Variable response of different functional groups of saproxylic beetles to substrate manipulation and forest management: Implications for conservation strategies

Johansson, Therese; Hjältén, Joakim; Gibb, Heloise; Hilszczański, Jacek; Stenlid, Jan; Ball, John P.; Alinvi, Ola; Danell, Kjell

doi:10.1016/j.foreco.2007.01.062

Cited by 63 publications

(61 citation statements)

References 55 publications

(62 reference statements)

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“…In our analysis, dead wood of the first class decay represented by large branches on the ground or standing dead trees and stumps belonging to the third class decay affect positively the richness and abundance of xylophagous beetles that attack fresh dead wood, while standing dead trees belonging to the fourth class decay and dead trees on the ground of second class decay affect hole nesting-birds. In accordance with our results, several studies have shown that unremoved dead wood on the ground (e.g., Johansson et al 2007) or artificially created dead wood microhabitats (e.g., Lindhe and Lindelöw 2004), are used for beetle development and consequently important for hole-nesting bird foraging activity, because the number of trees required for foraging is considerably larger than the number of nest trees (Drapeau et al 2009). …”

Section: Discussionsupporting

confidence: 91%

Bird and beetle assemblages in relict beech forests of central Italy: a multi-taxa approach to assess the importance of dead wood in biodiversity conservation

Zan¹,

Battisti²,

Carpaneto³

2014

Community Ecology

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Abstract:The awareness of the importance of deadwood in forest ecosystems has increased in recent decades. Today, dead wood is recognized as a key factor affecting diversity of forest communities. Hole-nesting birds and saproxylic organisms represent an active part of the animal community through the recycle of decaying wood into the forest soils. Three relict beech forests of central Italy were surveyed for both saproxylic beetles and hole-nesting birds, using two different types of interception traps for the former group and point count method for the latter. The variables of dead wood quality were recorded from ten plots, particularly the decaying class and typology of all the wood debris with a diameter ≥ 5 cm. In order to correlate richness and abundance of beetles and birds in a symmetric way, we used co-inertia analysis (CoIA). To correlate in a predictive way the dead wood attributes (dead wood typology and class decay) with birds and beetles assemblages we used partial redundancy analysis (RDA). Our results showed a significant relationship between saproxylic beetle and hole-nesting bird communities. Three dead wood variables (the volume of standing dead trees, stumps and large branches on the ground) appeared to be good predictors of saproxylic beetle richness while the volume of standing dead tree and of dead trees on the ground were the same for hole-nesting birds. These results suggest specific recommendations useful for forest management and planning. for plants.

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Section: Discussionsupporting

confidence: 91%

Bird and beetle assemblages in relict beech forests of central Italy: a multi-taxa approach to assess the importance of dead wood in biodiversity conservation

Zan¹,

Battisti²,

Carpaneto³

2014

Community Ecology

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“…In any event, the proportions noted in the present study are not atypical. Fungus-feeders were the most species-rich functional group in a Swedish study of early-successional spruce logs (Johansson et al 2007), while Langor et al (2008) noted that studies of the beetle fauna of aspen wood in both Sweden and Canada had found that species of predators and fungusfeeders numerically dominated the assemblages.…”

Section: Trophic Structurementioning

confidence: 99%

A decade of change in the saproxylic beetle fauna of eucalypt logs in the Warra long-term log-decay experiment, Tasmania. 1. Description of the fauna and seasonality patterns

Grove

Forster

2011

Biodivers Conserv

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The first decade of sequential and cyclical sampling of saproxylic beetles by means of eclector traps on 12 freshly-felled Eucalyptus obliqua logs at Warra, Tasmania has allowed documentation of a taxonomically and ecologically diverse fauna present in such logs in their early decompositional state. About half of all species are apparently undescribed-a much higher proportion than in most temperate regions. The distribution of individuals among species is typically skewed, with most species being rare and few being common. Neither obligately nor facultatively saproxylic beetles dominate the fauna, but predators predominate over other larval feeding guilds, and-in accordance with ecological theory for early successional habitats-winged species predominate over functionally flightless species. There is some suggestion that trophic structure changed over the period of the study, with the proportion of functionally flightless species increasing. The fauna shows strong seasonality. While the summer months represent the peak of occurrence for most species (in keeping with the cool-temperate climate), every month has its own particular complement of species, such that a strong seasonal cycle in assemblage composition is apparent throughout the year. The timings of emergence peaks vary among the years represented in this study by up to 2 months, with the year of latest emergence corresponding to that with the lowest mean annual maximum temperature; no signature of climate change is evident in the data-set.

