Defining conservation priorities for plant taxa in southeastern New Brunswick, Canada using herbarium records

MacDougall, Andrew S.; Loo, Jude A.; Clayden, Stephen R.; Goltz, Jim; Hinds, Henry

doi:10.1016/s0006-3207(98)00031-7

Cited by 54 publications

(44 citation statements)

References 26 publications

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“…Uses of herbarium collections for investigations other than climate change include documentation of shifts in plant biodiversity with increasing urbanization ( Dolan et al, 2011 ), population extinction of environmentally sensitive plants ( Lienert et al, 2002 ), conservation priorities for taxa in endangered habitats ( MacDougall et al, 1998 ), and human-induced reductions in individual plant size (dwarfi sm ; Law and Salick, 2005 ). Herbarium specimens have also been used to track the movement of invasive species across a region, as in the cases of the ornamental Callery pear tree ( Pyrus calleryana Decne.)…”

Section: Vouchers Deposited Over Time Form a Valuable Database That Cmentioning

confidence: 99%

Range dynamics and invasive tendencies in Typha latifolia and Typha angustifolia in eastern North America derived from herbarium and pollen records

Shih

Finkelstein

2008

Wetlands

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Section: Vouchers Deposited Over Time Form a Valuable Database That Cmentioning

confidence: 99%

Range dynamics and invasive tendencies in Typha latifolia and Typha angustifolia in eastern North America derived from herbarium and pollen records

Shih

Finkelstein

2008

Wetlands

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“…e data provided by herbarium (the aforementioned institutions), in digital or other formats, are crucial because, together with environmental data, they can help in the delineation of range and species descriptions (MacDougall et al 1998).…”

Section: Discussionmentioning

confidence: 99%

Improving collection efforts to avoid loss of biodiversity: lessons from comprehensive sampling of lycophytes and ferns in the subtropical Atlantic Forest

2016

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Estimating species richness with herbarium data and new collections allows us to understand the distribution of diversity. We investigated the accuracy of lycophyte and fern sampling along a vegetation gradient in the subtropical Atlantic Forest in southern Brazil. We compiled lycophyte and fern collection metadata and estimated species richness and assessed sampling accuracy for sixty 50 x 50 km units using ACE, Chao 1, Chao 2, Jackknife 1 and Jackknife 2 estimators. We compiled data for 12,779 fern specimens of 441 species, 67 of which were sampled in only one unit (singletons) and 35 in two units (duplicates). Of the 60 units examined, only 11 had observed values that were above 70% of their estimated values, and 14 had observed levels between 65-70% of the estimated values, meaning that 35 units had a sampling accuracy of less than 65%. In spite of the long history of lycophyte and fern collecting in the study area, there remain units with a lower than expected sampling accuracy for a subtropical forest. is nding indicates that a sizeable collection e ort is needed in order to discover the actual distribution of species before the e ects of fragmentation and deforestation become permanent.

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“…Previous studies have used data from herbarium specimens to detect rarity (MacDougall et al 1998) and decline (Burgman et al 1995;Hedenäs et al 2002;Case et al 2007), but the methods employed in these studies would not be appropriate or would be too difficult to scale-up to examine a database as large as entire plant families (however, see Ungricht et al 2005). Certain limitations to using herbarium records for conservation assessments do exist (see Golding 2004).…”

Section: Discussionmentioning

confidence: 99%

Achieving Target 2 of the Global Strategy for Plant Conservation: building a preliminary assessment of vascular plant species using data from herbarium specimens

2008

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The Global Strategy for Plant Conservation calls for a preliminary assessment of the conservation status of all known plant species by the year 2010. To date insufficient progress has been made on meeting this target. New efforts to develop a preliminary list beyond using the full IUCN criteria in plant assessments are needed. Here we present an algorithm that provides a preliminary assessment of the conservation status of plant species using data from herbarium specimens. We use Hawaiian specimen data from the United States National Herbarium to calibrate the parameters of the algorithm and then use specimen data from the Arecaceae, Commelinaceae, Gesneriaceae and Heliconiaceae as examples of the application of the algorithm. The algorithm was calibrated to insure 95% accuracy in placing the Hawaiian plant species into previously and independently determined threatened categories. Our results indicate that 28% of the Hawaiian taxa, 27% of the species of Arecaceae, 45% of the species of Commelinaceae, 32% of the species of Gesneriaceae, and 35% of the species of Heliconiaceae are Not Threatened and will not need any further evaluation for the preliminary assessment. Species identified here as Potentially Extinct and Potentially Threatened can be further assessed by additional herbarium material and/or conservation specialists for final evaluation using other assessment strategies (e.g., regional and national lists, taxonomic expert assessment, etc.).

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Defining conservation priorities for plant taxa in southeastern New Brunswick, Canada using herbarium records

Cited by 54 publications

References 26 publications

Range dynamics and invasive tendencies in Typha latifolia and Typha angustifolia in eastern North America derived from herbarium and pollen records

Range dynamics and invasive tendencies in Typha latifolia and Typha angustifolia in eastern North America derived from herbarium and pollen records

Improving collection efforts to avoid loss of biodiversity: lessons from comprehensive sampling of lycophytes and ferns in the subtropical Atlantic Forest

Achieving Target 2 of the Global Strategy for Plant Conservation: building a preliminary assessment of vascular plant species using data from herbarium specimens

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