African Journal of Herpetology最新文献_第5页

Leopard tortoise Stigmochelys pardalis (Bell, 1928) mortality caused by electrified fences in central South Africa and its impact on tortoise demography 南非中部电气化围栏造成的豹龟(stimochelys pardalis, Bell, 1928)死亡率及其对龟类人口统计学的影响

IF 1.5 4区生物学

African Journal of Herpetology Pub Date : 2021-01-02 DOI: 10.1080/21564574.2020.1860140

Sharon Holt, L. Horwitz, B. Wilson, D. Codron

{"title":"Leopard tortoise Stigmochelys pardalis (Bell, 1928) mortality caused by electrified fences in central South Africa and its impact on tortoise demography","authors":"Sharon Holt, L. Horwitz, B. Wilson, D. Codron","doi":"10.1080/21564574.2020.1860140","DOIUrl":"https://doi.org/10.1080/21564574.2020.1860140","url":null,"abstract":"ABSTRACT The leopard tortoise (Stigmochelys pardalis) is among the most ubiquitously distributed chelonian species in Africa. As with other chelonians, however, the species’ slow growth rate, coupled with low survivorship of juveniles, make it susceptible to declines under regimes of environmental perturbation. Here we studied the impact of electrified fences, a key source of mortality for many South African terrestrial vertebrate taxa, on leopard tortoise mortality in the Free State Province (Jacobsdal district) and Northern Cape Province (Strydenburg district), and its implications for survivorship of this population. Our results show a strong selection bias towards larger (breeding age) individuals that, given the life history of the species, should have strong (negative) consequences for populations. Using data for tortoise populations from other regions as a baseline for survivorship rates in populations unaffected by fencing, we derived a size-structure matrix model to evaluate the impact on population growth rates. Population projections, taking into account variation in survivorship and reproductive rates across and within size classes, indicated substantially higher risk of negative population growth (and eventual extinction) in populations affected by electrified fences. These results confirm that fencing is a conservation problem for the leopard tortoise population in this, and probably other regions, and highlights an urgent need for more intensive regulation of electrified fencing practices among landowners.","PeriodicalId":49247,"journal":{"name":"African Journal of Herpetology","volume":"70 1","pages":"32 - 52"},"PeriodicalIF":1.5,"publicationDate":"2021-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/21564574.2020.1860140","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44358793","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Testing assertions of dietary specialisation: a case study of the diet of Aparallactus capensis 饮食专业化断言的检验——以capensis Apallactus的饮食为例

IF 1.5 4区生物学

African Journal of Herpetology Pub Date : 2021-01-02 DOI: 10.1080/21564574.2021.1886185

B. Maritz, Aadam Rawoot, R. van Huyssteen

{"title":"Testing assertions of dietary specialisation: a case study of the diet of Aparallactus capensis","authors":"B. Maritz, Aadam Rawoot, R. van Huyssteen","doi":"10.1080/21564574.2021.1886185","DOIUrl":"https://doi.org/10.1080/21564574.2021.1886185","url":null,"abstract":"ABSTRACT The lack of detailed natural history information required to precisely characterise the diets of many organisms often results in the use of generalised descriptions of those diets. These descriptions can become dogmatic, and should be challenged with novel observational data when those data become available. We tested the characterisation of cape centipede eaters (Aparallactus capensis) as centipede-eating specialists that consume centipedes to the exclusion of other prey types. We dissected 62 preserved A. capensis specimens and identified stomach contents. Fifteen specimens contained a total of 16 prey items, all of which were identifiable as centipedes. Taking a simulation approach, we calculate the probability of all known wild prey items (n = 21) being centipedes under a range of different simulated diets. We show that if cape centipede eaters do eat non-centipede prey, they do so very infrequently. Although all reported prey items for A. capensis are from the order Scolopendromorpha, a survey of 453 citizen science records of South African centipedes suggests that members of this order account for two thirds of all observations. These data do not allow us to reject the hypothesis that cape centipede eaters consume different centipede prey proportionally to what the encounter.","PeriodicalId":49247,"journal":{"name":"African Journal of Herpetology","volume":"70 1","pages":"61 - 67"},"PeriodicalIF":1.5,"publicationDate":"2021-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/21564574.2021.1886185","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45785588","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Taxonomic revision of the Jita snakes (Lamprophiidae: Boaedon) from São Tomé and Príncipe (Gulf of Guinea), with the description of a new species <s:1> o tom<s:1>和Príncipe(几内亚湾)吉塔蛇(lamprophidae: Boaedon)的分类学修订，并附一新种的描述

