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Graph Description of Source of Level of Detectability/ Time Dependent Corresponding Description of Priority number hypothesis information, certainty sensitivity needed for variable quantitative alternative/competing for IMRP if any (feasibility) measuring (indicator) management (or hypotheses a response research) objective WM #1 Platte bottomland Siebert, 1994 High (however Medium. Study 5-10 years Site-specific Helps to prioritize sites There are too many possible High grasslands producing the the most of multiple sites macro- suitable for acquisition, combinations of site greatest abundance and suitable will allow invertebrate maintainance, characteris6cs to allow for a diversity of macro- combinations multivariate production protection, or meaningful characterization of invertebrates consumed by are only analysis of and diversity improvement by the "desirable" conditions WC exhibit certain moderately conditions during March- Program for habitat characteristic combinations well supporting April complexes. of soils, hydrology, size understood as aquatic and and location; Crane of today) semi-aquatic Meadows and Rowe invertebrates. Sanctuary have some of best existin combinations WM #2 Water tables between +0.5 Siebert, 1994; High High 2-5 years Site-specific Intensively monitor 3-5 High and -0.5 feet of the ground Wesche et al., aquatic and study sites for multiple surface in March-April 1994; semi-aquatic years to assess support high productivity Craig Davis' invertebrate hydrology and and diversity of macro- papers of the production corresponding macro- invertebrates as potential early'90s; and diversity invertebrate production WC food sources in Nagel and during March- and diversity. bottomland rasslands. others A ril WM #3 A predominance of Nagel Moderate- Moderate-High 2-5 years Site-specific Intensively monitor 3-5 Wet meadows and their soils Med- organic-rich soils supports High aquatic study sites for multiple are too complex and variable to High the productivity and invertebrate years to assess soils allow this individual factor to be diversity of macro- production and corresponding effectively assessed. invertebrates as potential and diversity macrainvertebrate WC food sources in production and diversity. bottomland rasslands. WM #4 The likelihood that WC will Low-Medium Low, because of > 8 years? Wet meadow Monitor WC use of Contiguous area of wet meadow Low - identify and use wet limited # of WC use by WC habitat complexes in a habitat complex bears little Medium meadows within habitat sightings on within various or no relationship to its complexes increases as Platte River and habitat discovery and use by WC. the contiguous area of wet limited # of complexes meadow increases. habitat Use by cranes is too rare to test com lexes h othesis. WM #5 The likelihood that WC will Tech Medium Low, because of > 8 years? Wet meadow Monitor WC use of wet Moderate identify and use wet Committee's limited # of WC use by WC at meadows near and far meadows in any particular Oct 2004 draft sightings on various from river location decreases as their baseline Platte River and distances from distance from river roosts report limited # of wet Platte River increases. meadows WM #6 A high productivity and Walkinshaw, Low-medium, Difficult to detect > 10 years? Possible Other factors unrelated to Platte Low diversity of 1973; FWS, because data because so surrogate: River and/or macra macroinvertebrates in 1994; are scarce many variables Frequency invertebrates have a far greater areas used b whoo ing Johns aard, and so man influence and duration im act on whoo in crane