scholarly journals Seasonal variation in species richness and abundance of waterbirds in Mole National Park, Ghana: Implication for conservation and ecotourism

Koedoe ◽  
2018 ◽  
Vol 60 (1) ◽  
Author(s):  
Timothy K. Aikins ◽  
Francis Gbogbo ◽  
Erasmus H. Owusu
Keyword(s):  
Species Richness ◽  
Seasonal Variation ◽  
National Park ◽  
Dry Season ◽  
Wet Season ◽  
Bird Abundance ◽  
Number Of Species ◽  
Waterbird Species ◽  
Significant Difference ◽  
Species Richness And Abundance

Mole National Park is the largest and the oldest national park in Ghana and an important bird area, yet its waterbird fauna is poorly documented because it is situated in the northern ecological zone far away from the coast of Ghana. Information on the seasonal variation in the park’s bird abundance and diversity is generally patchy but necessary for effective birdwatching planning and management of the park’s birds. Therefore, as a guide to potential ecotourists interested in waterbirds, this study described the seasonal variation in waterbird species diversity and abundance at Mole National Park. As waterbirds mostly congregate around open wetlands and their abundance is more appropriately determined by counting all individuals in the congregant, data were collected using the total area count of waterbirds from August 2015 to October 2015 (the wet season) and from December 2015 to February 2016 (the dry season). Secondary data on arrival of tourists in the park were also analysed. The park’s waterbird species richness was 29 in the dry season compared to 18 in the wet season. There was significant difference (p < 0.05) in the abundance of waterbirds in the dry season in which 4014 waterbirds were encountered compared to 646 in the wet season. The yearly tourist arrival data at Mole National Park shows an increasing trend with peak visitation period occurring during the wet season. The chances of tourists encountering more species and numbers of waterbirds in the park are higher in the dry season compared to the wet season.Conservation implications: Species richness and abundance of waterbirds in Mole National Park varied according to the wet and dry seasons with both the number of species and abundance higher in the dry season than the wet season. It is therefore indicative that most birdwatchers who visit the park in the wet season miss out on a number of species and numbers of waterbirds. To achieve effective birdwatching, management should schedule birdwatching activities to coincide with the dry season as the chances of encountering more species and numbers of waterbirds are higher.

scholarly journals Patterns of Species Richness and Abundance in Badingilo National Park in South Sudan

2019 ◽  
Vol 1 (1) ◽  
Author(s):  
Thomas Francis Lado ◽  
David Gwolo Phanuel Mogga ◽  
Richard Angelo Lado Benjamin
Keyword(s):  
Species Richness ◽  
National Park ◽  
Habitat Type ◽  
Bird Species ◽  
Abundant Species ◽  
Point Count ◽  
Number Of Species ◽  
Riverine Habitat ◽  
Species Richness And Abundance ◽  
Point Count Method

The study was carried out to determine patterns of birds’ species richness, alpha and beta diversities; and abundance in Badingilo national park using a 10 m fixed-radius point count method. A total of 2670 individuals were recorded from 182 points in the park. The highest expected number of species (Jack1 estimator) was observed in the Riverine habitat and least was in the Agriculture and Human settlement habitat type. The total number of species observed in the park was 63; however Jack1 estimator indicated that there were 68 species in the park. The majority of the birds observed during the study were resident species, few migratory and Palaearctic bird species. Few birds observed in the park were abundant. The most abundant species was the village weaver (381 individuals), and the rarest species were black-bellied bustard, barn owl, black scimitar bill and tree pipit (one individual each).

scholarly journals THE EFFECT OF SEASONAL VARIATION ON PERFORMANCE OF EGG TYPE POULTRY: A Case Study of Mitchell Farms, Mosogar, Delta State, Nigeria

2021 ◽  
Vol 24 (2) ◽  
pp. 101-105
Author(s):  
E. E. Guobadia
Keyword(s):  
Seasonal Variation ◽  
Feed Intake ◽  
Egg Production ◽  
Management Practices ◽  
Secondary Data ◽  
Dry Season ◽  
Wet Season ◽  
Egg Hatchability ◽  
Significant Difference

The study was designed to find out the effect of seasonal variation on poultry in Delta State of Nigeria. The variables considered were mortality rate, feed intake, egg production and egg hatchability in the wet and dry seasons of the year. Secondary data were also collected from records kept in the farm. Sites 4AHI-BLK,5AKI-BLK, 9H/BF and 10H/BF were used for the study with each having an average of 2,500-3,500 birds of the same breed and sex aged 1-9 weeks and 21-52weeks. The records were grouped into dry season (October-March) and wet season (April-September) covering three years, 1991-1994. The analysis of the result showed that seasonal variation does not have any significant effect (P < 0.05) on mortality and feed intake in the two seasons. However percentage egg production and egg hatchability revealed a significant difference (P < 0.05) between the two seasons, with a mean % egg production and hatchability of 74±.03 and 80.6 in the wet season and 53.67±0.01 and 55.9 respectively in the dry season. Recommendation is therefore made for proper planning which ensures the utilization of wet and dry season management practices to reduce the effect of high humidity and embient temperature on production.

