Articolo da Rick West ("Stalking spiders")

[MatteoG]

Stamattina Rick West ci ha mandato una mail segnalandomi un articolo su Discover. Giro la comunicazione, per chi interessato:

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You may find this an interesting article about tarantula spiders;

http://www.discover.com/issues/feb-04/feat...spiders/?page=1

 

Cheers,

Rick

www.birdspiders.com

_____________________

 

 

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ARACNOFILIA.ORG -amministratore

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[RiKy]

Grazzie adesso me lo leggo ! []

 

RiKy [:71]*W la Sardegna*[:68]

[nausea]

'Tarantulas are far less dangerous to humans than other spiders, such as the black widow. No tarantula’s venom is toxic enough to kill a human, and they seldom bite. '

 

che dite, lo giriamo anche al legislatore e sottolineiamo qualche passaggio?

 

ps: mr marshall è un simpaticone; leggere la lista di animali che ospitava in casa e al dormitorio dell'università mi ricorda come vivo io []

 

sì sono contusioni da pugno. e sì la cosa mi va benissimo. sono illuminato.

[giantsquid]

Molto interessante!

Segnalate sempre articoli int ema su tutta la stampa.

 

Grazie mille

 

Franci

[EegaBeeva]

Grazie, Matteo.

L’articolo è interessante e ben scritto.

 

Questi, i passaggi che più mi hanno colpito:

 

<and females can live for 30 years>

 

<Tarantulas share many behaviors with mammals>

 

<Mother tarantulas are known to go without eating so that their offspring can eat

Although tarantulas are such eager eaters that they often eat each other, Marshall found that a female Tanzanian chestnut tarantula will put down its freshly killed prey and allow its young to feed instead. “They appear to sacrifice for their offspring,” Marshall says. “They defer eating themselves. They become anorexic. While the babies get fat, the mother shrinks.”>

 

<What’s more, some tarantula young appear to cooperate with one another at mealtime. With most spider species, the young push their siblings away from food. But in the Cameroon red tarantulas that Marshall describes in a forthcoming paper, spiderlings not only feed side by side without aggression but with their legs woven together. When Marshall saw this he realized: “They are huddle-feeding together. This is cooperation!”>

 

<The goliath makes the loudest sound of any spider—a hiss audible from 10 feet away and designed to scare off predators>

 

<I’ve repeatedly seen tarantulas respond to my entering a room by moving to a different part of the cage or going into a retreat,” he says. “When you walk in the room, they know: Here comes this huge thing again.”>

 

 

= = =

 

Interessantissimo! Grazie ancora!

Buona giornata.

Lidia

 

 

EegaBeeva

 

“La verità sulla natura è molto più bella di quella narrata dai poeti e gli animali sono la vera magia dell’esistenza” (Konrad Lorenz)

[EegaBeeva]

Citazione:But in the Cameroon red tarantulas that Marshall describes in a forthcoming paper

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Che segnalerai, vero, Matteo?

Grazie fin d'ora.

Buona giornata.

Lidia

 

EegaBeeva

 

“La verità sulla natura è molto più bella di quella narrata dai poeti e gli animali sono la vera magia dell’esistenza” (Konrad Lorenz)

[andrea.a]

Interessante, anche se sembra essere solo un piccolo assaggio di tutto quello che questo autore potrebbe raccontarci.

Sapete se esistono saggi o libri scritti da lui?

 

grazie, Andrea.

[MatteoG]

Sam Marshall ha scritto molte cose. E' arcinoto per il mitico "Tarantulas and Other Arachnids", libercolo davvero fatto bene con un'introduzione al mondo delle migali, succinto ma completo. Niente di profondissimo (non è certamente un trattato scientifico, più una guida di campo), però sicuramente ogni aspetto è affrontato con competenza e rigore (d'altronde lui è uno dei re delle American Tarantula Society) Una delle piccole bibbie per neofiti....

 

comunque, tanto per completare....

 

Marshall, S.D. 1989. "Nest Sites of the Micronesian Kingfisher on Guam (Halcyon cinnamomina cinnamomina)". Wilson Bulletin. 101: 472-477.

Marshall, S.D. & G.W. Uetz. 1990. "The Pedipalpal Brush of Ephebopus sp. (Araneae, Theraphosidae): Evidence of a New Site for Urticating Hairs". Bulletin of the British Arachnological Society. 8: 122-124.

Marshall, S.D. & G.W. Uetz. 1990. "Incorporation of Urticating Hairs into Silk: A Novel Defense Mechanism in Two Neotropical Tarantulas. (Araneae: Theraphosidae)". Journal of Arachnology. 18: 143-149.

Marshall, S.D. & G.W. Uetz. 1993. "The Growth and Maturation of a Giant Spider:Theraphosa Leblondi (Latreille 1804) (Araneae, Theraphosidae)". Revue Arachnologique. 10: 93-103.

Marshall, S.D. & J.L. Gittleman. 1994. "Clutch Size in Spiders: Is More Better?" Functional Ecology. 8: 118-124.

Marshall, S.D., E. M. Thoms, & G.W. Uetz. 1995. "Setal Entanglement: An Undescribed Method of Stridulation by a Neotropical Tarantula". Journal of Zoology (London). 235: 587-595.

Marshall, S.D. 1995. "Natural History, Activity Patterns, and Relocation Rates of a Burrowing Wolf Spider: Geolycosa Xera Archboldi McCrone (Araneae, Lycosidae)". Journal of Arachnology. 23: 65-70.

