Habitat structure of chimpanzee community in Ise‐Forest Reserve, Ekiti State, South‐western Nigeria

Ogunjemite, Babafemi George; Afolayan, T. A.; Agbelusi, E.A.

doi:10.1111/j.1365-2028.2005.00596.x

Cited by 5 publications

(3 citation statements)

References 8 publications

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“…23 27 This reducing encounter rate may have been due to hunting and habitat alteration, worsened by the negative consequences of a programme of agricultural development assistance to migrant farmers. In addition, 19,28,29 and Ogunjemite et al, 30 reported that the rate of exploitation of Southwestern Nigerian forest ecosystems was over five times higher than the rate of forest regeneration, and logging pressure was intense and on the increase. It is, therefore, clear that many wildlife species including C torquatus have been threatened by widespread habitat loss for a very long time.…”

Section: Discussionmentioning

confidence: 99%

Density and Abundance of the Red-Capped Mangabey (Cercocebus Torquatus) In Omo Biosphere Reserve and Idanre Forest Reserve, South Western Nigeria

Jo¹

2017

MOJPB

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Red-capped mangabey (Cercocebus torquatus) is a partly terrestrial monkey that has experienced >50% declines in the population size and the area of occupancy in the last three decades. We conducted primate surveys in Omo Biosphere Reserve and Idanre Forest Reserve to examine the density and abundance of C. torquatus between 2012 and 2014 using DISTANCE statistical package. To examine if encounter rates differ by season, we tested the data with Kruskal-Wallis tests. At Omo, we had 21 sightings of C. torquatus groups and 17 groups at Idanre. The encounter rates were 0.07groups/km at Omo and 0.05groups/km at Idanre. Sighting was more frequent in the dry season (Kruskal-Wallis test =3.857; p<0.05) than in wet seasons in both forests. The estimated group size was 4±0.3 members per group 3±0.2 members per group in Omo and in Idanre, respectively.Keywords: terrestrial, occupancy, primates, sightings, kruskal-wallis MOJ Proteomics & Bioinformatics Research ArticleOpen Access Density and abundance of the red-capped mangabey (cercocebus torquatus) in omo biosphere reserve and idanre forest reserve, south western Nigeria 64Copyright: ©2017 Orimaye et al. Citation Data collectionWe walked a total of nine nature's trails, hunters' trails, or loggers' trails in IFR and nine in OBR between January 2012 and November 2014. The trails ranged in length between 1.9km and 3.7km with a mean length of 2.8km in Omo Forest and between 2.2km and 4.0km in length with the average length of 3km in IFR,. At each study site, the trails were walked in the morning between 6.30 hour and 10.30hours and in the evening between 16.00hours to 19.00hours. The trails were walked slowly at a speed of 1.0-1.5km/hr, with regular stops every 50meters for one minute, to carefully screen all forest strata and detect any movement or sound/noise. The following are the elements recorded during each walk: the perpendicular distance to the transect of the first individual seen, activities of all animals seen, GPS coordinates of the location, time, and the length of transect walked. Data AnalysisSurvey data obtained from the survey of the red-capped mangabey from the two study areas were processed using DISTANCE statistical package, version 6.0. Kruskal-Wallis and Kolmogorov-Smirnov tests were used to test the significance of the mean of data between the study sites and descriptive statistics such as frequency tables and percentages were used to describe results. ResultsTransects covered, sightings and mean sighting distances of C. torquatus in the study areasThe result of our transects survey is shown in Table 1. We sighted 9 mangabey groups on nine trails in Omo Forest and 9 groups on transects walked in both OBR and IFR in dry and wet seasons between January 2012 and November 2014 covering a total distance of 626.4km. At Omo Biosphere reserve, we recorded 21 sightings from 9 transects totaling 303.6km translating to one sighting per 3.84km. In addition, 17 groups of the red-capped mangabey were observed from nine (9) transects covering a distance of 32...

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Section: Discussionmentioning

confidence: 99%

Density and Abundance of the Red-Capped Mangabey (Cercocebus Torquatus) In Omo Biosphere Reserve and Idanre Forest Reserve, South Western Nigeria

