Why do male crab spiders drink nectar?

Pollard, Simon D.; Beck, M. W.; Dodson, Gary

doi:10.1016/0003-3472(95)90065-9

Cited by 64 publications

(53 citation statements)

References 12 publications

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“…However, several authors have reported incidences of nectar-feeding (Pollard et al 1995;Taylor and Foster 1996) and less restricted spider diets (Smith and Mommsen 1983). EFNs supply both carbohydrates and water (Pollard et al 1995) and frequently amino acids and lipids (Keeler 1980;Pemberton 1993). Nectar may help sustain spiders and prevent dehydration (Pollard et al 1995;Taylor and Foster 1996).…”

Section: Discussionmentioning

confidence: 99%

Jumping spiders (Salticidae) enhance the seed production of a plant with extrafloral nectaries

1999

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Many plants secrete nectar from extrafloral nectaries (EFNs), specialized structures that usually attract ants which can act as plant defenders. We examined the nectar-mediated interactions between Chamaecrista nictitans (Caesalpineaceae) and jumping spiders (Araneae, Salticidae) for 2 years in old fields in New Jersey, USA. Previous research suggests that spiders are entirely carnivorous, yet jumping spiders (Eris sp. and Metaphidippus sp.) on C. nictitans collected nectar in addition to feeding on herbivores, ants, bees, and other spiders. In a controlled-environment experiment, when given a choice between C. nictitans with or without active EFNs, foraging spiders spent 86% of their time on plants with nectar. C. nictitans with resident jumping spiders did set significantly more seed than plants with no spiders, indicating a beneficial effect from these predators. However, the presence of jumping spiders did not decrease numbers of Sennius cruentatus (Bruchidae), a specialist seed predator of C. nictitans. Jumping spiders may provide additional, unexpected defense to plants possessing EFNs. Plants with EFNs may therefore have beneficial interactions with other arthropod predators in addition to nectar-collecting ants.

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Section: Discussionmentioning

confidence: 99%

Jumping spiders (Salticidae) enhance the seed production of a plant with extrafloral nectaries

1999

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“…), which also dominate the ants' diet [6][7][8]. Although no other spiders are known to rely as heavily on herbivory as B. kiplingi, many spiders do supplement a predatory diet with nectar taken from the floral or extrafloral nectaries of plants (e.g., [9][10][11][12]). …”

Section: Introductionmentioning

confidence: 99%

Nectar Meals of a Mosquito-Specialist Spider

Kuja

Jackson

Sune

et al. 2012

Psyche: A Journal of Entomology

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Evarcha culicivora, an East African jumping spider, is known for feeding indirectly on vertebrate blood by actively choosing blood-carrying mosquitoes as prey. Using cold-anthrone tests to detect fructose, we demonstrate that E. culicivora also feeds on nectar. Field-collected individuals, found on the plant Lantana camara, tested positive for plant sugar (fructose). In the laboratory, E. culicivora tested positive for fructose after being kept with L. camara or one of another ten plant species (Aloe vera, Clerodendron magnifica, Hamelia patens, Lantana montevideo, Leonotis nepetaefolia, Parthenium hysterophorus, Ricinus communis, Senna didymobotrya, Striga asiatica, and Verbena trivernia). Our findings demonstrate that E. culicivora acquires fructose from its natural diet and can ingest fructose directly from plant nectaries. However, experiments in the laboratory also show that E. culicivora can obtain fructose indirectly by feeding on prey that have fed on fructose, implying a need to consider this possibility when field-collected spiders test positive for fructose. In laboratory tests, 53.5% of 1,215 small juveniles, but only 3.4% of 622 adult E. culicivora, left with plants for 24 hours, were positive for fructose. These findings, along with the field data, suggest that fructose is especially important for early-instar juveniles of E. culicivora.

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“…Além de formigas, outros insetos visitantes com menos destaque na literatura são comuns às glândulas nectaríferas externas em espécies de Convolvulaceae, tais como: vespas, abelhas, moscas e besouros (KEELER, 1975;KEELER, 1977;BECKMANN JR. & STUCKY, 1981;MARQUES et al, 2005;PAZ, 2011), e mais raramente, outros artrópodos, como aranhas e ácaros (POLLARD et al, 1995;TAYLOR & PFANNENSTIEL, 2008). Ademais, outros trabalhos com a mesma espécie (I. carnea), ou com representantes do gênero, também registraram diversidade de gêneros e famílias semelhantes (44,4%), quando comparado com os insetos visitantes do presente estudo.…”

Section: Discussionunclassified

<htm>Guilda de visitantes de nectários extraflorais de <i>Ipomoea carnea </i>subsp. <i>fistulosa</i> Convolvulaceae) em uma área de semiárido antropizado da Bahia, Brasil</htm>

Paz

2016

ABPar

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Why do male crab spiders drink nectar?

Cited by 64 publications

References 12 publications

Jumping spiders (Salticidae) enhance the seed production of a plant with extrafloral nectaries

Jumping spiders (Salticidae) enhance the seed production of a plant with extrafloral nectaries

Nectar Meals of a Mosquito-Specialist Spider

<htm>Guilda de visitantes de nectários extraflorais de <i>Ipomoea carnea </i>subsp. <i>fistulosa</i> Convolvulaceae) em uma área de semiárido antropizado da Bahia, Brasil</htm>

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