Results 61 to 70 of about 36,626 (269)

Ecological study of chalk streams. Lambourn project. Interim report October 1977 to April 1979 [PDF]

, 1979
Few detailed studies have been made on the ecology of the chalk streams. A complex community of plants and animals is present and much more information is required to achieve an understanding of the requirements and interactions of all the species. It is

core  

Projected Temperature and Precipitation Expand Modeled Distributions of Reynoutria spp. While Modeled Distribution Changes for Ludwigia spp. Are Scenario‐Dependent at Watershed Scales in the Pacific Northwest, USA

River Research and Applications, EarlyView.
ABSTRACT Invasive species can fundamentally alter their introduced habitats by changing natural processes and harming native species crucial to functional ecosystems and human needs. Although the number of potential invasive species is large, the suitability of novel locations to support population establishment is limited by both physical and ...
Emily E. Smoot, Rebecca L. Flitcroft, Samuel S. Chan, Braeden Van Deynze, Sean Ewen, Sunny L. Jardine   +5 more
wiley   +1 more source

Population Dynamics of Northern Pearl Dace Margariscus nachtriebi in Anthropogenically Altered Headwater Streams of the Nebraska Sandhills Ecoregion

River Research and Applications, EarlyView.
ABSTRACT Empirical evidence of population demographic responses to environmental perturbations is a major knowledge gap for aquatic vertebrate populations. Extensive habitat alteration including channelization of headwater streams influences the habitat template on which small‐bodied fish are dependent to carry out distinct life stages and maintain or ...
Joseph Spooner, Jonathan Spurgeon
wiley   +1 more source

Development and Improvement of Habitat Suitability Criteria for Instream Habitat Assessments Conducted in Support of Environmental Flows in Florida

River Research and Applications, EarlyView.
ABSTRACT Florida's regulatory framework requires the establishment of minimum flows to protect aquatic ecosystems and water resources from significant harm. One of the primary methods used to evaluate significant harm is assessment of instream habitat, which relies on Habitat Suitability Criteria (HSC) curves that relate flow regimes and habitat ...
Eric J. Nagid, Kym Rouse Holzwart
wiley   +1 more source

Fish Space Use and Behavior in an Aquarium: The Use of Microhabitats as Enrichment

Zoo Biology, EarlyView.
The inclusion of microhabitats in a stream tank serves as environmental enrichment for fish in human care. ABSTRACT Environmental enrichment is an important tool to maintain the health and well‐being of animals in human care, but studies of environmental enrichment for fish in human care have lagged behind those of land animals.
Avery Millard, Ben Stenger, Zach Anderson, Justin Ballew, Hannah Fallon, Olivia Lowman, Elizabeth McAllister, Jessica Morales Valenzuela, Andrew Stuckey, Zainab Tanveer, Quinn Towery, Sally Tyrell, Andy Wall, Anna George, Hope Klug   +14 more
wiley   +1 more source

The Influence of Abiotic Factors on the Distribution of Macrophytes in Small Water Bodies in Temperate Ecosystems

Limnological Review
Currently, reviews focusing on the distribution of macrophytes focus primarily on large water bodies, regardless of the fact that small water bodies (SWBs), such as ponds, ditches and streams, often support higher levels of gamma macrophyte richness ...
Isabel Navarro Law, Isabelle Durance, Rachel Benstead, Michael E. Fryer, Colin D. Brown   +4 more
doaj   +1 more source

An approach to the use of macrophytes for monitoring standing waters [PDF]

, 2001
Under the EC Water Framework Directive (WFD), each Member State is required to devise a comprehensive national monitoring programme for surface waters, incorporating hydromorphological, physico-chemical and biological elements.
Palmer, Margaret A.
core  

Temporal community change in stream ecosystems varies by assemblage across US climates

Functional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Ecosystem properties are temporally dynamic. Temporal variability has been shown to decrease with increasing levels of biological organization (i.e. from population to community and ecosystem levels).
Megan C. Malish, Stephen C. Cook, Mariana Perez Rocha, Albert Ruhí, Michael T. Bogan, Thomas M. Neeson, Daniel C. Allen   +6 more
wiley   +1 more source

Can we predict community-wide effects of herbicides from toxicity tests on macrophyte species? [PDF]

, 2011
Macrophyte communities play an essential role in the way freshwater ecosystems function. It is thus of great concern to understand how environmental factors, especially anthropogenic ones, influence their composition and diversity.
Coutris, Claire, Elger, Arnaud, Merlina, Georges, Pinelli, Eric, Silvestre, Jérôme   +4 more
core   +2 more sources

Can manipulative parasites modify host‐mediated trophic effects? Experimental evidence from Schistocephalus solidus and three‐spined sticklebacks

Functional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Parasites can alter host traits, thereby reshaping host interactions and modifying density‐ and trait‐mediated effects in trophic cascades. But despite increasing research in parasite ecology, the cascading effects of parasitism from individual hosts to population and ...
Maja Drakula, Lena Gerigk, Ella S. Rothe, Jacob‐Josef Brüning, Mats Reckert, Alexander Brinker, Beatriz Elias Ranelli, Joachim Kurtz, Jaime M. Anaya‐Rojas   +8 more
wiley   +1 more source