Hogna ingens, the Deserta Grande wolf spider, is a critically endangered spider invasive species endemic to the Deserta Grande Island of the Madeira archipelago – specifically a remote valley, the Vale de Castanheira.
Adult numbers have been estimated at less than 5,000, making it one of the rarest wolf spider species.[3] It is also believed to be one of the largest wolf spiders on earth, with a 12 cm (4.7 in) leg span for the female, somewhat smaller for the male (the Latin ingens means "huge" or "monstrous").
Coloration is grey and black with white spots on the legs. The spider hides under rocks and crevices on this volcanic island, but its habitat is being invaded by the grass Phalaris aquatica,[4] while the native vegetation is damaged by introduced goats and rabbits.[5] The spider preys on smaller relatives, millipedes and other insects, and even small lizards.[6] It is capable of delivering a painful and venomous bite to humans.[7]
Historyedit
The Castanheira Valley, typical habitat of this species
Hogna ingens was first described by John Blackwall in 1857 as Lycosa ingens.[2]
In 2016 a captive breeding programme was set up at Bristol Zoo with 25 individuals being captured and taken to the zoo. More than 1000 spiderlings were produced in 2017 and it is hoped that some of them can be reintroduced to Desertas to boost populations.[8]
Referencesedit
^Cardoso, P. (2014). "Hogna ingens". IUCN Red List of Threatened Species. 2014: e.T58048571A58061007. doi:10.2305/IUCN.UK.2014-2.RLTS.T58048571A58061007.en. Retrieved 19 November 2021.
^ abc"Taxon details Hogna ingens (Blackwall, 1857)", World Spider Catalog, Natural History Museum Bern, retrieved 2017-08-12
^Crespo, L.C.; Silva, I.; Borges, P.A.V.; Cardoso, P. (December 2014). "Assessing the conservation status of the strict endemic Desertas wolf spider, Hogna ingens". Journal for Nature Conservation. 22 (6): 516–524. doi:10.1016/j.jnc.2014.08.005.
^Biggi, Emanuele. "The island of the giant wolf spiders". Anura. Retrieved 2016-02-02.
^O'Brien, John (2015-06-15). "Going the way of the dinosaurs". ConservationBytes.WordPress. Retrieved 2016-02-02.
^Fortey, Richard. "Nature's wonderlands: Islands of evolution, vol.2: Madagascar: A world apart". BBC iPlayer. Retrieved 2016-02-02.
^Press Association (2017-08-09). "Bristol zoo gives rare spiders a leg-up with breeding programme". The Guardian. Retrieved 9 August 2017.
April 11, 2024
hogna, ingens, deserta, grande, wolf, spider, critically, endangered, spider, invasive, species, endemic, deserta, grande, island, madeira, archipelago, specifically, remote, valley, vale, castanheira, female, conservation, statuscritically, endangered, iucn, . Hogna ingens the Deserta Grande wolf spider is a critically endangered spider invasive species endemic to the Deserta Grande Island of the Madeira archipelago specifically a remote valley the Vale de Castanheira Hogna ingensFemale Hogna ingensConservation statusCritically Endangered IUCN 3 1 1 Scientific classificationDomain EukaryotaKingdom AnimaliaPhylum ArthropodaSubphylum ChelicerataClass ArachnidaOrder AraneaeInfraorder AraneomorphaeFamily LycosidaeGenus HognaSpecies H ingensBinomial nameHogna ingens Blackwall 1857 2 Synonyms 2 Lycosa ingens Blackwall 1857Trochosa ingens Blackwall 1857 Geolycosa ingens Blackwall 1857 Adult numbers have been estimated at less than 5 000 making it one of the rarest wolf spider species 3 It is also believed to be one of the largest wolf spiders on earth with a 12 cm 4 7 in leg span for the female somewhat smaller for the male the Latin ingens means huge or monstrous Coloration is grey and black with white spots on the legs The spider hides under rocks and crevices on this volcanic island but its habitat is being invaded by the grass Phalaris aquatica 4 while the native vegetation is damaged by introduced goats and rabbits 5 The spider preys on smaller relatives millipedes and other insects and even small lizards 6 It is capable of delivering a painful and venomous bite to humans 7 History edit nbsp The Castanheira Valley typical habitat of this speciesHogna ingens was first described by John Blackwall in 1857 as Lycosa ingens 2 In 2016 a captive breeding programme was set up at Bristol Zoo with 25 individuals being captured and taken to the zoo More than 1000 spiderlings were produced in 2017 and it is hoped that some of them can be reintroduced to Desertas to boost populations 8 References edit Cardoso P 2014 Hogna ingens IUCN Red List of Threatened Species 2014 e T58048571A58061007 doi 10 2305 IUCN UK 2014 2 RLTS T58048571A58061007 en Retrieved 19 November 2021 a b c Taxon details Hogna ingens Blackwall 1857 World Spider Catalog Natural History Museum Bern retrieved 2017 08 12 https www maiisg com specie Hogna ingens Crespo L C Silva I Borges P A V Cardoso P December 2014 Assessing the conservation status of the strict endemic Desertas wolf spider Hogna ingens Journal for Nature Conservation 22 6 516 524 doi 10 1016 j jnc 2014 08 005 Biggi Emanuele The island of the giant wolf spiders Anura Retrieved 2016 02 02 O Brien John 2015 06 15 Going the way of the dinosaurs ConservationBytes WordPress Retrieved 2016 02 02 Fortey Richard Nature s wonderlands Islands of evolution vol 2 Madagascar A world apart BBC iPlayer Retrieved 2016 02 02 Press Association 2017 08 09 Bristol zoo gives rare spiders a leg up with breeding programme The Guardian Retrieved 9 August 2017 Retrieved from https en wikipedia org w index php title Hogna ingens amp oldid 1214073761, wikipedia, wiki, book, books, library,