Marshall, S.D. 1995. "Mechanisms of the Formation of Territorial Aggregations of the Burrowing Wolf Spider Geolycosa Xera Archboldi McCrone (Araneae, Lycosidae)". Journal of Arachnology. 23: 145-150.

Marshall, S.D. 1996. "Evidence for Territorial Behaviour in a Burrowing Wolf Spider". Ethology. 102: 32-39.

Jacob, E.M., S.D. Marshall, & G.W. Uetz. 1996. "Estimating Fitness: A Comparison of Body Condition Indices". Oikos. 77: 61-67.

Hodge, M.A. & S.D. Marshall. 1996. "An Experimental Analysis of Intraguild Predation Among Three Genera of Web-Building Spiders". Journal of Arachnology. 24: 101-110.

Marshall, S.D. 1997. "The Ecological Determinants of Space Use by a Burrowing Wolf Spider in a Xeric Shrubland Ecosystem". Journal of Arid Environments. 37: 379-393.

Walker, S.E., S.D. Marshall, A.L. Rypstra, & D.H. Taylor. 1999. "The Effects of Feeding History on Locomotory Activity in Two Species of Wolf Spider". Animal Behaviour. 58: 515-520.

Marshall, S.D. & A.L. Rypstra. 1999. "Spider Competition in Structurally Simple Habitats". Symposium on Spiders in Agroecosystems, Journal of Arachnology. 27:343-350.

Rypstra, A.L., P.E. Carter, R.A. Balfour, & S.D. Marshall. 1999. "Architectural Modifications of Agricultural Habitats and Their Impact on the Spider Inhabitants". Symposium on Spiders in Agroecosystems, Journal of Arachnology. 27: 371-377.

Marshall, S. D., E. M. Jakob, & G. W. Uetz. 1999. "Re-estimating Fitness: Can Scaling Issues Confound Condition Indices?" Oikos. 87: 401-402.

Walker, S.E., S.D. Marshall, & A.L. Rypstra 1999. "The Effect of Feeding History on Retreat Construction in the Wolf Spider Hogna Helluo (Araneae, Lycosidae)". Journal of Arachnology. 27: 681-691.

Marshall, S.D. 1999. "Neighborhood Effects Within Territorial Aggregations of a Burrowing Wolf Spider". Canadian Journal of Zoology. 77: 1006-1012.

Marshall, S.D. & A.L. Rypstra. 1999. "Habitat Selection Determines the Colonization of Two Soybean Agroecosytems by Two Wolf Spiders (Araneae: Lycosidae)". Environmental Entomology. 28: 1052-1059.

Marshall, S.D., W.R. Hoeh & M.A. Deyrup. 2000. "Biogeography and Conservation Biology of Florida's Geolycosa Wolf Spiders: Threatened Spiders in Endangered Ecosystems". Journal of Insect Conservation. 4: 11-21. Power Point presentation (may take a few minutes to load)

West, R.C. & S.D. Marshall. 2000. "Description of Two New Species of Ephebopus Simon, 1892 (Araneae, Theraphosidae, Aviculariinae)". Arthopoda. 8: 6-14.

Marshall, S.D., S. E. Walker, & A.L. Rypstra. 2000. "A Test for Differential Colonization and Competitive Ability in Two Generalist Predators". Ecology. 81: 3341-3349.

Persons, M.H., S.E. Walker, A.L. Rypstra, & S.D. Marshall. 2001. "Wolf Spider Predator Avoidance Tactics and Survival in the Presence of Diet-Associated Predator Cues (Araneae: Lycosidae)". Animal Behaviour. 61: 43-51.

Marshall, S.D., D.M. Pavuk, & A.L. Rypstra. 2002. Phenology of two wolf spider species in a soybean agroecosystem. Journal of Arachnology. 30: 503-510.

Walker, S.E., A.L. Rypstra, and S.D. Marshall. 2003. The relationship between offspring size and performance in the wolf spider Hogna helluo (Araneae:Lycosidae). Evolutionary Ecology. 5: 19-28.

Balfour, R.A., C.B. Buddle, A.L. Rypstra, S. E. Walker, and S.D. Marshall. 2003. Ontogenetic shifts in competitive interactions and intraguild predation between two wolf spider species. Ecological Entomology. 28: 25-30.

Varrecchia, M., V. Gorley, and S.D. Marshall. In Press: The lack of an influence of group size in growth rate in the theraphosid spider Hysterocrates gigas (Araneae: Theraphosidae, Eumenophorinae). Journal of Arachnology.

 

Edited Volumes and Popular Publications

 

Marshall, S.D. 1992. The importance of being hairy. Natural History. 101: 40-47.

Marshall, S.D. 1994. Geolycosa escambiensis In: Rare and Endangered Biota of Florida: Vol. IV, Invertebrates. M. Deyrup & R. Franz, Eds. University Presses of Florida. Gainesville. pp. 233-235.

Marshall, S.D. 1996. Tarantulas and Other Arachnids. Barron's Educational Series, New York. 104 pp.

Marshall, S.D. 2001. Tarantulas and Other Arachnids, Second Edition. Barron’s Educational Series, New York. 111 pp.

Edwards, G.B. & S. D. Marshall. 2001. Florida’s Fabulous Spiders. World Wide Publications, Tampa, Florida. 65 pp.

 

Teo

 

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ARACNOFILIA.ORG -amministratore

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[andrea.a]

Grazie Teo!

Esauriente e preciso, come sempre!!!

 

Andrea.

[EegaBeeva]

Grazie anche da parte mia.

Lidia

 

EegaBeeva

 

“La verità sulla natura è molto più bella di quella narrata dai poeti e gli animali sono la vera magia dell’esistenza” (Konrad Lorenz)