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Biology

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Odonata species start their life as aquatic larvae, passing through a series of developmental stages or 'stadia' and undergoing several moults as they grow. Before the final moult (emergence), metamorphosis occurs in which the larvae transform into the adult form. Adults complete their metamorphosis after emergence and undergo a pre-reproductive phase known as the maturation period, when individuals normally develop their full adult colour (4). Although the biology of the faded pincertail remains mostly unstudied, certain details can be inferred from what is known about other pincertails in the same habitats and climatic areas. Eggs should hatch three to four weeks after deposition and the larval period should spread over two to three years, passing through 13 to 15 stadia. The larvae hunt hidden within the sand or leaf litter detritus at the surface of the sediments. Emergence is rapid, and the adult flight period for the faded pincertail lasts from May to August (2). Faded pincertails do not defend territories and is easily observed on the ground, on stones in the middle of rivers, or perched in the vegetation. Aggressiveness between males seems to remain rather low in this species, unlike in other pincertails. Females lay eggs alone, not being guarded by their mate, touching water by the tip of their abdomen during a typical confused flight, so that eggs will detach easily and fall to the bottom of the river, where a mucus envelope fixes them to the substrate. Adult Odonata feed on flying insects and are often generalised, opportunistic feeders, sometimes congregating around abundant prey sources such as swarms of other insects (4).
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Conservation

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There are currently no conservation measures targeting this species (1).
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Description

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As its common name suggests, this species possesses more subdued colours than most of its pincertail (Onychogomphus spp.) relatives, being mostly sandy brown.
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Habitat

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The faded pincertail reproduces only in running waters such as brooks and rivers of various sizes, exceptionally up to 2,000 metres above sea level in Morocco (3).
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Range

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Known from North Africa (Algeria, Morocco, Tunisia) and the Iberian Peninsula (Spain and Portugal) (1).
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Status

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Classified as Vulnerable (VU) on the IUCN Red List 2007 (1).
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Threats

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Populations of the faded pincertail have decreased over recent years as a result of pollution degrading essential habitat, and irrigation and excessive water extraction for human use leading to the drying up of streams and rivers. This pattern of decline is expected to continue, particularly due to the increasing frequency and severity of summer droughts in the Mediterranean area, and human population expansion in northern Africa, leading to a growing water demand and increased levels of pollution (1).
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Onychogomphus costae ( Catalan; Valencian )

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Onychogomphus costae és un odonat anisòpter de la família dels gòmfids.[1]

Distribució

Es tracta d'un endemisme de la península Ibèrica i nord-oest d'Àfrica: es troba a Tunísia, Algèria, Marroc, Portugal i Espanya. En general, és rara en gran part de la seva àrea de distribució però comuna en algunes localitats.[2][1]

A Catalunya se n'han trobat alguns exemplars a La Noguera.[3]

Descripció

És una espècie que sol passar inadvertida degut als seva coloració críptica (marró clara) i a la seva grandària discreta, d'entre 43 i 46 mm de longitud entre el cap i l'extrem abdominal.[1]

Ecologia

Viuen en rius i rerols amb la llera de sorra o grava. Probablement prefereixi hàbitats estacionals, on es formin basses al baixar el nivell de l'aigua.[1] També pot acceptar aigües salobres.[2] El seu comportament és poc conegut; acostumen a romandre llargs períodes allunyats de l'aigua.[1]

Període de vol

Al Magreb s'han detectat individus des de maig fins a l'agost, mentre que a zones com Extremadura, només vola al juny i juliol.[1]

Referències

  1. 1,0 1,1 1,2 1,3 1,4 1,5 Dijsktra, Klaas-Douwe B.; Lewington, Richard. Guía de campo de las libélulas de España y de Europa (en castellà). Omega, 2014. ISBN 978-84-282-1602-9.
  2. 2,0 2,1 «Onychogomphus costae» (en anglès). IUCN Red List. Boudot, J.-P. 2010. [Consulta: 6 desembre 2015].
  3. «Oxygastra, grup d'estudi dels odonats de Catalunya». [Consulta: 1r gener 2016].
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Onychogomphus costae: Brief Summary ( Catalan; Valencian )

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Onychogomphus costae és un odonat anisòpter de la família dels gòmfids.

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Onychogomphus costae ( Welsh )

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Gwas neidr o deulu'r Gomphidae (neu'r 'Gweision neidr tindrom') yw'r Onychogomphus costae. Fel llawer o weision neidr, ei gynefin yw pyllau o ddŵr, llynnoedd, nentydd neu afonydd.

Gweler hefyd

Cyfeiriadau

Dolen allanol

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Onychogomphus costae: Brief Summary ( Welsh )

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Gwas neidr o deulu'r Gomphidae (neu'r 'Gweision neidr tindrom') yw'r Onychogomphus costae. Fel llawer o weision neidr, ei gynefin yw pyllau o ddŵr, llynnoedd, nentydd neu afonydd.

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Onychogomphus costae

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Onychogomphus costae is a species of dragonfly in the family Gomphidae. It is found in Algeria, Morocco, Portugal, Spain, and Tunisia. Its natural habitat is rivers. It is threatened by habitat loss.

