African Journal of Herpetology最新文献

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A new species of threadsnake in the genus Myriopholis (Squamata: Scolecophidia: Leptotyplophidae) from southeastern Kenya 标题肯尼亚东南部丝蛇属一新种(鳞片目:丝蛇科:细丝蛇科)
IF 1.5 4区 生物学
African Journal of Herpetology Pub Date : 2023-08-04 DOI: 10.1080/21564574.2023.2227189
P. Malonza
{"title":"A new species of threadsnake in the genus Myriopholis (Squamata: Scolecophidia: Leptotyplophidae) from southeastern Kenya","authors":"P. Malonza","doi":"10.1080/21564574.2023.2227189","DOIUrl":"https://doi.org/10.1080/21564574.2023.2227189","url":null,"abstract":"ABSTRACT A new threadsnake species from the family Leptotyphlopidae, Myriopholis mackayi sp. nov., is described from the Tsavo area in southeastern Kenya. Myriopholis mackayi sp. nov. is a member of the Myriopholis longicauda group on the basis of having a low number of middorsal scales, a discrete frontal shield, a rounded snout, a small anterior supralabial, a moderate posterior supralabial, semilunar cloacal shield, and pinkish colouration in life (brown dorsum and tan venter after preservation). The species is known from a xeric habitat at moderate elevation. It is highly recommended that future phylogenetic work is done to establish its taxonomic relations to other leptotyphlopids.","PeriodicalId":49247,"journal":{"name":"African Journal of Herpetology","volume":" ","pages":""},"PeriodicalIF":1.5,"publicationDate":"2023-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48819248","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: 0
Notes on lung development in South African ghost frogs (Anura: Heleophrynidae) 南非鬼蛙肺发育的注释(无尾目:鬼蛙科)
IF 1.5 4区 生物学
African Journal of Herpetology Pub Date : 2023-04-25 DOI: 10.1080/21564574.2023.2191602
Jackson R. Phillips, Jens Reissig, Gary K. Nicolau
{"title":"Notes on lung development in South African ghost frogs (Anura: Heleophrynidae)","authors":"Jackson R. Phillips, Jens Reissig, Gary K. Nicolau","doi":"10.1080/21564574.2023.2191602","DOIUrl":"https://doi.org/10.1080/21564574.2023.2191602","url":null,"abstract":"ABSTRACT Lungs are a prototypical trait of most tetrapods, but some amphibians have become secondarily lungless over evolutionary time. Anuran (frog) tadpoles offer an opportunity to examine lung loss from an evolutionary perspective, because there are many independent instances where lungs are not inflated until adulthood, and so are functionally lost. Lung loss is typically associated with living in fast-flowing streams, and so we examined larval lung development in the stream specialist family Heleophrynidae. We find that one genus, Hadromophryne Van Dijk, 2008, has large lungs as a tadpole, while the other genus, Heleophryne Sclater, 1898, has much smaller, stunted lung buds. We further speculate how this information changes our understanding of how the specialised torrent form has evolved in this specialised group.","PeriodicalId":49247,"journal":{"name":"African Journal of Herpetology","volume":"72 1","pages":"81 - 90"},"PeriodicalIF":1.5,"publicationDate":"2023-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47267029","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: 0
Detailed description and observations of the tadpole of Amnirana albolabris (Anura: Ranidae) from southeastern Gabon 加蓬东南部白蛙蝌蚪的详细描述和观察
IF 1.5 4区 生物学
African Journal of Herpetology Pub Date : 2023-04-19 DOI: 10.1080/21564574.2023.2191598
J. G. Larson, Breda M Zimkus
{"title":"Detailed description and observations of the tadpole of Amnirana albolabris (Anura: Ranidae) from southeastern Gabon","authors":"J. G. Larson, Breda M Zimkus","doi":"10.1080/21564574.2023.2191598","DOIUrl":"https://doi.org/10.1080/21564574.2023.2191598","url":null,"abstract":"ABSTRACT We provide an expanded description of the tadpole of Amnirana albolabris (Ranidae) that includes external linear morphometrics and colouration across a developmental series ranging from Gosner stages 26–42. This description is based on material collected in Batéké Plateau National Park in south-eastern Gabon. The diurnal tadpoles are strikingly bright orange