International Journal of Odonatology最新文献_第7页

Partial submergence: An undescribed behavioral adjustment for thermoregulation at high ambient temperature in Aeshnidae 部分浸没:在高环境温度下，Aeshnidae的一种未描述的体温调节行为

IF 0.9 4区农林科学

International Journal of Odonatology Pub Date : 2021-01-01 DOI: 10.23797/2159-6719_24_5

P. Deviche

{"title":"Partial submergence: An undescribed behavioral adjustment for thermoregulation at high ambient temperature in Aeshnidae","authors":"P. Deviche","doi":"10.23797/2159-6719_24_5","DOIUrl":"https://doi.org/10.23797/2159-6719_24_5","url":null,"abstract":"Many insects including odonates thermoregulate using a combination of behavioral and physiological mechanisms. At high ambient temperature (Ta), these mechanisms include decreased heat production and increased heat loss. Heat production can be reduced by decreasing activity. Heat loss can be enhanced by perching in a shaded microhabitat where temperature is cooler than in the surrounding environment. Aeshnids, which are intermittent endotherms, increase heat loss at high Ta; also by increasing hemolymph circulation from the thorax, where most metabolic heat is produced, to the abdomen, where it dissipates to the environment by convection. While studying two aeshnid species (Anax junius and Rhionaeschna multicolor) at a Sonoran Desert (Arizona, USA) stream, I observed partially submerged mature individuals of both sexes of these species. This heretofore undescribed behavior was seen only at Ta; ≥ 43 °C and almost exclusively during the hottest part of the day (15:00–17:00 hr), when the daily difference between Ta; and water temperature (Tw) was, on average, largest. A cooling effect of partial submergence behavior on body temperature would, therefore, presumably be most effective also during this period. Several percher species of libellulids were present at the study site. These dragonflies are not known to use endothermy for thermoregulation or to increase hemolymph circulation to the abdomen to dissipate heat at high Ta;, and none was ever observed to partially submerge. It is suggested in aeshnids that partial submergence at high Ta; serves a thermoregulatory function by facilitating body heat dissipation from the abdomen.","PeriodicalId":50297,"journal":{"name":"International Journal of Odonatology","volume":"1 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68840893","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Distribution, autecology, genetic characterization, and conservation of the Western Mediterranean endemic dragonfly Orthetrum nitidinerve (Selys, 1841): insights from Italy 西地中海特有蜻蜓Orthetrum nitidinerve的分布、生态、遗传特征和保护（Selys，1841）：来自意大利的见解

IF 0.9 4区农林科学

International Journal of Odonatology Pub Date : 2020-10-01 DOI: 10.1080/13887890.2020.1828194

G. Assandri, G. Bazzi, D. Maggioni, A. Galimberti, B. Kunz

{"title":"Distribution, autecology, genetic characterization, and conservation of the Western Mediterranean endemic dragonfly Orthetrum nitidinerve (Selys, 1841): insights from Italy","authors":"G. Assandri, G. Bazzi, D. Maggioni, A. Galimberti, B. Kunz","doi":"10.1080/13887890.2020.1828194","DOIUrl":"https://doi.org/10.1080/13887890.2020.1828194","url":null,"abstract":"Aquatic macroinvertebrates are a primary component of freshwater ecosystems and one of the most threatened by anthropogenic pressures. Among them, dragonflies are a charismatic group of growing scientific and social interest. However, little is known about the natural history of several species. One paradigmatic example is the declining Orthetrum nitidinerve, a Western Mediterranean endemic anisopteran. We reviewed published and new data on this species, addressing distribution, autecology, and conservation (with a focus on Italy), and provide its first genetic characterization and phylogenetic placement within the genus. In Italy, the species is known from 50 sites so far (only 17 breeding populations) located in Sardinia and Sicily (1841–2019, only 22 from 1990 onward). Records from continental Italy are due to misidentification. The flight period in Italy spans between May and September. Habitat consists of permanent freshwater (mostly helocrene sources, seepages, and small brooks), slow-flowing, shallow, with muddy bottom deposits at elevation from the sea level up to 1000 m asl. All the breeding populations are found in open and sunny landscapes, almost invariably in extensive pasturelands. The species has strongly declined in Sicily, whereas several large populations still occur in Sardinia. The major threats identified so far are agriculture and grazing intensification or abandonment and drought/source desiccation determined by water overexploitation and climate change. The first ever provided mitochondrial COI barcode and ITS nuclear sequences allowed a first tentative phylogenetic placement of the species as a sister group of the O. brunneum/O. lineostigma lineage.","PeriodicalId":50297,"journal":{"name":"International Journal of Odonatology","volume":"23 1","pages":"405 - 422"},"PeriodicalIF":0.9,"publicationDate":"2020-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/13887890.2020.1828194","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49468011","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Odonata drift: a reassessment Odonata漂移：重新评估

