Pub Date : 2022-09-01DOI: 10.11606/1807-0205/2022.62.049
L. Simone, J. C. Tarasconi
Two deep water new species of turriforms are described from south Brazilian coast. One of them is the turrid Polystira tupan sp. nov., one of the largest species of the genus (~80 mm), with proper sculpture, shallow anal notch, collected off Santa Catarina, 350 m. The other is a cochlespirid that has been confused with Cochlespira elegans, a north Atlantic species; as it has different sculpture, shape, peripheric spines, etc., a new species, Cochlespira notomaris sp. nov., is introduced, occurring so far from off Santa Catarina to Rio Grande do Sul, 200‑1,000 m. For comparative purposes, the holotype of C. elegans is also illustrated.
{"title":"Two new species of deep water south Brazilian turriforms (Neogastropoda, Conoidea, Turridae and Cochlespiridae)","authors":"L. Simone, J. C. Tarasconi","doi":"10.11606/1807-0205/2022.62.049","DOIUrl":"https://doi.org/10.11606/1807-0205/2022.62.049","url":null,"abstract":"Two deep water new species of turriforms are described from south Brazilian coast. One of them is the turrid Polystira tupan sp. nov., one of the largest species of the genus (~80 mm), with proper sculpture, shallow anal notch, collected off Santa Catarina, 350 m. The other is a cochlespirid that has been confused with Cochlespira elegans, a north Atlantic species; as it has different sculpture, shape, peripheric spines, etc., a new species, Cochlespira notomaris sp. nov., is introduced, occurring so far from off Santa Catarina to Rio Grande do Sul, 200‑1,000 m. For comparative purposes, the holotype of C. elegans is also illustrated.","PeriodicalId":35345,"journal":{"name":"Papeis Avulsos de Zoologia","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43964059","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-09-01DOI: 10.11606/1807-0205/2022.62.050
D. Alvarez-Garcia, María Paula Sierra-Juez, Dimas Kenji Sakamoto, S. Nihei
Hemilucilia segmentaria (Fabricius, 1805) is a Neotropical blowfly species of forensic importance, with necrophagous and asynanthropic habits. In this study, the antennal ultrastructure of H. segmentaria was examined using scanning electron microscopy. The three antennal segments are covered by microtrichia. Sensilla chaetica were detected only on the scape and pedicel. Setiferous plaques and a pedicellar button were observed on the pedicel. Four types of sensilla were found on the postpedicel, including s. trichoidea, s. basiconica (subtype I, II and III), s. coeloconica subtype I, and sensory pits with s. coeloconica subtype II. This is the first time that the fine structure of the antennae of H. segmentaria was studied. Our results constitute a solid base for research on comparative and functional morphology in H. segmentaria and other blowflies.
{"title":"Ultrastructural analysis of the antennae of Hemilucilia segmentaria (Diptera: Calliphoridae), a blowfly of forensic importance","authors":"D. Alvarez-Garcia, María Paula Sierra-Juez, Dimas Kenji Sakamoto, S. Nihei","doi":"10.11606/1807-0205/2022.62.050","DOIUrl":"https://doi.org/10.11606/1807-0205/2022.62.050","url":null,"abstract":"Hemilucilia segmentaria (Fabricius, 1805) is a Neotropical blowfly species of forensic importance, with necrophagous and asynanthropic habits. In this study, the antennal ultrastructure of H. segmentaria was examined using scanning electron microscopy. The three antennal segments are covered by microtrichia. Sensilla chaetica were detected only on the scape and pedicel. Setiferous plaques and a pedicellar button were observed on the pedicel. Four types of sensilla were found on the postpedicel, including s. trichoidea, s. basiconica (subtype I, II and III), s. coeloconica subtype I, and sensory pits with s. coeloconica subtype II. This is the first time that the fine structure of the antennae of H. segmentaria was studied. Our results constitute a solid base for research on comparative and functional morphology in H. segmentaria and other blowflies.","PeriodicalId":35345,"journal":{"name":"Papeis Avulsos de Zoologia","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43251302","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-08-02DOI: 10.11606/1807-0205/2022.62.045
K. Schuchmann, Martin Schley, Mona Hegmann, F. F. Deus, A. S. Tissiani, A. Weller, M. I. Marques
This study focuses on incubation parameters, egg morphometrics, and body mass development, hatching, and behavioral adaptations to heat stress within a colony of freshwater-breeding Black Skimmers (Rynchops niger) located in the private nature reserve of Serviço Social do Comércio (SESC) in the northern Pantanal, Mato Grosso, Brazil. Temperatures of nest, eggs, and surface substratum, as well as the development of embryos, were surveyed using thermal imaging, a method allowing digital recording from a distance and in a fraction of the time of traditional measuring techniques. The mean egg dimensions (n = 71) were 4.48 (± 0.13) × 3.27 (± 0.07) cm; the mean mass at hatching was 24.3 (± 1.9) g, with a significant decrease over incubation time. The mean surface temperature of eggs varied from 30.9℃ to 39.7℃, while the sand surface temperature was 20℃ at 06:00 h, rising to 47.7℃ at 11:00 h. There was a significant increase (7%) in egg surface temperature throughout incubation. Incubation-bout durations (n = 2108) were correlated with the microclimatic conditions of the substratum, becoming shorter with increasing sand-surface temperature around midday. Egg hatching lasted one day, and siblings hatched no more than 24 h apart. The mean body mass on Day 1 after hatching was 16.8 (± 1.6) g (n = 6). Three days after hatching, chicks moved to new sand depressions provided by parents near the original nest, where they remained motionless or tried to hide under riparian vegetation. The single chick that fledged had a growth rate of K = 0.117 and a t₁₀₋₉₀ value of 37.3 days. On Day 7, dorsal pintail feathers and primaries appeared, which were open on Day 15. After 14 days, the chick was able to regulate its body temperature, and no more feeding by parental birds during the daytime was observed. On Day 21, the immature plumage was fully developed. Fledging was completed on Day 27. Our study demonstrates that thermal imaging is a useful method of surveying egg and embryo development in the Black Skimmer, reducing nest disturbance and observation efforts.
这项研究的重点是位于巴西马托格罗索州潘塔纳尔北部的Serviço Social do Comércio（SESC）私人自然保护区内的淡水繁殖黑天鹅（Rynchops niger）群体的孵化参数、卵子形态计量学、体重发育、孵化和对热应激的行为适应。使用热成像对巢穴、卵子和表面基质的温度以及胚胎的发育进行了调查，这种方法可以在传统测量技术的一小部分时间内从远处进行数字记录。平均卵子大小（n=71）为4.48（±0.13）×3.27（±0.07）cm；孵化时的平均质量为24.3（±1.9）g，随孵化时间的推移显著下降。卵的平均表面温度在30.9℃到39.7℃之间，而沙表面温度在06:00时为20℃，在11:00时上升到47.7℃。在整个孵化过程中，鸡蛋表面温度显著升高（7%）。孵化期（n=2108）与基质的小气候条件相关，中午前后随着沙面温度的升高而缩短。蛋孵化持续了一天，兄弟姐妹孵化的时间间隔不超过24小时。孵化后第1天的平均体重为16.8（±1.6）g（n=6）。孵化三天后，雏鸟转移到原来巢穴附近由父母提供的新的沙洼地，在那里它们保持不动或试图躲在河岸植被下。成熟的单个小鸡的生长速度为K=0.117₁₀₋₉₀ 37.3天。在第7天，出现了背鳍羽和初级羽，它们在第15天开放。14天后，小鸡能够调节体温，白天没有观察到亲代鸟再喂食。在第21天，未成熟的羽毛完全发育。第27天完成了出栏。我们的研究表明，热成像是一种有用的方法，可以测量黑天鹅的卵子和胚胎发育，减少巢穴干扰和观察工作。