in life, a colouration that provides effective crypsis for the tannic waters in which they live. We also provide a comparative table for all of the described Amnirana tadpoles. The tadpole of A. albolabris can be identified in life by its unique colouration or in preservative by the seven prominent skin glands, assumed to contain defensive toxins.","PeriodicalId":49247,"journal":{"name":"African Journal of Herpetology","volume":"72 1","pages":"73 - 80"},"PeriodicalIF":1.5,"publicationDate":"2023-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44621824","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: 0
A Complete Guide to the Snakes of Southern Africa, Third Edition 非洲南部蛇的完整指南,第三版
IF 1.5 4区 生物学
African Journal of Herpetology Pub Date : 2023-04-11 DOI: 10.1080/21564574.2023.2195775
B. Maritz
{"title":"A Complete Guide to the Snakes of Southern Africa, Third Edition","authors":"B. Maritz","doi":"10.1080/21564574.2023.2195775","DOIUrl":"https://doi.org/10.1080/21564574.2023.2195775","url":null,"abstract":"","PeriodicalId":49247,"journal":{"name":"African Journal of Herpetology","volume":"72 1","pages":"91 - 93"},"PeriodicalIF":1.5,"publicationDate":"2023-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47063572","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: 0
Genetic diversity of the mantellid frog Blommersia blommersae, and description of a new anuran species from south-eastern Madagascar 马达加斯加东南部斑点蛙的遗传多样性和一个新的无尾蛙种的描述
IF 1.5 4区 生物学
African Journal of Herpetology Pub Date : 2023-03-13 DOI: 10.1080/21564574.2023.2165547
M. Vences, Moritz Armerding, J. Köhler, F. Glaw
{"title":"Genetic diversity of the mantellid frog Blommersia blommersae, and description of a new anuran species from south-eastern Madagascar","authors":"M. Vences, Moritz Armerding, J. Köhler, F. Glaw","doi":"10.1080/21564574.2023.2165547","DOIUrl":"https://doi.org/10.1080/21564574.2023.2165547","url":null,"abstract":"ABSTRACT A range-wide assessment of genetic variation in one mitochondrial (16S rRNA) and one nuclear-encoded (Rag-1) gene fragment of the widespread Madagascar frog Blommersia blommersae revealed the presence of up to 12 deep genetic lineages. Many of these differed by genetic distances >3% in the 16S gene. In the Ranomafana area in the southern central east of Madagascar, two mitochondrial lineages differing by 1.2–1.8% in 16S occurred in close syntopy across multiple sites. A phylogeny of representative samples based on multiple mitochondrial genes supported three main mitochondrial clades within B. blommersae, with lineages from the (i) north, (ii) north and northern central east, and (iii) southern central east, respectively. In addition, one lineage from Sainte Luce in the south-east was sister to all other species of Blommersia, and thus clearly not belonging to B. blommersae, to which it has been tentatively assigned previously. Except for the Sainte Luce population, most of the mitochondrial lineages did not show a concordant and consistent differentiation in Rag-1 and no obvious morphological differences were detected among the lineages. We therefore refrain from taxonomic conclusions for them at this time, although indications exist that the populations from the northern central east and southern central east may show certain differences in relative note duration of advertisement calls, which require further study. However, the Sainte Luce individuals were highly divergent in 16S (>10%) and Rag-1, phylogenetically isolated, and characterised by differences in colour pattern. This lineage represents the most evolutionarily divergent species of Blommersia known to date and is herein formally named and described as Blommersia dupreezi sp. nov.","PeriodicalId":49247,"journal":{"name":"African Journal of Herpetology","volume":"72 1","pages":"47 - 72"},"PeriodicalIF":1.5,"publicationDate":"2023-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48016639","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
Call repertoire of Ptychadena uzungwensis (Anura: Ptychadenidae) to complement molecular and morphological identification of the species from the Soutpansberg, South Africa. 将Ptychadena uzungwensis(无尾目:Ptychadidae)的名录称为名录,以补充南非Soutpansberg物种的分子和形态鉴定。
