Pub Date : 2019-01-02DOI: 10.1080/03946975.2018.1542195
L. D. de Oliveira, B. S. Sant’Anna, G. Y. Hattori
The population structure and reproduction of Macrobrachium brasiliense were studied with the aim of better understanding the ecology of this species in relation to the Amazonian flood-pulse regime. A total of 3,306 animals were caught monthly from August 2011 to July 2013 at the Carú River, Itacoatiara, Amazonas State (Brazil). The average carapace length of males (6.87 ± 3.45 mm) and females (6.88 ± 4.78 mm) did not differ significantly (U = 0.608; p= 0.5432) for the overall study period. The sex ratio was biased toward females (M:F = 1:1.61; χ2=83.855; p< 0.0001). The reproduction was continuous, and although juveniles were present throughout the study period, the recruitment occurred primarily during the ebb (August–September) and drought (October–December) periods. Macrobrachium brasiliense presents a low number of large eggs, and egg volume increased during embryogenesis, by 21.1% from Stage I to III. The population size-frequency distribution presented no correlation with the abiotic variables, but its reproductive period seems to be related to the Amazonian flood-pulse regime.
{"title":"Population biology of the freshwater prawn Macrobrachium brasiliense (Heller, 1862) in the Middle Amazon Region, Brazil","authors":"L. D. de Oliveira, B. S. Sant’Anna, G. Y. Hattori","doi":"10.1080/03946975.2018.1542195","DOIUrl":"https://doi.org/10.1080/03946975.2018.1542195","url":null,"abstract":"The population structure and reproduction of Macrobrachium brasiliense were studied with the aim of better understanding the ecology of this species in relation to the Amazonian flood-pulse regime. A total of 3,306 animals were caught monthly from August 2011 to July 2013 at the Carú River, Itacoatiara, Amazonas State (Brazil). The average carapace length of males (6.87 ± 3.45 mm) and females (6.88 ± 4.78 mm) did not differ significantly (U = 0.608; p= 0.5432) for the overall study period. The sex ratio was biased toward females (M:F = 1:1.61; χ2=83.855; p< 0.0001). The reproduction was continuous, and although juveniles were present throughout the study period, the recruitment occurred primarily during the ebb (August–September) and drought (October–December) periods. Macrobrachium brasiliense presents a low number of large eggs, and egg volume increased during embryogenesis, by 21.1% from Stage I to III. The population size-frequency distribution presented no correlation with the abiotic variables, but its reproductive period seems to be related to the Amazonian flood-pulse regime.","PeriodicalId":54409,"journal":{"name":"Tropical Zoology","volume":"32 1","pages":"19 - 36"},"PeriodicalIF":0.9,"publicationDate":"2019-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/03946975.2018.1542195","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42191078","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}
Pub Date : 2019-01-02DOI: 10.1080/03946975.2018.1538199
S. Ermilov, Julien K. N’Dri
A new species of the genus Zetorchella (Oribatida: Caloppiidae) is described from soil of Côte d’Ivoire. Zetorchella cotedivoirensis Ermilov n. sp. differs from Zetorchella deleoni (Higgins, 1966) by the presence of phylliform interlamellar and dorsal notogastral setae and nine pairs of notogastral setae. A revised generic diagnosis and an identification key to species of Zetorchella from the Afrotropical region are presented. http://zoobank.org/urn:lsid:zoobank.org:pub:677FAD4B-781F-4AE1-96B0-1D41428A2BE2
