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 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 Factors influencing the appearance of spider (Araneae) and beetle (Coleoptera) assemblages in nests of great reed warbler Acrocephalus arundinaceus

Biologia ◽  
2014 ◽  
Vol 69 (7) ◽  
Author(s):  
Thomas Mérő ◽  
Maja Janjatović ◽  
Roland Horváth ◽  
Katarina Mrkobrad ◽  
Antun Žuljević
Keyword(s):  
Species Richness ◽  
Great Reed Warbler ◽  
Acrocephalus Arundinaceus ◽  
Reed Warbler ◽  
Factors Influencing ◽  
Significant Difference ◽  
Beetle Assemblages ◽  
Potential Factors ◽  
Spider Abundance ◽  
Species Richness And Abundance

AbstractThe appearance of spider (Araneae) and beetle (Coleoptera) assemblages found in nests of great reed warbler Acrocephalus arundinaceus was studied, firstly to investigate breeding success and the amount of precipitation as potential factors which might affect the abundance and species richness of both groups. In addition, we compared the diversity of spider and beetle assemblages between nests found in different reed habitats, and considered the position of nests (above water or dry ground). In this study we selected five different randomly chosen reed habitats: two mining ponds, two small canals and one large canal. Great Reed Warbler nests were collected either shortly after fledging, or after the clutch had failed. Altogether, 12 species of spider and 19 species of beetle were collected. In both groups there was no significant difference in abundance between successful, lost and cuckoo-parasitized nests; however, there was a significant difference in species richness between the three nest categories in spider assemblages, which was not the case in beetle assemblages. The amount of precipitation did not affect beetle or spider abundance; only the species richness of spiders showed significant growth. Furthermore, we found no significant relationship between vegetation cover and the species richness and abundance of spiders and beetles. The diversity of both groups differed significantly according to reed habitat: beetle assemblages were most diverse by the large canal and spiders at the mining ponds.

Species richness and abundance of ectomycorrhizal basidiomycete sporocarps on a moisture gradient in the Tsuga heterophylla zone

2000 ◽  
Vol 77 (12) ◽  
pp. 1699-1711 ◽  
Author(s):  
Thomas E O'Dell ◽  
Joseph F Ammirati ◽  
Edward G Schreiner
Keyword(s):  
Species Richness ◽  
Ectomycorrhizal Fungi ◽  
Standing Crop ◽  
National Park ◽  
Environmental Gradient ◽  
Total Sample ◽  
Fungal Species ◽  
Tsuga Heterophylla ◽  
Olympic National Park ◽  
Species Richness And Abundance

Sporocarps of epigeous ectomycorrhizal fungi and vegetation data were collected from eight Tsuga heterophylla (Raf.) Sarg. - Pseudotsuga menziesii (Mirb.) Franco stands along a wet to dry gradient in Olympic National Park, Washington, U.S.A. One hundred and fifty species of ectomycorrhizal fungi were collected from a total sample area of 2.08 ha. Over 2 years, fungal species richness ranged from 19 to 67 taxa per stand. Sporocarp standing crop ranged from 0 to 3.8 kg/ha, averaging 0.58 kg/ha, 0.06 kg/ha in spring and 0.97 kg/ha in fall. Sporocarp standing crop and fungal species richness were correlated with precipitation. These results demonstrated that ectomycorrhizal fungal sporocarp abundance and species richness can be partly explained in terms of an environmental gradient.

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).

The diet of the brush-tailed rabbit-rat (Conilurus penicillatus) from the monsoonal tropics of the Northern Territory, Australia

2005 ◽  
Vol 32 (6) ◽  
pp. 517 ◽  
Author(s):  
Ronald S. C. Firth ◽  
Elizabeth Jefferys ◽  
John C. Z. Woinarski ◽  
Richard A. Noske
Keyword(s):  
National Park ◽  
Microscopic Analysis ◽  
Northern Territory ◽  
Seed Material ◽  
Faecal Samples ◽  
Significant Difference

