Pub Date : 2023-08-04DOI: 10.4102/koedoe.v65i1.1732
Katlego K. Mashiane, A. Ramoelo, Samuel Adelebu, Ernest Daemane
{"title":"Assessing environmental factors contributing to plant species richness in mountainous mesic grasslands","authors":"Katlego K. Mashiane, A. Ramoelo, Samuel Adelebu, Ernest Daemane","doi":"10.4102/koedoe.v65i1.1732","DOIUrl":"https://doi.org/10.4102/koedoe.v65i1.1732","url":null,"abstract":"","PeriodicalId":48892,"journal":{"name":"Koedoe","volume":"15 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81850237","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-07-26DOI: 10.4102/koedoe.v65i1.1773
A. Mills, T. Strydom, Jessica L. Allen, J. Baum
No abstract available
没有摘要
{"title":"Potential geochemical constraints on tree seedlings in northern Kruger National Park grasslands","authors":"A. Mills, T. Strydom, Jessica L. Allen, J. Baum","doi":"10.4102/koedoe.v65i1.1773","DOIUrl":"https://doi.org/10.4102/koedoe.v65i1.1773","url":null,"abstract":"No abstract available","PeriodicalId":48892,"journal":{"name":"Koedoe","volume":"1 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90263208","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-07-24DOI: 10.4102/koedoe.v65i1.1760
Gary K. Nicolau, Emily A Jackson, R. Wasserman
{"title":"Mass vehicle induced mortalities of Giant Bullfrogs in Nylsvley Nature Reserve","authors":"Gary K. Nicolau, Emily A Jackson, R. Wasserman","doi":"10.4102/koedoe.v65i1.1760","DOIUrl":"https://doi.org/10.4102/koedoe.v65i1.1760","url":null,"abstract":"","PeriodicalId":48892,"journal":{"name":"Koedoe","volume":"29 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73723104","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-06-01DOI: 10.4102/koedoe.v65i1.1740
J. Midgley, J. D. White, L. Kruger, G. Hempson
{"title":"Seed burial reduces seed predation in the endangered Clanwilliam cedar (Widdringtonia wallichii)","authors":"J. Midgley, J. D. White, L. Kruger, G. Hempson","doi":"10.4102/koedoe.v65i1.1740","DOIUrl":"https://doi.org/10.4102/koedoe.v65i1.1740","url":null,"abstract":"","PeriodicalId":48892,"journal":{"name":"Koedoe","volume":"18 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84327298","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-05-31DOI: 10.4102/koedoe.v65i1.1742
S. O. Malongweni, J. V. van Tol
{"title":"Influence of herbivores and trees on soil biochemical properties of a semi-arid savanna","authors":"S. O. Malongweni, J. V. van Tol","doi":"10.4102/koedoe.v65i1.1742","DOIUrl":"https://doi.org/10.4102/koedoe.v65i1.1742","url":null,"abstract":"","PeriodicalId":48892,"journal":{"name":"Koedoe","volume":"104 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77536687","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-04-26DOI: 10.4102/koedoe.v65i1.1734
A. Bernard, L. Moolman, Melanie A. de Morney, C. Guerbois, J. Venter, H. Fritz
{"title":"Height-related detection bias in camera trap surveys: Insights for combining data sets","authors":"A. Bernard, L. Moolman, Melanie A. de Morney, C. Guerbois, J. Venter, H. Fritz","doi":"10.4102/koedoe.v65i1.1734","DOIUrl":"https://doi.org/10.4102/koedoe.v65i1.1734","url":null,"abstract":"","PeriodicalId":48892,"journal":{"name":"Koedoe","volume":"26 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85383354","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-04-26DOI: 10.4102/koedoe.v65i1.1738
N. Munyai, A. Ramoelo, S. Adelabu, H. Bezuidenhout
It is well known that fire is a common driver in many biomes and it plays a vital role in maintaining ecosystem functioning in many South African biomes. This ecosystem process is an important determinant of plant community composition and diversity, and can result in changes in structural composition and ecosystem functioning. The main objectives of this study are to determine the influence of fire on grass species richness, diversity and composition in Mountain Zebra National Park. Using satellite imagery, the park’s fire history was determined between 2000 and 2020. Eighty plots (approximately 20 m × 20 m; 100 m apart) were laid out purposively across different fire regimes. There was no significant difference in both species richness and diversity in burned and unburned sites. However, there was a difference in species composition between burned and unburned sites and between different fire frequencies. The unburned site had higher moribund material and unpalatable grasses compared to the burned area.Conservation implications: The results of this study will help in the completion of the fire management plan for the park which will enable conservation managers to make better decisions with regard to fire management in mountainous grassland at Mountain Zebra National Park. Consequently, this will lead to improved veld condition and vegetation structure.