IF 1.5 4区生物学

African Journal of Herpetology Pub Date : 2021-01-02 DOI: 10.1080/21564574.2020.1832152

L. Ceríaco, Ana Lisette Arellano, Robert C. Jadin, M. P. Marques, Diogo Parrinha, J. Hallermann

{"title":"Taxonomic revision of the Jita snakes (Lamprophiidae: Boaedon) from São Tomé and Príncipe (Gulf of Guinea), with the description of a new species","authors":"L. Ceríaco, Ana Lisette Arellano, Robert C. Jadin, M. P. Marques, Diogo Parrinha, J. Hallermann","doi":"10.1080/21564574.2020.1832152","DOIUrl":"https://doi.org/10.1080/21564574.2020.1832152","url":null,"abstract":"ABSTRACT The taxonomic status of the São Tomé and Príncipe islands ‘Cobras Jitas’, genus Boaedon, has been a subject of confusion. Historically, these island populations have been referred to as part of either the Boaedon fuliginosus species complex or Boaedon capensis species complex, two of the most taxonomically challenging groups of African snakes, or considered a distinct taxonomic entity, B. bedriagae. Here we review the São Tomé and Príncipe populations through a combination of morphological and molecular data. Our results suggest that each island population represents a unique species. After a thorough review of the taxonomic and nomenclatural history of the group, we revalidate B. bedriagae, restricting the application of this name to the São Tomé population by the designation of a lectotype. We also describe the Príncipe population as a new species, Boaedon mendesi sp. nov. This description has implications to our understanding of the diversity and phylogeographic patterns of the Gulf of Guinea Oceanic Islands.","PeriodicalId":49247,"journal":{"name":"African Journal of Herpetology","volume":"70 1","pages":"1 - 31"},"PeriodicalIF":1.5,"publicationDate":"2021-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/21564574.2020.1832152","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43394105","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Species-specific or assemblage-wide decline? The case of Arthroleptides dutoiti Loveridge, 1935 and the amphibian assemblage of Mount Elgon, Kenya 物种特异性还是群体性衰退？Arthroleptides dutoiti Loveridge的案例，1935年和肯尼亚埃尔贡山的两栖动物群落

IF 1.5 4区生物学

African Journal of Herpetology Pub Date : 2021-01-02 DOI: 10.1080/21564574.2021.1891977

J. M. Ngwava, C. D. Barratt, E. Boakes, Beryl A. Bwong, A. Channing, Olivia Couchman, S. Lötters, P. Malonza, V. Muchai, Julius K. Nguku, Joash O. Nyamache, N. Owen, V. Wasonga, S. Loader

