Results 81 to 90 of about 5,277 (226)

The first fossil representative of the dragonfly family Synthemistidae

open access: yesActa Palaeontologica Polonica
Gallosynthemis bechlyi gen. et sp. nov., described from the Paleocene maar of Menat (Puy-de-Dôme, France) is the firstever fossil record of the dragonfly family Synthemistidae. It shows the main synapomorphies of the family, viz.
Andre Nel   +3 more
doaj   +1 more source

The Minnesota Species of Aeshna with Notes on their Habits and Distribution (Odonata: Aeshnidae) [PDF]

open access: yes, 2017
Apart from the well-known green darner, Anax junius, the species of Aeshna are the most familiar Minnesota Aeshnidae. These species are remarkably uniform in appearance.
Anderson, Myron A.   +2 more
core   +3 more sources

Comparing eDNA and Transect Methods for Aquatic Biodiversity Assessment in Lakes and Ponds

open access: yesMolecular Ecology Resources, Volume 25, Issue 3, April 2025.
ABSTRACT Biodiversity monitoring increasingly relies on molecular methods such as eDNA metabarcoding. However, sound applications have so far been only established for a limited number of taxonomic groups. More information on the strengths and weaknesses of eDNA methods, especially for poorly covered groups, is essential for practical applications to ...
Katharina Schwesig   +3 more
wiley   +1 more source

Previously unpublished Odonata records from Sarawak, Borneo : part 1, Kuching Division excluding Kubah National Park, and Samarahan Division [PDF]

open access: yes, 2013
Records of Odonata from Kuching and Samarahan, the western administrative divisions of Sarawak in Malaysian Borneo, are presented. Forty-two species are listed from Bako National Park, and eighty-nine species are listed from various other locations ...
Dow, Rory A., Reels, Graham T.
core  

The first evidence of breeding by Crocothemis sanguinolenta and Zygonyx torridus (Odonata: Libellulidae) in Iran [PDF]

open access: yesJournal of Insect Biodiversity and Systematics
For the first time, exuviae of Crocothemis sanguinolenta and Zygonyx torridus were collected from southern parts of Iran. Females of Z. torridus were also observed mating and ovipositing in two habitats.
Mohsen Kiany   +2 more
doaj  

The complete mitochondrial genome of Enallagma cyathigerum (Odonata: Coenagrionidae) and phylogenetic analysis

open access: yesMitochondrial DNA. Part B. Resources, 2017
To better understand the diversity and evolution of Odonata, we sequenced and annotated the complete mitochondrial genome (mitogenome) of Enallagma cyathigerum. This mitogenome was 16,661 bp in size and encoded the typical 37 genes, i.e.
Li Zhang   +5 more
doaj   +1 more source

\u3ci\u3eErythrodiplax Umbrata\u3c/i\u3e (Odonata: Libellulidae): New for Michigan [PDF]

open access: yes, 2018
Two band-winged dragonlets, Erythrodiplax umbrata (Linnaeus), collected in Wayne County, Michigan on 6 October 2007 represent the first records for this genus and species in the state, as well as the northernmost record for the species.
Craves, Julie A, O\u27Brien, Darrin S
core   +2 more sources

اثر اندازه روشنه (Gap) روی زنده مانی و رشد گونه های جنگلی درجنگلهای تروپیکال(مطالعه موردی: جنگل پژوهشی دانشگاه(UPM [PDF]

open access: yesپژوهش های علوم و فناوری چوب و جنگل, 2015
اندازه روشنه، برای تعیین پویایی جنگل مهم است، زیرا میزان فتوسنتز در حفرات جنگل یک فاکتور مهم موثر در رشد و زنده مانی نهال ها می باشد و گونه‌های مختلف بسته به اندازه روشنه، عکس العمل‌های متفاوتی از خود نشان میدهند. این تحقیق درجنگل پژوهشی دانشگاه UPMمالزی
سید غلامعلی جلالی
doaj  

Diversity of odonata in Danau Kemiri Pagardewa and adjacent areas, Lubai Ulu, Muara Enim, South Sumatera [PDF]

open access: yesBIO Web of Conferences
The existence and diversity of Odonata can provide information for habitat management planning, particularly regarding their role in the food chain and their potential as bioindicators in both aquatic and terrestrial habitats.
Irawan Frendi   +8 more
doaj   +1 more source

\u3ci\u3eWilliamsonia Lintneri\u3c/i\u3e (Odonata: Corduliidae) - A First Michigan Record With Additional Notes on \u3ci\u3eW. Fletcheri\u3c/i\u3e [PDF]

open access: yes, 2018
Williamsonia lintneri is newly recorded for Michigan, and additional Michigan sites are given for W. fletcheri. Both species appear to be bog/fen- obligate inhabitants, and adults may appear as early as late April in Michi- gan.
O\u27Brien, Mark F, Ross, Stephen
core   +2 more sources

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