{"title":"The influence of fire presence and absence on grass species composition and species richness at Mountain Zebra National Park","authors":"N. Munyai, A. Ramoelo, S. Adelabu, H. Bezuidenhout","doi":"10.4102/koedoe.v65i1.1738","DOIUrl":"https://doi.org/10.4102/koedoe.v65i1.1738","url":null,"abstract":"It is well known that fire is a common driver in many biomes and it plays a vital role in maintaining ecosystem functioning in many South African biomes. This ecosystem process is an important determinant of plant community composition and diversity, and can result in changes in structural composition and ecosystem functioning. The main objectives of this study are to determine the influence of fire on grass species richness, diversity and composition in Mountain Zebra National Park. Using satellite imagery, the park’s fire history was determined between 2000 and 2020. Eighty plots (approximately 20 m × 20 m; 100 m apart) were laid out purposively across different fire regimes. There was no significant difference in both species richness and diversity in burned and unburned sites. However, there was a difference in species composition between burned and unburned sites and between different fire frequencies. The unburned site had higher moribund material and unpalatable grasses compared to the burned area.Conservation implications: The results of this study will help in the completion of the fire management plan for the park which will enable conservation managers to make better decisions with regard to fire management in mountainous grassland at Mountain Zebra National Park. Consequently, this will lead to improved veld condition and vegetation structure.","PeriodicalId":48892,"journal":{"name":"Koedoe","volume":"75 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82079170","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-09-30DOI: 10.4102/koedoe.v64i1.1709
Nkabeng T. Mzileni, Hendrik Sithole, H. Bezuidenhout, Roxanne Erusan, Rodney Makwakwa
assemblages. A total of five pans were measured in the Northern Cape province of South Africa located on the Savanna and Nama-Karoo biomes within a 4500 ha area. The measurements taken included water quality variables (pH, salinity, total dissolved solids [TDS]), taxon diversity and richness of macro-invertebrates and aquatic birdlife. Evaporation rate between the pans varied with time. There was a difference in the macro-invertebrate taxon richness between the pans. Macro-invertebrate taxon succession was observed over time and some macro-invertebrates showed confinement to pans of a particular biome. It was found that pH was significantly the most contributing factor to the taxon richness and diversity of the macro-invertebrates recorded, while the salinity and TDS increased with time as water evaporated. Conservation implications: The shrimps (fairy, clam and tadpole) were unique to the Nama-Karoo pans. It was found that pH ( p < 0.05) was the most contributing factor to the taxon richness and diversity of the macro-invertebrates recorded, and salinity and TDS increased with time as water evaporated.
{"title":"The ephemeral pans of Gras-Holpan: Mokala National Park, Northern Cape, South Africa","authors":"Nkabeng T. Mzileni, Hendrik Sithole, H. Bezuidenhout, Roxanne Erusan, Rodney Makwakwa","doi":"10.4102/koedoe.v64i1.1709","DOIUrl":"https://doi.org/10.4102/koedoe.v64i1.1709","url":null,"abstract":"assemblages. A total of five pans were measured in the Northern Cape province of South Africa located on the Savanna and Nama-Karoo biomes within a 4500 ha area. The measurements taken included water quality variables (pH, salinity, total dissolved solids [TDS]), taxon diversity and richness of macro-invertebrates and aquatic birdlife. Evaporation rate between the pans varied with time. There was a difference in the macro-invertebrate taxon richness between the pans. Macro-invertebrate taxon succession was observed over time and some macro-invertebrates showed confinement to pans of a particular biome. It was found that pH was significantly the most contributing factor to the taxon richness and diversity of the macro-invertebrates recorded, while the salinity and TDS increased with time as water evaporated. Conservation implications: The shrimps (fairy, clam and tadpole) were unique to the Nama-Karoo pans. It was found that pH ( p < 0.05) was the most contributing factor to the taxon richness and diversity of the macro-invertebrates recorded, and salinity and TDS increased with time as water evaporated.","PeriodicalId":48892,"journal":{"name":"Koedoe","volume":"19 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2022-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88009109","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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