International Journal of Odonatology最新文献_第10页

Dragonfly flight: morphology, performance and behaviour 蜻蜓飞行:形态、性能和行为

IF 0.9 4区农林科学

International Journal of Odonatology Pub Date : 2020-01-02 DOI: 10.1080/13887890.2019.1687991

R. Wootton

{"title":"Dragonfly flight: morphology, performance and behaviour","authors":"R. Wootton","doi":"10.1080/13887890.2019.1687991","DOIUrl":"https://doi.org/10.1080/13887890.2019.1687991","url":null,"abstract":"Odonata flight performance capabilities and behaviour and their body and wing form diversity are explored, and their interrelationships discussed theoretically and from observational evidence. Overall size and particularly wing loading appear predictably to be related to speed range. In Anisoptera at least, relatively short bodies and long wings should favour high speed manoeuvrability, though further information is needed. Medium and low aspect ratio wings are associated with gliding and soaring, but the significance of aspect ratio in flapping flight is less straightforward, and much depends on kinematics. Narrow wing bases, petiolation, basal vein fusion, distal concentration of area and a proximally positioned nodus – described by a newly defined variable, the “nodal index” – all allow high torsion between half-strokes and favour habitually slow flight, while broad wing bases are useful at higher speeds. The “basal complex” in all families seems to be a mechanism for automatic lowering of the trailing edge and maintenance of an effective angle of attack, but the relative merits of different configurations are not yet clear. There is serious need for more quantitative information on a wider range of species and families.","PeriodicalId":50297,"journal":{"name":"International Journal of Odonatology","volume":"23 1","pages":"31 - 39"},"PeriodicalIF":0.9,"publicationDate":"2020-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/13887890.2019.1687991","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43468004","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: 12

Ecological correlates of odonate assemblages of a Mediterranean stream, Wadi Cherf, northeastern Algeria: implications for conservation 阿尔及利亚东北部Wadi Cherf一条地中海河流中有机物组合的生态相关性:对保护的启示

IF 0.9 4区农林科学

International Journal of Odonatology Pub Date : 2019-10-02 DOI: 10.1080/13887890.2019.1688199

Z. Bouhala, Chakri Khémissa, Joaquín Márquez‐Rodríguez, M. Ferreras‐Romero, Farrah Samraoui, B. Samraoui

{"title":"Ecological correlates of odonate assemblages of a Mediterranean stream, Wadi Cherf, northeastern Algeria: implications for conservation","authors":"Z. Bouhala, Chakri Khémissa, Joaquín Márquez‐Rodríguez, M. Ferreras‐Romero, Farrah Samraoui, B. Samraoui","doi":"10.1080/13887890.2019.1688199","DOIUrl":"https://doi.org/10.1080/13887890.2019.1688199","url":null,"abstract":"We investigated the odonates of Wadi Cherf, a tributary of Wadi Seybouse, and explored the main environmental factors that may be important drivers of the abundance and diversity of Odonata assemblages. PCA analyses demonstrated a significant altitudinal gradient associated with water flow, temperature, vegetation cover, substrate and adjacent land use. Notably, pollution was a dominant structuring factor and the most widespread species, Ischnura graellsii and the North African endemic Platycnemis subdilatata, were the most pollution-tolerant species. Similarly, co-inertia analysis indicated that environmental factors could account for 70% of the co-variation in shaping odonate assemblages. Equally important, threatened species were associated with less degraded but vulnerable habitats, most susceptible to anthropogenic impacts. There is thus a need to develop monitoring tools to assess the ecological integrity of North African rivers and implement a management plan that considers both connectivity and heterogeneity to ensure that Wadi Cherf, a sanctuary to three threatened species Calopteryx exul (EN), Coenagrion mercuriale (EN) and Gomphus lucasii (VU), continues to provide critical ecosystem functions.","PeriodicalId":50297,"journal":{"name":"International Journal of Odonatology","volume":"22 1","pages":"181 - 197"},"PeriodicalIF":0.9,"publicationDate":"2019-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/13887890.2019.1688199","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44977862","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: 8

Effectiveness of organic terrace rice cultivation in conservation of odonates in Sikkim, Eastern Himalaya, India 印度喜马拉雅山脉东部锡金有机梯田水稻栽培对牙形石保护的效果

