Pub Date : 2023-05-09DOI: 10.54905/disssi/v24i73/e40s1533
Soumyajit Chowdhury
{"title":"Using artificial light source as visual enhancement for predation by Oecophylla ants in Paren, Kalimpong, West Bengal","authors":"Soumyajit Chowdhury","doi":"10.54905/disssi/v24i73/e40s1533","DOIUrl":"https://doi.org/10.54905/disssi/v24i73/e40s1533","url":null,"abstract":"","PeriodicalId":48746,"journal":{"name":"Endangered Species Research","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2023-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74087183","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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 : 2023-05-06DOI: 10.54905/disssi/v24i73/e39s1531
Ashwini A Farkade, S. Bhandarkar, K. Sangve
{"title":"Diversity and abundance of ichthyofauna in Shekhdari dam, district Amravati, Maharashtra","authors":"Ashwini A Farkade, S. Bhandarkar, K. Sangve","doi":"10.54905/disssi/v24i73/e39s1531","DOIUrl":"https://doi.org/10.54905/disssi/v24i73/e39s1531","url":null,"abstract":"","PeriodicalId":48746,"journal":{"name":"Endangered Species Research","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2023-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74233083","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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 : 2023-04-27DOI: 10.54905/disssi/v24i73/e36s1526
Ranim Μ. Othman, M. Galiya, H. E. Laika, Zouher Almajid
{"title":"First record of hermaphroditism in Bullet tuna Auxis rochei in the Mediterranean Sea: Syrian marine waters","authors":"Ranim Μ. Othman, M. Galiya, H. E. Laika, Zouher Almajid","doi":"10.54905/disssi/v24i73/e36s1526","DOIUrl":"https://doi.org/10.54905/disssi/v24i73/e36s1526","url":null,"abstract":"","PeriodicalId":48746,"journal":{"name":"Endangered Species Research","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2023-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78031265","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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 : 2023-04-23DOI: 10.54905/disssi/v24i73/e35s1525
R. Vyas, Lalita Pal
{"title":"Spider (Arachnida: Araneae) Versus Snake (Reptilia: Squamata): A spider (Pholcus) feeding on a worm snake (Ramphotyphlops)","authors":"R. Vyas, Lalita Pal","doi":"10.54905/disssi/v24i73/e35s1525","DOIUrl":"https://doi.org/10.54905/disssi/v24i73/e35s1525","url":null,"abstract":"","PeriodicalId":48746,"journal":{"name":"Endangered Species Research","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2023-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73212897","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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}
Alshari et al. (2023; Endang Species Res 50:311-313) were able to collect 3 Fluvitrygon kittipongi specimens from the Pahang River, which were not available to us at the time of our study (Lim & Then 2022; Endang Species Res 48:43-50). The cytochrome c oxidase I (COI) sequences (or haplotypes) of these 3 stingrays were identical to each other but differed from the haplotypes of our Perak River specimens. The result of 100% similarity between COI sequences of our Perak River rays and the eDNA water samples isolated from Pahang River in our study was suggested by Alshari et al. (2023) as DNA contamination in our study, which is plausible. However, further population genetics studies would be necessary to ascertain that the Perak River haplotype does not occur in stingrays of the Pahang River.
Alshari et al. (2023;Endang Species Res 50:311-313)能够从彭恒河收集到3个Fluvitrygon kittipongi标本，这些标本在我们研究时是无法获得的(Lim & Then 2022;Endang Species Res 48:43-50)。这3种黄貂鱼的细胞色素c氧化酶I (COI)序列(或单倍型)相同，但与我们的霹雳河标本的单倍型不同。我们霹雳河射线的COI序列与我们研究中从彭亨河分离的eDNA水样100%相似的结果被Alshari et al.(2023)认为是我们研究中的DNA污染，这是合理的。然而，需要进一步的群体遗传学研究来确定霹雳河单倍型在彭恒河黄貂鱼中并不存在。
{"title":"Population genetics of freshwater stingray require investigation to confirm DNA contamination: Reply to Alshari et al. (2023)","authors":"KC Lim, AY Then","doi":"10.3354/esr01242","DOIUrl":"https://doi.org/10.3354/esr01242","url":null,"abstract":"Alshari et al. (2023; Endang Species Res 50:311-313) were able to collect 3 Fluvitrygon kittipongi specimens from the Pahang River, which were not available to us at the time of our study (Lim & Then 2022; Endang Species Res 48:43-50). The cytochrome c oxidase I (COI) sequences (or haplotypes) of these 3 stingrays were identical to each other but differed from the haplotypes of our Perak River specimens. The result of 100% similarity between COI sequences of our Perak River rays and the eDNA water samples isolated from Pahang River in our study was suggested by Alshari et al. (2023) as DNA contamination in our study, which is plausible. However, further population genetics studies would be necessary to ascertain that the Perak River haplotype does not occur in stingrays of the Pahang River.","PeriodicalId":48746,"journal":{"name":"Endangered Species Research","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2023-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86272235","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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}
Nfmah Alshari, Mhib Adnan, Jaf Jamaluddin, S. Lavoué, S. Nor
Recently, Lim & Then (2022; Endang Species Res 48:43-50) used an environmental DNA (eDNA) PCR-based method for detecting the presence of an endangered species of freshwater stingray, Fluvitrygon kittipongi (Dasyatidae), in the Pahang River basin, east Peninsular Malaysia. For that, they designed a species-specific pair of primers to amplify a 196 base pair (bp) fragment of the cytochrome c oxidase I (COI) gene. Lim & Then (2022) reported positive detection of this species along an upstream stretch of the Pahang River during the inter-monsoon and the southwest monsoon seasons, with the PCR-amplified eDNA sequences identical to the reference COI sequences of F. kittipongi collected from the Perak River basin, west Peninsular Malaysia. Here, we argue that such positive results are likely the consequence of a DNA contamination because the 196 bp COI fragments of F. kittipongi from the Pahang River and the Perak River differ from each other by 4 nucleotide substitutions. The source of contamination in Lim & Then (2022) could have been the Perak samples the authors handled to develop the primers. We also briefly discuss the potential impact of the presumed co-occurrence of freshwater stingrays of the genus Fluvitrygon in the Pahang River on the specificity of the F. kittipongi-specific primers designed by Lim & Then (2022).