IF 0.9 4区农林科学

International Journal of Odonatology Pub Date : 2020-09-30 DOI: 10.1080/13887890.2020.1818639

R. B. Dubois

{"title":"Odonata drift: a reassessment","authors":"R. B. Dubois","doi":"10.1080/13887890.2020.1818639","DOIUrl":"https://doi.org/10.1080/13887890.2020.1818639","url":null,"abstract":"More than 400 scientific journal articles and gray literature reports that addressed macroinvertebrate drift were reviewed and 63 articles were found that reported on the natural drift of Odonata at some taxonomic level. Forty-three species and 44 genera within 15 families (nine Zygoptera; six Anisoptera) were documented in the drift. Drift of another 13 species and eight genera was inferred from indirect evidence. The mean drift density reported was 0.03 m–3 (range <0.001–0.153 m–3), which is relatively low, but not unexpected because benthic densities of Odonata are often lower than those of the macroinvertebrate taxa that occur more frequently in the drift. Percent composition of odonates in the total drift was invariably <10% and usually <1%, but the percent was slightly higher if expressed as biomass or volume because odonate larvae are relatively large. Most odonates that drifted were not full grown. High flows were often associated with drift of Odonata, but not exclusively so; drift was highest at night and during summer months. Accidental (catastrophic) drift and active, behavioral drift to colonize new habitats and reduce crowding are thought to be the primary causes of Odonata drift, but its ecological significance would benefit from more research. The presumption that Odonata have a low predisposition to drift is probably not uniformly accurate. Use of drift nets specifically to collect odonates is unlikely to be as efficient as other collection methods in most circumstances, but it should not be entirely dismissed because drift nets are easy to set, relatively clean to operate, do not destroy habitats, and provide integrated samples of various habitats where it might be difficult or unsafe to use other methods.","PeriodicalId":50297,"journal":{"name":"International Journal of Odonatology","volume":"23 1","pages":"381 - 396"},"PeriodicalIF":0.9,"publicationDate":"2020-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/13887890.2020.1818639","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48923313","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Forcepsioneura machadorum (Coenagrionidae: Protoneurinae) sp. nov. from the Cerrado Biome of Minas Gerais, southeastern Brazil 来自巴西东南部米纳斯吉拉斯Cerrado生物群的机械纹Forcepioneura machadorum（Coenagrionidae:Protoneurinae）sp.nov

IF 0.9 4区农林科学

International Journal of Odonatology Pub Date : 2020-09-29 DOI: 10.1080/13887890.2020.1818640

Diogo Silva Vilela, H. Venancio, Jean Carlos Santos

引用次数: 4

Descriptions of the last instar larvae of two species of Megalestes Selys from Yunnan, China (Odonata: Zygoptera: Synlestidae) 云南两种大蠊的末龄幼虫记述（Odinata:合翅目：Synlestidae）

IF 0.9 4区农林科学

International Journal of Odonatology Pub Date : 2020-08-20 DOI: 10.1080/13887890.2020.1794987

GUO-HUI Yang, Qing Liu

引用次数: 0

New records of polymorphism in Asian libellulid dragonflies (Insecta: Odonata) 亚洲池蜻蜓多态性新记录（昆虫纲：蜻蜓目）