IF 0.9 4区农林科学

International Journal of Odonatology Pub Date : 2019-10-02 DOI: 10.1080/13887890.2019.1700175

S. Dewan, Nikesh Darnal, Bhoj Kumar Acharya, K. Subramanian, B. Chettri, V. J. Jins

{"title":"Effectiveness of organic terrace rice cultivation in conservation of odonates in Sikkim, Eastern Himalaya, India","authors":"S. Dewan, Nikesh Darnal, Bhoj Kumar Acharya, K. Subramanian, B. Chettri, V. J. Jins","doi":"10.1080/13887890.2019.1700175","DOIUrl":"https://doi.org/10.1080/13887890.2019.1700175","url":null,"abstract":"Conversion of natural habitat into agricultural landscape has been identified as one of the major drivers of habitat loss. Human-modified ecosystems, such as agricultural land, have gained significant attention in terms of the conservation of their native biodiversity. We studied the effectiveness of organic agroecosystems in conserving odonate diversity by comparing organic terrace rice cultivation with a nearby natural forest system with streams in Sikkim, Eastern Himalaya, India. We sampled adult odonates using a transect count method (laying six permanent transects) covering two villages (Lingmoo in South Sikkim and Dzongu in North Sikkim), making a total of 48 transect counts. A total of 881 individual odonates representing 31 species under two suborders (16 Anisoptera and 15 Zygoptera) and seven families were recorded during this study. Of these, 20 species representing three families and 18 species representing seven families were observed in terrace rice cultivation and the natural forest system, respectively. Beta diversity estimates showed that the community composition of the odonates differed qualitatively (incidence measure) and quantitatively (abundance measure) between the two land use types. Turnover component (abundance balance in case of abundance based beta diversity measure) had higher contribution in the overall beta diversity, suggesting that one assemblage of species is being replaced by another due to environmental sorting. The variation in community composition between the two habitats was statistically significant. Our results suggest that organic wetland habitats are important for conservation of odonates and associated biodiversity (especially herpetofauna) in the Himalaya and require urgent conservation attention.","PeriodicalId":50297,"journal":{"name":"International Journal of Odonatology","volume":"22 1","pages":"207 - 222"},"PeriodicalIF":0.9,"publicationDate":"2019-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/13887890.2019.1700175","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43216725","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

Description of Protosticta binhi sp. n. from the Central Highlands of Vietnam (Odonata: Zygoptera: Platystictidae) 越南中部高地原丝酵母的描述（Odinata:Zygoptera:Platystictidae）

IF 0.9 4区农林科学

International Journal of Odonatology Pub Date : 2019-10-02 DOI: 10.1080/13887890.2019.1696238

Q. T. Phan, Van Quang To, Dang Mau Trinh, Van Khuong Dinh

引用次数: 1

Flight initiation distance in dragonflies is species-specific, positively related to starting distance and sometimes body length 蜻蜓的起始飞行距离具有物种特异性，与起始飞行距离呈正相关，有时与体长呈正相关

IF 0.9 4区农林科学

International Journal of Odonatology Pub Date : 2019-10-02 DOI: 10.1080/13887890.2019.1668306

Tom Bell, Jack Harriss, A. Ruzaini, C. Fernando, P. Guay, M. Weston

{"title":"Flight initiation distance in dragonflies is species-specific, positively related to starting distance and sometimes body length","authors":"Tom Bell, Jack Harriss, A. Ruzaini, C. Fernando, P. Guay, M. Weston","doi":"10.1080/13887890.2019.1668306","DOIUrl":"https://doi.org/10.1080/13887890.2019.1668306","url":null,"abstract":"Predator escape behaviour is a critical component of dragonfly life history. Flight initiation distance is the distance at which escape commences, and is well studied in vertebrates, barely studied in invertebrates, and entirely unstudied in dragonflies. Here we test four principles regarding flight initiation distance as derived from studies of vertebrates to examine if they apply to dragonflies in Sri Lanka: (1) flight initiation distance is a species-specific trait; (2) flight initiation distance increases with starting distance (the distance at which the experimenter begins an approach); (3) larger individuals have longer flight initiation distances; and (4) flight initiation distance varies between the sexes in some species. We collected 105 flight initiation distances from 11 species (known sex and size). Flight initiation distances varied between species and positively with starting distance. In one of three data-rich species (n ≥ 10), flight initiation distance was positively associated with body length. Flight initiation distance did not vary with sex in our sample. Escape responses evoked by standardised human approaches represent a fruitful methodology to study dragonfly escape behaviour in the wild.","PeriodicalId":50297,"journal":{"name":"International Journal of Odonatology","volume":"22 1","pages":"173 - 179"},"PeriodicalIF":0.9,"publicationDate":"2019-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/13887890.2019.1668306","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48762682","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

