Biodiversity Observations最新文献

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Common Starling Sturnus vulgaris expansion in South Africa 普通椋鸟在南非的扩张
Biodiversity Observations Pub Date : 2018-09-11 DOI: 10.15641/BO.V9I0.502
Ielyzaveta M. Ivanova, C. Symes
{"title":"Common Starling Sturnus vulgaris expansion in South Africa","authors":"Ielyzaveta M. Ivanova, C. Symes","doi":"10.15641/BO.V9I0.502","DOIUrl":"https://doi.org/10.15641/BO.V9I0.502","url":null,"abstract":"The Common Starling Sturnus vulgaris has progressively expanded its range in South Africa since its introduction into Cape Town in the late 19th century. In the past few decades it has extended this range into Gauteng province. Using data from the Southern African Bird Atlas Project 2, this paper examines the spread and relative abundance changes for the species across South Africa over the past 10 years, with a detailed look at the recently-colonised Gauteng. Across South Africa, the Common Starling's distribution has shifted, and grown. As it spreads north along the coastline and northwards inland, some of the former range has been lost. In Gauteng, the species has shown a range and abundance expansion over the same period. If the observed trends are to continue, this species is likely to eventually become a prominent species across the entire country, and further north into the sub-region. However, the potential impact that this species has on indigenous avifauna is unknown and, in the face of rapid anthropogenic change, remains to be investigated.","PeriodicalId":155392,"journal":{"name":"Biodiversity Observations","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124928627","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Systematic atlasing in Hessequa - Moving from mapping to monitoring Hessequa的系统地图集-从绘图到监测
Biodiversity Observations Pub Date : 2018-09-11 DOI: 10.15641/bo.v9i0.508
J. A. Van Rooyen
{"title":"Systematic atlasing in Hessequa - Moving from mapping to monitoring","authors":"J. A. Van Rooyen","doi":"10.15641/bo.v9i0.508","DOIUrl":"https://doi.org/10.15641/bo.v9i0.508","url":null,"abstract":"The Stilbaai Bird Group is atlasing in a structured and co-ordinated way to contribute towards the objectives of SABAP2. This paper documents the targets set and achieved over the period 1 October 2014 to 30 November 2017.","PeriodicalId":155392,"journal":{"name":"Biodiversity Observations","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117124245","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Aggregations of African Black Oystercatchers in remote coastal areas of the Northern Cape Province of South Africa 南非北开普省偏远沿海地区的非洲黑牡蛎捕捞者聚集
Biodiversity Observations Pub Date : 2018-09-07 DOI: 10.15641/BO.V9I0.572
L. Geldenhuys
{"title":"Aggregations of African Black Oystercatchers in remote coastal areas of the Northern Cape Province of South Africa","authors":"L. Geldenhuys","doi":"10.15641/BO.V9I0.572","DOIUrl":"https://doi.org/10.15641/BO.V9I0.572","url":null,"abstract":"Counts of African Black Oystercatchers along the Northern Cape Coastline, excluding the Namaqua National Park, were conducted during August and November of 2015, 2016 and 2017. An average of 387 oystercatchers were counted in this area. The area between Port Nolloth and Kleinsee accounted for 46 % of oystercatchers counted, and this relatively undisturbed and remote area could be an important site for the conservation of oystercatchers in South Africa.","PeriodicalId":155392,"journal":{"name":"Biodiversity Observations","volume":"72 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129582285","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Dragonflies and damselflies of the Western Cape - OdonataMAP report, August 2018 西开普省的蜻蜓和豆娘——OdonataMAP报告,2018年8月
Biodiversity Observations Pub Date : 2018-09-06 DOI: 10.15641/BO.V9I0.643
L. Underhill, Megan Loftie-Eaton, R. Navarro
{"title":"Dragonflies and damselflies of the Western Cape - OdonataMAP report, August 2018","authors":"L. Underhill, Megan Loftie-Eaton, R. Navarro","doi":"10.15641/BO.V9I0.643","DOIUrl":"https://doi.org/10.15641/BO.V9I0.643","url":null,"abstract":"\u0000In the two-year period 1 July 2016 to 30 June 2018, citizen scientists added seven species to the list of dragonflies and damselflies in the Western Cape, bringing the total to 76 species (Figure 1). \u0000The database available for this report contained 11,267 records of dragonflies and damselflies. This includes the specimen record dating back to the start of the 20th century. \u0000Of these records 2,433 records (22%) were added between July 2016 and June 2017, and 4,202 (37%) between July 2017 and June 2018. \u0000Thus 59% of the entire Western Cape database of records of dragonflies and damselflies was contributed by citizen scientists in two years. \u0000","PeriodicalId":155392,"journal":{"name":"Biodiversity Observations","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125445564","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Water, birds, and biodiversity - key elements of education 水、鸟类和生物多样性——教育的关键要素
Biodiversity Observations Pub Date : 2018-09-05 DOI: 10.15641/bo.v9i0.533
J. Fincham, Skhumbuzo Mbewu, J. Hobbs