IF 1.5 4区 生物学
African Journal of Herpetology Pub Date : 2023-03-03 DOI: 10.1080/21564574.2022.2161015
Ferdi De Lange, E. Netherlands, L. D. du Preez
{"title":"Call repertoire of Ptychadena uzungwensis (Anura: Ptychadenidae) to complement molecular and morphological identification of the species from the Soutpansberg, South Africa.","authors":"Ferdi De Lange, E. Netherlands, L. D. du Preez","doi":"10.1080/21564574.2022.2161015","DOIUrl":"https://doi.org/10.1080/21564574.2022.2161015","url":null,"abstract":"ABSTRACT The identity of adults and tadpoles of Ptychadena uzungwensis from the Soutpansberg range in northern South Africa was confirmed using a combination of morphological characters and molecular analysis. Detailed vocalisation analysis was made and used to complement existing species identification methods. This study confirms the presence of P. uzungwensis in South Africa. Sound recordings obtained by way of directional manual recordings were used to analyse call structure and call type while Passive Acoustic Monitoring with Song Meter® technology were used to survey circadian call patterns. Following confirmation of species identity, the detailed vocalisation analysis indicated a much more diverse repertoire than previously known. Three call types were observed with Type A consisting of two or three compressed notes; Type B consisting of a multi-note vocalisation, containing multiple pulses and notes produced in rapid succession; and Type C being a multi-note vocalisation consisting of rapidly released, randomly-spaced single notes. Detailed descriptions of call repertoires, including patterns and call types are useful for species identification and for use in comparison studies.","PeriodicalId":49247,"journal":{"name":"African Journal of Herpetology","volume":"72 1","pages":"33 - 46"},"PeriodicalIF":1.5,"publicationDate":"2023-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48719677","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: 0
An inventory of amphibian roadkill in the western Soutpansberg, Limpopo province, South Africa 南非林波波省南潘斯堡西部被公路撞死的两栖动物清单
IF 1.5 4区 生物学
African Journal of Herpetology Pub Date : 2022-09-27 DOI: 10.1080/21564574.2022.2115154
Thabo I Hlatshwayo, E. Stam, Wendy J. Collinson-Jonker, Abeda Dawood
{"title":"An inventory of amphibian roadkill in the western Soutpansberg, Limpopo province, South Africa","authors":"Thabo I Hlatshwayo, E. Stam, Wendy J. Collinson-Jonker, Abeda Dawood","doi":"10.1080/21564574.2022.2115154","DOIUrl":"https://doi.org/10.1080/21564574.2022.2115154","url":null,"abstract":"ABSTRACT Increasing linear infrastructure development often impacts habitats and wildlife negatively. Roads, in particular, have numerous threats to wildlife with the most noticeable direct impact being roadkill, and this requires urgent conservation interventions. To assess amphibian roadkill, driven surveys were conducted on three regional roads around the western Soutpansberg in the Vhembe Biosphere Reserve, an important area for biodiversity conservation in South Africa. Six habitat types were identified along the monitored road stretches and their influence on the occurrence of amphibian roadkill was determined. The results comprised an inventory of 248 roadkill specimens, belonging to eight species and six families, and one unidentified specimen. Roadkill was strongly influenced by season, with the greatest roadkill rate recorded in the early wet season (0.051 roadkill km–1 day–1) compared to the late wet season (0.019 roadkill km–1 day–1). Amphibian roadkill patterns were related to roadside habitat. Of the roadside habitat types identified, road sections adjacent to waterbodies had the highest number of roadkill, followed by road sections closer to open savanna bushland. Roadkill frequency was low in areas that were partly located in human modified habitats (residential and agricultural areas) but highest in natural landscapes (near waterbodies and savanna bushland). The study provides baseline data that confirms the potential threat of roads and their users on the persistence of amphibians in the Vhembe Biosphere Reserve and presents the first systematic inventory of amphibian roadkill in the western Soutpansberg, South Africa.","PeriodicalId":49247,"journal":{"name":"African Journal of Herpetology","volume":"72 1","pages":"16 - 32"},"PeriodicalIF":1.5,"publicationDate":"2022-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44982177","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