{"title":"Species-specific or assemblage-wide decline? The case of Arthroleptides dutoiti Loveridge, 1935 and the amphibian assemblage of Mount Elgon, Kenya","authors":"J. M. Ngwava, C. D. Barratt, E. Boakes, Beryl A. Bwong, A. Channing, Olivia Couchman, S. Lötters, P. Malonza, V. Muchai, Julius K. Nguku, Joash O. Nyamache, N. Owen, V. Wasonga, S. Loader","doi":"10.1080/21564574.2021.1891977","DOIUrl":"https://doi.org/10.1080/21564574.2021.1891977","url":null,"abstract":"ABSTRACT The frog Arthroleptides dutoiti Loveridge, 1935, endemic to Mount Elgon, East Africa was last collected in 1962 and has not been observed since. The species is regarded as Critically Endangered by the IUCN Red List and is a priority species on the Zoological Society of London’s EDGE (Evolutionarily Distinct, Globally Endangered) project, given its Red List status and phylogenetic distinctiveness. We analyse temporal patterns of abundance (1934–2014) of A. dutoiti and the remainder of the Mount Elgon amphibian assemblage to infer the probability of re-encountering A. dutoiti and assess whether declines are species specific to A. dutoiti, or whether they are assemblage-wide phenomena. Our results show that for localities where surveys have been repeatedly conducted, A. dutoiti is likely to be locally extinct. Declines are observed in other Mount Elgon amphibians, encompassing both specialists and generalists. Causal factors for declines are unknown, but habitat change might be important, given the high degree of forest loss in the area, especially since the turn of the 20th century. Urgent sampling of preferred microhabitats of A. dutoiti at the type locality and surrounding areas beyond those included in our study are required to determine whether or not the species is extinct. Impacts on other taxonomic groups would also be useful to understand so that it can be determined how broad the changes are for the Mount Elgon biota.","PeriodicalId":49247,"journal":{"name":"African Journal of Herpetology","volume":"70 1","pages":"53 - 60"},"PeriodicalIF":1.5,"publicationDate":"2021-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/21564574.2021.1891977","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42768631","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

A pilot study on the use of DNA metabarcoding for diet analysis in a montane amphibian population from North Africa DNA代谢编码用于北非山地两栖动物种群饮食分析的初步研究

IF 1.5 4区生物学

African Journal of Herpetology Pub Date : 2021-01-02 DOI: 10.1080/21564574.2021.1921058

Ana Pereira, Mohamed Amine Samlali, Abderrahim S'khifa, T. Slimani, D. Harris

引用次数: 4

William Roy Branch: Bibliography, taxonomic discoveries and patronyms 威廉罗伊分支:参考书目，分类发现和父名

IF 1.5 4区生物学

African Journal of Herpetology Pub Date : 2020-08-31 DOI: 10.1080/21564574.2020.1798291

M. Bates, A. Bauer

{"title":"William Roy Branch: Bibliography, taxonomic discoveries and patronyms","authors":"M. Bates, A. Bauer","doi":"10.1080/21564574.2020.1798291","DOIUrl":"https://doi.org/10.1080/21564574.2020.1798291","url":null,"abstract":"ABSTRACT William Roy Branch (1946–2018) was the most prolific Africa-based herpetologist of his era. His 659 herpetological contributions, spanning 47 years, include field and photographic guides, taxonomic revisions, phylogenies, ecological studies, annotated checklists, conservation assessments, type catalogues, notes on natural history, geographical distribution and snakebite, book reviews, editorials, obituaries, tributes and prefaces. Bill authored eight book titles, including his monumental Field Guide to Snakes and other Reptiles of Southern Africa (1988, revised in 1998), The Dangerous Snakes of Africa with Steve Spawls (1995, revised in 2020) and Tortoises, Terrapins and Turtles of Africa (2008). He edited the Red Data Book – Reptiles and Amphibians (1988) and was a co-editor of its successor, the Atlas and Red List of the Reptiles of South Africa, Lesotho and Swaziland (2014). In addition to a corpus of faunal and systematic works, the topics of his publications also include reptile husbandry, karyology, snake hemipenes, snake venom, reptile diets and reproduction. Appendices presented here include a detailed bibliography of his herpetological publications; a chronological list of all the reptile and amphibian taxa he described; and details of patronyms named in his honour. Bill described 68 new taxa comprising 51 species (37 lizards [18 geckos], 7 chelonians, 4 snakes, 3 frogs), 15 genera (14 lizards, 1 snake), one subfamily (Platysaurinae) and one family (Xenodactylidae). Additional species bearing his name are expected to be published within the next few years. He was the most productive South Africa-based author of reptile names (65) in the modern era. As of 2020, he had been honoured by seven patronyms (one lizard, three snakes and one frog species, and a lizard and snake genus).","PeriodicalId":49247,"journal":{"name":"African Journal of Herpetology","volume":"69 1","pages":"119 - 150"},"PeriodicalIF":1.5,"publicationDate":"2020-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/21564574.2020.1798291","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45769141","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