{"title":"Contribution to the knowledge of the oribatid mite genus Zetorchella (Acari: Oribatida: Caloppiidae)","authors":"S. Ermilov, Julien K. N’Dri","doi":"10.1080/03946975.2018.1538199","DOIUrl":"https://doi.org/10.1080/03946975.2018.1538199","url":null,"abstract":"A new species of the genus Zetorchella (Oribatida: Caloppiidae) is described from soil of Côte d’Ivoire. Zetorchella cotedivoirensis Ermilov n. sp. differs from Zetorchella deleoni (Higgins, 1966) by the presence of phylliform interlamellar and dorsal notogastral setae and nine pairs of notogastral setae. A revised generic diagnosis and an identification key to species of Zetorchella from the Afrotropical region are presented. http://zoobank.org/urn:lsid:zoobank.org:pub:677FAD4B-781F-4AE1-96B0-1D41428A2BE2","PeriodicalId":54409,"journal":{"name":"Tropical Zoology","volume":"32 1","pages":"1 - 9"},"PeriodicalIF":0.9,"publicationDate":"2019-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/03946975.2018.1538199","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43793277","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}
Pub Date : 2018-10-02DOI: 10.1080/03946975.2018.1493169
C. A. Tauber, R. Pantaleoni
Type specimens of Neotropical Chrysopidae are currently held in two Italian natural history museums. Four are in the Museo Regionale di Scienze Naturali (MRSN), Torino, and five are in the Museo Civico di Storia Naturale “Giacomo Doria” (MSNG), Genova. Together, these nine specimens also represent all of the known New World types of Chrysopidae housed in Italian museums. All were described by Longinos Navás between 1922 and 1932, and all are now in relatively good condition. Here, we catalog and provide images of each specimen, designate lectotypes, and offer current taxonomic and nomenclatural information on the species represented by each. Two nomenclatural changes are proposed: (1) Chrysopa mainerii Navás, 1929, previously considered incertae sedis, is synonymized with Ceraeochrysa everes (Banks, 1920), n. syn.; (2) Chrysopa barberina Navás, 1932, also previously incertae sedis, is identified as Chrysoperla barberina (Navás, 1932), n. comb.
{"title":"Type specimens of Neotropical Chrysopidae (Neuroptera) in Italian museums","authors":"C. A. Tauber, R. Pantaleoni","doi":"10.1080/03946975.2018.1493169","DOIUrl":"https://doi.org/10.1080/03946975.2018.1493169","url":null,"abstract":"Type specimens of Neotropical Chrysopidae are currently held in two Italian natural history museums. Four are in the Museo Regionale di Scienze Naturali (MRSN), Torino, and five are in the Museo Civico di Storia Naturale “Giacomo Doria” (MSNG), Genova. Together, these nine specimens also represent all of the known New World types of Chrysopidae housed in Italian museums. All were described by Longinos Navás between 1922 and 1932, and all are now in relatively good condition. Here, we catalog and provide images of each specimen, designate lectotypes, and offer current taxonomic and nomenclatural information on the species represented by each. Two nomenclatural changes are proposed: (1) Chrysopa mainerii Navás, 1929, previously considered incertae sedis, is synonymized with Ceraeochrysa everes (Banks, 1920), n. syn.; (2) Chrysopa barberina Navás, 1932, also previously incertae sedis, is identified as Chrysoperla barberina (Navás, 1932), n. comb.","PeriodicalId":54409,"journal":{"name":"Tropical Zoology","volume":"31 1","pages":"177 - 199"},"PeriodicalIF":0.9,"publicationDate":"2018-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/03946975.2018.1493169","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44035868","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}
Pub Date : 2018-10-02DOI: 10.1080/03946975.2018.1493181
C. Perafán, Dayana Valencia-cuÉllar