Is it like night and day? Nocturnal versus diurnal perch use by dwarf chameleons (Bradypodion pumilum) 这就像白天和黑夜吗?矮变色龙夜间与日间栖息的对比(Bradypodion pumilum)
IF 1.5 4区 生物学
African Journal of Herpetology Pub Date : 2022-09-03 DOI: 10.1080/21564574.2022.2098392
K. Tolley
{"title":"Is it like night and day? Nocturnal versus diurnal perch use by dwarf chameleons (Bradypodion pumilum)","authors":"K. Tolley","doi":"10.1080/21564574.2022.2098392","DOIUrl":"https://doi.org/10.1080/21564574.2022.2098392","url":null,"abstract":"ABSTRACT Arboreal chameleons must navigate a complex, three-dimensional landscape consisting of trees, bushes and/or grasses of various sizes. This complexity equates to the microhabitat of chameleons, that is, the branches upon which they perch and through which they move. Therefore, chameleons rely on their ability to grip perches available to them, and this is evident by their specialised adaptations such as their prehensile tail and their grasping hands and feet. To date, ecological studies of chameleons have relied on gathering data on perch use only at night because locating chameleons during the daytime is extremely difficult. However, the night-time perch represents the sleeping perch of individuals, and this is not necessarily reflective of overall diel perch use. Many other arboreal reptiles are constrained to using thin perches at night, but by day their microhabitat is more variable, using thicker branches, limbs or tree trunks. To assess whether this well-entrenched paradigm (night-time perch use being constrained to thin perches) also extends to fully arboreal chameleons, daytime and night-time perch diameters were measured for the Cape Dwarf Chameleon, Bradypodion pumilum, and were compared using analyses of variance statistical approaches. Neither perch diameters nor variance in perch diameters differed between the two photoperiods, and the variance in diameters of perches used was remarkably high. Despite this variance, there was a significant, positive relationship between body size and the diameter of perches used. Unlike other reptiles, the results show that for B. pumilum the night-time perch use is not different than diurnal perch use, and there appears to be a fairly wide range of perches used by chameleons of a given body size over both photoperiods. Nevertheless, the positive trend for chameleons of larger body sizes to choose larger perches than smaller chameleons implies that there are some upper and lower constraints for the diameters of perches used, possibly relating to their ability to effectively grip a range of perch sizes.","PeriodicalId":49247,"journal":{"name":"African Journal of Herpetology","volume":"72 1","pages":"1 - 15"},"PeriodicalIF":1.5,"publicationDate":"2022-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44051452","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: 0
Thermal physiology of Tropical House Geckos (Hemidactylus mabouia) in a cool temperate region of South Africa. 南非寒温带热带壁虎的热生理。
IF 1.5 4区 生物学
African Journal of Herpetology Pub Date : 2022-08-18 DOI: 10.1080/21564574.2022.2098393
S. Welman, I. Ibarzabal