A tribute to William Roy Branch (1946–2018): Doyen of African Herpetology 致敬威廉·罗伊·布兰奇(1946-2018):非洲爬虫学元老

IF 1.5 4区生物学

African Journal of Herpetology Pub Date : 2020-08-11 DOI: 10.1080/21564574.2020.1798292

M. Bates, A. Bauer

引用次数: 2

Kissing cousins: a review of the African genus Limnophis Günther, 1865 (Colubridae: Natricinae), with the description of a new species from north-eastern Angola 亲亲表亲:非洲Limnophis g<e:1> nther属的回顾，1865 (Colubridae: Natricinae)，包括安哥拉东北部一新种的描述

IF 1.5 4区生物学

African Journal of Herpetology Pub Date : 2020-07-08 DOI: 10.1080/21564574.2020.1782483

W. Conradie, V. Deepak, Chad Keates, D. Gower

{"title":"Kissing cousins: a review of the African genus Limnophis Günther, 1865 (Colubridae: Natricinae), with the description of a new species from north-eastern Angola","authors":"W. Conradie, V. Deepak, Chad Keates, D. Gower","doi":"10.1080/21564574.2020.1782483","DOIUrl":"https://doi.org/10.1080/21564574.2020.1782483","url":null,"abstract":"ABSTRACT The African natricine genus Limnophis is represented by two species: Limnophis bicolor Günther, 1865 and Limnophis bangweolicus (Mertens, 1936). They are stout-bodied, semi-aquatic snakes that mostly feed on fish and amphibians, and occur from Botswana and Namibia in the south throughout most of Zambia and Angola to the Democratic Republic of the Congo in the north. We gathered new material from the ranges of both species in Angola and Zambia in order to examine their taxonomic status and identify any overlooked diversity. We constructed a phylogenetic tree, based on three mitochondrial genes (16S, cytb, ND4) and one nuclear gene (cmos), which includes the first DNA sequence data for Limnophis. Three well-supported lineages were identified, each representing separate species. The taxonomic status of the two currently recognised species is validated, and we describe a new species of Limnophis from north-eastern Angola. The new species is distinguished from the others by the combination of distinct ventral and lateral head colouration and patterning, differences in head and ventral scalation, and uncorrected pairwise genetic distances to both L. bicolor and L. bangweolicus of 5.4–8.1% in cytb, 6.1–8.4% in ND4 and 2.7–8.3% in 16S.","PeriodicalId":49247,"journal":{"name":"African Journal of Herpetology","volume":"69 1","pages":"107 - 79"},"PeriodicalIF":1.5,"publicationDate":"2020-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/21564574.2020.1782483","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45604729","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 8

Rediscovery, range extension, habitat and phylogenetic relation of the endemic Scaled Sandveld Lizard Nucras scalaris Laurent, 1964 (Sauria: Lacertidae) in the central Angolan plateau 安哥拉中部高原1964年特有鳞片沙蜥Nucras scalaris Laurent（Sauria：蜥蜴科）的再发现、范围扩展、栖息地和系统发育关系

IF 1.5 4区生物学

African Journal of Herpetology Pub Date : 2020-07-08 DOI: 10.1080/21564574.2020.1778108