{"title":"Incubation parameters, offspring growth, and behavioral adaptations to heat stress of Black Skimmers (Rynchops niger) in a Neotropical inland colony (Aves, Charadriiformes, Laridae)","authors":"K. Schuchmann, Martin Schley, Mona Hegmann, F. F. Deus, A. S. Tissiani, A. Weller, M. I. Marques","doi":"10.11606/1807-0205/2022.62.045","DOIUrl":"https://doi.org/10.11606/1807-0205/2022.62.045","url":null,"abstract":"This study focuses on incubation parameters, egg morphometrics, and body mass development, hatching, and behavioral adaptations to heat stress within a colony of freshwater-breeding Black Skimmers (Rynchops niger) located in the private nature reserve of Serviço Social do Comércio (SESC) in the northern Pantanal, Mato Grosso, Brazil. Temperatures of nest, eggs, and surface substratum, as well as the development of embryos, were surveyed using thermal imaging, a method allowing digital recording from a distance and in a fraction of the time of traditional measuring techniques. The mean egg dimensions (n = 71) were 4.48 (± 0.13) × 3.27 (± 0.07) cm; the mean mass at hatching was 24.3 (± 1.9) g, with a significant decrease over incubation time. The mean surface temperature of eggs varied from 30.9℃ to 39.7℃, while the sand surface temperature was 20℃ at 06:00 h, rising to 47.7℃ at 11:00 h. There was a significant increase (7%) in egg surface temperature throughout incubation. Incubation-bout durations (n = 2108) were correlated with the microclimatic conditions of the substratum, becoming shorter with increasing sand-surface temperature around midday. Egg hatching lasted one day, and siblings hatched no more than 24 h apart. The mean body mass on Day 1 after hatching was 16.8 (± 1.6) g (n = 6). Three days after hatching, chicks moved to new sand depressions provided by parents near the original nest, where they remained motionless or tried to hide under riparian vegetation. The single chick that fledged had a growth rate of K = 0.117 and a t₁₀₋₉₀ value of 37.3 days. On Day 7, dorsal pintail feathers and primaries appeared, which were open on Day 15. After 14 days, the chick was able to regulate its body temperature, and no more feeding by parental birds during the daytime was observed. On Day 21, the immature plumage was fully developed. Fledging was completed on Day 27. Our study demonstrates that thermal imaging is a useful method of surveying egg and embryo development in the Black Skimmer, reducing nest disturbance and observation efforts.","PeriodicalId":35345,"journal":{"name":"Papeis Avulsos de Zoologia","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46456528","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-08-02DOI: 10.11606/1807-0205/2022.62.039
Fabrício Luiz Skupien, D. Rodrigues, Jady de Oliveira Sausen, G. Gonçalves, D. O. Lima
Natural resources are depleted in fragmented landscapes that have their vegetation also altered. As a result, the microhabitat diversity and the composition and distribution of local species are affected. In this study, we evaluated the small mammals' community diversity, composition and microhabitat selection in two Atlantic Forest fragments, in an ecotone area with the Pampa biome, southern Brazil. We recorded five rodents (Akodon montensis, Oligoryzomys nigripes, Sooretamys angouya, Juliomys pictipes and the exotic Rattus rattus) and one marsupial (Didelphis albiventris). Both fragments were dominated by the generalist rodent A. montensis. Akodon montensis and O. nigripes showed similar habitat preferences: ground covered by rocks and higher values of vegetation obstruction. Sooretamys angouya preferred places with higher abundance of trees. Fruit availability was important for A. montensis and D. albiventris, highlighting the importance of this food resource for local wildlife, and the potential role of these species as seed predators and dispersers. Small species richness, the presence of an exotic species and high dominance level suggest that the study area is highly degraded.