A new species of Proshapalopus Mello-Leitão, 1923, distributed in the Southwest Colombia in the Chocó Region, is described. A morphological cladistic analysis based on the previous matrix of a Theraphosinae group confirmed the inclusion of this species within Proshapalopus. The new species, Proshapalopus marimbai n. sp., can be distinguished from other species of the genus mainly by the reduced number of labial cuspules, around 40; in contrast the other species having over 100. Males can be distinguished by the thickened femur III, presence of intermediate urticating setae type I-III only, palpal bulb with a considerably long prolateral inferior keel (from ventral median depression to embolus apex) and the accessory keel pronounced distally. Females can be distinguished for lacking urticating setae type III and the non-incrassated tibia IV. This discovery constitutes the fourth species described for Proshapalopus and the first record for Colombia, expanding the geographical distribution of the genus, until now known for Brazil only. Other aspects of distribution and the phylogenetic relationship of the new species are also discussed here. http://zoobank.org/urn:lsid:zoobank.org:pub:852AF8E4-67C3-4DD9-B386-29F5C6E9A073
描述了1923年分布于哥伦比亚西南部Chocó地区的mello - leit Proshapalopus一新种。基于先前的一个兽骨兽科群的形态学分支分析证实了该物种属于原猿。新种Proshapalopus marimbai n. sp.与该属其他种的区别主要在于唇尖数量减少，约为40个;相比之下，其他物种有超过100个。雄性可通过III型股骨增厚，仅存在I-III型中间刺状刚毛，掌球具有相当长的前下龙骨(从腹侧正中凹陷到栓子尖)和远端副龙骨来区分。这一发现构成了Proshapalopus的第四个物种，也是哥伦比亚的第一个记录，扩大了该属的地理分布，直到目前为止，该属只存在于巴西。本文还讨论了新种分布和系统发育关系的其他方面。http://zoobank.org/urn:lsid:zoobank.org:pub:852AF8E4-67C3-4DD9-B386-29F5C6E9A073
{"title":"Proshapalopus marimbai, a new tarantula species (Mygalomorphae, Theraphosidae) and first genus record from Colombia","authors":"C. Perafán, Dayana Valencia-cuÉllar","doi":"10.1080/03946975.2018.1493181","DOIUrl":"https://doi.org/10.1080/03946975.2018.1493181","url":null,"abstract":"A new species of Proshapalopus Mello-Leitão, 1923, distributed in the Southwest Colombia in the Chocó Region, is described. A morphological cladistic analysis based on the previous matrix of a Theraphosinae group confirmed the inclusion of this species within Proshapalopus. The new species, Proshapalopus marimbai n. sp., can be distinguished from other species of the genus mainly by the reduced number of labial cuspules, around 40; in contrast the other species having over 100. Males can be distinguished by the thickened femur III, presence of intermediate urticating setae type I-III only, palpal bulb with a considerably long prolateral inferior keel (from ventral median depression to embolus apex) and the accessory keel pronounced distally. Females can be distinguished for lacking urticating setae type III and the non-incrassated tibia IV. This discovery constitutes the fourth species described for Proshapalopus and the first record for Colombia, expanding the geographical distribution of the genus, until now known for Brazil only. Other aspects of distribution and the phylogenetic relationship of the new species are also discussed here. http://zoobank.org/urn:lsid:zoobank.org:pub:852AF8E4-67C3-4DD9-B386-29F5C6E9A073","PeriodicalId":54409,"journal":{"name":"Tropical Zoology","volume":"31 1","pages":"200 - 213"},"PeriodicalIF":0.9,"publicationDate":"2018-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/03946975.2018.1493181","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42088336","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}
Pub Date : 2018-10-02DOI: 10.1080/03946975.2018.1482700
E. Shokoohi, Fahimeh Iranpour, A. Swart, H. Fourie, H. Panahi
During a survey of soil nematodes in Iran, some known species belonging to the genus Ditylenchus were recovered from the rhizosphere of alfalfa: Ditylenchus acutus, Ditylenchus myceliophagus and Ditylenchus terricolus. Measurements and illustrations are provided for these species. A molecular study of the 28S rDNA region of the Ditylenchus species from Iran placed them in separate clades. Phylogenetic analysis indicates that Ditylenchus destructor is a monophyletic taxon. In addition, D. acutus places together with D. destructor, Ditylenchus arachis, Ditylenchus sarvarae, Ditylenchus persicus and Ditylenchus halictus in a clade. While D. myceliophagus and D. terricolus form a separate clade. Phylogenetic positions and morphometrics of D. acutus, D. myceliophagus and D. terricolus are given.
