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- W3101447894 abstract "Abstract Herbivores consider the variation of forage qualities (nutritional content and digestibility) as well as quantities (biomass) when foraging. Such selection patterns may change based on the scale of foraging, particularly in the case of ungulates that forage at many scales. To test selection for quality and quantity in free‐ranging herbivores across scales, however, we must first develop landscape‐wide quantitative estimates of both forage quantity and quality. Stoichiometric distribution models (StDMs) bring opportunity to address this because they predict the elemental measures and stoichiometry of resources at landscape extents. Here, we use StDMs to predict elemental measures of understory white birch quality (% nitrogen) and quantity (g carbon/m 2 ) across two boreal landscapes. We analyzed global positioning system (GPS) collared moose ( n = 14) selection for forage quantity and quality at the landscape, home range, and patch extents using both individual and pooled resource selection analyses. We predicted that as the scale of resource selection decreased from the landscape to the patch, selection for white birch quantity would decrease and selection for quality would increase. Counter to our prediction, pooled‐models showed selection for our estimates of quantity and quality to be neutral with low explanatory power and no scalar trends. At the individual‐level, however, we found evidence for quality and quantity trade‐offs, most notably at the home‐range scale where resource selection models explain the largest amount of variation in selection. Furthermore, individuals did not follow the same trade‐off tactic, with some preferring forage quantity over quality and vice versa. Such individual trade‐offs show that moose may be flexible in attaining a limiting nutrient. Our findings suggest that herbivores may respond to forage elemental compositions and quantities, giving tools like StDMs merit toward animal ecology applications. The integration of StDMs and animal movement data represents a promising avenue for progress in the field of zoogeochemistry." @default.
- W3101447894 created "2020-11-23" @default.
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- W3101447894 date "2020-11-18" @default.
- W3101447894 modified "2023-10-02" @default.
- W3101447894 title "Quantity–quality trade‐offs revealed using a multiscale test of herbivore resource selection on elemental landscapes" @default.
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- W3101447894 doi "https://doi.org/10.1002/ece3.6975" @default.
- W3101447894 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/7771173" @default.
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- W3101447894 hasPublicationYear "2020" @default.
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