{"title":"Water, birds, and biodiversity - key elements of education","authors":"J. Fincham, Skhumbuzo Mbewu, J. Hobbs","doi":"10.15641/bo.v9i0.533","DOIUrl":"https://doi.org/10.15641/bo.v9i0.533","url":null,"abstract":"Given the reality of the water crisis in the Western Cape (WC), especially in the City of Cape Town and the satellite towns, a unique opportunity exists to use the combination of the Paarl Bird Sanctuary and the Drakenstein Waste Water Treatment Works (PBS/WWTW) for education about water and related facts. Severe drought is not the only reason for the shortage of fresh water. It is likely that the water requirements of the burgeoning human population of the province, together with the need to use water to irrigate food crops, now exceed the water resources of the WC, despite the storage created in dams. An associated fact is that in the WC a large proportion of employed people work in Agriculture, both directly and indirectly. So any cut in water for irrigation, would increase unemployment and intensify poverty, which are already huge problems. The overall predicament has /country-wide, and even global implications, emphasising the need for water-related education.","PeriodicalId":155392,"journal":{"name":"Biodiversity Observations","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125964062","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
PREDATION OF YELLOW-BILLED HORNBILL ON ADULT SOUTHERN GREY-HEADED SPARROW 黄嘴犀鸟捕食成年南方灰头麻雀
Biodiversity Observations Pub Date : 2018-07-08 DOI: 10.15641/bo.v9i0.500
J. D. Castro, Lola Castro, M. D. Castro, Frank Rijnders
{"title":"PREDATION OF YELLOW-BILLED HORNBILL ON ADULT SOUTHERN GREY-HEADED SPARROW","authors":"J. D. Castro, Lola Castro, M. D. Castro, Frank Rijnders","doi":"10.15641/bo.v9i0.500","DOIUrl":"https://doi.org/10.15641/bo.v9i0.500","url":null,"abstract":"The article describes a predation incident of a yellow-billed hornbill on an adult southern grey-headed sparrow that took place at the Mabuasehube area of the Kgalagadi Transfrontier Park, Botswana.","PeriodicalId":155392,"journal":{"name":"Biodiversity Observations","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128390134","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
CYCAD SEED DISPERSAL: THE IMPORTANCE OF LARGE FRUGIVOROUS BIRDS 苏铁种子传播:大型食果鸟类的重要性
Biodiversity Observations Pub Date : 2018-07-06 DOI: 10.15641/BO.V9I0.503
C. Symes
{"title":"CYCAD SEED DISPERSAL: THE IMPORTANCE OF LARGE FRUGIVOROUS BIRDS","authors":"C. Symes","doi":"10.15641/BO.V9I0.503","DOIUrl":"https://doi.org/10.15641/BO.V9I0.503","url":null,"abstract":"Observations of relatively large frugivorous birds, e.g. Purple-crested Turaco, feeding on cycad fruit are provided and contextualized in the important role they play in seed dispersal.","PeriodicalId":155392,"journal":{"name":"Biodiversity Observations","volume":"79 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121441063","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
THE STORY OF THE SNAIL AND THE GECKO EGG. 蜗牛和壁虎蛋的故事。
Biodiversity Observations Pub Date : 2018-07-05 DOI: 10.15641/BO.V9I0.497
W. Conradie, D. Herbert
{"title":"THE STORY OF THE SNAIL AND THE GECKO EGG.","authors":"W. Conradie, D. Herbert","doi":"10.15641/BO.V9I0.497","DOIUrl":"https://doi.org/10.15641/BO.V9I0.497","url":null,"abstract":"<jats:p>None</jats:p>","PeriodicalId":155392,"journal":{"name":"Biodiversity Observations","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121277259","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Common Fiscal using man-made object during feeding. 常见的财政使用人造物体期间喂养。
Biodiversity Observations Pub Date : 2018-02-07 DOI: 10.15641/bo.v9i0.550
D. D. Swardt
{"title":"Common Fiscal using man-made object during feeding.","authors":"D. D. Swardt","doi":"10.15641/bo.v9i0.550","DOIUrl":"https://doi.org/10.15641/bo.v9i0.550","url":null,"abstract":"de Swardt (2016) reported on a Common Fiscal Lanuis collaris impaling its prey on thorny objects such as Acacia thorns or on the barbs of barbed wire fences.  It was always speculated that the shrikes used the thorns of trees or wires to have a better hold on the food item during feeding (see references in de Swardt 2016; Dean 2005).","PeriodicalId":155392,"journal":{"name":"Biodiversity Observations","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123908699","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Weavers as prey of Barn Owls. 织工是仓鸮的猎物。
Biodiversity Observations Pub Date : 2018-01-30 DOI: 10.15641/BO.V9I0.509
H. Oschadleus
{"title":"Weavers as prey of Barn Owls.","authors":"H. Oschadleus","doi":"10.15641/BO.V9I0.509","DOIUrl":"https://doi.org/10.15641/BO.V9I0.509","url":null,"abstract":"Barn Owls Tyto alba are widespread globally, and feed largely on rodents, but also birds. In Africa, weavers are an important component of avian prey. 44 studies were found that list weavers as prey of Barn Owls, with 11 species of Ploceidae weavers identified to species level, although there are likely many other weaver species that have been taken but not yet identified. Hunting strategies of the Barn Owl are taking weavers at their nests at night (four records), or taking roosting weavers from reedbeds. Barn Owls have been recorded at Red-billed Quelea Quelea quelea colonies, where they presumably pick up recently fledged juveniles.","PeriodicalId":155392,"journal":{"name":"Biodiversity Observations","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115933768","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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