Reply to Nel, Garrouste, and Schubnel (2019) “The wing venation of Odonata. International Journal of Odonatology” 回复Nel，Garrouste和Schubnel（2019）“Odonata的翅膀脉络。国际口腔学杂志”

IF 0.9 4区农林科学

International Journal of Odonatology Pub Date : 2019-09-18 DOI: 10.1080/13887890.2019.1654932

J. Trueman, R. Rowe

引用次数: 1

A study of Coeliccia cyanomelas Ris, 1912 (Odonata: Platycnemididiae) 氰基草的研究，1912（Odonata:Platycnemididiae）

IF 0.9 4区农林科学

International Journal of Odonatology Pub Date : 2019-09-18 DOI: 10.1080/13887890.2019.1641853

Xin Yu, Min Zhang, Xin Ning

引用次数: 1

Body temperatures in Sympecma paedisca (Zygoptera, Lestidae) in the autumn in the Central Ukraine 乌克兰中部蝴蝶科昆虫的体温

IF 0.9 4区农林科学

International Journal of Odonatology Pub Date : 2019-04-03 DOI: 10.1080/13887890.2019.1587645

S. Gorb

引用次数: 0

Assessment of the water quality and Odonata assemblages in three waterbodies in Ilara-Mokin, south-western Nigeria 尼日利亚西南部Ilara Mokin三个水体的水质和蜻蜓群落评估

IF 0.9 4区农林科学

International Journal of Odonatology Pub Date : 2019-04-03 DOI: 10.1080/13887890.2019.1593889

B. Adu, B. Amusan, T. Oke

{"title":"Assessment of the water quality and Odonata assemblages in three waterbodies in Ilara-Mokin, south-western Nigeria","authors":"B. Adu, B. Amusan, T. Oke","doi":"10.1080/13887890.2019.1593889","DOIUrl":"https://doi.org/10.1080/13887890.2019.1593889","url":null,"abstract":"This study investigated the biological water quality and Odonata assemblages in three waterbodies in Ilara-Mokin, with the aim of determining the ecological integrity of the ecosystems. Sampling of Odonata specimens was carried out over April–August, 2017 between 9.00am and 4.00pm under favourable conditions. Some physico-chemical parameters of the water such as dissolved oxygen, electrical conductivity, temperature, flow rate, pH, and water depth were also investigated. A total of 41 odonate species were recorded in this study and this was represented by 29 dragonfly and 12 damselfly species. These species are contained in seven families (Macromiidae, Gomphidae, Libellulidae, Calopterygidae, Coenagrionidae, Chlorocyphidae and Platycnemididae). The seven families were recorded at Aponmu River while Omifunfun River and Isokun River accounted for six and four families respectively. However, the highest number of individuals was collected at Isokun River. Libellulidae was the dominant family. Diversity indices revealed that Aponmu river was the richest in terms of species richness, diversity and taxa distribution (Shannon: 3.18, Simpson D: 0.95, Margalef: 7.38, evenness: 7.38, equitability: 0.93). Dragonfly Biotic Index (DBI) analysis indicated that Omifunfun River represented the best habitat condition in the study area while Isokun River was considered the most perturbed sampled site in the study area. Conservative efforts should be intensified to protect Omifunfun River in order to preserve all extant aquatic biota and other available resources therein.","PeriodicalId":50297,"journal":{"name":"International Journal of Odonatology","volume":"22 1","pages":"101 - 114"},"PeriodicalIF":0.9,"publicationDate":"2019-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/13887890.2019.1593889","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49579595","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: 7

Description of the final stadium larva of Anisagrion allopterum (Odonata: Coenagrionidae) 异翅Anistagion体育场最终幼虫的描述（Odinata:Coenagrionidae）

IF 0.9 4区农林科学

International Journal of Odonatology Pub Date : 2019-04-03 DOI: 10.1080/13887890.2019.1637378

Jareth Román-Heracleo, R. Novelo-Gutiérrez

引用次数: 0