{"title":"Morphological and molecular characters of three Ditylenchus species from Iran","authors":"E. Shokoohi, Fahimeh Iranpour, A. Swart, H. Fourie, H. Panahi","doi":"10.1080/03946975.2018.1482700","DOIUrl":"https://doi.org/10.1080/03946975.2018.1482700","url":null,"abstract":"During a survey of soil nematodes in Iran, some known species belonging to the genus Ditylenchus were recovered from the rhizosphere of alfalfa: Ditylenchus acutus, Ditylenchus myceliophagus and Ditylenchus terricolus. Measurements and illustrations are provided for these species. A molecular study of the 28S rDNA region of the Ditylenchus species from Iran placed them in separate clades. Phylogenetic analysis indicates that Ditylenchus destructor is a monophyletic taxon. In addition, D. acutus places together with D. destructor, Ditylenchus arachis, Ditylenchus sarvarae, Ditylenchus persicus and Ditylenchus halictus in a clade. While D. myceliophagus and D. terricolus form a separate clade. Phylogenetic positions and morphometrics of D. acutus, D. myceliophagus and D. terricolus are given.","PeriodicalId":54409,"journal":{"name":"Tropical Zoology","volume":"31 1","pages":"161 - 176"},"PeriodicalIF":0.9,"publicationDate":"2018-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/03946975.2018.1482700","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45604806","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}
Pub Date : 2018-07-03DOI: 10.1080/03946975.2018.1477350
P. Gąsiorek, R. Kristensen
Faunistic survey of Tanzania and Uganda resulted in the finding of eight species belonging to the genus Echiniscus C.A.S. Schultze, 1840, three of which are new to science. Echiniscus belloporus n. sp. has no trunk cirri and dorsal plates densely covered with pores (sculpture of the spinulosus type); it lacks a spine I and the dentate collar IV, a combination of traits so far unseen in Echiniscus. Echiniscus ornamentatus n. sp. possesses regularly distributed pores on its dorsal plates, scapular and caudal plates with contrasting faceting, and anterior portions of the paired plates distinctly darker than their posterior parts. Echiniscus tristis n. sp. is also a new member of the spinulosus group, but differs from all other species of this complex by having small pores, a trunk appendage combination C-Dd-E, and large spurs on its internal claws. Three other species: Echiniscus baius, Echiniscus dariae and Echiniscus manuelae, are recorded as new additions to the African fauna. Two last species: Echiniscus africanus and Echiniscus cirinoi, are scarcely reported elements of the Afrotropical fauna. Scanning electron microscopy microphotographs supplementing the description of E. dariae, and amendments to the outdated description of E. manuelae are also provided. http://zoobank.org/urn:lsid:zoobank.org:act:B8494205-58D5-4E54-B54E-2C40976892E1http://zoobank.org/urn:lsid:zoobank.org:act:F439D375-F44F-4C3A-997F-EDC0D0A45F88http://zoobank.org/urn:lsid:zoobank.org:act:B602FA08-3E17-4149-A1FE-22829E13DFFD
1840年，在坦桑尼亚和乌干达的调查中发现了8种棘轮属(Echiniscus)，其中3种为新种。棘棘棘轮(Echiniscus belloporus n. sp.)没有树干卷毛，背板密被气孔覆盖(棘棘类型的雕刻);它没有1号脊椎和4号齿状颈圈，这是迄今为止在棘猿中从未见过的特征组合。针鼹(Echiniscus装饰物)的背板、肩胛骨和尾板上的孔分布规律，面形对比明显，成对板的前部明显比后部深。Echiniscus tristis n. sp.也是棘纲的新成员，但与该复合体的所有其他物种不同的是，它有小毛孔，躯干附属物组合C-Dd-E，其内爪上有大刺。另外三个物种:绵锥菊、达瑞绵锥菊和马努绵锥菊被记录为非洲动物群的新成员。最后两种:非洲紫锥花和cirinoi紫锥花，很少被报道为非洲热带动物群的组成部分。还提供了扫描电子显微镜显微照片，补充了dariae的描述，并修改了过时的E. manuelae描述。http://zoobank.org/urn:lsid:zoobank.org:act:B8494205-58D5-4E54-B54E-2C40976892E1http://zoobank.org/urn:lsid:zoobank.org:act:F439D375-F44F-4C3A-997F-EDC0D0A45F88http://zoobank.org/urn:lsid:zoobank.org:act:B602FA08-3E17-4149-A1FE-22829E13DFFD