Ninda L. Baptista, K. Tolley, M. Bluhm, M. Finckh, W. Branch

{"title":"Rediscovery, range extension, habitat and phylogenetic relation of the endemic Scaled Sandveld Lizard Nucras scalaris Laurent, 1964 (Sauria: Lacertidae) in the central Angolan plateau","authors":"Ninda L. Baptista, K. Tolley, M. Bluhm, M. Finckh, W. Branch","doi":"10.1080/21564574.2020.1778108","DOIUrl":"https://doi.org/10.1080/21564574.2020.1778108","url":null,"abstract":"ABSTRACT The Scaled Sandveld Lizard Nucras scalaris Laurent, 1964 is a poorly known lacertid endemic to north-eastern Angola and is only known from the type series collected more than half a century ago. The original description provided a comprehensive morphological description, but there was a lack of information regarding its evolutionary relationships and habitat associations. A recent discovery of N. scalaris from Cusseque, Bié Province, on the central Angolan plateau provided the opportunity to address some knowledge gaps of this species. A phylogenetic analysis confirmed its distinctiveness at the species level. Despite a limited dataset, the analysis suggests that N. scalaris is sister to N. broadleyi rather than N. lalandii, the latter having been assumed to be the sister species, because of morphological similarity between them. The new record of N. scalaris represents a range extension of more than 350 km to the southwest and extends the elevation range to 1 570 m above sea level, compared to previous known localities at about 1 300 m above sea level (Alto Cuílo and Alto Chicapa, in Lunda Sul Province). The specimen also provides new information on live coloration, as well as the habitat association of grassy shrubland that is dominated by geoxylic suffrutices (the so-called ‘underground forests’) characteristic of the Angolan Miombo Woodlands. This new information raises the question whether poor survey data have led to an under-estimation of faunal diversity in this peculiar and overlooked vegetation type, and reinforces the need for further surveys which could highlight the importance of this habitat.","PeriodicalId":49247,"journal":{"name":"African Journal of Herpetology","volume":"69 1","pages":"12 - 28"},"PeriodicalIF":1.5,"publicationDate":"2020-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/21564574.2020.1778108","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44571155","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6

A review of the Angolan House snakes, genus Boaedon Duméril, Bibron and Duméril (1854) (Serpentes: Lamprophiidae), with description of three new species in the Boaedon fuliginosus (Boie, 1827) species complex 安哥拉家蛇Boaedon Duméril、Bibron和Dumériel属（1854年）的综述（蛇类：Lamophinidae），并描述了Boaedon fuliginosus（Boie，1827年）物种复合体中的三个新种

IF 1.5 4区生物学

African Journal of Herpetology Pub Date : 2020-07-08 DOI: 10.1080/21564574.2020.1777470

J. Hallermann, L. Ceríaco, A. Schmitz, R. Ernst, W. Conradie, L. Verburgt, M. P. Marques, A. Bauer

{"title":"A review of the Angolan House snakes, genus Boaedon Duméril, Bibron and Duméril (1854) (Serpentes: Lamprophiidae), with description of three new species in the Boaedon fuliginosus (Boie, 1827) species complex","authors":"J. Hallermann, L. Ceríaco, A. Schmitz, R. Ernst, W. Conradie, L. Verburgt, M. P. Marques, A. Bauer","doi":"10.1080/21564574.2020.1777470","DOIUrl":"https://doi.org/10.1080/21564574.2020.1777470","url":null,"abstract":"ABSTRACT An integrative taxonomic review of the genus Boaedon in Angola is provided. A molecular phylogeny, based on 99 genetic samples for which the mitochondrial markers 16S rRNA have been sequenced, reveals 23 monophyletic species-level groups in Africa and indicates the presence of nine species in Angola. Based on both phylogenetic and morphological data, we revalidate and designate a neotype for B. angolensis, describe three new species for Angola (e.g. B. bocagei sp. nov., B. branchi sp. nov., and B. fradei sp. nov.), revalidate B. variegatus from its synonymy with B. lineatus and designate a lectotype for this taxon, and identify B. lineatus var. lineolatus as a junior synonym of B. variegatus. The taxonomic status of the recently described B. paralineatus from Central Africa is discussed with respect to the more inclusive B. lineatus group. Moreover, we report on a new country record for Angola, namely B. mentalis, which we elevate here to full species and discuss the taxonomic status of this species in southern Africa. Finally, we provide an identification key and updated distribution maps for all Boaedon species occurring in Angola, including the Cabinda enclave.","PeriodicalId":49247,"journal":{"name":"African Journal of Herpetology","volume":"69 1","pages":"29 - 78"},"PeriodicalIF":1.5,"publicationDate":"2020-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/21564574.2020.1777470","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44048006","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 18