Results 41 to 50 of about 61,430 (223)

Discovery of Two Moth Species New to Michigan (Lepidoptera: Noctuidae, Tortricidae) [PDF]

open access: yes, 2018
Rhizedra lutosa (Noctuidae) and Argyrotaenia cockerellana (Tortricidae), are reported from Michigan for the first time, from remnant patches of mesic lakeplain prairie in Sumpter Township, Wayne Co.
Summerville, Keith S
core   +3 more sources

Catchment liming creates recolonization opportunity for sensitive invertebrates in a smelter impacted landscape

open access: yesJournal of Limnology, 2016
The response of a sensitive indicator species to the effects of catchment liming was assessed in a lake severely impacted by atmospheric emissions from a metal smelter in Sudbury, Canada.
John M. Gunn   +2 more
doaj   +1 more source

Toxicity of sediments in eight urban stormwater management ponds: bioassessment by oligochaete community metrics used in the sediment quality triad

open access: yesWater Science and Technology, 2023
Implemented for decades as part of the ‘best management practices (BMPs)’ for controlling urban runoff impacts on receiving waters, stormwater management ponds (SMPs) have been increasingly viewed as potential habitats for urban wildlife.
Guillaume Tixier   +5 more
doaj   +1 more source

Ecology of endolithic lichens colonizing granite in continental Antarctica [PDF]

open access: yes, 2005
In this study, the symbiont cells of several endolithic lichens colonizing granite in continental Antarctica and the relationships they have with the abiotic environment were analyzed in situ, in order to characterize the microecosystems integrating ...
Ascaso, Carmen   +4 more
core   +2 more sources

Long-Term Trends in Regional Wet Mercury Deposition and Lacustrine Mercury Concentrations in Four Lakes in Voyageurs National Park

open access: yesApplied Sciences, 2021
Although anthropogenic mercury (Hg) releases to the environment have been substantially lowered in the United States and Canada since 1990, concerns remain for contamination in fish from remote lakes and rivers where atmospheric deposition is the ...
Mark E. Brigham   +5 more
doaj   +1 more source

Perfluoroalkyl acids in the Canadian environment: Multi-media assessment of current status and trends

open access: yesEnvironment International, 2013
In Canada, perfluoroalkyl acids (PFAAs) have been the focus of several monitoring programs and research and surveillance studies. Here, we integrate recent data and perform a multi-media assessment to examine the current status and ongoing trends of ...
Sarah B. Gewurtz   +33 more
doaj   +1 more source

Graptemys ernsti [PDF]

open access: yes, 1994
Number of Pages: 2Integrative BiologyGeological ...
Lovich, Jeffrey E., McCoy, Clarence J.
core   +1 more source

The bumble bees (Hymenoptera: Apidae: Bombus) of Arkansas, fifty years later [PDF]

open access: yes, 2015
Many species of bumble bees (Hymenoptera: Apidae: Bombus Latreille) are declining throughout their ranges in North America, yet detecting population trends can be difficult when historical survey data are lacking.  In the present study, contemporary data
Szalanski, Allen L., Tripodi, Amber D.
core   +2 more sources

Freshwater fish functional diversity shows diverse responses to human activities, but consistently declines in the tropics

open access: yesEcography, EarlyView.
Freshwater environments are intertwined with human activities and the consequence has been environmental degradation and biodiversity loss. Fish provide key ecological and economic benefits, and fish abundance and diversity can be affected by human activities resulting in functional diversity (FD) changes that might scale up to ecosystem impacts ...
Romullo Guimarães de Sá Ferreira Lima   +3 more
wiley   +1 more source

Soil biota sensitivity to hydroclimate variability in a polar desert ecosystem

open access: yesArctic, Antarctic, and Alpine Research
An anomalous warm weather event in the Antarctic McMurdo Dry Valleys on 18 March 2022 created an opportunity to characterize soil biota communities most sensitive to freeze–thaw stress.
Meredith D. Snyder   +6 more
doaj   +1 more source

Home - About - Disclaimer - Privacy