{"title":"Thermal physiology of Tropical House Geckos (Hemidactylus mabouia) in a cool temperate region of South Africa.","authors":"S. Welman, I. Ibarzabal","doi":"10.1080/21564574.2022.2098393","DOIUrl":"https://doi.org/10.1080/21564574.2022.2098393","url":null,"abstract":"ABSTRACT Temperature profoundly influences the functioning of ectotherms and understanding the thermal biology of invasive species affords valuable insights regarding the suitability of different habitats. Yet, this remains an understudied aspect in the field of invasion biology. Here, we investigated the thermal physiology of the highly invasive Tropical House Gecko (Hemidactylus mabouia) in a coastal region of South Africa. The study site is near to the southernmost extent of the species’ distribution and we expected the physiology of individuals at the study site to differ compared to that of individuals inhabiting tropical regions. Relative to tropical geckos, we observed a decrease of 3.4°C in preferred body temperature (Tpref) to 24.0 °C, which was likely driven by selection for improved functioning within the cooler temperate climate. However, the lower (CTmin) and upper (CTmax) critical thermal limits were higher in geckos at the study site. CTmin was similar between sexes at 11.9 °C, whereas males had a higher CTmax by ≈ 1.9 °C reaching 39.7 °C. A broader tolerance range is typical of a highly variable climate, and we presume that the increase in CTmax allows geckos to better cope with occasional high temperatures. Further, sex-specific differences are uncommon in reptiles, but our study supports claims of improved heat tolerance in male geckos, argued to be related to their aggressive and territorial behaviour. The results also support claims that tropical geckos are more adaptable than previously thought, allowing them to invade new areas. Thereafter, their aggressive behaviour, dietary flexibility and year-round activity likely provides house geckos with a competitive advantage over some native reptiles.","PeriodicalId":49247,"journal":{"name":"African Journal of Herpetology","volume":"71 1","pages":"181 - 193"},"PeriodicalIF":1.5,"publicationDate":"2022-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42706545","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: 0
Digging adaptations evolved independently in two lineages of Psammophiid snake: evidence from cranial morphology Psammophid蛇两个谱系的挖掘适应能力独立进化:来自头骨形态学的证据
IF 1.5 4区 生物学
African Journal of Herpetology Pub Date : 2022-07-20 DOI: 10.1080/21564574.2022.2062459
Nick Sekits, Walter Tunnell-Wilson, Kate Jackson
{"title":"Digging adaptations evolved independently in two lineages of Psammophiid snake: evidence from cranial morphology","authors":"Nick Sekits, Walter Tunnell-Wilson, Kate Jackson","doi":"10.1080/21564574.2022.2062459","DOIUrl":"https://doi.org/10.1080/21564574.2022.2062459","url":null,"abstract":"ABSTRACT The Beaked Snakes (Rhamphiophis) are semi-fossorial snakes with reinforced snouts adapted for digging. The Skaapstekers (Psammophylax) are generalist terrestrial snakes. Both belong to the family, Psammophiidae. The Striped Beaked Snake (Kladirostratus acutus) was originally assigned to the genus Rhamphiophis, because of its beak-like snout. However, molecular evidence indicates that K. acutus is more closely related to Psammophylax. Thus, the “beak” of K. acutus must have evolved independently of that seen in Rhamphiophis. We studied the cranial morphology of K. acutus and representatives of Psammophylax and Rhamphiophis to identify possible traits that may reflect independent derivation of a beak-shaped snout relative to Rhamphiophis. We found that K. acutus retains four main cranial features in common with the Psammophylax: (1) an open fenestra between the premaxilla, nasals and septomaxilla, (2) a lack of fusion between the septomaxilla and the vertical lamina of the nasal, (3) the conchal processes of the septomaxilla extend beyond the dorsal margin of the septomaxilla and (4) a lack of contact between the prefrontals and the dorsal laminae of the nasals. Simultaneously, K. acutus displays traits associated with adaptation to semi-fossorial life in snakes such as a shortening of the maxilla, modification of the premaxilla, elongation of the nasal region, and a narrowing of the braincase.","PeriodicalId":49247,"journal":{"name":"African Journal of Herpetology","volume":"71 1","pages":"160 - 180"},"PeriodicalIF":1.5,"publicationDate":"2022-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44210541","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: 0
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