Preliminary surveys of the terrestrial vertebrate fauna (mammals, reptiles, and amphibians) of the Edumanon Forest Reserve, Nigeria

Akani, Godfrey C.; Aifesehi, Pedro E.E; Petrozzi, Fabio; Amadi, Nioking; Luiselli, Luca

doi:10.1080/03946975.2014.944376

Cited by 61 publications

(15 citation statements)

References 12 publications

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“…(ii) Extinct and uncertain species list (Table 2)-a given species was considered regionally extinct when it satisfied concurrently two criteria: (a) it was neither observed by us nor recorded in literature since 2005; and (b) it does occur in the Niger Delta according to the IUCN (2014) maps (e.g., the pigmy hippo Choeropsis liberiensis). A given species was considered uncertain/wrongly cited for the Niger Delta, even if occasionally mentioned in the scientific literature, when it satisfied concurrently three criteria: (a1) it was neither observed by us nor recorded in Original field sightings were obtained opportunistically during long-term field researches (1996)(1997)(1998)(1999)(2000)(2001)(2002)(2003)(2004)(2005)(2006)(2007)(2008)(2009)(2010)(2011)(2012)(2013)(2014)(2015) mainly performed during ecological investigations on reptiles (e.g., Akani et al 2008Akani et al , 2014a. Data presented in this paper collate both those presented in Petrozzi Angelici et al (1999) Euoticus elegantulus ND ND ND ND ND ND Cited by Blench (2007) Potamogale velox 1 0 1 0 0 0 Cited by Heslop (1935a) and Angelici et al (1999) Hystrix cristata ND ND ND ND ND ND Cited by Blench (2007) Lepus microtis ND ND ND ND ND ND Cited by Blench (2007) Gerbilliscus validus ND ND ND ND ND ND Cited by Blench (2007) Anomalurus derbianus (2007) Herpestes naso 0 0 1 0 0 0 Unobserved recently, probably due to suboptimal research…”

Section: Protocolmentioning

confidence: 99%

“…Literature entries reporting precise locality data, recorded in 2005-2015, were also used (e.g., Baker and Olubode 2008;Baker et al 2009;Pimley 2009; Colyn et al Ikemeh 2007aIkemeh , b, 2013Akani et al 2014aAkani et al , b, c, 2015Petrozzi et al 2015). Although published after 2005, Blench (2007) was not considered as a source for current data (2005)(2006)(2007)(2008)(2009)(2010)(2011)(2012)(2013)(2014)(2015) because (1) most of this author's records came from Powell (1993), and (2) Blench did not explicitly distinguish between his own original/recent records and those drawn from Powell (1993).…”

Section: Protocolmentioning

confidence: 99%

“…For instance, this region has been carefully explored for primate ecological research since the 1960s (e.g., Oates and Jewell 1967;Jewell and Oates 1969;Oates 1985Oates , 1999Anadu and Oates 1988;Werre 1991;Oates et al 2004;Baker et al 2009), and during the last 20 years also for the ecology of reptiles (e.g., Akani et al 1999;2008;Luiselli 2008) and amphibians (e.g., Akani et al 2004;2014a;. However, the ecology of some groups of animals was least studied, for instance that of non-primate large and medium sized mammals (e.g., Happold 1987;Powell 1993Powell , 1997Angelici et al 1999;Petrozzi et al 2015).…”

Section: Introductionmentioning

confidence: 99%

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Ecological diversity, community structure and conservation of Niger Delta mammals

