Results 171 to 180 of about 1,253,786 (421)

Biomass Allocation Responses to Root Interactions in Wheat Cultivars Support Predictions of Crop Evolutionary Ecology Theory [PDF]

, 2022
Yong‐He Zhu, Jacob Weiner, Yi Jin, Ming‐Xi Yu, Feng‐Min Li   +4 more
openalex   +1 more source

Stomatal distribution and post‐fire recovery: Intra‐ and interspecific variation in plants of the pyrogenic Florida scrub

American Journal of Botany, EarlyView.
Abstract Premise Amphistomy, the presence of stomata on both leaf surfaces, can increase photosynthesis yet is uncommon across vascular plants. The relative infrequency of amphistomy is often attributed to high costs, such as transpirational water loss.
Genevieve Triplett, Aaron S. David
wiley   +1 more source

Existence of Weak Solutions for a Nonlocal Klausmeier Model [PDF]

arXiv
We establish the existence of weak solutions for a nonlocal Klausmeier model within a small time interval $[0, T)$. The Klausmeier model is a coupled, nonlinear system of partial differential equations governing plant biomass and water dynamics in semiarid regions.
arxiv  

Establishment patterns of saguaro cactus (Carnegiea gigantea) at the microsite scale help explain saguaro regeneration and distributions in heterogenous, regional habitats

American Journal of Botany, EarlyView.
Abstract Premise Establishment of long‐lived perennial plants is a pivotal event that often leads to reproductive maturity. The population dynamics of the giant saguaro cactus (Carnegiea gigantea) have been investigated over large spatial areas, but establishment patterns have not been studied at the microsite (1 m) scale.
Peter B. Breslin, Charlotte Brown, Alberto Búrquez, Frank W. Reichenbacher, Susana Rodriguez‐Buritica, D. Lawrence Venable, Deborah E. Goldberg   +6 more
wiley   +1 more source

The marine biological study carried out during the 25th Japanese Antarctic Research Expedition (1984/85) with special reference to the BIOMASS-oriented study

Antarctic Record, 1987
The biological research group of the 25th Japanese Antarctic Research Expedition (JARE-25,1984/85) conducted the studies on (1) the dynamics of organic carbon, nitrogen and phosphorus cycles, and (2) the ecology of krill and fish under the coastal fast ...
Kouichi Kawaguchi, Osamu Matsuda, Shingo Ishikawa   +2 more
doaj   +1 more source

Effect of post-fermentative yeast biomass as a substitute for soybean meal on feed utilization and rumen ecology in Thai native beef cattle [PDF]

, 2019
Anusorn Cherdthong, Phussorn Sumadong, Suban Foiklang, Nipa Milintawisamai, Metha Wanapat, Pin Chanjula, Nirawan Gunun, Pongsatorn Gunun   +7 more
openalex   +1 more source

Ecological Aspects of Biomass Removal in the Localities Damaged by Air-Pollution

, 2011
Removal of above-ground biomass is connected with nutrient exclusion from the forest ecosystem. This aspect is essential mainly in the localities with damage of soil conditions, e.g in the air-polluted areas. Therefore, quantification of possible biomass removal must be based on knowledge of current soil conditions (especially forest floor) under ...
Marian Slodičák, David Dušek, Dušan Kacálek, Jiri Novak   +3 more
openaire   +3 more sources

Rare species do not disproportionately contribute to phylogenetic diversity in a subalpine plant community

American Journal of Botany, EarlyView.
Abstract Premise Within plant communities, few species are abundant, and most are locally rare. Worldwide, 36% of plant species are exceedingly rare and often face high extinction risk. However, the community phylogenetic impact of the loss of rare plants is largely unknown in many systems.
Leah N. Veldhuisen, Verónica Zepeda, Brian J. Enquist, Katrina M. Dlugosch   +3 more
wiley   +1 more source

Using machine learning to inform harvest control rule design in complex fishery settings [PDF]

arXiv
In fishery science, harvest management of size-structured stochastic populations is a long-standing and difficult problem. Rectilinear precautionary policies based on biomass and harvesting reference points have now become a standard approach to this problem.
arxiv  

Effect of rainfall and fire frequency on tree--grass dynamics: Capturing the forest--savanna distributions along biogeographic gradients [PDF]

arXiv, 2018
In this work, we improve a previous minimalistic tree-grass savanna model by taking into account water availability, in addition to fire, since both factors are known to be important for shaping savanna physiognomies along a climatic gradient. As in our previous models, we consider two nonlinear functions of grass and tree biomasses to respectively ...
arxiv