Tree basal area and dead wood as surrogate indicators of saproxylic insect faunal integrity: a case study from the Australian lowland tropics

Grove, Simon

doi:10.1016/s1470-160x(01)00016-4

Cited by 67 publications

(51 citation statements)

References 55 publications

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“…In the cited studies, the 'local scale' refers to a broad range of sampled surfaces, from 0.01 ha to 2 ha. Interestingly, all positive and significant effects predictions of saproxylic beetle richness based on the local amount of deadwood were observed at a scales between 0.5 ha and 1 ha (Grove, 2002;Martikainen et al, 2000;Sippola et al, 2002). In contrast the effect was weak to non-existent when sampling at smaller (i.e.…”

Section: "Environmental" Indicatorsmentioning

confidence: 96%

“…There are contrasting results on the relevance of physical variables as predictors of saproxylic species richness. Positive correlations between the volume of deadwood and saproxylic beetle richness at the plot level have frequently been observed (Grove, 2002, Martikainen et al, McGeoch et al, 2007Similä et al, 2003;Sippola et al, 2002); however several authors found no relationships between the local amount of deadwood and the richness of saproxylic beetle assemblages (Franc et al, 2007;Økland, et al, 1996;Siitonen, 1994;Similä, et al, 2006;). In our study a portion of the variation in species richness was unexplained by our predictive models.…”

Section: "Environmental" Indicatorsmentioning

confidence: 97%

“…The selection of this particular indicator reflects its importance to the 20-25% of forest-dwelling species that are either deadwood dependant or rely on wood-roting fungi, i.e., saproxylic (Elton, 1966;Stokland and Meyeke, 2008). Several studies have shown a significant positive correlation between the amount of deadwood and species richness of saproxylic beetles (Grove, 2002;Jacobs et al, 2007;Martikainen et al, 2000;McGeoch et al, 2007;Økland et al, 1996;Similä et al, 2003;Sippola et al, 2002), wood-inhabiting fungi (Bader et al, 1995;Pentillä et al, 2004;Similä et al, 2006;Stokland et al, 2004), mammals or birds (Mac Nally et al, 2001). Nevertheless, the diversity of deadwood (type, dimension and decay stage) is also an important predictor of saproxylic beetle species richness, as it represents the diversity of possible microhabitats (Ranius and Jonsson, 2007;Siitonen, 2001;Similä et al, 2003).…”

Section: Introductionmentioning

confidence: 99%

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Species variables or environmental variables as indicators of forest biodiversity: a case study using saproxylic beetles in Maritime pine plantations

2009

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OATAO is an open access repository that collects the work of Toulouse researchers and makes it freely available over the web where possible. This is an author-deposited version published in : http://oatao. Abstract• To assess the sustainability of plantation forest management we compare two types of biodiversity indicators. We used the species richness of saproxylic beetles as a case study to test the "species" and "environmental" indicator approaches. We compared single species abundance or occurrence and deadwood volume or diversity as predictor variables.• Beetles were sampled with flight interception traps in 40 Maritime pine plantation stands. The volume and diversity of deadwood was estimated with line intersect and plot sampling in the same stands. Predictive models of species richness were built with simple linear or Partial Least Square regressions.• Deadwood variables appeared to be good predictors of saproxylic beetle richness at the standscale with at least 75% of variance explained. Deadwood diversity variables consistently provided better predictive models than volume variables. The best environmental indicator was the diversity of deadwood elements larger than 15 cm in diameter.• By contrast, the use of "species variables" appeared to be less relevant. To reach the quality of prediction obtained with "environmental variables", the abundance or occurrence of 6 to 7 speciessome of which are difficult to identify -had to be used to build the indicator.

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Section: "Environmental" Indicatorsmentioning

confidence: 96%

Section: "Environmental" Indicatorsmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

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Species variables or environmental variables as indicators of forest biodiversity: a case study using saproxylic beetles in Maritime pine plantations

2009

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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: 56%

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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“…count number of hollow oaks). For exemple Grove (2002) used tree basal area and dead wood volume, instead of using species as indicators. However, results from earlier studies are conflicting.…”

Section: Discussionmentioning

confidence: 99%

An indicator system for identification of sites of high conservation value for saproxylic oak (Quercus spp.) beetles in southern Sweden

Jansson

Bergman

Jonsell³

et al. 2008

J Insect Conserv

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Tree basal area and dead wood as surrogate indicators of saproxylic insect faunal integrity: a case study from the Australian lowland tropics

Cited by 67 publications

References 55 publications

Species variables or environmental variables as indicators of forest biodiversity: a case study using saproxylic beetles in Maritime pine plantations

Species variables or environmental variables as indicators of forest biodiversity: a case study using saproxylic beetles in Maritime pine plantations

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

An indicator system for identification of sites of high conservation value for saproxylic oak (Quercus spp.) beetles in southern Sweden

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