{"title":"Small mammals and microhabitat selection in forest fragments in the transition zone between Atlantic Forest and Pampa biome","authors":"Fabrício Luiz Skupien, D. Rodrigues, Jady de Oliveira Sausen, G. Gonçalves, D. O. Lima","doi":"10.11606/1807-0205/2022.62.039","DOIUrl":"https://doi.org/10.11606/1807-0205/2022.62.039","url":null,"abstract":"Natural resources are depleted in fragmented landscapes that have their vegetation also altered. As a result, the microhabitat diversity and the composition and distribution of local species are affected. In this study, we evaluated the small mammals' community diversity, composition and microhabitat selection in two Atlantic Forest fragments, in an ecotone area with the Pampa biome, southern Brazil. We recorded five rodents (Akodon montensis, Oligoryzomys nigripes, Sooretamys angouya, Juliomys pictipes and the exotic Rattus rattus) and one marsupial (Didelphis albiventris). Both fragments were dominated by the generalist rodent A. montensis. Akodon montensis and O. nigripes showed similar habitat preferences: ground covered by rocks and higher values of vegetation obstruction. Sooretamys angouya preferred places with higher abundance of trees. Fruit availability was important for A. montensis and D. albiventris, highlighting the importance of this food resource for local wildlife, and the potential role of these species as seed predators and dispersers. Small species richness, the presence of an exotic species and high dominance level suggest that the study area is highly degraded.","PeriodicalId":35345,"journal":{"name":"Papeis Avulsos de Zoologia","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44251107","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-08-02DOI: 10.11606/1807-0205/2022.62.042
Rodolfo Teixeira Frias, L. R. Porto, L. G. Fischer, P. L. Mancini
In Brazil, the White-backed Stilt Himantopus melanurus is distributed in the midwest, south and southeast but breeding information is scarce. In this study, species breeding information in the country was compiled from online platform (WikiAves, eBird) and literature. A case study describing nests and egg biometry were reported in Restinga of Jurubatiba National Park (RJNP), on the north cost of Rio de Janeiro state, as well potential threats to the species. Sampling was carried out in September and December 2018, monthly in 2019 and between January to March and September to December in 2020. Overall, 70 breeding records were compiled, between 1997 and November 2021, being 64 from WikiAves in all regions of Brazil, four records from eBird in São Paulo state (in 2021) and two records in literature (one from São Paulo state, in 2007 and one from Rio de Janeiro in 2012). In RJNP, 44 nests were identified being 34 active, with an average of 3.5 eggs per nest, and overall 118 eggs were measured. The main materials used to build the nests were the saltmarsh plant and mud. Around 60% of nests were degraded or predated. Predation was the main cause of egg loss. Successful nests (with chicks or hatching signs) represented 26% of the total nests monitored. This study reports the first information on the biometry of the species' eggs and nests, confirming the northern coast of Rio de Janeiro state as a nesting area for the species.
{"title":"Breeding biology review of White‑backed Stilt Himantopus melanurus in Brazil and a case study in the largest restinga protected area (Aves, Charadriiformes, Recurvirostridae)","authors":"Rodolfo Teixeira Frias, L. R. Porto, L. G. Fischer, P. L. Mancini","doi":"10.11606/1807-0205/2022.62.042","DOIUrl":"https://doi.org/10.11606/1807-0205/2022.62.042","url":null,"abstract":"In Brazil, the White-backed Stilt Himantopus melanurus is distributed in the midwest, south and southeast but breeding information is scarce. In this study, species breeding information in the country was compiled from online platform (WikiAves, eBird) and literature. A case study describing nests and egg biometry were reported in Restinga of Jurubatiba National Park (RJNP), on the north cost of Rio de Janeiro state, as well potential threats to the species. Sampling was carried out in September and December 2018, monthly in 2019 and between January to March and September to December in 2020. Overall, 70 breeding records were compiled, between 1997 and November 2021, being 64 from WikiAves in all regions of Brazil, four records from eBird in São Paulo state (in 2021) and two records in literature (one from São Paulo state, in 2007 and one from Rio de Janeiro in 2012). In RJNP, 44 nests were identified being 34 active, with an average of 3.5 eggs per nest, and overall 118 eggs were measured. The main materials used to build the nests were the saltmarsh plant and mud. Around 60% of nests were degraded or predated. Predation was the main cause of egg loss. Successful nests (with chicks or hatching signs) represented 26% of the total nests monitored. This study reports the first information on the biometry of the species' eggs and nests, confirming the northern coast of Rio de Janeiro state as a nesting area for the species.","PeriodicalId":35345,"journal":{"name":"Papeis Avulsos de Zoologia","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44555945","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-08-02DOI: 10.11606/1807-0205/2022.62.046
Ó. Pérez-Flores, A. Santos-Silva
Three new species from Guatemala are described and illustrated: Ectenessa canoi sp. nov. (Ectenessini), from Petén; Oxycoleus schusteri sp. nov. (Oxycoleini), from Izabal; and Odontocera nigroaurantia sp. nov. (Rhinotragini), from Petén. Distinguishing characters from closely related species are provided.
