Results 101 to 110 of about 244,849 (330)

Role of hydraulic residence time in shaping phytoplankton community assembly in the upper yellow river cascade reservoirs

Frontiers in Environmental Science
Introduction: Cascade hydropower development significantly alters the structure and function of river ecosystems. Phytoplankton, as primary producers, are highly sensitive to environmental changes, and their diversity and community structure reflect the ...
Qiyong Luo, Qiyong Luo, Linyu Zhu, Daikui Li, Zhigang Zu, Zhigang Zu, Kebin Chen, Jia Wang, Yujun Yi, Yujun Yi, Yujun Yi   +10 more
doaj   +1 more source

Nutrient Addition Effects on Phytoplankton Communities in the Amazon River Plume [PDF]

The types and abundance of phytoplankton is largely controlled by availability of sunlight and bioavailable nutrients. Phytoplankton require essential nutrients including nitrate, phosphate, and silicate to grow, so understanding the role of these ...
Klotz, Vivian, Montoya, Joseph, Ramcharitar, Benjamin, Strope, Erica Kelly, Subramaniam, Ajit, Thomas, Crystal S.   +5 more
core   +1 more source

Remote sensing of coccolithophore blooms in selected oceanic regions using the PhytoDOAS method applied to hyper-spectral satellite data [PDF]

, 2012
In this study temporal variations of coccolithophore blooms are investigated using satellite data. Eight years (from 2003 to 2010) of data of SCIAMACHY, a hyper-spectral satellite sensor on-board ENVISAT, were processed by the PhytoDOAS method to monitor
Altenburg-Soppa, M., Bracher, Astrid, Dinter, T., Sadeghi, A., Taylor, B., Vountas, M.   +5 more
core   +2 more sources

Addressing biases in sliding window analysis gives new insight into the response of parturition date to weather in a wild mammal

Oikos, EarlyView.
Animal breeding phenology in temperate and high latitude regions is often predicted by weather variables, such as temperature. Much work on this topic has focused on taxonomic groups that employ adaptive plastic responses to annual variation in an environmental cue, with analytical approaches developed to determine when weather has an effect and the ...
Kirsty H. Macphie, Sean Morris, Alison Morris, Fiona E. Guinness, Timothy H. Clutton‐Brock, Loeske E. B. Kruuk, Josephine M. Pemberton   +6 more
wiley   +1 more source

Spatial variations of small phytoplankton contributions in the Northern Bering Sea and the Southern Chukchi Sea

GIScience & Remote Sensing, 2019
Phytoplankton size classes (hereafter, PSCs) were derived from satellite ocean color data using a present phytoplankton abundance-based optical algorithm in the northern Bering and southern Chukchi Seas to characterize the spatial and seasonal variations
Sang Heon Lee, Jongseong Ryu, Dabin Lee, Jung-Woo Park, Jae-Il Kwon, Jingping Zhao, Seunghyun Son   +6 more
doaj   +1 more source

Overexploitation can counteract top‐down control and the paradox of enrichment in simple food chains

Oikos, EarlyView.
Because of its high abundance or its high feeding intensity, a consumer can overexploit its resource by consuming it on a shorter timescale than resource regeneration. While this short‐term overexploitation is widespread in nature, its general implications for biotic control patterns and ecosystem stability are not clear.
Josquin Guerber, Nicolas Loeuille, Isabelle Gounand   +2 more
wiley   +1 more source

Defining the ecological strategies of phytoplankton associated bacteria

Nature Communications
Ecological interactions between phytoplankton and bacteria govern the productivity and biogeochemistry of aquatic ecosystems. However, our understanding of these partnerships primarily comes from laboratory-based model systems, meaning that little is ...
Amaranta Focardi, Anna R. Bramucci, Penelope Ajani, Abeeha Khalil, Jean-Baptiste Raina, Justin R. Seymour   +5 more
doaj   +1 more source

Insight into diversity change, variability and co-occurrence patterns of phytoplankton assemblage in headwater streams: a study of the Xijiang River basin, South China

Frontiers in Microbiology
Phytoplankton has been used as a paradigm for studies of coexistence of species since the publication of the “paradox of the plankton.” Although there are a wealth of studies about phytoplankton assemblages of lakes, reservoirs and rivers, our knowledge ...
Yuyang Peng, Chuangfeng Wu, Guibin Ma, Haiming Chen, Qinglong L. Wu, Qinglong L. Wu, Dan He, Erik Jeppesen, Erik Jeppesen, Erik Jeppesen, Erik Jeppesen, Lijuan Ren   +11 more
doaj   +1 more source

The influence of physico-chemical parameters on phytoplankton distribution in a head water stream of Garhwal Himalayas: A case study

Egyptian Journal of Aquatic Research, 2016
Physico-chemical parameters play a major role in determining the density, diversity and occurrence of phytoplankton in a headwater stream. The present study was conducted to assess the relationship between physico-chemical parameters and phytoplankton ...
Ramesh C. Sharma, Neetu Singh, Anita Chauhan   +2 more
doaj   +1 more source

Seasonal variations in planktonic food web structure affect stability by shifting the distribution of energy fluxes

Oikos, EarlyView.
Seasonality in temperate ecosystems shapes species phenology, influencing interactions and food web structure. Variations in species richness and biomass affect trophic interaction strength, a crucial factor for community stability, which can be assessed through energy fluxes – an essential indicator of ecosystem function.
Simon Bazin, Isabelle Domaizon, Cécilia Barouillet, Victor Frossard, Arnaud Sentis   +4 more
wiley   +1 more source