Poor relationships between NEON Airborne Observation Platform data and field‐based vegetation traits at a mesic grassland

Ecology ◽  
2021 ◽  
Author(s):  
Stephanie Pau ◽  
Jesse B. Nippert ◽  
Ryan Slapikas ◽  
Daniel Griffith ◽  
Seton Bachle ◽  
...  
Keyword(s):  
Mesic Grassland

Rodent seed predation and seedling recruitment in mesic grassland

Oecologia ◽  
1999 ◽  
Vol 118 (3) ◽  
pp. 288-296 ◽  
Author(s):  
G. R. Edwards ◽  
M. J. Crawley
Keyword(s):  
Seed Predation ◽  
Seedling Recruitment ◽  
Mesic Grassland

scholarly journals Testing for consistency in the impacts of a burrowing ecosystem engineer on soil and vegetation characteristics across biomes

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
M. A. Louw ◽  
N. S. Haussmann ◽  
P. C. le Roux
Keyword(s):  
Species Composition ◽  
Ecosystem Engineer ◽  
Environmental Gradients ◽  
Plant Cover ◽  
Ecosystem Engineers ◽  
Conservation Strategies ◽  
Annual Rainfall ◽  
Mesic Grassland ◽  
Vegetation Characteristics ◽  
Semi Arid

AbstractThe impacts of ecosystem engineers may be expected to vary along environmental gradients. Due to some resources being more limited in arid than in mesic environments, disturbances created by burrowing mammals are expected to have a greater ameliorating effect in arid environments, with larger differences in microhabitat conditions expected between burrows and undisturbed areas. The aim of this study was to test if the impacts of a medium-sized burrowing mammal, the aardvark, on soil properties (soil temperature, moisture and compaction) and vegetation characteristics (plant cover, species richness and species composition) are consistent across three biomes that differ strongly in annual rainfall. Burrowing affected soil and vegetation attributes, but the direction and magnitude of these biogeomorphological impacts were not consistent across the different biomes. For example, plant species composition was altered by burrowing in the arid scrubland and in the mesic grassland, but not in the semi-arid savannah. Contrary to expectations, the difference in the impacts of burrowing between biomes were not related to rainfall, with burrowing having strong, albeit different, impacts in both the arid scrubland and the mesic grassland, but weaker effects in the semi-arid savannah. It appears, therefore, that the impacts of these biogeomorphic agents may be site-specific and that it may be difficult to predict variation in their biotic and abiotic effects across environmental gradients. As a result, forecasting the impacts of ecosystem engineers under different conditions remains a challenge to management, restoration and conservation strategies related to these types of species.

Taxonomy, paleoecology and taphonomy of ground sloths (Xenarthra) from the Fairmead Landfill locality (Pleistocene: Irvingtonian) of Madera County, California

2013 ◽  
Vol 79 (2) ◽  
pp. 215-227 ◽  
Author(s):  
H. Gregory McDonald ◽  
Robert G. Dundas ◽  
James C. Chatters
Keyword(s):  
Plant Communities ◽  
Relative Abundance ◽  
Preliminary Analysis ◽  
Vertebrate Fauna ◽  
Open Habitat ◽  
Mesic Grassland ◽  
Ecological Requirements ◽  
Heterogeneous Landscape ◽  
Faunal Diversity ◽  
Ground Sloths

AbstractThe Fairmead Landfill locality contains a diverse middle Irvingtonian, (0.78–0.55 Ma), vertebrate fauna that includes three sloths, Megalonyx wheatleyi, Nothrotheriops shastensis and Paramylodon harlani. The co-occurrence of these three genera in a single fauna is relatively rare in both the Irvingtonian and Rancholabrean and this is only the fourth documented Irvingtonian fauna to contain all three sloth genera. The presence of the three different sloths, each of which had different ecological requirements, indicates the presence of a variety of different habitats at this time and a heterogeneous landscape. Preliminary analysis of pollen from the site supports the interpretation of the existence of a mosaic of plant communities, but a landscape dominated by a mesic grassland. This interpretation is also supported by the total faunal diversity that includes taxa associated with woodlands as well as open habitat and taphonomic differences in the preservation and relative abundance of the different sloths. Evolutionarily the Fairmead Landfill sloths show a suite of morphological, size and proportional characters that indicate they represent transitional populations between older and younger members of their respective lineages.

Abrupt transition of mesic grassland to shrubland: evidence for thresholds, alternative attractors, and regime shifts

Ecology ◽  
2014 ◽  
Vol 95 (9) ◽  
pp. 2633-2645 ◽  
Author(s):  
Zak Ratajczak ◽  
Jesse B. Nippert ◽  
Troy W. Ocheltree
Keyword(s):  
Regime Shifts ◽  
Abrupt Transition ◽  
Mesic Grassland

Drought and phosphorus affect productivity of a mesic grassland via shifts in root traits of dominant species

2019 ◽  
Vol 444 (1-2) ◽  
pp. 457-473 ◽  
Author(s):  
Jeff Chieppa ◽  
Uffe N. Nielsen ◽  
David T. Tissue ◽  
Sally A. Power
Keyword(s):  
Dominant Species ◽  
Root Traits ◽  
Mesic Grassland
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