Arthropod Colonisation of Trees in Fragmented Landscapes Depends on Species Traits

Bucher, Roman; Herrmann, John D.; Schüepp, Christof; Herzog, Félix; Entling, Martin H.

doi:10.2174/1874213001003010111

Cited by 15 publications

(9 citation statements)

References 29 publications

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“…Heliophanus auratus, Agalenatea redii, Dictyna arundinacea) and epigeic species (Drassodes pubescens). Similar composition was found on cherry (Bucher et al, 2010) and apple trees (Šťastná and Psota, 2013) as well as on other fruit trees (Fišákova, 2013). The myrmecomorph salticid Synageles venator was the most common spider on the vine plants and its high occurrence was quite unusual.…”

Section: Sibianor Tantulus (Simon 1868)supporting

confidence: 68%

“…The myrmecomorph salticid Synageles venator was the most common spider on the vine plants and its high occurrence was quite unusual. In previous studies, this species was recorded as common from young cherry trees only (Bucher et al, 2010) but not from the old trees (Fišáková, 2013;Šťastná and Psota, 2013). It thus seems that the species is related to the bushes and small trees.…”

Section: Sibianor Tantulus (Simon 1868)mentioning

confidence: 77%

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Spiders of the Vine Plants in Southern Moravia

Havlová¹,

Hula²,

Niedobová³

2015

Acta Univ. Agric. Silvic. Mendelianae Brun.

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Araneofauna of vineyards is relatively known in Central Europe but we have a lack of knowledge about araneofauna which occur directly on the vine plants. Our investigation was focused on spiders which live on vine plants, especially on the vine plants trunks. We investigated spiders in six vineyards in southern Moravia (Šatov, Mikulov, Popice, Morkůvky, Nosislav and Blučina). Vineyards were under diff erent soil management, traps were placed on diff erent parts of particular locality (terraced and plain) and all localities were under integrated pest management. We employed two types of cardboard traps for spider collecting during whole vegetation season. Altogether, we collected 21 spider species which belong to seven families. The most important species was Marpissa nivoyi (Lucas, 1836), which is mentioned in the Red List as vulnerable (VU) and Sibianor tantulus (Simon, 1868) which had unknown distribution in the Czech Republic. The other very interesting result is that the most common species is myrmecomorph Synageles venator (Lucas, 1836), which is scarcely recorded in such huge numbers as we documented in our study.

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Section: Sibianor Tantulus (Simon 1868)supporting

confidence: 68%

Section: Sibianor Tantulus (Simon 1868)mentioning

confidence: 77%

Spiders of the Vine Plants in Southern Moravia

Havlová¹,

Hula²,

Niedobová³

2015

Acta Univ. Agric. Silvic. Mendelianae Brun.

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“…From former studies we know that N. umbratica is the most abundant spider species in such traps (Bucher et al, 2010). The trees were planted in rows with a 3-m gap between the trees, in open grassland.…”

Section: Field Methodsmentioning

confidence: 99%

“…This spider species uses these cardboard rolls as hiding places. From former studies we know that N. umbratica is the most abundant spider species in such traps (Bucher et al, 2010). The cardboard rolls remained in the field during the growing season in 2009.…”

Section: Field Methodsmentioning

confidence: 99%

“…The variation of the percentage of woody habitats and the levels of habitat isolation were statistically independent. Afterwards we divided woody habitats into forest and semi-open habitats, because spiders are often selective between the two (Bucher et al, 2010). Habitat amount and habitat isolation remained independent from each other after the division.…”

Section: Experimental Designmentioning

confidence: 99%

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Contrasting effects of habitat fragmentation, population density, and prey availability on body condition of two orb-weaving spiders

Bucher

Entling

2011

Ecological Entomology

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1. Habitat fragmentation is a major threat to biodiversity because it disrupts movement between habitat patches. In addition, arthropod fitness may be reduced in fragmented habitats, e.g. due to reduced prey availability.2. We studied the relationship of spider body condition with habitat fragmentation, population density, and prey availability. We expected that prey availability and population density of spiders would be affected by landscape composition and patch isolation. Body condition should be enhanced by high prey availability, but negatively affected by population density due to competition.3. We sampled spiders on 30 groups of cherry trees that varied independently in the level of isolation from other woody habitats and in the percentage of woody habitat within 500 m radius. As a measure of body condition, we used residuals of the relationship between individual body mass/opisthosoma width and prosoma width of the two most common orb-weaving spider species, Nuctenea umbratica Clerck and Araniella opisthographa Kulczynski.4. Body condition of A. opisthographa was positively correlated with the abundance of flies, which increased with the percentage of forest in the landscape. In contrast, body condition of N. umbratica was reduced at high population densities, presumably due to intraspecific competition. In addition, body condition and population density of A. opisthographa was lower at isolated sites.5. Our study suggests that effects of landscape fragmentation on body condition vary strongly between spider species, depending on the relative role of food limitation and intraspecific competition.

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Development and growth in synanthropic species: plasticity and constraints

Kralj‐Fišer

Čelik

Lokovšek

et al. 2014

Naturwissenschaften

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Urbanization poses serious extinction risks, yet some species thrive in urban environments. This may be due to a pronounced developmental plasticity in these taxa, since phenotypically, plastic organisms may better adjust to unpredictable urban food resources. We studied phenotypic plasticity in Nuctenea umbratica, a common European forest and urban vegetation spider. We subjected spiderlings to low (LF), medium (MF) and high (HF) food treatments and documented their growth and developmental trajectories into adulthood. Spiders from the three treatments had comparable numbers of instars and growth ratios, but differed in developmental periods. Longest developing LF spiders (♀ = 390, ♂ = 320 days) had the smallest adults, but MF (♀ = 300, ♂ = 240 days) and HF (♀ = 240, ♂ = 210 days) spiders reached comparable adult sizes through shorter development. While males and females had comparable instar numbers, females had longer development, higher growth ratios, adult sizes and mass; and while males adjusted their moulting to food availability, female moulting depended on specific mass, not food treatment. We discussed the patterns of Nuctenea sex-specific development and compared our results with published data on two other Holarctic urban colonizers (Larinioides sclopetarius, Zygiella x-notata) exhibiting high plasticity and fast generation turn-over. We conclude that despite relatively unconstrained developmental time in the laboratory enabling Nuctenea to achieve maximal mass and size-main female fitness proxies-their relatively fixed growth ratio and long generation turn-over may explain their lower success in urban environments.

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Arthropod Colonisation of Trees in Fragmented Landscapes Depends on Species Traits

Cited by 15 publications

References 29 publications

Spiders of the Vine Plants in Southern Moravia

Spiders of the Vine Plants in Southern Moravia

Contrasting effects of habitat fragmentation, population density, and prey availability on body condition of two orb-weaving spiders

Development and growth in synanthropic species: plasticity and constraints

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