References

  1. ^ Boudot, J.-P. (2020). "Onychogomphus costae". IUCN Red List of Threatened Species. 2020: e.T60291A140545107. doi:10.2305/IUCN.UK.2020-3.RLTS.T60291A140545107.en. Retrieved 16 November 2021.
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Onychogomphus costae: Brief Summary

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Onychogomphus costae is a species of dragonfly in the family Gomphidae. It is found in Algeria, Morocco, Portugal, Spain, and Tunisia. Its natural habitat is rivers. It is threatened by habitat loss.

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Onychogomphus costae ( Basque )

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Onychogomphus costae Onychogomphus generoko burruntzia da, hego-mendebaldeko Europan eta ipar-mendebaldeko Afrikan endemikoa dena[1]. Ibaietan bizi den burruntzi hau bere habitataren galera dela eta mehatxaturik dago.

Basa eta Itsas Fauna eta Landaredian Arriskuan dauden Espezieen Euskadiko Zerrendaren bakanen kategorian sartu zuten.[2]

Erreferentziak

Animalia Artikulu hau animaliei buruzko zirriborroa da. Wikipedia lagun dezakezu edukia osatuz.
(RLQ=window.RLQ||[]).push(function(){mw.log.warn("Gadget "ErrefAurrebista" was not loaded. Please migrate it to use ResourceLoader. See u003Chttps://eu.wikipedia.org/wiki/Berezi:Gadgetaku003E.");});
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Onychogomphus costae: Brief Summary ( Basque )

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Onychogomphus costae Onychogomphus generoko burruntzia da, hego-mendebaldeko Europan eta ipar-mendebaldeko Afrikan endemikoa dena. Ibaietan bizi den burruntzi hau bere habitataren galera dela eta mehatxaturik dago.

Basa eta Itsas Fauna eta Landaredian Arriskuan dauden Espezieen Euskadiko Zerrendaren bakanen kategorian sartu zuten.

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Moorse tanglibel ( Dutch; Flemish )

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Insecten

De moorse tanglibel (Onychogomphus costae) is een libellensoort uit de familie van de rombouten (Gomphidae), onderorde echte libellen (Anisoptera).[2]

De moorse tanglibel staat op de Rode Lijst van de IUCN als gevoelig, beoordelingsjaar 2007, de trend van de populatie is volgens de IUCN dalend. De soort komt voor in Algerije, Marokko, Tunesië en het zuidoosten van het Iberisch Schiereiland.[1]

De wetenschappelijke naam van de soort is voor het eerst geldig gepubliceerd in 1885 door Selys.

Bronnen, noten en/of referenties
Geplaatst op:
29-10-2011
Dit artikel is een beginnetje over biologie. U wordt uitgenodigd om op bewerken te klikken om uw kennis aan dit artikel toe te voegen. Beginnetje
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Onychogomphus costae ( Polish )

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Onychogomphus costae – gatunek ważki z rodzaju Onychogomphus należącego do rodziny gadziogłówkowatych.

Przypisy

  1. Onychogomphus costae. Czerwona księga gatunków zagrożonych (IUCN Red List of Threatened Species) (ang.).

Bibliografia

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Onychogomphus costae: Brief Summary ( Polish )

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Onychogomphus costae – gatunek ważki z rodzaju Onychogomphus należącego do rodziny gadziogłówkowatych.

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Onychogomphus costae ( Portuguese )

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Onychogomphus costae é uma espécie de libelinha da família Gomphidae.

Pode ser encontrada nos seguintes países: Argélia, Marrocos, Portugal, Espanha e Tunísia.

Os seus habitats naturais são: rios.

Está ameaçada por perda de habitat.

Referências

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Onychogomphus costae: Brief Summary ( Portuguese )

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Onychogomphus costae é uma espécie de libelinha da família Gomphidae.

Pode ser encontrada nos seguintes países: Argélia, Marrocos, Portugal, Espanha e Tunísia.

Os seus habitats naturais são: rios.

Está ameaçada por perda de habitat.

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Onychogomphus costae ( Vietnamese )

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Onychogomphus costae là một loài chuồn chuồn ngô thuộc họ Gomphidae. Nó được tìm thấy ở Algérie, Maroc, Bồ Đào Nha, Tây Ban Nha, và Tunisia. Môi trường sống tự nhiên của nó là các con sông. Nó bị đe dọa do mất môi trường sống.

Nguồn

Chú thích

Tham khảo


Hình tượng sơ khai Bài viết về họ chuồn chuồn ngô Gomphidae này vẫn còn sơ khai. Bạn có thể giúp Wikipedia bằng cách mở rộng nội dung để bài được hoàn chỉnh hơn.


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Onychogomphus costae: Brief Summary ( Vietnamese )

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Onychogomphus costae là một loài chuồn chuồn ngô thuộc họ Gomphidae. Nó được tìm thấy ở Algérie, Maroc, Bồ Đào Nha, Tây Ban Nha, và Tunisia. Môi trường sống tự nhiên của nó là các con sông. Nó bị đe dọa do mất môi trường sống.

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