Results 81 to 90 of about 187,503 (276)

Implementación de una nueva técnica para determinar el estado trófico del Embalse Río Tercero (Córdoba, Argentina)

Biología Acuática, 2019
The trophic state of a water body is determined by indexes, which allow an overall assessment of the quality of the reservoir. However, the main disadvantage of this methodology is its limited ability to expose spatio-temporal differences in the ...
Matías Bonansea, Edgar Garetto, Claudia Rodríguez, Lucio Pinotti   +3 more
doaj  

Gelatinous filter feeders increase ecosystem efficiency

Communications Biology
Gelatinous filter feeders (e.g., salps, doliolids, and pyrosomes) have high filtration rates and can feed at predator:prey size ratios exceeding 10,000:1, yet are seldom included in ecosystem or climate models.
Michael R. Stukel, Moira Décima, Christian K. Fender, Andres Gutierrez-Rodriguez, Karen E. Selph   +4 more
doaj   +1 more source

PICES Press, Vol. 7, No. 2, July 1999 [PDF]

, 1999
Improving PICES CO2 measurement quality The status of the Bering Sea: July - December 1998 The state of the eastern North Pacific since October 1998 The state of the western North Pacific in the second half of 1998 Paul Henry LeBlond Report on ...

core  

The Food Web of Potter Cove (Antarctica): complexity, structure and function [PDF]

, 2018
Knowledge of the food web structure and complexity are central to better understand ecosystem functioning. A food-web approach includes both species and energy flows among them, providing a natural framework for characterizing species’ ecological roles ...
Barrera Oro, Esteban, Campana, Gabriela Laura, Cordone, Georgina Florencia, De Troch, Marleen, Deregibus, Dolores, Doyle, Santiago Raúl, Marina, Tomas Ignacio, Momo, Fernando Roberto, Moreira, María Eugenia, Quartino, Maria Liliana, Sahade, Ricardo Jose, Salinas, Vanesa Anabella, Saravia, Leonardo Ariel, Tatian, Marcos, Torre, Luciana   +14 more
core   +2 more sources

Trophic interactions in a changing world: modelling aboveground–belowground interactions

Basic and Applied Ecology, 2004
The rate and scale of human-driven changes can exert profound impacts on ecosystems, the species that make them up and the services they provide that sustain humanity. Given the speed at which these changes are occurring, one of society's major challenges is to coexist within ecosystems and to manage ecosystem services in a sustainable way.
Schröter, D., Brussaard, L., de Deyn, G.B., Poveda, K., Brown, V.K., Berg, M.P., Wardle, D.A., Moore, J., Wall, D.H.   +8 more
openaire   +4 more sources

Phylogenomics reveals the evolution of floral traits associated with pollinators and pollinator–prey conflict within the carnivorous Pinguicula subgenus Temnoceras

American Journal of Botany, EarlyView.
Abstract Premise The carnivorous plant genus Pinguicula (Lentibulariaceae) exhibits remarkable floral diversity associated with pollination, particularly in the largest subgenus Temnoceras, which spans Mexico and Central America. Despite this diversity, the relationships between species and the evolution of key floral traits remain unresolved. Here, we
Yunjia Liu, Qianshi Lin, Steven J. Fleck, Martín Mata‐Rosas, Enrique Ibarra‐Laclette, Tanya Renner   +5 more
wiley   +1 more source

Long-term prediction of algal chlorophyll based on empirical models and the machine learning approach in relation to trophic variation in Juam Reservoir, Korea

Heliyon
This study analyzed spatiotemporal variation and long-term trends in water quality indicators and trophic state conditions in an Asian temperate reservoir, Juam Reservoir (JR), and developed models that forecast algal chlorophyll (CHL-a) over a period of
Sang-Hyeon Jin, Namsrai Jargal, Thet Thet Khaing, Min Jae Cho, Hyeji Choi, Bilguun Ariunbold, Mnyagatwa Geofrey Donat, Haechan Yoo, Md Mamun, Kwang-Guk An   +9 more
doaj   +1 more source

Environmental effects of fish introductions in small, high-latitude lakes

Frontiers in Marine Science, 2015
Fish introductions have been a common practice for thousands of years but only relatively the attention has focused on their ecosystem effects. Using a combination of paleo- and neo-limnological methods, we tried to unravel the trophic effects of such ...
Marco Milardi
doaj   +1 more source

Contrasting effects of experimental warming in the initiation year and the flowering year on flower phenology of boreal understory species

American Journal of Botany, EarlyView.
Abstract Premise High‐latitude plants initiate flower primordia at least 1 year before flowering. While impacts of rising temperatures on phenology in the flowering year are well studied, the effects of warmer temperatures in the initiation year (IY; the year before flowering) are virtually unknown.
Christa P. H. Mulder, Eileen P. Schaub, Pamela K. Diggle   +2 more
wiley   +1 more source

Application of Multispectral Sensors Carried on Unmanned Aerial Vehicle (UAV) to Trophic State Mapping of Small Reservoirs: A Case Study of Tain-Pu Reservoir in Kinmen, Taiwan

Remote Sensing, 2015
Multispectral, as well as multi-temporal, satellite images, coupled with measurements, in situ, have been widely applied to the water quality monitoring of reservoirs.
Tung-Ching Su, Hung-Ta Chou
doaj   +1 more source