ... We acknowledge the assistance of the former Chief game Warden of Bénoué NP, Mr. Assan Gomse, our driver Steven Lambi and the African Lion Working Group. We are grateful for the continuous support by Ralph Buij, Hans Bauer and Jean Pierre Mvondo. References. ...
BACKGROUND Gärdenfors et al. (2001) were the first to present new guidelines for the application ... more BACKGROUND Gärdenfors et al. (2001) were the first to present new guidelines for the application of the IUCN Red List criteria at regional levels. A final version of the Regional Application guidelines (version 3.0) was published by the IUCN in 2003. These new guidelines were expected to facilitate regional (national) red listing, using the new IUCN Categories and Criteria (C&C). Several initiatives have been taken to discuss the need to harmonize European Red Lists, using the new IUCN C&C version 3.1. In 2001 the Finnish National Committee for IUCN organized a European seminar on Red List Categories and Criteria in Helsinki. An important conclusion of this workshop was the need to apply the new IUCN C&C to achieve more harmonization of Red Lists within Europe, since many countries still use different criteria and categories for establishing national Red Lists.
Within the framework of a fisheries project in northeast Thailand, project MK/FSPC/069 entitled '... more Within the framework of a fisheries project in northeast Thailand, project MK/FSPC/069 entitled 'The Fish Seed Production Centre, North East Thailand', an assessment was carried out of the ecological impact of introducing exotic fish species (common carp, Cyprinus carpio L., Nile tilapia, Oreochromis niloticus (L.), and Chinese and Indian carps). For the assessment, the protocol of Kohler & Stanley (1984) was followed, covering feasibility of introduction, acclimatization potential, potential impact, and control potentials. Regarding the (ongoing) use of the proposed exotic species in aquaculture, it was concluded that so far no clear ecological impact has been reported from escapes to open water; the use of the exotic species has shown to be highly beneficial from a 9 socioeconomic point of view. Regarding the proposed introduction of the exotic species into public waters (natural lakes and man-made reservoirs), it was concluded that earlier releases of these species in northeast Thailand did not provoke severe ecological impact in terms of deterioration of aquatic ecosystems. Incidental cases of minor ecological impact were reported for common carp and nile tilapia. Indications were obtained for niche competition between Chinese and Indian carps and indigenous carps, while similar niche competition was concluded for bighead carp, Aristichthys nobilis (Richardson), and indigenous pelagic zooplankton feeders. Observing the prolific development of the Nile tilapia in a number of reported cases, it was recommended not to include this species in stocking programmes for public water bodies, until more risk assessments are available.
This article is an open access article distributed under the terms and conditions of the Creative... more This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY
Understanding the habitat preferences and temporal activity of Armenian brown bears (Ursus arctos... more Understanding the habitat preferences and temporal activity of Armenian brown bears (Ursus arctos) in relation to human presence and the presence of other mammalian species in a biodiversity hotspot region is essential for their conservation. In this study we investigated how human disturbance affects the brown bear's temporal and spatial activity in the privately protected Caucasus Wildlife Refuge (CWR) of Armenia. In addition, we investigated spatio-temporal distribution of brown bear in relation to other wildlife present in the study area and looked at its habitat preferences. We placed 28 camera traps were placed in areas inside or adjacent to CWR for a period of 3 months in 2018. Presence/absence data were used to calculate the species richness and activity patterns and inserted in different occupancy models for the bears and the other mammals found in the area. Of the 14 medium and large-sized mammal species that could theoretically live in the area, we recorded 13, four of which are listed in the Red Book of Animals of Armenia (including the very rare Caucasian leopard). The results showed that brown bears are, to a certain extent habituated to human presence, since they were found near human settlements. Areas closer to water bodies were also found to be more likely occupied by brown bears. In addition, brown bear presence had a positive effect on the occupancy of potential prey species. The activity pattern analysis revealed that there is some diel temporal partitioning present between brown bear's and other mammalian species' activity.
... This effect might be a result of only one or two people accompanying the herd; more people mi... more ... This effect might be a result of only one or two people accompanying the herd; more people might be more successful in the defence against predators, as other studies proved (Ogada et al., 2003), but this was not widely applied in Cameroon due to lack of finances. ...