{"title":"Echiniscidae (Heterotardigrada) of Tanzania and Uganda","authors":"P. Gąsiorek, R. Kristensen","doi":"10.1080/03946975.2018.1477350","DOIUrl":"https://doi.org/10.1080/03946975.2018.1477350","url":null,"abstract":"Faunistic survey of Tanzania and Uganda resulted in the finding of eight species belonging to the genus Echiniscus C.A.S. Schultze, 1840, three of which are new to science. Echiniscus belloporus n. sp. has no trunk cirri and dorsal plates densely covered with pores (sculpture of the spinulosus type); it lacks a spine I and the dentate collar IV, a combination of traits so far unseen in Echiniscus. Echiniscus ornamentatus n. sp. possesses regularly distributed pores on its dorsal plates, scapular and caudal plates with contrasting faceting, and anterior portions of the paired plates distinctly darker than their posterior parts. Echiniscus tristis n. sp. is also a new member of the spinulosus group, but differs from all other species of this complex by having small pores, a trunk appendage combination C-Dd-E, and large spurs on its internal claws. Three other species: Echiniscus baius, Echiniscus dariae and Echiniscus manuelae, are recorded as new additions to the African fauna. Two last species: Echiniscus africanus and Echiniscus cirinoi, are scarcely reported elements of the Afrotropical fauna. Scanning electron microscopy microphotographs supplementing the description of E. dariae, and amendments to the outdated description of E. manuelae are also provided. http://zoobank.org/urn:lsid:zoobank.org:act:B8494205-58D5-4E54-B54E-2C40976892E1http://zoobank.org/urn:lsid:zoobank.org:act:F439D375-F44F-4C3A-997F-EDC0D0A45F88http://zoobank.org/urn:lsid:zoobank.org:act:B602FA08-3E17-4149-A1FE-22829E13DFFD","PeriodicalId":54409,"journal":{"name":"Tropical Zoology","volume":"31 1","pages":"131 - 160"},"PeriodicalIF":0.9,"publicationDate":"2018-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/03946975.2018.1477350","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43890445","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}
Pub Date : 2018-07-03DOI: 10.1080/03946975.2018.1462994
H. J. Gasca-Álvarez, C. Deloya, C. Cultid-Medina, G. Pinilla‐Buitrago
A taxonomic synopsis and analysis of the potential distribution of the three Cotinis species found in Colombia are presented, based on the revision of 212 specimens deposited in 20 entomological collections. Based on collection information and geo-referencing locality data, the rate of record accumulation over time and observed distribution for each species were examined. Potential distribution maps were generated following biogeographic, bioclimatic, conservation, and expert criteria. Potential distribution models were made according to the amount and degree of record spatial aggregation. Cundinamarca, Tolima, Magdalena, and Sucre are the departments with the greatest number of species occurrence data. The analysis of potential distribution showed that Cotinis columbica is restricted to Andean ecosystems, while Cotinis lebasi is showing potential distribution in humid tropical forest areas in Colombia. On the other hand, the Jackknife test indicated that available data for Cotinis barthelemyi do not provide a potential distribution model better than would be expected from chance. With the increase in comprehensive taxonomic monographs, which compile high quality collection data, this type of analysis could be implemented for other groups of Scarabaeoidea in Colombia to evaluate the temporary and spatial representativeness of sampling across different scales.
