Forests are increasingly affected by natural disturbances. Subsequent salvage logging, a widespre... more Forests are increasingly affected by natural disturbances. Subsequent salvage logging, a widespread management practice conducted predominantly to recover economic capital, produces further disturbance and impacts biodiversity worldwide. Hence, naturally disturbed forests are among the most threatened habitats in the world, with consequences for their associated biodiversity. However, there are no evidence-based benchmarks for the proportion of area of naturally disturbed forests to be excluded from salvage logging to conserve biodiversity. We apply a mixed rarefaction/extrapolation approach to a global multi-taxa dataset from disturbed forests, including birds, plants, insects and fungi, to close this gap. We find that 75 ± 7% (mean ± SD) of a naturally disturbed area of a forest needs to be left unlogged to maintain 90% richness of its unique species, whereas retaining 50% of a naturally disturbed forest unlogged maintains 73 ± 12% of its unique species richness. These values do n...
This study describes the seasonal abundance, reproductive phenology and site fidelity of the Blue... more This study describes the seasonal abundance, reproductive phenology and site fidelity of the Blue Mockingbird (Melanotis caerulescens), an endemic species of Mexico noted for its singing capabilities. This species was sampled using mistnets for 2 consecutive years at 3 sites of riparian vegetation in the Ayuquila River, Jalisco. Habitat characterization was carried out through sampling strata of trees, shrubs, and herbaceous ground cover. We used Generalized Linear Models to analyze the differences in coverage strata between the sites, and to identify the effect of site and month on the abundance of the species. The presence of a brood patch and/or cloaca protuberance characterized adults of respective sexes during the breeding season (April through August). Blue Mockingbird abundance was positively related to sites with greater shrub cover and the site fidelity analysis (individuals' presence or absence) showed that at least 3 breeding pairs maintained their territories in the...
Forests are increasingly affected by natural disturbances. Subsequent salvage logging, a widespre... more Forests are increasingly affected by natural disturbances. Subsequent salvage logging, a widespread management practice conducted predominantly to recover economic capital, produces further disturbance and impacts biodiversity worldwide. Hence, naturally disturbed forests are among the most threatened habitats in the world, with consequences for their associated biodiversity. However, there are no evidence-based benchmarks for the proportion of area of naturally disturbed forests to be excluded from salvage logging to conserve biodiversity. We apply a mixed rarefaction/extrapolation approach to a global multi-taxa dataset from disturbed forests, including birds, plants, insects and fungi, to close this gap. We find that 75 ± 7% (mean ± SD) of a naturally disturbed area of a forest needs to be left unlogged to maintain 90% richness of its unique species, whereas retaining 50% of a naturally disturbed forest unlogged maintains 73 ± 12% of its unique species richness. These values do n...
This study describes the seasonal abundance, reproductive phenology and site fidelity of the Blue... more This study describes the seasonal abundance, reproductive phenology and site fidelity of the Blue Mockingbird (Melanotis caerulescens), an endemic species of Mexico noted for its singing capabilities. This species was sampled using mistnets for 2 consecutive years at 3 sites of riparian vegetation in the Ayuquila River, Jalisco. Habitat characterization was carried out through sampling strata of trees, shrubs, and herbaceous ground cover. We used Generalized Linear Models to analyze the differences in coverage strata between the sites, and to identify the effect of site and month on the abundance of the species. The presence of a brood patch and/or cloaca protuberance characterized adults of respective sexes during the breeding season (April through August). Blue Mockingbird abundance was positively related to sites with greater shrub cover and the site fidelity analysis (individuals' presence or absence) showed that at least 3 breeding pairs maintained their territories in the...
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