IF 0.9 4区农林科学

International Journal of Odonatology Pub Date : 2020-08-17 DOI: 10.1080/13887890.2020.1788999

S. Joshi, N. V. D. Poorten, A. Sumanapala, E. Nielsen, Jenis Patel, B. Nielsen, Dattaprasad Sawant, M. Sherif

引用次数: 2

Determinants of adult odonate community structure at several spatial scales: effects of habitat type and landscape context 几种空间尺度上成年牙形石群落结构的决定因素：栖息地类型和景观背景的影响

IF 0.9 4区农林科学

International Journal of Odonatology Pub Date : 2020-08-11 DOI: 10.1080/13887890.2020.1796831

W. Worthen, Mara G. Chamlee

{"title":"Determinants of adult odonate community structure at several spatial scales: effects of habitat type and landscape context","authors":"W. Worthen, Mara G. Chamlee","doi":"10.1080/13887890.2020.1796831","DOIUrl":"https://doi.org/10.1080/13887890.2020.1796831","url":null,"abstract":"Dragonflies (Insecta: Odonata) use both aquatic and terrestrial ecosystems, and the abundance and diversity of odonates should be good indicators of habitat integrity. To determine which environmental variables affect odonates, we sampled adult dragonflies three times at 12 sites in Pickens and Greenville Counties, SC, USA, in different habitats, at different spatial scales, across a landscape gradient from intact forest to urban locations. At each site, we established two 2 m × 20 m plots along the shoreline of each aquatic habitat. We sampled dragonflies in ten 2 m × 2 m subplots/plot, described the vegetation and substrate in these subplots and adjacent aquatic subplots, and measured the percent cover of different landforms within 500 m of each plot center. Using nested ANOVA and Akaike information criteria models, habitat type and correlating environmental variables (substrate type and bank vegetation) were the best predictors of community structure at all spatial scales. Streams and rivers had fewer individuals and species than lakes, and had a nested subset of species found in lake communities. Landscape elements were also important, with indices declining as barren land and grasslands increased. At the largest scale, anthropogenic changes to the landscape had mixed effects. Small habitats isolated in urban areas had a significantly depauperate, nested subset of species found in communities inhabiting larger natural areas. However, odonate abundance and diversity was highest at human-made lakes and ponds, suggesting that these anthropogenic features help maintain odonate communities.","PeriodicalId":50297,"journal":{"name":"International Journal of Odonatology","volume":"23 1","pages":"365 - 379"},"PeriodicalIF":0.9,"publicationDate":"2020-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/13887890.2020.1796831","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41728724","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

New records of the Paleotropical migrant Hemianax ephippiger in the Caribbean and a review of its status in the Neotropics 加勒比地区古热带移栖海鳗的新记录及其在新热带地区的地位

IF 0.9 4区农林科学

International Journal of Odonatology Pub Date : 2020-07-27 DOI: 10.1080/13887890.2020.1787237

Johanna Hedlund, Eva Ehrnsten, C. Hayward, Philipp Lehmann, Alex Hayward

引用次数: 4

Odonate fauna (Insecta: Odonata) from a locality in San Marcos River in the Sierra Norte of Puebla, Mexico 来自墨西哥普埃布拉山脉北部圣马科斯河的一个地区的Odonate动物群（昆虫纲：Odonata）

IF 0.9 4区农林科学

International Journal of Odonatology Pub Date : 2020-07-27 DOI: 10.1080/13887890.2020.1787871

