Rangeland Ecology & Management, Journal Year: 2022, Volume and Issue: 83, P. 112 - 116
Published: May 7, 2022
Language: Английский
Journal of Environmental Management, Journal Year: 2024, Volume and Issue: 357, P. 120731 - 120731
Published: March 28, 2024
Language: Английский
Citations
7
Plant Growth Regulation, Journal Year: 2025, Volume and Issue: unknown
Published: May 6, 2025
Language: Английский
Citations
0
Smart Agricultural Technology, Journal Year: 2022, Volume and Issue: 2, P. 100040 - 100040
Published: Feb. 9, 2022
Perennial ryegrass staggers (staggers) is a neurotoxic condition in livestock that caused by consumption of (Lolium perenne) infected with specific strains Epichloë fungal endophytes. These grass-endophyte associations produce toxins can adversely affect animals and some cases lead to death. In sheep, symptoms typically include head shaking, changes gait, stiffness falling. Affected sheep recover after removing them from pastures containing toxic endophyte. A pilot case study was conducted Lincoln, New Zealand determine if could be identified data collected through GPS tracking accelerometers. Fourteen per treatment grazed either endophyte-infected paddock or an endophyte-free control for 17 days late March early April 2017. Randomly selected were fitted collars 3-axis accelerometer recording movements at 12 Hz (10 endophyte 6 the paddock). Three also tracked 3-minute intervals receivers. Sheep scored experienced observer weekly end using 0 5 scale. Control did not display any 10 pasture displayed little no (0 1 score). The other 4 had scores 2 study. grazing (2.91 m/min ± 0.04 SE) moved slower (P=0.04) than (3.12 0.05 SE). Distance travelled varied among days, but there appear temporal trends. Machine learning analyses showed behavior affected changed during Activity displaying (scores ≥ 2) increased more morning midday latter part few (score < 2). However, individual night remained relatively consistent Accelerometers may useful remotely detecting perennial staggers.
Language: Английский
Citations
8
Journal of Ecology, Journal Year: 2024, Volume and Issue: 112(9), P. 2082 - 2092
Published: Aug. 5, 2024
Abstract Grasslands support a variety of herbivores that profoundly impact biodiversity and ecosystem functioning at local regional scales. Understanding how different influence plant diversity across multiple scales is crucial for effective conservation. However, most studies have focussed on the effects grazing intensity diversity, neglecting impacts associated mechanisms Based 7‐year experiment with 16 plots in Inner Mongolia's typical steppe, we compared scale‐dependent (cattle, sheep goats) moderate intensity. We used species–area relationship (SAR) linear mixed models to analyse changes species richness (1, 16, 32, 64, 128, 256, 512 1024 m 2 ). To understand SAR slope changes, examined four potential mechanisms: overall richness, total number individuals, abundance distribution aggregation. found had scale as indicated by significant decrease slope. This suggests negative were more pronounced larger Additionally, varied. Cattle stronger positive than goats both small (1 ) large (1024 Conversely, did control The was mainly caused distribution. primarily because cattle dominant species, whereas rare species. Synthesis : Our results demonstrate even same intensity, vary study scale, herbivore type their interaction. finding has important implications conservation grassland given typically occurs quadrats involves various distinct diversity.
Language: Английский
Citations
1
Agriculture Ecosystems & Environment, Journal Year: 2023, Volume and Issue: 348, P. 108400 - 108400
Published: Feb. 22, 2023
We investigated the synergic use of optical and biophysical traits to characterize Bromus inermis (smooth bromegrass) pasture lands assess combined effects long-term (15-years) rotational grazing management strategies (i) no fertilization (C), (ii) mineral nitrogen (N) (HF), (iii) supplemented through dry distiller grains plus soluble (DDGS; SF)- on forage growth, performance, quality. found that improved pasture's biomass, specific leaf area, area index (LAI), as well The N did not offer an advantage (e.g., quality, yield) over DDGS under both grazed ungrazed conditions. Optical, proximal sensing techniques allowed characterization in a non-invasive time-efficient manner. tested established vegetation indices (VIs) for their accuracy identifying quantifying important physiological morphological traits. Results showed Normalized Difference Vegetation Index (NDVI) Vogelmann (VOG) were among best performing indices. contribute our understanding impact pastures validate methods. Proximal methods provide direct, non-invasive, time efficient tool assessment performance health vegetation, keys successful integrative strategies.
Language: Английский
Citations
2
Rangeland Ecology & Management, Journal Year: 2022, Volume and Issue: 83, P. 112 - 116
Published: May 7, 2022
Language: Английский
Citations
1