{"title":"Synopsis and potential geographical distribution of Cotinis (Coleoptera: Scarabaeidae: Cetoniinae: Gymnetini) in Colombia","authors":"H. J. Gasca-Álvarez, C. Deloya, C. Cultid-Medina, G. Pinilla‐Buitrago","doi":"10.1080/03946975.2018.1462994","DOIUrl":"https://doi.org/10.1080/03946975.2018.1462994","url":null,"abstract":"A taxonomic synopsis and analysis of the potential distribution of the three Cotinis species found in Colombia are presented, based on the revision of 212 specimens deposited in 20 entomological collections. Based on collection information and geo-referencing locality data, the rate of record accumulation over time and observed distribution for each species were examined. Potential distribution maps were generated following biogeographic, bioclimatic, conservation, and expert criteria. Potential distribution models were made according to the amount and degree of record spatial aggregation. Cundinamarca, Tolima, Magdalena, and Sucre are the departments with the greatest number of species occurrence data. The analysis of potential distribution showed that Cotinis columbica is restricted to Andean ecosystems, while Cotinis lebasi is showing potential distribution in humid tropical forest areas in Colombia. On the other hand, the Jackknife test indicated that available data for Cotinis barthelemyi do not provide a potential distribution model better than would be expected from chance. With the increase in comprehensive taxonomic monographs, which compile high quality collection data, this type of analysis could be implemented for other groups of Scarabaeoidea in Colombia to evaluate the temporary and spatial representativeness of sampling across different scales.","PeriodicalId":54409,"journal":{"name":"Tropical Zoology","volume":"31 1","pages":"117 - 99"},"PeriodicalIF":0.9,"publicationDate":"2018-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/03946975.2018.1462994","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44620954","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}
Pub Date : 2018-07-03DOI: 10.1080/03946975.2018.1477248
G. Segniagbeto, Komina Honam Atsri, Délagnon Assou, Koudzo D. Koda, G. Amori, J. Decher, D. Dendi, L. Luiselli
Ecological data on ungulate mammals are poorly available for Togo (West Africa), also with regard to the populations inhabiting the various protected areas. To provide preliminary data on the ecology of Togolese ungulates, several field missions were carried out between September 2014 and August 2017 in the various ecological units considered as key areas for large mammals of the Mono Transboundary Biosphere Reserve (MTBR). MTBR, located along the Mono River, has several ecological units of varying sizes, with the Togodo Protected Areas Complex being the largest within the biosphere reserve (25,500 ha). A total of 12 species belonging to four families were recorded on the basis of direct observations and/or signs of presence. These include: Tragelaphus eurycerus, Tragelaphus gratus, Tragelaphus phaleratus, Syncerus brachyceros, Kobus kob, Philantomba walteri, Cephalophus rufilatus, Cephalophus sylvicultor, Sylvicapra grimmia, Hippopotamus amphibius, Potamochoerus porcus, Phacochoerus africanus. Another species (Kobus ellipsiprymnus) has been reported from hunter surveys. The field sightings of ungulates were especially concentrated in the Togodo protected area complex, but also the smaller ecological units (such as the Afito pools, the Avéve forest and the Akissa forest) seemed to play an important role in consolidating the ecological functioning of th biosphere reserve. Indeed, groups of T. gratus T. phaleratus and H. amphibius are reported by hunters to seasonally move between the complex of protected areas of Togodo and its units.
