The Effect of Host Density on the Success of Commensalistic Epoicocladius flavens (Chironomidae) in Utilizing Streamliving Ephemera danica (Ephemeroptera)

Svensson, Britt-Marie

doi:10.2307/3544292

Cited by 17 publications

(21 citation statements)

References 23 publications

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“…If this were the case, number of commensals per host would reflect simple density dependence. This mechanism was suggested by Svensson (1980) to account for infestation rates of commensal midges on mayfly hosts in Sweden.…”

Section: Spring Observationsmentioning

confidence: 93%

“…Addicott 1984). For example, Svensson (1980) noted lower densities of stalked ciliates (Petrichia) on the bodies of mayfly hosts when the commensal midge Epoicocladiusflavens was present than when it was absent, indicating that the host received a cleaning benefit from the feeding activity of the midge. N. serricornis might similarly benefit from the presence of Nanocladius sp.. No studies have examined the possible fitness consequences of any changes in these interactions.…”

Section: Spring Observationsmentioning

confidence: 96%

“…Steffan 1965, Bottorff and Knight 1987, Giberson et al 1996 and that commensals are reluctant to leave their host (e.g. Svensson 1980). In my study, eight winter movements on the same host were observed and movements were dominated by midges occurring singly on hosts.…”

Section: Spring Observationsmentioning

confidence: 97%

“…The relationships between chironomid midges and their hosts are diverse, ranging from phoresy (a commensalistic association where an organism uses its host for transportation)(e.g. Steffan 1965, Gotceitas and Mackay 1980, Svensson 1980, Bottorff and Knight 1987 to parasitism (Jacobsen 1993, Giberson et al 1996. In general, larval ectosymbiotic midges construct silken tubes on various parts ofthe host body and remain in contact with the host through pupation.…”

Section: Introductionmentioning

confidence: 99%

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Seasonal Position Patterns and Fate of a Commensal Chironomid on its Fishfly Host

Pennuto

1998

Journal of Freshwater Ecology

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Changes in attachment sites of a commensal chironomid, Nanocladius (Plecopteracoluthus) sp. (Diptera: Chironomidae), on the body of its host, Nigronia serricornis (Megaloptera: Corydalidae), were observed in laboratory streams over a 13-week winter period and a 6-week spring period to determine seasonal movement patterns and emergence success. All chironomid commensals were lost from their hosts by the end of the winter study and no emergence was observed. During winter, chironomids resided in the same tube location on hosts for approximately three weeks before changing positions or being lost from hosts. Vacated tubes remained attached to hosts for an average of 3.6 weeks. Eight re-position movements were documented on host bodies and six midges colonized new hosts in the stream. New colonizations occurred most frequently on previously colonized hosts. During spring observations, commensal midges migrated from the abdomen and ventral thorax to the lateral thorax prior to pupation. Emergence occurred between 6 June and 2 July in the laboratory streams. Emergence success was strongly influenced by commensal attachment site when more than one commensal resided on a host, but not when midges occurred singly. Overall, midges exhibited about 4 1 % emergence success. Unsuccessful emergence was attributed to re-attachment failure following a host molt, host death, or unknown causes. These data suggest that commensal midges have high rates of movement after attaching to a host and attachment sites may determine, in part, emergence success.

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Section: Spring Observationsmentioning

confidence: 93%

Section: Spring Observationsmentioning

confidence: 96%

Section: Spring Observationsmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

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Seasonal Position Patterns and Fate of a Commensal Chironomid on its Fishfly Host

Pennuto

1998

Journal of Freshwater Ecology

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“…For example, Svensson (1980) noted lower densities of ciliates on the bodies of a mayfly when the Epoicocladius flavens (Mallock) larvae were present, indicating that the larvae probably clean the host body. Another example is provided by Condreanu (1939).…”

Section: Methodological Constraintsmentioning

confidence: 99%

Records of chironomidae larvae living on other aquatic animals in Brazil

et al. 2004

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In this study, we report forty-nine cases of Chironomidae larvae living on other animals in Brazilian aquatic ecosystems, including a wide range of hosts, such as hydrozoans, snails, insects and fish. We also discuss some empirical difficulties to establish the ecological interactions between chironomids and their hosts. Key words: Chironomidae, aquatic insects, mollusks, fish, ecological interaction, hosts ResumoNeste estudo nós reportamos 49 ocorrências de larvas de Chironomidae vivendo sobre o corpo de outros organismos aquáticos, tais como hidrozoários, moluscos, insetos e peixes, em ambientes aquáticos brasileiros. Nós também discutimos algumas dificuldades práticas para se estabelecer o tipo de interação ecológica entre Chironomidae e seus hospedeiros. Palavras-chave: Chironomidae, insetos aquáticos, moluscos, interações ecológicas, hospedeirosBiota Neotropica v4 (n2) -http://www.biotaneotropica.org.br/v4n2/pt/abstract?short-communication+bn03404022004

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Descriptions of the larvae of four nearctic species ofEpoicocladius (Diptera: Chironomidae) with a redescription ofEpoicocladius ephemerae (Kieffer)

Jacobsen

1992

Netherlands Journal of Aquatic Ecology

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The larvae of four species of Epoicocladius from eastern North America are described along with a redescription of the European species, Epoicocladius ephemerae (Kieffer). A key to known 4th instar Nearctic and western Palaearctic Epoicocladius larvae is presented. Previous species descriptions and records of Nearctic Epoicocladius spp. are discussed in reference to the larvae described here. Larvae of Epoicocladius ephemerae (Kieff.), a species described from Europe which is currently synonymized with the Nearctic E. flavens, have yet to be collected in North America. This suggests that the synonymy is invalid and E. ephemerae should be considered a legitimate species. A likely candidate to be the larva of Epoicocladius flavens (Malloch) is suggested. However, until reared adults are obtained, the larva of E. flavens remains unknown.

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The Effect of Host Density on the Success of Commensalistic Epoicocladius flavens (Chironomidae) in Utilizing Streamliving Ephemera danica (Ephemeroptera)

Cited by 17 publications

References 23 publications

Seasonal Position Patterns and Fate of a Commensal Chironomid on its Fishfly Host

Seasonal Position Patterns and Fate of a Commensal Chironomid on its Fishfly Host

Records of chironomidae larvae living on other aquatic animals in Brazil

Descriptions of the larvae of four nearctic species ofEpoicocladius (Diptera: Chironomidae) with a redescription ofEpoicocladius ephemerae (Kieffer)

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