Zobrazeno 1 - 10
of 65
pro vyhledávání: '"Punidan D. Jeyasingh"'
Autor:
Aime'e M. Yousey, Priyanka Roy Chowdhury, Nicole Biddinger, Jennifer H. Shaw, Punidan D. Jeyasingh, Lawrence J. Weider
Publikováno v:
Royal Society Open Science, Vol 5, Iss 3 (2018)
Understanding how populations adapt to rising temperatures has been a challenge in ecology. Research often evaluates multiple populations to test whether local adaptation to temperature regimes is occurring. Space-for-time substitutions are common, a
Externí odkaz:
https://doaj.org/article/ad5b5a3e09a445da9fd7dc5d8a2c3c50
Autor:
Maïté S. Guignard, Andrew R. Leitch, Claudia Acquisti, Christophe Eizaguirre, James J. Elser, Dag O. Hessen, Punidan D. Jeyasingh, Maurine Neiman, Alan E. Richardson, Pamela S. Soltis, Douglas E. Soltis, Carly J. Stevens, Mark Trimmer, Lawrence J. Weider, Guy Woodward, Ilia J. Leitch
Publikováno v:
Frontiers in Ecology and Evolution, Vol 5 (2017)
Nitrogen (N) and/or phosphorus (P) availability can limit growth of primary producers across most of the world's aquatic and terrestrial ecosystems. These constraints are commonly overcome in agriculture by applying fertilizers to improve yields. How
Externí odkaz:
https://doaj.org/article/1c50486ffed7413189d06c28fe5faaf5
Publikováno v:
Frontiers in Microbiology, Vol 8 (2017)
Elemental homeostasis has been largely characterized using three important elements that were part of the Redfield ratio (i.e., carbon: nitrogen: phosphorus). These efforts have revealed substantial diversity in homeostasis among taxonomic groups and
Externí odkaz:
https://doaj.org/article/960c6da67c984d318404a7adf9694bb6
Autor:
Ryan E. Sherman, Priyanka Roy Chowdhury, Kristina D. Baker, Lawrence J. Weider, Punidan D. Jeyasingh
Publikováno v:
Royal Society Open Science, Vol 4, Iss 12 (2017)
The framework ecological stoichiometry uses elemental composition of species to make predictions about growth and competitive ability in defined elemental supply conditions. Although intraspecific differences in stoichiometry have been observed, we h
Externí odkaz:
https://doaj.org/article/0e4d2f23c8ed403e81cd80929b91f829
Publikováno v:
Journal of The Royal Society Interface. 20
About 20 elements underlie biology and thus constrain biomass production. Recent systems-level observations indicate that altered supply of one element impacts the processing of most elements encompassing an organism (i.e. ionome). Little is known ab
Publikováno v:
Freshwater Biology. 67:353-364
Autor:
Jana Isanta‐Navarro, Clay Prater, Logan M. Peoples, Irakli Loladze, Tin Phan, Punidan D. Jeyasingh, Matthew J. Church, Yang Kuang, James J. Elser
Publikováno v:
Ecology letters. 25(10)
The growth rate hypothesis (GRH) posits that variation in organismal stoichiometry (C:P and N:P ratios) is driven by growth-dependent allocation of P to ribosomal RNA. The GRH has found broad but not uniform support in studies across diverse biota an
Publikováno v:
Hydrobiologia. 848:2731-2744
The effects of nitrogen (N) and phosphorus (P) on productivity have been well characterized in freshwater ecosystems, including in the abundance of diazotrophic cyanobacteria that cause harmful algal blooms. However, there is much residual variation
Publikováno v:
Oecologia
Diverse global change processes are reshaping the biogeochemistry of stream ecosystems. Nutrient enrichment is a common stressor that can modify flows of biologically important elements such as carbon (C), nitrogen (N), and phosphorus (P) through str
Autor:
Punidan D. Jeyasingh, Katja Pulkkinen
Publikováno v:
Oecologia. 191:51-60
The availability of iron (Fe) varies considerably among diet items, as well as ecosystems. Availability of Fe has also changed due to anthropogenic environmental changes in oceanic as well as inland ecosystems. We know little about its role in the nu