2004
DOI: 10.1017/s0952836903004540
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Silk feeding as an alternative foraging tactic in a kleptoparasitic spider under seasonally changing environments

Abstract: Spiders of the genus Argyrodes are kleptoparasites that steal prey from other web spiders. Recent studies have shown that in addition to stealing prey, they occasionally eat the silk of the host spider webs. How Argyrodes alters the two foraging tactics in the field is still unknown. The foraging behaviour of Argyrodes flavescens was observed in the south-western part of Japan where prey availability changes greatly with season. Silk-eating behaviour was commonly observed when insect prey availability on host … Show more

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Cited by 17 publications
(11 citation statements)
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“…Another alternative is silk consumption, since it contains protein and other physiologically important compounds for nutrition (e.g. Tillinghast & Townley 987;Miyashita et al 2004). The progressive disappearance of the silk web after 26 days of life, could indeed indicate its consumption by the spiderlings.…”
Section: Discussionmentioning
confidence: 99%
“…Another alternative is silk consumption, since it contains protein and other physiologically important compounds for nutrition (e.g. Tillinghast & Townley 987;Miyashita et al 2004). The progressive disappearance of the silk web after 26 days of life, could indeed indicate its consumption by the spiderlings.…”
Section: Discussionmentioning
confidence: 99%
“…Some species, for example, of the genus Argyrodes, can perform the three kinds of kleptoparasitism pointed out by Giraldeau and Caraco (2000): they can feed with the host spider (Robinson & Robinson, 1973), or remove surreptitiously the preys from the host web (Vollrath, 1979;Whitehouse, 1986;Cangialosi, 1990;, or even use aggressive behavior in order to take away the prey from the host (Cangialosi, 1997). Furthermore, argyrodinae kleptoparasites can eat silk from the host web (Higgins & Buskirk, 1998;Tso & Severinghaus, 1998;Miyashita, Maezono & Shimazaki, 2004), catch rejected or undetected preys (Rypstra, 1981;Grostal & Walter, 1997) and even prey onto the host spider (Whitehouse, 1987;Cangialosi, 1997).…”
Section: Kleptoparasitism In Spidersmentioning
confidence: 99%
“…Além de mais numerosos, os cleptoparasitas desta subfamília apresentam as três formas de cleptoparasitismo apontadas por Giraldeau e Caraco (2000): são capazes de furtar presas já capturadas (Vollrath, 1979a;Whitehouse, 1986;Cangialosi, 1990;, roubar a presa espantando a aranha hospedeira de perto dela (Cangialosi, 1997), ou ainda se alimentar da mesma presa que o hospedeiro ('feed with host') (Robinson e Robinson, 1973). Além de subtrair presas capturadas e imobilizadas ou compartilhá-las com as aranhas hospedeiras, são diversas as possibilidades de uma aranha da subfamília Argyrodinae obter recursos alimentares na teia que invade: ingestão de seda (Higgins e Buskirk, 1998;Tso e Severinghaus, 1998;Miyashita et al, 2004), captura de presas rejeitadas ou não percebidas pela aranha hospedeira (Rypstra, 1981;Grostal e Walter, 1997), e a predação da própria aranha hospedeira (Whitehouse, 1987;Cangialosi, 1997).…”
Section: Cleptoparasitismo Em Aranhasunclassified
“…Rypstra (1981) demonstrou relação negativa entre a atividade de cleptoparasitas na teia e a taxa de captura de presas em N. clavipes, o que obriga a hospedeira a mudar o sítio de construção de teia mais frequentemente. Assim, ainda que não consideremos o consumo e remoção de trechos da teia hospedeira (Tso e Severinghaus, 1998;Miyashita et al, 2004) e nem os eventos de predação da hospedeira ou de seus filhotes (Cangialosi, 1997;Whitehouse, 1986), já podemos falar em cleptoparasitismo. Coyle et al (1991) afirmam que a interrupção da alimentação e a realização movimentos bruscos por parte do hospedeiro como consequência da atividade cleptoparasita já são suficientes para demonstrar que a interação é de cleptoparasitismo, e não de comensalismo.…”
Section: Consideraçõesunclassified
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