{"title":"New species of Cerambycinae (Coleoptera, Cerambycidae) from Guatemala","authors":"Ó. Pérez-Flores, A. Santos-Silva","doi":"10.11606/1807-0205/2022.62.046","DOIUrl":"https://doi.org/10.11606/1807-0205/2022.62.046","url":null,"abstract":"Three new species from Guatemala are described and illustrated: Ectenessa canoi sp. nov. (Ectenessini), from Petén; Oxycoleus schusteri sp. nov. (Oxycoleini), from Izabal; and Odontocera nigroaurantia sp. nov. (Rhinotragini), from Petén. Distinguishing characters from closely related species are provided.","PeriodicalId":35345,"journal":{"name":"Papeis Avulsos de Zoologia","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47624356","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-08-02DOI: 10.11606/1807-0205/2022.62.040
L. F. Iniesta, R. S. Bouzan, L. D. Battirola, A. Brescovit
New records for the species Exallostreptus vanzolinii Hoffman, 1988 and Guaporeptus paradisius Hoffman, 1988, known only from the state of Rondônia, are made from the state of Mato Grosso, Brazil. Figures of gonopods, first and second leg-pair of males are provided. In addition, an updated list of 19 Spirostreptidae species from Mato Grosso is provided, with the species Plusioporus salvadorii, Trichogonostreptus (Oreastreptus) mattogrossensis, and Urostreptus tampiitauensis widely distributed in the state.
{"title":"New records for the poorly-known monotypic genera Exallostreptus and Guaporeptus, and a list of species from Mato Grosso state, Brazil (Diplopoda: Spirostreptida: Spirostreptidae)","authors":"L. F. Iniesta, R. S. Bouzan, L. D. Battirola, A. Brescovit","doi":"10.11606/1807-0205/2022.62.040","DOIUrl":"https://doi.org/10.11606/1807-0205/2022.62.040","url":null,"abstract":"New records for the species Exallostreptus vanzolinii Hoffman, 1988 and Guaporeptus paradisius Hoffman, 1988, known only from the state of Rondônia, are made from the state of Mato Grosso, Brazil. Figures of gonopods, first and second leg-pair of males are provided. In addition, an updated list of 19 Spirostreptidae species from Mato Grosso is provided, with the species Plusioporus salvadorii, Trichogonostreptus (Oreastreptus) mattogrossensis, and Urostreptus tampiitauensis widely distributed in the state.","PeriodicalId":35345,"journal":{"name":"Papeis Avulsos de Zoologia","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45163564","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-08-02DOI: 10.11606/1807-0205/2022.62.044
A. Martins
The first record of the genus Deinodryinus Perkins and the description of a new species Deinodryinus noronhensis sp. nov. from oceanic archipelago of Fernando de Noronha (Brazil) are performed. Additionally, an illustration of the new species and a modified key are presented together with a discussion on the Deinodryinus records for the northeastern region of Brazil.
