Differentiation in physiological activity is a critical component of resource partitioning in resource-limited environments. For example, it is crucial to understand how plant physiological performance varies through time for different functional groups to forecast how terrestrial ecosystems will respond to change. Here, we tracked the seasonal progress of 13 plant species representing C3 shrub, perennial C3 and C4 grass, and annual forb functional groups of the Colorado Plateau, USA. We tested for differences in carbon assimilation strategies and how photosynthetic rates related to recent, seasonal, and annual precipitation and temperature variables. Despite seasonal shifts in species presence and activity, we found small differences in seasonally weighted annual photosynthetic rates among groups. However, differences in the timing of maximum assimilation (Anet) were strongly functional group-dependent. C3 shrubs employed a relatively consistent, low carbon capture strategy and maintained activity year-round but switched to a rapid growth strategy in response to recent climate conditions. In contrast, grasses maintained higher carbon capture during spring months when allperennials had maximum photosynthetic rates, but grasses were dormant during months when shrubs remained active. Perennial grass Anet rates were explained in part by precipitation accumulated during the preceding year and average maximum temperatures during the past 48h, a result opposite to shrubs. These results lend insight into diverse physiological strat...
AI-powered Research feed
Round-ups are the summaries of handpicked papers around trending topics published every week. These would enable you to scan through a collection of papers and decide if the paper is relevant to you before actually investing time into reading it.
Coronavirus Research Articles published between Sep 27, 2021 to Oct 03, 2021
Sep 27, 2021
Articles Included: 4
Zhanlin Ding et al. (2021) described synthesis of dual-phase Ti3O5/Ti4O7 nanofibers for efficient adsorption of SARS-CoV-2. In this study, they synthe...Read More
Climate change Research Articles published between Sep 27, 2021 to Oct 03, 2021
Sep 27, 2021
Articles Included: 3
In ‘Efficiency assessment of coal mine use and land restoration’, Chiu and colleagues (2021) reported that coal burning is still the main source of po...Read More
Quality Education Research Articles published between Sep 27, 2021 to Oct 03, 2021
Sep 27, 2021
Articles Included: 5
In ‘Online Learning Effectiveness During the COVID-19 Pandemic’, researchers reported that this paper is set out to explore the students’ attitudes to...Read More