Results 61 to 70 of about 1,908 (149)

Trace Element Contamination in Top Predatory Elasmobranchs From the Southern Black Sea: Implications for Ecosystem Health and Risk Assessment

Environmental Toxicology, EarlyView.
ABSTRACT Environmental pollution resulting from the rapid increase in human population, urbanization, intensive use of chemicals in agriculture, and industrial development has reached a level that threatens natural life today. Trace elements are one of the most important factors causing significant levels of pollution in the environment and are added ...
Levent Bat, Süleyman Özdemir, Zekiye Birinci Özdemir, Ayşah Öztekin   +3 more
wiley   +1 more source

Wildfire Ash Alters Freshwater Crustacean Behavior: Disentangling the Contributions of Suspended Macroparticles and Ash‐Induced Alkalinization

Environmental Toxicology, EarlyView.
ABSTRACT Climate change and anthropogenic ignitions are intensifying wildfire frequency worldwide, elevating the risk of freshwater contamination by ash. In water, dissolved ash releases ions and other toxic constituents that increase pH and alter physicochemical conditions, while suspended ash particles may impose mechanical stress, disrupt behavior ...
Pétterson B. Pereira‐Silva, Diogo R. Pacheco, Gustavo Kirsch, Ronnilda M. G. Araujo, Bianca V. C. Oscar, William G. Matias, Sandro Santos, Bruno R. S. Figueiredo   +7 more
wiley   +1 more source

Assessment of trace and macroelement accumulation in cyprinid juveniles as bioindicators of aquatic pollution: effects of diets and habitat preferences

Scientific Reports
Juveniles of three cyprinids with various diets and habitat preferences were collected from the Szamos River (Hungary) during a period of pollution in November 2013: the herbivorous, benthic nase (Chondrostoma nasus), the benthivorous, benthic barbel ...
Krisztián Nyeste, Nurfatin Zulkipli, Ifeanyi Emmanuel Uzochukwu, Dóra Somogyi, László Nagy, István Czeglédi, Sándor Harangi, Edina Baranyai, Edina Simon, Sándor Alex Nagy, Iliana Velcheva, Vesela Yancheva, László Antal   +12 more
doaj   +1 more source

Habitat-mediated dive behavior in free-ranging grey seals.

PLoS ONE, 2013
Understanding the links between foraging behaviour and habitat use of key species is essential to addressing fundamental questions about trophic interactions and ecosystem functioning.
Mark Jessopp, Michelle Cronin, Tom Hart
doaj   +1 more source

Movement and Space Use Patterns of the Beale's Eyed Turtle (Sacalia bealei) Suggest Sensitivity to Environmental Changes and Poaching 比氏眼斑龟 (Sacalia bealei) 的活动与空间利用模式揭示其对环境变化及盗猎的敏感性

Wildlife Letters, EarlyView.
Using radiotelemetry, we found that the movement and home range of the endangered Sacalia bealei varied significantly across reproductive classes and seasons, with males exhibiting greater movement than females during wet and mating seasons. The species exhibits strong aquatic dependence, favoring deep pools interspaced among riffle‐pool sequences ...
Wing Sing Chan, Jonathan J. Fong, Timothy C. Bonebrake, Yik‐Hei Sung   +3 more
wiley   +1 more source

Competition for shelter between four invasive gobiids and two native benthic fish species

Current Zoology, 2011
Recent invasions by non-native gobiid fish species that are ongoing in the Western European rivers Rhine and Meuse, will lead to interactions with native benthic fish species.
N. VAN KESSEL, M. DORENBOSCH, M.R.M. DE BOER, R.S.E.W. LEUVEN,G. VAN DER VELDE
doaj  

Abundance and behaviour of detritivorous fish as indicators of reef degradation in the Pemba Channel, Tanzania

Frontiers in Conservation Science
Coral reef degradation is changing benthic habitats globally, with increasing transitions from structurally complex coral frameworks to rubble- and sediment dominated substrates.
Aliyah Lomax, Kennedy Osuka-Edeye, Kennedy Osuka-Edeye   +2 more
doaj   +1 more source

A multi-gene phylogeny of Cephalopoda supports convergent morphological evolution in association with multiple habitat shifts in the marine environment

BMC Evolutionary Biology, 2012
Background The marine environment is comprised of numerous divergent organisms living under similar selective pressures, often resulting in the evolution of convergent structures such as the fusiform body shape of pelagic squids, fishes, and some marine ...
Lindgren Annie R, Pankey Molly S, Hochberg Frederick G, Oakley Todd H   +3 more
doaj   +1 more source

Ecological scale mediates nonlinear relationships of animal nutrient excretion with dissolved organic matter

Journal of Animal Ecology, EarlyView.
We show that nutrient excretion by vertebrates and invertebrates varies nonlinearly with dissolved organic matter concentration and composition and by taxonomic rank, with stronger patterns at the individual compared to the community level. Our findings highlight the importance of examining animal‐mediated nutrient cycling across taxa and ecological ...
Sandra Klemet‐N'Guessan, Marina Taskovic, Nolan J. T. Pearce, Marguerite A. Xenopoulos   +3 more
wiley   +1 more source

Rapid loss, and slow recovery, of coral reef structural complexity resulting from a prolonged marine heatwave

Journal of Animal Ecology, EarlyView.
Using Structure‐from‐Motion photogrammetry in a longitudinal study, we show that although coral reef habitat complexity had declined significantly by the end of the most prolonged tropical marine heatwave on record, no further losses were detected and 3 years later the reef had begun to recover this critical ecosystem function.
Kevin A. Bruce, John H. R. Burns, Dominique G. Maucieri, Kailey Pascoe, Julia K. Baum   +4 more
wiley   +1 more source