et al. 2015

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The Niger Delta (southern Nigeria) is a crucial region for biodiversity because it is (i) part of the West African forests hotspot, (ii) under considerable threats because of habitat devastations, and (iii) a minor centre of endemism for many faunal and floral groups. In this paper, we analyze the communities of mammals (excluding bats, shrews and murids) occurring in all vegetation zones of the region, using both original field data (direct sightings of live animals, bushmeat market specimens, skins, skulls, bones, tracks, reliable interviews) collected in 1996-2015 and literature data. We also explore the main drivers of community structure by using a suite of multivariate (cluster) and null models (co-occurrence) analyses, and the conservation consequences of our data. A total of 45 extant species was found; their ecological distribution was uneven across vegetation zones, with flood forest, marsh forest and eastern flank forests housing more species. Although most species were widespread, 33.3 % had narrow ecological preferences. Cluster analysis confirmed that the community composition was (i) similar in habitats that were suspected to derive from pristine flood forests, and that (ii) the mammal assemblages were different in the two sides of the River Niger main axis. The endemic rate was low (4.44 % of the species), with one endemic species for each of the two sides of the Niger Delta. Twentyone species were uncertain to occur in the study area, with a few being extinct (for instance, Choeropsis liberiensis). Co-occurrence models excluded that a competitively structured community of species is assembled in each of the vegetation zones, and cluster Communicated by analyses suggested that biogeographic pressures may be important. 24.4 % of the extant species are globally threatened by IUCN, with one being Endangered (Pan troglodytes) and one Critically Endangered (Piliocolobus epieni). Flood forest and Eastern Flank forest represented the main vegetation zones inhabited by threatened species. In order to preserve the mammal community of the Delta, it is essential to carefully conserve flood and marsh forest patches, but also barrier island forests that still house highly threatened mammal populations.

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Section: Protocolmentioning

confidence: 99%

Section: Protocolmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Ecological diversity, community structure and conservation of Niger Delta mammals

et al. 2015

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“…Akani et al, 18 reported the presence of 9 amphibian species in Edumanon forest reserve in Bayelsa state. Akani et al, 17 reported 10 species of amphibians in Taylor creek forest reserve.…”

Section: Amphibiansmentioning

confidence: 99%

“…Hamadina et al, 16 reported the existence of 18 reptilian species which are distributed into 12 families in the Nun River reserve in Bayelsa state through interview and survey. Akani et al, 18 reported the presence of 31 reptilian species and few are distributed into ACT 11 schedule 1 within Edumanon forest reserve. Akani et al, 19 reported the presence of 34 reptiles in Taylor creek forest reserve.…”

Section: Reptilesmentioning

confidence: 99%

Factors affecting the population trend of biodiversity in the Niger delta region of Nigeria

Izah¹,

Aigberua²,

Nduka³

2018

IJAWB

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Some biodiversity of global importance are found in the Niger Delta region of Nigeria. The biodiversity resources of the Niger Delta comprises of several species of mammals, reptiles, amphibians, avian fauna, microorganisms, fisheries (animals), and mosses, liverworts, pteridophytes, gymnosperms, chlamydosperms, monocotyledons, dicotyledons etc (plants). The region is hotspots of several endemic species. In recent times, the biodiversity distribution with regard to abundance and diversity appears to be on the decline trend. Hence, this study assessed the factors leading to decline of biodiversity resources in the Niger Delta. The study found that excessive exploitation, urbanization/industrialization, deforestation/habitat destruction, bush burning, soil erosion and pollution, climate change are the leading cause of loss of biodiversity. The loss of biodiversity affects its roles including source of medicinal plants, shelters, habitats, raw materials for several art and construction works (plants), nutrient mineralization through biogeochemical cycles, loss of animal protein and species of global importance. The paper concludes by suggesting full implementation and enforcement of several environmental conventions, laws and legislations geared towards protection of biodiversity at both international and national level of which Nigeria is part of. Furthermore, outlining biodiversity conservation strategies in curriculum of school is another potential option for conserving biodiversity.

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Potential Threats and Possible Conservation Strategies of Biodiversity in Niger Delta Region of Nigeria

Izah

Aigberua²

2023

Sustainable Development and Biodiversity

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Preliminary surveys of the terrestrial vertebrate fauna (mammals, reptiles, and amphibians) of the Edumanon Forest Reserve, Nigeria

Cited by 61 publications

References 12 publications

Ecological diversity, community structure and conservation of Niger Delta mammals

Ecological diversity, community structure and conservation of Niger Delta mammals

Factors affecting the population trend of biodiversity in the Niger delta region of Nigeria

Potential Threats and Possible Conservation Strategies of Biodiversity in Niger Delta Region of Nigeria

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