{"title":"Diversity and conservation status of ungulates in the Mono Transboundary Biosphere Reserve, Togo (West Africa)","authors":"G. Segniagbeto, Komina Honam Atsri, Délagnon Assou, Koudzo D. Koda, G. Amori, J. Decher, D. Dendi, L. Luiselli","doi":"10.1080/03946975.2018.1477248","DOIUrl":"https://doi.org/10.1080/03946975.2018.1477248","url":null,"abstract":"Ecological data on ungulate mammals are poorly available for Togo (West Africa), also with regard to the populations inhabiting the various protected areas. To provide preliminary data on the ecology of Togolese ungulates, several field missions were carried out between September 2014 and August 2017 in the various ecological units considered as key areas for large mammals of the Mono Transboundary Biosphere Reserve (MTBR). MTBR, located along the Mono River, has several ecological units of varying sizes, with the Togodo Protected Areas Complex being the largest within the biosphere reserve (25,500 ha). A total of 12 species belonging to four families were recorded on the basis of direct observations and/or signs of presence. These include: Tragelaphus eurycerus, Tragelaphus gratus, Tragelaphus phaleratus, Syncerus brachyceros, Kobus kob, Philantomba walteri, Cephalophus rufilatus, Cephalophus sylvicultor, Sylvicapra grimmia, Hippopotamus amphibius, Potamochoerus porcus, Phacochoerus africanus. Another species (Kobus ellipsiprymnus) has been reported from hunter surveys. The field sightings of ungulates were especially concentrated in the Togodo protected area complex, but also the smaller ecological units (such as the Afito pools, the Avéve forest and the Akissa forest) seemed to play an important role in consolidating the ecological functioning of th biosphere reserve. Indeed, groups of T. gratus T. phaleratus and H. amphibius are reported by hunters to seasonally move between the complex of protected areas of Togodo and its units.","PeriodicalId":54409,"journal":{"name":"Tropical Zoology","volume":"31 1","pages":"118 - 130"},"PeriodicalIF":0.9,"publicationDate":"2018-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/03946975.2018.1477248","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48551485","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}
Pub Date : 2018-04-03DOI: 10.1080/03946975.2018.1448531
J. Pétillon, B. Leroy, El Aziz Djoudi, V. Vedel
While spiders constitute the most abundant and diverse arthropods in many habitats, they remained under-studied, especially in tropical rainforests. The goal of this study is to assess the spatial distribution of the spider family Ctenidae by assessing associations of species diversity and population traits among different habitat conditions. Fieldwork was carried out during 2013 in habitats varying in flooding frequency (plateau vs. flooded forest) and elevation (inselberg vs. lowland) in the Nouragues National Natural Reserve, French Guiana. Assemblage composition, population structure, and trait measurements of one dominant species were assessed using hand collection in replicated quadrats. We found strong effects on ctenid assemblages attributable to both elevation and flooding, with changes in relative abundance of species among habitats, but few correlated densities between species. At the population level, main differences in species distribution between and within habitats were detected only when juveniles were taken into account. No effect of elevation was found on the measurements of traits of the dominant species, but legs were proportionally shorter in flooded habitats, suggesting reduced active dispersal in these habitats. Our study highlights the value of complementary of measures of diversity and traits at different biological scales in Ctenidae.