Songbird diversity and movement in upland and riparian habitats in the boreal mixedwood forest of northeastern Ontario

2006 ◽  
Vol 36 (5) ◽  
pp. 1149-1164 ◽  
Author(s):  
Erin Mosley ◽  
Stephen B Holmes ◽  
Erica Nol
Keyword(s):  
Species Richness ◽  
Breeding Period ◽  
Riparian Areas ◽  
Bird Abundance ◽  
Bird Populations ◽  
Significant Difference ◽  
Avian Biodiversity ◽  
Boreal Mixedwood Forest ◽  
Riparian Habitats ◽  
Species Richness And Abundance

Little is known about the importance of riparian areas in supporting avifaunal diversity in the boreal mixedwood forest, especially outside of the breeding season. Bird populations were sampled by mist netting 18 upland and 18 riparian sites along six streams in a forested region of northeastern Ontario. Riparian sites generally had more variable vegetation than upland sites. Some riparian sites formed distinctive habitats, while others were structurally and compositionally similar to upland sites. During spring and fall migration, there was no significant difference in bird abundance or species richness between riparian and upland habitats. During the breeding period, riparian areas had greater avian species richness and abundance and more insects than upland forests, suggesting that birds were selecting these habitats because they contain more food. More birds were captured in nets placed perpendicular to the stream than parallel during the breeding and fall migration periods, suggesting that riparian areas may function as movement corridors. A greater understanding of the importance of riparian habitats to songbird communities is needed if we are to maximize the effectiveness of these regions for conserving avian biodiversity in the boreal mixedwood forest.

scholarly journals Ground survey of red lechwe in the Linyanti swamps and Chobe floodplains, northern Botswana

Koedoe ◽  
2017 ◽  
Vol 59 (2) ◽  
Author(s):  
Phemelo Gadimang ◽  
Gaseitsiwe S. Masunga
Keyword(s):  
Sex Ratio ◽  
Age Structure ◽  
National Park ◽  
Local Communities ◽  
Dry Season ◽  
Wet Season ◽  
Seasonal Shift ◽  
Ground Survey ◽  
Significant Difference ◽  
Tourism Potential

A ground survey of red lechwe was carried out in the Linyanti swamps and the Chobe floodplains of northern Botswana in the dry and wet seasons of 2012 and 2013, respectively. We documented numbers, sex ratio and age structure of red lechwe within the linear strips of 25 km × 300 m along the Linyanti swamps and the Chobe floodplains. Results indicated a significant difference in the numbers of red lechwe between sites and seasons. About 66 and 755 red lechwe were estimated for Chobe in the dry and wet season, respectively, with 343 and 261 of them estimated for Linyanti in the dry and wet season, respectively. In Chobe, the red lechwe densities varied widely between seasons (9 red lechwe/km2 – 101 red lechwe/km2 ) compared with Linyanti, where the densities did not vary much between seasons (35 red lechwe/km2 – 46 red lechwe/km2 ). The lower densities of red lechwe in Chobe in the dry season when compared with the wet season suggest a possible seasonal shift in the distribution of red lechwe to the nearby Zambezi floodplains in Namibia.Conservation implications: The higher number of red lechwe in the Chobe floodplains in the wet season indicates the potential of the floodplains as a habitat for this species in that season. The dry season shift in the distribution of red lechwe in Chobe presents an opportunity for local communities in Namibia to engage in tourism, whereas the return of the red lechwe to the floodplains in the wet season ensures protection of the animals as well as boosts the tourism potential of the Chobe National Park.

