Identification of conservation priorities for and threats to Palouse grassland and canyon grassland remnants in Idaho, Washington, and Oregon /

Weddell, Bertie Josephson; Lichthardt, J.

doi:10.5962/bhl.title.63475

Cited by 7 publications

(11 citation statements)

References 4 publications

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“…The Idaho Conservation Data Center and the Washington State Natural Heritage Program emphasise size, connectivity, integrity and threats when ranking conservation priorities (Lichthardt and Moseley, 1997;Weddell and Lichthardt, 1998;R. Conservation planning on the Palouse has been limited by knowledge of the existing remnants and their biological qualities.…”

Section: Discussionmentioning

confidence: 99%

“…Conservation planning on the Palouse has been limited by knowledge of the existing remnants and their biological qualities. The Idaho Conservation Data Center and the Washington State Natural Heritage Program emphasise size, connectivity, integrity and threats when ranking conservation priorities (Lichthardt and Moseley, 1997;Weddell and Lichthardt, 1998;R. Crawford, pers.…”

Section: Discussionmentioning

confidence: 99%

“…While these criteria are important factors in conservation decision-making, they may not be sufficient to conserve the existing variation among Palouse prairie remnants. For example, as the largest remnants tend to occur on relatively thin and rocky soils (Weddell and Lichthardt, 1998;Looney, 2008), these criteria could inadvertently de-emphasise conservation action on smaller remnants found on deeper, loessal soils, and further threaten their associated biological communities.…”

Section: Discussionmentioning

confidence: 99%

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When the prairie varies: the importance of site characteristics for strategising insect conservation

Looney

Caldwell

Eigenbrode

2009

Insect Conserv Diversity

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Abstract. 1. The bunchgrass prairies of the Palouse region in eastern Washington state and adjacent Idaho have been mostly converted to agriculture in the past century. Prairie habitat currently exists only on small remnants scattered across the landscape. 2. The invertebrate fauna of these habitat remnants is poorly known, both in terms of species diversity and community composition. 3. Baited pitfall traps were used to sample carrion‐attracted beetles during June and July of 2003 from high‐quality prairie remnants of varying size and soil characteristics. 4. Twenty‐three beetle species in five families were found. Species richness and Shannon‐Wiener diversity were not significantly correlated with habitat area or perimeter–area ratio. 5. Beetle abundance and community structure were strongly correlated with soil characteristics. Deeper, loessal soils had greater overall beetle abundance than shallower, rocky soils, although some species were more frequently captured in shallower, rocky soil sites. 6. Conservation plans emphasising only remnant size and condition do not sufficiently capture variability in insect communities across Palouse prairie remnants.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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When the prairie varies: the importance of site characteristics for strategising insect conservation

Looney

Caldwell

Eigenbrode

2009

Insect Conserv Diversity

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“…Irrespective of the actual amount lost, remnant prairie, hereafter referred to as “remnants,” occurs as isolated and relatively small patches (0.25 hectares to 20 hectares is most typical) spread throughout the agricultural landscape (Looney and Eigenbrode 2012). Although conversion of grasslands to new farms has largely ceased, these remnants may face new threats from expanding nonagricultural development, ranging from exurban housing (Nielsen-Pincus et al 2010) to wind-power turbines, continuous threats from invasive weeds (Lichthardt and Moseley 1997; Weddell and Lichthardt 1998), and more generally, the biological and social challenges typical of fragmented ecosystems (Donovan et al 2009). …”

Section: Introductionmentioning

confidence: 99%

“…Despite their small size and isolation, Palouse prairie remnants support a diverse native flora of over 350 plant species (Lichthardt and Moseley 1997; Hanson et al 2008), some of which are listed as globally imperiled or federally threatened (Lichthardt and Moseley 1997; Weddell and Lichthardt 1998). Though limited, studies indicate that rich invertebrate communities also persist in this resilient ecosystem (Hatten et al 2006; Looney et al 2009; Pocewicz et al 2009; Sánchez de-León and Johnson-Maynard 2009; Looney and Eigenbrode 2011).…”

Section: Introductionmentioning

confidence: 99%

Bumble Bee Fauna of Palouse Prairie: Survey of Native Bee Pollinators in a Fragmented Ecosystem

Hatten¹,

Looney

Strange

et al. 2013

Journal of Insect Science

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Bumble bees, Bombus Latreille (Hymenoptera: Apidae:), are dominant pollinators in the northern hemisphere, providing important pollination services for commercial crops and innumerable wild plants. Nationwide declines in several bumble bee species and habitat losses in multiple ecosystems have raised concerns about conservation of this important group. In many regions, such as the Palouse Prairie, relatively little is known about bumble bee communities, despite their critical ecosystem functions. Pitfall trap surveys for ground beetles in Palouse prairie remnants conducted in 2002–2003 contained considerable by-catch of bumble bees. The effects of landscape context, remnant features, year, and season on bumble bee community composition were examined. Additionally, bees captured in 2002–2003 were compared with historic records for the region to assess changes in the presence of individual species. Ten species of bumble bee were captured, representing the majority of the species historically known from the region. Few detectable differences in bumble bee abundances were found among remnants. Community composition differed appreciably, however, based on season, landscape context, and elevation, resulting in different bee assemblages between western, low-lying remnants and eastern, higherelevation remnants. The results suggest that conservation of the still species-rich bumble bee fauna should take into account variability among prairie remnants, and further work is required to adequately explain bumble bee habitat associations on the Palouse.

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Landscape-level effects on cynipid component communities of “orphaned” native shrubs

Looney

Eigenbrode

2010

J Insect Conserv

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Identification of conservation priorities for and threats to Palouse grassland and canyon grassland remnants in Idaho, Washington, and Oregon /

Cited by 7 publications

References 4 publications

When the prairie varies: the importance of site characteristics for strategising insect conservation

When the prairie varies: the importance of site characteristics for strategising insect conservation

Bumble Bee Fauna of Palouse Prairie: Survey of Native Bee Pollinators in a Fragmented Ecosystem

Landscape-level effects on cynipid component communities of “orphaned” native shrubs

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