最近，Lim & Then (2022;Endang Species Res 48:43-50)使用基于环境DNA (eDNA) pcr的方法检测了马来西亚半岛东部彭恒河流域一种濒危淡水黄貂鱼Fluvitrygon kittipongi (Dasyatidae)的存在。为此，他们设计了一对物种特异性引物来扩增细胞色素c氧化酶I (COI)基因的196碱基对(bp)片段。Lim & Then(2022)报道了在季风间期和西南季风季节沿彭恒河上游检测到该物种的阳性结果，pcr扩增的eDNA序列与从马来西亚半岛西部Perak河流域收集的F. kittipongi参考COI序列相同。在这里，我们认为这样的阳性结果可能是DNA污染的结果，因为来自彭恒河和霹雳河的F. kittipongi的196 bp COI片段彼此有4个核苷酸取代。Lim & Then(2022)中的污染源可能是作者为开发引物而处理的霹雳州样品。我们还简要讨论了假定在彭恒河中共存的Fluvitrygon属淡水黄貂鱼对Lim和Then(2022)设计的F. kittipongi特异性引物的特异性的潜在影响。
{"title":"DNA contamination and taxonomic diversity hinder eDNA research on freshwater stingray species: Comment on Lim & Then (2022)","authors":"Nfmah Alshari, Mhib Adnan, Jaf Jamaluddin, S. Lavoué, S. Nor","doi":"10.3354/esr01241","DOIUrl":"https://doi.org/10.3354/esr01241","url":null,"abstract":"Recently, Lim & Then (2022; Endang Species Res 48:43-50) used an environmental DNA (eDNA) PCR-based method for detecting the presence of an endangered species of freshwater stingray, Fluvitrygon kittipongi (Dasyatidae), in the Pahang River basin, east Peninsular Malaysia. For that, they designed a species-specific pair of primers to amplify a 196 base pair (bp) fragment of the cytochrome c oxidase I (COI) gene. Lim & Then (2022) reported positive detection of this species along an upstream stretch of the Pahang River during the inter-monsoon and the southwest monsoon seasons, with the PCR-amplified eDNA sequences identical to the reference COI sequences of F. kittipongi collected from the Perak River basin, west Peninsular Malaysia. Here, we argue that such positive results are likely the consequence of a DNA contamination because the 196 bp COI fragments of F. kittipongi from the Pahang River and the Perak River differ from each other by 4 nucleotide substitutions. The source of contamination in Lim & Then (2022) could have been the Perak samples the authors handled to develop the primers. We also briefly discuss the potential impact of the presumed co-occurrence of freshwater stingrays of the genus Fluvitrygon in the Pahang River on the specificity of the F. kittipongi-specific primers designed by Lim & Then (2022).","PeriodicalId":48746,"journal":{"name":"Endangered Species Research","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2023-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84484273","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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}
Some red-cockaded woodpecker (RCW) Dryobates borealis populations remain understudied. This is notable because management that incorporates population demographics and site characteristics may benefit RCW recovery. The Oakmulgee Ranger District of the Talladega National Forest (Alabama, USA) has no wiregrass Aristida stricta, small forest stand sizes, rolling topography, and contains an understudied RCW population. Our goal in the Oakmulgee was to characterize RCW habitat, possibly identify ways in which habitat differed from other regions, and estimate associations between habitat and reproductive output. We found that 70.2 and 92.5% of sampled stands met recovery standard thresholds for small and large pine basal area (BA) as defined in the United States Fish and Wildlife Service (USFWS) RCW Recovery Plan. While 74.6% of longleaf pine Pinus palustris-dominated stands met the threshold for overstory hardwood canopy composition, 60.0% of loblolly pine P. taeda-dominated stands did not. Few stands met the recommended percentage of herbaceous understory (19.8%) or recommended absence of hardwood midstory. A lower rate of partial brood loss was associated with a greater area of large pines (≥25.4 cm diameter at breast height; DBH), a smaller area of small pines (≥10 and <25.4 cm DBH), a larger area burned in the dormant season, and higher RCW density. In our models, hardwood overstory and midstory did not influence egg or hatchling production. Hardwoods in the Oakmulgee could contribute to unfavorable habitat, as indicated in the USFWS RCW Recovery Plan, as well as relate to variation in habitat across the RCW’s range. Regions of the RCW’s range are understudied, and limited staffing and funding impede advances in understanding and conservation.