The effects of fire-driven succession on reptiles in spinifex grasslnads at Uluru National Park, Northern Territory

1996 ◽  
Vol 23 (1) ◽  
pp. 39 ◽  
Author(s):  
P Masters
Keyword(s):  
Species Richness ◽  
National Park ◽  
Northern Territory ◽  
Pronounced Effect ◽  
Significant Difference ◽  
Reptile Species ◽  
Species Richness And Abundance

Fire-driven succession had a pronounced effect on the distribution and abundance of reptiles inhabiting spinifex grasslands in Ulu~u National Park from 1987 to 1990. Forty species of reptiles were trapped during the study. Of these 14 were common (> 20 captures), 6 were uncommon (11-20 captures) and 20 were rare (< 10 captures). Species richness and abundance of individuals were greater on plots with mature spinifex for most species. On most sampling occasions only four geographically widely distributed species were more abundant on the regenerating plots: Rhynchoedura ornata, Diplodactylus stenodactylus, Ctenophorus nuchalis and Ramphytyphlops endoterus. Two species, Diplodactylus conspicillatus and Lerista bipes, showed no significant difference in abundance between plots. This study supports the suggestion that fire mosaics maximise reptile diversity. Although most reptile species were caught in mature spinifex, regenerating areas act as fire breaks and ensure that mature spinifex is always present.

scholarly journals Population status of oribi (Ourebia ourebi Zimmermann, 1783) in Maze National Park, southern Ethiopia

2015 ◽  
Vol 41 (2) ◽  
pp. 145-151
Author(s):  
Wondimagegnehu Tekalign ◽  
Afework Bekele
Keyword(s):  
Seasonal Variation ◽  
National Park ◽  
Detection Method ◽  
Dry Season ◽  
Total Count ◽  
Southern Ethiopia ◽  
Flagship Species ◽  
Population Status ◽  
Wet Season ◽  
Dry Seasons

The population status of oribi (Ourebia ourebi Zimmermann, 1783) was carried out in the newly established Maze National Park, Ethiopia for two consecutive years (October 2009 to December 2011). A total count method was employed based on silent detection method in an area of 220 km2. A total of 894 and 1103 individuals were counted during the two consecutive years, respectively. Seasonal variation was significantly different with more individuals during the dry season than the wet season (p<0.05). The density of oribi over the whole area was 3.40 and 4.36 during the wet and 4.72 and 5.66 individuals per km2 during the dry seasons in both years, respectively. The study was important for future conservation measures as the oribi is the flagship species of the area.Bangladesh J. Zool. 41(2): 145-151, 2013

scholarly journals Seasonal variation of oceanographic processes in Indus river estuary

MAUSAM ◽  
2021 ◽  
Vol 68 (4) ◽  
pp. 643-654
Author(s):  
NOOR AHMED KALHORO ◽  
ZHIGUO HE ◽  
DONGFENG XU ◽  
ASIF INAM ◽  
FAIZ MUHAMMAD ◽  
...  
Keyword(s):  
Seasonal Variation ◽  
River Flow ◽  
River Estuary ◽  
Southwest Monsoon ◽  
Dry Season ◽  
Indus River ◽  
Wet Season ◽  
Salt Intrusion ◽  
Tidal Propagation ◽  
Significant Difference

Field investigations were conducted to study spatial and temporal (seasonal) variations in meteorological, hydrodynamic and hydrological variables in Indus River Estuary. The investigations were undertaken during wet, (moderate fluvial discharge), flood (highest fluvial discharge) and dry (zero fluvial discharge) seasons to obtain surface and near bed data during flood and ebb tides. Tides were semidiurnal, showing an asymmetric pattern with longer ebb tides and shorter flood tides. The hydrodynamic data revealed strong seasonal variation, the ebb velocities were significantly higher than flood current velocities during wet season, whereas a slight difference was found in current velocities during dry season, while the ebb phase lasted longer than flood during wet season; however no significant difference was observed during dry season. On the other hand during flood period the water currents were substantially higher and unidirectional related to the strong river flow. Turbidity values were considerably higher during flood season, than wet and dry seasons along the channel. However hydrological parameters such as temperature and dissolved Oxygen also revealed seasonal and spatial fluctuations, though they were within permissible range. The salinity distribution along the channel was related to the incoming river flow and tidal propagation. Higher salinity values were recorded in dry season, suggested that salinity variation at Estuary was due to salt intrusion from the North Arabian Sea, related to the absent of fluvial discharge form Indus River. Present study revealed substantial changes for hydrology and hydrodynamic conditions of the Indus River Estuary, related to the varying Indus River flow, as well as winds are another important atmospheric force in this region which enhanced the tidal forcing during southwest monsoon.

scholarly journals On the epidemiology of helminth parasites in Hangul Deer Cervus hanglu hanglu (Mammalia: Artiodactyla: Cervidae) of Dachigam National Park, India