J.D. Silva-Hurtado, J. Márquez, J. Escoto-Moreno, A. Martínez-Falcón

{"title":"Odonate fauna (Insecta: Odonata) from a locality in San Marcos River in the Sierra Norte of Puebla, Mexico","authors":"J.D. Silva-Hurtado, J. Márquez, J. Escoto-Moreno, A. Martínez-Falcón","doi":"10.1080/13887890.2020.1787871","DOIUrl":"https://doi.org/10.1080/13887890.2020.1787871","url":null,"abstract":"Odonates have been recognized as an important group for evaluating ecosystems since they are used as bioindicators of the conservation status of the habitat they occupy, in addition to being generalist predators feeding on invertebrates and small vertebrates. In this work, the biodiversity of adult odonates from a locality near the San Marcos River, in Puebla, Mexico, is analyzed through systematic sampling performed during 2018. Species richness and composition patterns were analyzed and compared between the rainy and dry seasons; the results were also compared with those of similar studies at the regional level. There were six families, 21 genera and 37 species that represent about 40% of the 95 species registered in Puebla. Coenagrionidae, with Argia, was the best representative of the Zygoptera, and Libellulidae was the best for the Anisoptera. Three of the species collected in the San Marcos River increased the species number from 95 to 98 for Puebla, making it currently placed 14th of 32 Mexican states in terms of the species richness of odonates nationwide. According to the Chao2 and Bootstrap estimators, the completeness of the inventory varied from 61% to 67% in the dry season, from 73% to 83% in the rainy season, and from 74% to 86% for the annual completeness. There were no significant differences in species richness and composition between the rainy and dry seasons. The species richness of odonates in this locality is the second highest known for Puebla and can still provide important data for this group.","PeriodicalId":50297,"journal":{"name":"International Journal of Odonatology","volume":"23 1","pages":"327 - 336"},"PeriodicalIF":0.9,"publicationDate":"2020-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/13887890.2020.1787871","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49482330","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Congruence of the composition of Odonata between dry and rainy seasons in the Maranhense Cerrado Maranhense Cerrado旱季和雨季Ododata组成的一致性

IF 0.9 4区农林科学

International Journal of Odonatology Pub Date : 2020-07-14 DOI: 10.1080/13887890.2020.1779826

Lucas Pereira Moura, Sheyla Regina Marques Couceiro, L. Juen, D. Veras

{"title":"Congruence of the composition of Odonata between dry and rainy seasons in the Maranhense Cerrado","authors":"Lucas Pereira Moura, Sheyla Regina Marques Couceiro, L. Juen, D. Veras","doi":"10.1080/13887890.2020.1779826","DOIUrl":"https://doi.org/10.1080/13887890.2020.1779826","url":null,"abstract":"Nos riachos tropicais a sazonalidade tem forte influência sobre a heterogeneidade, alterando os recursos disponíveis e ocasionando o carreamento de organismos, substrato e matéria orgânica. Provocando mudanças nas variáveis limnológicas, bem como na composição de espécies. O objetivo de nosso trabalho foi avaliar a congruência de resposta da comunidade de Odonata em duas estações sazonais em riachos da transição entre Cerrado e Caatinga. Foram amostrados 10 riachos afluentes do rio Itapecuru em Caxias, no leste do Maranhão nos meses de julho a dezembro de 2017 (menor precipitação) e em janeiro a junho de 2018 (maior precipitação). Um total de 386 espécimes foram coletados sendo 160 na estação de menor precipitação e 226 para a estação de maior precipitação. Não houve congruência de resposta para a ordem Odonata entre as estações, no entanto, para as subordens separadamente, Zygoptera apresentou alta congruência de imaturo, mas não houve para Anisoptera. Assim, em ambientes que enfrentam um forte estresse hídrico e devido as diferenças ecofisiológicas das subordens, a amostragem de apenas um período sazonal não fornece dados consistentes sobre a composição das espécies (Zygoptera apresentou semelhança na composição entre os dois períodos, mas não para Anisoptera), perdendo informações importantes sobre a diversidade local. Se o foco é a biodiversidade, o uso de subordinados pode estabelecer padrões de diversidade e adaptação entre as estações, tendo em vista as diferenças ecofisiológicas existentes.","PeriodicalId":50297,"journal":{"name":"International Journal of Odonatology","volume":"23 1","pages":"305 - 314"},"PeriodicalIF":0.9,"publicationDate":"2020-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/13887890.2020.1779826","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42704995","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2