一些红冠啄木鸟(RCW)的种群仍未得到充分研究。这是值得注意的，因为纳入人口统计和地点特征的管理可能有利于RCW的恢复。塔拉迪加国家森林(美国阿拉巴马州)的奥克穆尔吉护林员区(Oakmulgee Ranger District)没有铁蒺藜(Aristida stricta)，林分面积小，地形起伏，并且包含一个未充分研究的RCW种群。我们在Oakmulgee的目标是描述RCW栖息地的特征，可能确定栖息地与其他地区不同的方式，并估计栖息地与生殖产量之间的关系。结果表明，70.2%和92.5%的样本林分符合美国鱼类和野生动物管理局(USFWS) RCW恢复计划中规定的大小松林基面积(BA)恢复标准阈值。长叶松占74.6%的林分满足阔叶松冠层组成的阈值，而火炬松占60.0%的林分不满足阔叶松冠层组成的阈值。很少有林分达到草本下层植被推荐比例(19.8%)或硬木中层推荐缺失率。大松(胸高直径≥25.4 cm;小松(≥10和<25.4 cm DBH)面积较小，休眠季节燃烧面积较大，RCW密度较高。在我们的模型中，阔叶树的上层和中层不影响卵或幼雏的产量。正如USFWS RCW恢复计划所指出的那样，奥克穆尔吉的硬木可能会导致不利的栖息地，并且与RCW范围内栖息地的变化有关。RCW范围内的区域研究不足，有限的人员和资金阻碍了了解和保护的进展。
{"title":"Red-cockaded woodpecker habitat characteristics associated with partial brood loss in the Upper East Gulf Coastal Plain, USA","authors":"EJ Martin, F. Gigliotti, Pfb Ferguson","doi":"10.3354/esr01223","DOIUrl":"https://doi.org/10.3354/esr01223","url":null,"abstract":"Some red-cockaded woodpecker (RCW) Dryobates borealis populations remain understudied. This is notable because management that incorporates population demographics and site characteristics may benefit RCW recovery. The Oakmulgee Ranger District of the Talladega National Forest (Alabama, USA) has no wiregrass Aristida stricta, small forest stand sizes, rolling topography, and contains an understudied RCW population. Our goal in the Oakmulgee was to characterize RCW habitat, possibly identify ways in which habitat differed from other regions, and estimate associations between habitat and reproductive output. We found that 70.2 and 92.5% of sampled stands met recovery standard thresholds for small and large pine basal area (BA) as defined in the United States Fish and Wildlife Service (USFWS) RCW Recovery Plan. While 74.6% of longleaf pine Pinus palustris-dominated stands met the threshold for overstory hardwood canopy composition, 60.0% of loblolly pine P. taeda-dominated stands did not. Few stands met the recommended percentage of herbaceous understory (19.8%) or recommended absence of hardwood midstory. A lower rate of partial brood loss was associated with a greater area of large pines (≥25.4 cm diameter at breast height; DBH), a smaller area of small pines (≥10 and <25.4 cm DBH), a larger area burned in the dormant season, and higher RCW density. In our models, hardwood overstory and midstory did not influence egg or hatchling production. Hardwoods in the Oakmulgee could contribute to unfavorable habitat, as indicated in the USFWS RCW Recovery Plan, as well as relate to variation in habitat across the RCW’s range. Regions of the RCW’s range are understudied, and limited staffing and funding impede advances in understanding and conservation.","PeriodicalId":48746,"journal":{"name":"Endangered Species Research","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2023-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86237589","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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 : 2023-04-18DOI: 10.54905/disssi/v24i73/e34s1522
S. Yadav, R. Kadariya, U. Paudel, S. Thapa, K. Bhusal
{"title":"Diversity and Richness of Avian Species in Khata and Karnali Corridor, Nepal","authors":"S. Yadav, R. Kadariya, U. Paudel, S. Thapa, K. Bhusal","doi":"10.54905/disssi/v24i73/e34s1522","DOIUrl":"https://doi.org/10.54905/disssi/v24i73/e34s1522","url":null,"abstract":"","PeriodicalId":48746,"journal":{"name":"Endangered Species Research","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2023-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78551557","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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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