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Data From: Influence of cold temperature and exposure time on egg overwintering survival in the white-whiskered grasshopper (Orthoptera: Acrididae)
,Data are from a laboratory experiment conducted to examine the effects of cold temperatures on egg survival of Ageneotettix deorum, the white-whiskered grasshopper which is a common rangeland pest species in the Northern Great Plains region.,Abstract from published manuscript: The effect of cold temperatures and exposure time on egg survival and hatching success were examined in the white-whiskered grasshopper, Ageneotettix deorum. Temperature treatments ranged from 4°C to -35°C, with treatment times ranging from 48 to 240 hours. Both decreasing temperatures and exposure time negatively affected egg survival, with a temperature below -25°C being lethal. Similar lethal temperatures are known for several North American grasshopper species. The relatively shallow location of A. deorum egg pods would result in increased vulnerability of eggs to cold temperatures in the absence of snow.,Resources in this dataset:,
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Nest attendance, incubation constancy, and onset of incubation in dabbling ducks
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This dataset includes daily nest attendance (proportion of time females spent at the nest), incubation constancy (proportion of time females maintained their nests at nest-specific incubation temperatures), nest temperature variation, and the duration of individual incubation bouts for three species of dabbling ducks (mallard, gadwall, and cinnamon teal) nesting in Suisun Marsh, California during 2015-2019.
Experimental evaluation of predator exclosures on nest, chick, and adult survival data for the Northern Great Plains piping plover, 2014 - 2016
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This dataset presents four tabular data files that evaluate the effect of predator exclosures around piping plover (Charadrius melodus) nests affects plover nest, chick, within-season, and annual adult survival. During 2014-2016, this data was part of a designed experiment to examine nest (n = 418), chick (n = 453), and adult (n = 367) survival at alkaline wetlands of the Northern Great Plains. Alkaline wetlands were divided between treatment wetlands and control wetlands (no exclosures placed anywhere on wetland). Field crews aimed to place predator exclosures around half of all plover nests found resulting in three treatment types: uncaged nest on control wetland, uncaged nest on treatment wetland, and caged nest on treatment wetland. The nest survival dataset includes values used with the Shaffer logistic exposure model as well as the treatment of nest and wetland separately. The chick survival dataset includes a censored Cormack-Jolly-Seber encounter history based on when chicks were searched for and in addition to the experimental treatment, the region of the study area and the density of chicks at each wetland basin are included. Adult survival was examined over two time periods, during incubation (within season) and annually, resulting in two separate datasets, and took advantage of resightings of individuals outside the focal study area. The within season survival dataset includes a Barker model encounter history, region, experimental treatment, and a measure of habitat availability based on a climate index (standardized precipitation-evapotranspiration index). The annual adult survival dataset includes a Barker model encounter history and the time-varying experimental treatment.
Do severe storms influence the survival of piping plover (Charadrius melodus) nests and broods?
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Nest and brood survival data for piping plovers at Edwin B. Forsythe National Wildlife Refuge
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