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“…Our study, however, revealed lower numbers of beetles per cubic meter of wood in the monodominant plantation and the secondary forest than in mature forest. In other tropical forests, saproxylic beetles responded to the characteristics of the forest structure [30,31]. Here, we found that bess beetles' abundance did not respond to the higher availability of wood in the natural regeneration, both as CWD and as standing snags.…”

Section: Speciesmentioning

confidence: 57%

An Evaluation of Bess Beetles (Passalidae) and Their Resource Base in a Restored Andean Forest

Kattan

Murcia²,

Galindo‐Cardona

2010

Tropical Conservation Science

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Degraded lands in the Colombian Andes have been restored by means of monospecific tree plantations of native and exotic species, and by abandoning lands to natural regeneration. Both methods rapidly produce a vegetation cover that helps to stabilize soils, but the value of resulting ecosystems for wildlife needs to be evaluated. We assessed the effects of these two restoration methods on the diversity and abundance of bess beetles (Passalidae), which are important deadwood recyclers. We quantified coarse woody debris (logs and branches >10 cm diameter) and associated passalid beetle fauna in 40-year-old Andean alder (Alnus acuminata) plantations, adjacent natural regeneration and old-forest remnants, at 2430 m of elevation in the Central Andes. The three forest types contained the same number of logs per unit area, but wood volume was lower in alder stands than in natural forest types. Old-forest remnants contained a higher number of occupied logs and individual beetles per transect and per unit wood volume than the two other habitats. We found six species of beetle, three of which were found in the three habitats and the other three in one habitat each. Forest remnants and natural regeneration had four species each, whereas alder plantations had three species. Although beetle abundance was lower in alder stands, in the small-scale mosaic found at this site alder plantations behaved similarly to secondary forest and merged as part of the local habitat heterogeneity. Whether these results apply to larger and more isolated plantations remains to be established.Keywords: alder, Alnus acuminata, Andes, Colombia, habitat restoration, xylophagous beetles. ResumenLas tierras degradadas en los Andes colombianos se han restaurado por medio de plantaciones monoespecíficas de árboles nativos y exóticos y por medio de regeneración natural. Ambos métodos producen rápidamente una cobertura boscosa que ayuda a estabilizar los suelos, pero el valor de estos ecosistemas para la vida silvestre debe ser evaluado. En este trabajo evaluamos los efectos de estos dos métodos de restauración sobre la diversidad y abundancia de escarabajos Passalidae, los cuales son importantes recicladores de madera muerta. Cuantificamos la madera caída (troncos y ramas de >10 cm de diámetro) y la fauna asociada de pasálidos en plantaciones de aliso (Alder acuminata) de 40 años de edad, bosques de regeneración natural adyacentes de la misma edad y remanentes de bosque maduro, a 2430 m de elevación en la cordillera Central. Los tres tipos de bosque tuvieron el mismo número de troncos por unidad de área, pero el volumen de madera fue más bajo en los alisales que en los bosques naturales. Los bosques maduros tuvieron un mayor número de troncos ocupados y de escarabajos por transecto y por unidad de volumen de madera que los otros dos hábitats. Encontramos seis especies de escarabajos, tres de las cuales se encontraron en los tres hábitats y las otras tres en un hábitat cada una. Tanto en los remanentes de bosque como en la regeneración natural enc...

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Variable response of different functional groups of saproxylic beetles to substrate manipulation and forest management: Implications for conservation strategies

Cited by 63 publications

References 55 publications

Bird and beetle assemblages in relict beech forests of central Italy: a multi-taxa approach to assess the importance of dead wood in biodiversity conservation

Bird and beetle assemblages in relict beech forests of central Italy: a multi-taxa approach to assess the importance of dead wood in biodiversity conservation

A decade of change in the saproxylic beetle fauna of eucalypt logs in the Warra long-term log-decay experiment, Tasmania. 1. Description of the fauna and seasonality patterns

An Evaluation of Bess Beetles (Passalidae) and Their Resource Base in a Restored Andean Forest

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