{"title":"A new species of pincer wasps of Deinodryinus Perkins (Hymenoptera, Dryinidae) from oceanic archipelago of Fernando de Noronha, Brazil","authors":"A. Martins","doi":"10.11606/1807-0205/2022.62.044","DOIUrl":"https://doi.org/10.11606/1807-0205/2022.62.044","url":null,"abstract":"The first record of the genus Deinodryinus Perkins and the description of a new species Deinodryinus noronhensis sp. nov. from oceanic archipelago of Fernando de Noronha (Brazil) are performed. Additionally, an illustration of the new species and a modified key are presented together with a discussion on the Deinodryinus records for the northeastern region of Brazil.","PeriodicalId":35345,"journal":{"name":"Papeis Avulsos de Zoologia","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42373279","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-08-02DOI: 10.11606/1807-0205/2022.62.043
Rodrigo M. Barahona‐Segovia, Andrés Puiggros, Ricardo A. Varela-Varela, Vicente Valdés-Guzmán, Andrés Ramírez-Cuadros, Laura Pañinao-Monsálvez
The biology and ecology of wedge-shaped beetles (Coleoptera: Ripiphoridae) are scarcely known in the Neotropical realm. Chilean species of this beetle family are currently represented by two genera: Macrosiagon Hentz, 1830 and Ripiphorus Bosc, 1791, and three species, only known from their type localities. Here, we present an updated catalog of Chilean Ripiphoridae, along with the new distributional and biology records. Also, Macrosiagon flavipennis LeConte, 1866 (Ripiphorinae: Macrosiagonini) has been reported for the first time in Chile. We discuss the reasons for the presence of M. flavipennis in urban areas, the state of knowledge of the endemic species presents in Chile in relation to their distribution and the opportunity to use opportunistic records to better understand their natural history.
{"title":"Updated catalog of the Chilean wedge-shaped beetles (Coleoptera: Ripiphoridae) with the first records of Macrosiagon flavipennis (LeConte) in Chile","authors":"Rodrigo M. Barahona‐Segovia, Andrés Puiggros, Ricardo A. Varela-Varela, Vicente Valdés-Guzmán, Andrés Ramírez-Cuadros, Laura Pañinao-Monsálvez","doi":"10.11606/1807-0205/2022.62.043","DOIUrl":"https://doi.org/10.11606/1807-0205/2022.62.043","url":null,"abstract":"The biology and ecology of wedge-shaped beetles (Coleoptera: Ripiphoridae) are scarcely known in the Neotropical realm. Chilean species of this beetle family are currently represented by two genera: Macrosiagon Hentz, 1830 and Ripiphorus Bosc, 1791, and three species, only known from their type localities. Here, we present an updated catalog of Chilean Ripiphoridae, along with the new distributional and biology records. Also, Macrosiagon flavipennis LeConte, 1866 (Ripiphorinae: Macrosiagonini) has been reported for the first time in Chile. We discuss the reasons for the presence of M. flavipennis in urban areas, the state of knowledge of the endemic species presents in Chile in relation to their distribution and the opportunity to use opportunistic records to better understand their natural history.","PeriodicalId":35345,"journal":{"name":"Papeis Avulsos de Zoologia","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41364067","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-08-02DOI: 10.11606/1807-0205/2022.62.041
A. Barbosa, E. S. Oliveira-Júnior, C. C. Muniz, W. Lázaro, VANCLEBER DIVINO SILVA-ALVES, M. Santos-Filho
This study aims to evaluate the dynamics of fish trophic guilds according to the longitudinal gradient of the Paraguay River, northern Pantanal, Brazil. Three river segments were sampled: plateau, confluence and plain. These segments have different physical and biological characteristics, with high water flow in forest areas in plateau and slow flow in meanders, with Pantanal typical vegetation. In total, 26,542 individuals distributed in 130 fish species were collected. The sampled species were characterized in seven trophic guilds. From the seven trophic guilds identified, only three were statistically related to the type of the environment; herbivores were more abundant in the plateau, piscivores in the confluence, and invertivores in the plain. According to values of corrected Akaike Information Criteria, the environmental variable that best explains the abundance of piscivorous fishes in the segments sampled in the Paraguay River was water transparency. For herbivores, the model that explained the variation in abundance was composed by temperature, altitude and dense forest proportion. The variable altitude best represented the abundance of invertivores. Water transparency, temperature, altitude, river width and dense forest proportion were determining factors for the distribution of piscivorous, herbivorous and invertivorous fishes as a response to an environmental gradient that meets its ecological requirements. Understanding the trophic relationships is fundamental for management actions, contributing to the maintenance of ecosystem services of different species. Therefore, future research must be taken into account regarding management and ecological relationships.
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