Jo¹

2017

MOJPB

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“…To construct a nest takes only a few minutes but the resulting structure is sturdy and remains identifiable even after many months. Chimpanzee nests and nesting behavior have been studied directly and indirectly from the earliest field studies to the present [Nissen, ; Bolwig, ; Goodall, ; Schaller, ; Reynolds and Reynolds, ; Izawa and Itani, ; de Bournonville, ; Jones and Sabater Pi, ; Baldwin, ; Baldwin et al, ; Anderson et al, ; Sabater Pi, ; Ghiglieri, ; Tutin and Fernandez, ; Sept, ; Wrogemann, ; Fruth 1990 in Fruth and Hohmann, ; Marchesi et al, ; Furuichi et al, ; Ogawa et al, ; Plumptre and Reynolds, ; Furuichi and Hashimoto, ; Brownlow et al, ; Basabose and Yamagiwa, ; Hunt and McGrew, ; Ham 1998 in Kormos et al, ; Humle, ; Llorente‐Caño, ; Poulsen and Clark, ; Ogunjemite et al, ; Hernandez‐Aguilar, ; Morgan et al, ; Koops et al, ; Petre et al, ; Sanz et al, ; Stewart et al, ; Pruetz et al, ; Stanford and O'Malley, ; Granier, ; Sousa et al, ; Samson, ; Samson and Hunt, ]. Despite such studies and although nesting is a daily behavior of the great apes, the environmental constraints of nesting remain poorly understood.…”

Section: Introductionmentioning

confidence: 99%

Chimpanzee nesting patterns in savanna habitat: Environmental influences and preferences

Hernández‐Aguilar

Moore

Stanford

2013

American J Primatol

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Data on chimpanzee (Pan troglodytes) nesting patterns were collected in Issa, Ugalla, western Tanzania. Ugalla is one of the driest, most open, and seasonal habitats inhabited by chimpanzees. We investigated the physical characteristics of nests and trees used for nesting to understand environmental influences on nest building and identify the characteristics preferred by the chimpanzees and the basis for such preferences. We analyzed 2,167 nests and 1,523 nesting trees. Most nests were built in the middle section of the tree crown and close to the tree trunk, and used a single tree in construction. Some physical characteristics of nests (e.g., distance from tree trunk) seemed to be the result of constraints imposed by tree structure. Issa chimpanzees preferred tall trees with high first branches for nesting supporting the hypothesis that elevated height of a sleeping place is a predator defense strategy. The height from the ground to the first branch showed less variation than either tree height or crown height and correlated weakly with tree height, suggesting that height from the ground to the first branch may be a more important factor than tree height alone in selecting a tree in which to nest. As in other study sites, the chimpanzees used tree species in proportions that did not correspond to their abundance suggesting tree species preference. We report for the first time that chimpanzees directionally oriented their nests and propose that this may be to maximize sunlight. We compare our data to those of other chimpanzee study sites.

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“…The assessment of vegetation structure and other characteristic features of pangolin habitat were carried out where pangolins or other activities were sighted and indices of pangolins were established using plot sampling technique (Ogunjemite et al, 2005;Newton et al, 2007). A line transect was constructed at each study area and the characteristic features such as termite hill, hollow tree, deadwood and distance to water source were recorded.…”

Section: Assessment Of Vegetation Structure and Other Characteristic ...mentioning

confidence: 99%

Habitat preference and distribution of pangolin in Ala Forest Reserve and Onipanu Community Forest of Southwestern Nigeria

ONI,

EJIDIKE,

OLADEJI

et al. 2023

Int. J. Biodivers. Conserv.

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Despite the ecological significance, social and economic values and the roles being played by pangolin, their ecological roles remain under-studied in context to Nigeria. There is dearth of information on the current status, distribution, habitat preferred by pangolin especially in the tropical rainforest ecoregion of Nigeria. Information on the overall habitat ecology, preference and the current distribution pattern of pangolin in the study areas were generated. Species name, height and diameter at breast height (DBH) of woody trees were recorded and Shannon-Wiener index of species diversity were used to evaluate diversity. Knowledgeable source, field guide books and indirect indices such as signs, footprints and decayed dead parts were employed. Hunters living in villages around the study sites were interviewed to facilitate opportunity to examine hunting practices, feeding and habits in areas where each species lived independently. Findings from this study reveal information on the presence of Phataginus tetradactyla, in the study ecosystem, habitat preference and the distribution pattern. The information provided will go a long way towards developing conservation strategies for pangolin in the study areas based on the available information on the ecological significance, social and economic values and the roles being played by this species of animal in context to Nigeria.

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Habitat structure of chimpanzee community in Ise‐Forest Reserve, Ekiti State, South‐western Nigeria

Cited by 5 publications

References 8 publications

Density and Abundance of the Red-Capped Mangabey (Cercocebus Torquatus) In Omo Biosphere Reserve and Idanre Forest Reserve, South Western Nigeria

Density and Abundance of the Red-Capped Mangabey (Cercocebus Torquatus) In Omo Biosphere Reserve and Idanre Forest Reserve, South Western Nigeria

Chimpanzee nesting patterns in savanna habitat: Environmental influences and preferences

Habitat preference and distribution of pangolin in Ala Forest Reserve and Onipanu Community Forest of Southwestern Nigeria

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