The diet of the brush-tailed rabbit-rat (Conilurus penicillatus) was assessed by microscopic analysis of faecal samples from 35 individuals collected from three different sites in the Northern Territory (Garig Gunak Barlu National Park (Cobourg Peninsula), Kakadu National Park and Melville Island) at various times of the year during 2000–02. Seed was the most abundant item in the overall diet of C. penicillatus, making up 68% of identifiable particles, with smaller proportions contributed by leaves (21%), plant stems (8%) and insects (2%). ANOSIM tests revealed no difference in diet between the sexes and seasons, but there was a significant difference in the diet between the sites, with seed material present in 74% of the samples from Cobourg and in 62% and 58% of samples from Kakadu and Melville respectively. Leaf matter was present in 19% of samples from Cobourg and in 26% and 24% of samples from Kakadu and Melville respectively. Stem material was present in only 6% of samples from Cobourg and in 8% and 13% of samples from Kakadu and Melville respectively. Insect matter was present in small quantities across all three sites. The high proportion of seed in the diet suggests that C. penicillatus is primarily granivorous.

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.

The genus Cola (Malvaceae) in Cameroon’s Korup National Park, with two novelties

2018 ◽  
Vol 151 (2) ◽  
pp. 241-251 ◽  
Author(s):  
David Kenfack ◽  
Moses N. Sainge ◽  
George B. Chuyong ◽  
Duncan W. Thomas
Keyword(s):  
Species Richness ◽  
New Species ◽  
National Park ◽  
Conservation Status ◽  
Morphological Identification ◽  
Comparable Data ◽  
Korup National Park ◽  
Distribution Ranges ◽  
Two New Species ◽  
Species Richness And Abundance

Background and aims – Cola, the second largest genus of the Malvaceae-Sterculioideae comprises 100–135 small to large tree species confined in nature to African forests, though cultivated elsewhere. Current species distribution ranges show that the genus is highly diverse in the seasonally wet forests along the Nigeria-Cameroon border, including the Korup National Park (KNP). In this paper we examine the diversity and abundance of Cola in KNP compared to other forests for which comparable data are available. We also describe two novelties in the genus.Methods – We used inventory data from a 50-ha permanent plot in southern KNP where all Cola trees and saplings down to 1 cm in diameter were tagged, mapped and identified. Additional collections of the genus came from the 11 km trail leading to the plot. Classic herbarium techniques and field observations were used for the morphological identification and description of specimens at MO and YA and from our personal collections. Cola species richness and abundance was estimated from the plot data and compared to other African forest sites for which comparable data are available. The evaluation of the conservation status of the two new species described in this paper followed the IUCN Red List Categories and Criteria. Key results – Twenty-five species of Cola were identified in the southern part of the KNP, including four undescribed species, raising the total number of Cola species in Cameroon to 46. The abundance of the genus in KNP was three orders of magnitude higher than in the Rabi forest in southwestern Gabon or in the Ituri forest in eastern D.R. Congo. This high species richness and abundance suggests that KNP is part of the center of diversity of the genus. Two new species, Cola zemagoana Kenfack & D.W.Thomas and C. mamboana Kenfack & Sainge are described and illustrated. Both species are only known from the lowland rainforest of southwestern Cameroon. Cola zemagoana is narrow endemic of southern KNP and its conservation status is assessed as Endangered. Cola mamboana is confined to the lowland forests of southwestern Cameroon, is locally very abundant in protected areas and is also assigned the conservation status Endangered.

scholarly journals Impact of Mikania micrantha H.B.K. Invasion on Diversity and Abundance of Plant Species of Chitwan National Park, Nepal

2015 ◽  
Vol 19 (2) ◽  
pp. 30-36 ◽  
Author(s):  
Binoj Kumar Shrestha ◽  
Dharma Raj Dangol
Keyword(s):  
Species Richness ◽  
Plant Species ◽  
National Park ◽  
Sampling Technique ◽  
Plant Species Richness ◽  
Alien Plant ◽  
Mikania Micrantha ◽  
Crown Cover ◽  
Chitwan National Park ◽  
Species Richness And Abundance

This research investigated the invasion of the alien plant Mikania micrantha H.B.K. and its impact on plant species richness and abundance in Chitwan National Park (CNP) forest. Stratified sampling technique was used to collect the information using the nested quadrats in the Mikania invaded and not invaded sites in July 2011. The study revealed that the invasion highly related with the vegetation structure of the habitat; higher the tree crown cover lower the invasion. On the other hand, the invasion in terms of cover percent of Mikania irrespective of the biomass (fresh weight) decreased plant species richness. Species richness showed unimodal response to the Mikania cover percent with the decrease after 35% of Mikania cover. Journal of Institute of Science and Technology, 2014, 19(2): 30-36

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