{"title":"Small and large spatial scale coexistence of ctenid spiders in a neotropical forest (French Guiana)","authors":"J. Pétillon, B. Leroy, El Aziz Djoudi, V. Vedel","doi":"10.1080/03946975.2018.1448531","DOIUrl":"https://doi.org/10.1080/03946975.2018.1448531","url":null,"abstract":"While spiders constitute the most abundant and diverse arthropods in many habitats, they remained under-studied, especially in tropical rainforests. The goal of this study is to assess the spatial distribution of the spider family Ctenidae by assessing associations of species diversity and population traits among different habitat conditions. Fieldwork was carried out during 2013 in habitats varying in flooding frequency (plateau vs. flooded forest) and elevation (inselberg vs. lowland) in the Nouragues National Natural Reserve, French Guiana. Assemblage composition, population structure, and trait measurements of one dominant species were assessed using hand collection in replicated quadrats. We found strong effects on ctenid assemblages attributable to both elevation and flooding, with changes in relative abundance of species among habitats, but few correlated densities between species. At the population level, main differences in species distribution between and within habitats were detected only when juveniles were taken into account. No effect of elevation was found on the measurements of traits of the dominant species, but legs were proportionally shorter in flooded habitats, suggesting reduced active dispersal in these habitats. Our study highlights the value of complementary of measures of diversity and traits at different biological scales in Ctenidae.","PeriodicalId":54409,"journal":{"name":"Tropical Zoology","volume":"31 1","pages":"85 - 98"},"PeriodicalIF":0.9,"publicationDate":"2018-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/03946975.2018.1448531","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46495567","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}
Pub Date : 2018-03-28DOI: 10.1080/03946975.2018.1445686
S. Kekeunou, Alain Christel Wandji, C. Oumarou Ngoute
Taphronota ferruginea (Orthoptera: Pyrgomorphidae) is a pest of crops and forest trees. In order to contribute to the search for better strategies of fighting against this pest, this study was aimed at describing some aspects of its biology and ecology. Different nymphal instars collected in Nkongoa were reared in cages at the laboratory on Voacanga africana (Stapf, 1894), under a range of temperature 21.18–25.67 °C (averagely 23.13 °C) and relative humidity of 64.14–83.7% (averagely 75.5%). The post-embryonic development passed through six nymphal instars after hatching. Developmental duration of the sixth nymphal instar was longer than that of the fifth instar, which was also longer than those of first to fourth instars. Survival to adulthood increased with initial nymphal instar reared. Sexual dimorphism was highlighted in adults and in nymph of fifth and sixth instars. Pterotheca, female valves, male subgenital plates, total body length, color, and number of antenna segments were useful characters in distinguishing between nymphal instars. Adult female averaged 42.57 ± 6.29 days to start mating. Egg-laying occurred on average of 45.78 ± 4.74 days after first mating. Each female laid a single ootheca and the number of eggs per ootheca was averagely 30.44 ± 5.06. urn:lsid:zoobank.org:pub:1E888B7D‐C333‐4255‐8FAA‐773E1AAC8A9E
{"title":"Morphology, post-embryonic development, and reproduction of Taphronota ferruginea (Fabricius, 1781) (Orthoptera: Pyrgomorphidae)","authors":"S. Kekeunou, Alain Christel Wandji, C. Oumarou Ngoute","doi":"10.1080/03946975.2018.1445686","DOIUrl":"https://doi.org/10.1080/03946975.2018.1445686","url":null,"abstract":"Taphronota ferruginea (Orthoptera: Pyrgomorphidae) is a pest of crops and forest trees. In order to contribute to the search for better strategies of fighting against this pest, this study was aimed at describing some aspects of its biology and ecology. Different nymphal instars collected in Nkongoa were reared in cages at the laboratory on Voacanga africana (Stapf, 1894), under a range of temperature 21.18–25.67 °C (averagely 23.13 °C) and relative humidity of 64.14–83.7% (averagely 75.5%). The post-embryonic development passed through six nymphal instars after hatching. Developmental duration of the sixth nymphal instar was longer than that of the fifth instar, which was also longer than those of first to fourth instars. Survival to adulthood increased with initial nymphal instar reared. Sexual dimorphism was highlighted in adults and in nymph of fifth and sixth instars. Pterotheca, female valves, male subgenital plates, total body length, color, and number of antenna segments were useful characters in distinguishing between nymphal instars. Adult female averaged 42.57 ± 6.29 days to start mating. Egg-laying occurred on average of 45.78 ± 4.74 days after first mating. Each female laid a single ootheca and the number of eggs per ootheca was averagely 30.44 ± 5.06. urn:lsid:zoobank.org:pub:1E888B7D‐C333‐4255‐8FAA‐773E1AAC8A9E","PeriodicalId":54409,"journal":{"name":"Tropical Zoology","volume":"31 1","pages":"68 - 84"},"PeriodicalIF":0.9,"publicationDate":"2018-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/03946975.2018.1445686","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46353256","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}
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