... We acknowledge the assistance of the former Chief game Warden of Bénoué NP, Mr. Assan Gomse, ... more ... We acknowledge the assistance of the former Chief game Warden of Bénoué NP, Mr. Assan Gomse, our driver Steven Lambi and the African Lion Working Group. We are grateful for the continuous support by Ralph Buij, Hans Bauer and Jean Pierre Mvondo. References. ...
BACKGROUND Gärdenfors et al. (2001) were the first to present new guidelines for the application ... more BACKGROUND Gärdenfors et al. (2001) were the first to present new guidelines for the application of the IUCN Red List criteria at regional levels. A final version of the Regional Application guidelines (version 3.0) was published by the IUCN in 2003. These new guidelines were expected to facilitate regional (national) red listing, using the new IUCN Categories and Criteria (C&C). Several initiatives have been taken to discuss the need to harmonize European Red Lists, using the new IUCN C&C version 3.1. In 2001 the Finnish National Committee for IUCN organized a European seminar on Red List Categories and Criteria in Helsinki. An important conclusion of this workshop was the need to apply the new IUCN C&C to achieve more harmonization of Red Lists within Europe, since many countries still use different criteria and categories for establishing national Red Lists.
Within the framework of a fisheries project in northeast Thailand, project MK/FSPC/069 entitled '... more Within the framework of a fisheries project in northeast Thailand, project MK/FSPC/069 entitled 'The Fish Seed Production Centre, North East Thailand', an assessment was carried out of the ecological impact of introducing exotic fish species (common carp, Cyprinus carpio L., Nile tilapia, Oreochromis niloticus (L.), and Chinese and Indian carps). For the assessment, the protocol of Kohler & Stanley (1984) was followed, covering feasibility of introduction, acclimatization potential, potential impact, and control potentials. Regarding the (ongoing) use of the proposed exotic species in aquaculture, it was concluded that so far no clear ecological impact has been reported from escapes to open water; the use of the exotic species has shown to be highly beneficial from a 9 socioeconomic point of view. Regarding the proposed introduction of the exotic species into public waters (natural lakes and man-made reservoirs), it was concluded that earlier releases of these species in northeast Thailand did not provoke severe ecological impact in terms of deterioration of aquatic ecosystems. Incidental cases of minor ecological impact were reported for common carp and nile tilapia. Indications were obtained for niche competition between Chinese and Indian carps and indigenous carps, while similar niche competition was concluded for bighead carp, Aristichthys nobilis (Richardson), and indigenous pelagic zooplankton feeders. Observing the prolific development of the Nile tilapia in a number of reported cases, it was recommended not to include this species in stocking programmes for public water bodies, until more risk assessments are available.
This article is an open access article distributed under the terms and conditions of the Creative... more This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY
Understanding the habitat preferences and temporal activity of Armenian brown bears (Ursus arctos... more Understanding the habitat preferences and temporal activity of Armenian brown bears (Ursus arctos) in relation to human presence and the presence of other mammalian species in a biodiversity hotspot region is essential for their conservation. In this study we investigated how human disturbance affects the brown bear's temporal and spatial activity in the privately protected Caucasus Wildlife Refuge (CWR) of Armenia. In addition, we investigated spatio-temporal distribution of brown bear in relation to other wildlife present in the study area and looked at its habitat preferences. We placed 28 camera traps were placed in areas inside or adjacent to CWR for a period of 3 months in 2018. Presence/absence data were used to calculate the species richness and activity patterns and inserted in different occupancy models for the bears and the other mammals found in the area. Of the 14 medium and large-sized mammal species that could theoretically live in the area, we recorded 13, four of which are listed in the Red Book of Animals of Armenia (including the very rare Caucasian leopard). The results showed that brown bears are, to a certain extent habituated to human presence, since they were found near human settlements. Areas closer to water bodies were also found to be more likely occupied by brown bears. In addition, brown bear presence had a positive effect on the occupancy of potential prey species. The activity pattern analysis revealed that there is some diel temporal partitioning present between brown bear's and other mammalian species' activity.
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