2021 ◽  
Vol 13 (1) ◽  
pp. 17517-17520
Author(s):  
Naziya Khurshid ◽  
Hidayatullah Tak ◽  
Ruqeya Nazir ◽  
Kulsum Ahmad Bhat ◽  
Muniza Manzoor
Keyword(s):  
Risk Factors ◽  
National Park ◽  
Helminth Infection ◽  
Dry Season ◽  
Helminth Parasites ◽  
Wet Season ◽  
Factors Associated ◽  
Dictyocaulus Viviparus ◽  
Dachigam National Park ◽  
One Year

A one-year study conducted to ascertain the prevalence and risk factors associated with helminth infection in Hangul Deer Cervus hanglu hanglu at Dachigam National Park revealed that 40.45% (89 of 220 samples) were infected with four helminth species including Heamonchus contortus, Trichuris ovis, Dictyocaulus viviparus, and Moneizia expansa.  The study signified that the infection was more prevalent during the dry season (summer and autumn) as compared to the wet season (winter and spring).  The overall prevalence of Heamonchus contortus was the highest (23.18%) followed by Trichuris ovis (8.18%), followed by Dictyocaulus viviparus (5.45%), and Moneizia expansa (3.63%).  The present study should be of importance in conserving the erstwhile state animal, listed as Critically Engendered in 2017 by IUCN.

scholarly journals Seasonality of Mansonia titillans during dam construction, Biritiba-Mirim, São Paulo State, Brazil

2013 ◽  
Vol 13 (1) ◽  
pp. 70-73 ◽  
Author(s):  
Frederico Alves D'Avila ◽  
Almério de Castro Gomes
Keyword(s):  
Early Spring ◽  
Dry Season ◽  
Southeastern Brazil ◽  
Rank Test ◽  
Late Winter ◽  
Dam Construction ◽  
Wet Season ◽  
Paulo State ◽  
Significant Difference ◽  
Wilcoxon Rank Test

A two and a half year survey was conducted at a dam in southeastern Brazil. Shannon Traps were used for sampling. Kruskal-Wallis test showed little relation between rainfall and abundance. The data clearly show three abundance peaks, all of them in the end of the dry season, in consonance with the scarce literature existent. Although Kruskal-Wallis Test did not find a clear preference for the dry season, Pairwise Wilcoxon Rank Test revealed a significant difference between Fall and Spring samples. Ma. titillans population had a peak on late winter/early spring, close to the begin of wet season.

scholarly journals Numerical Assessments of Leaf Area Index in Tropical Savanna Rangelands, South Africa Using Landsat 8 OLI Derived Metrics and In-Situ Measurements

2019 ◽  
Vol 11 (7) ◽  
pp. 829 ◽  
Author(s):  
Timothy Dube ◽  
Santa Pandit ◽  
Cletah Shoko ◽  
Abel Ramoelo ◽  
Dominic Mazvimavi ◽  
...  
Keyword(s):  
South Africa ◽  
Leaf Area Index ◽  
Leaf Area ◽  
National Park ◽  
Dry Season ◽  
Kruger National Park ◽  
Landsat 8 ◽  
Tropical Savanna ◽  
Wet Season ◽  
Area Index

Knowledge on rangeland condition, productivity patterns and possible thresholds of potential concern, as well as the escalation of risks in the face of climate change and variability over savanna grasslands is essential for wildlife/livestock management purposes. The estimation of leaf area index (LAI) in tropical savanna ecosystems is therefore fundamental for the proper planning and management of this natural capital. In this study, we assess the spatio-temporal seasonal LAI dynamics (dry and wet seasons) as a proxy for rangeland condition and productivity in the Kruger National Park (KNP), South Africa. The 30 m Landsat 8 Operational Land Imager (OLI) spectral bands, derived vegetation indices and a non-parametric approach (i.e., random forest, RF) were used to assess dry and wet season LAI condition and variability in the KNP. The results showed that RF optimization enhanced the model performance in estimating LAI. Moderately high accuracies were observed for the dry season (R2 of 0.63–0.72 and average RMSE of 0.60 m2/m2) and wet season (0.62–0.63 and 0.79 m2/m2). Derived thematic maps demonstrated that the park had high LAI estimates during the wet season when compared to the dry season. On average, LAI estimates ranged between 3 and 7 m2/m2 during the wet season, whereas for the dry season most parts of the park had LAI estimates ranging between 0.00 and 3.5 m2/m2. The findings indicate that Kruger National Park had high levels of productivity during the wet season monitoring period. Overall, this work shows the unique potential of Landsat 8-derived metrics in assessing LAI as a proxy for tropical savanna rangelands productivity. The result is relevant for wildlife management and habitat assessment and monitoring.

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