Results 51 to 60 of about 514,060 (181)

Documenting presence and movements of piscivorous birds along the Illinois River and within the Chicago Area Waterway System

, 2017
: This technical report summarizes research conducted on piscivorous birds along the Illinois River and in the Chicago Area Waterway System (CAWS) to assess the potential role of these birds as vectors of invasive carp (bighead carp (Hypophthalmichthys ...
M. Guilfoyle, Brian S. Dorr, K. Hanson‐Dorr, R. Fischer, Anthony M. Friona   +4 more
semanticscholar   +1 more source

Optimal Installation of Overhead Lines (Tegusu) to Reduce Predation from Piscivorous Birds to Plecoglossus altivelis (Ayu) Taking into Account of Its Decaying Protection Effect

, 2017
: This paper develops a simple mathematical model for determining an optimal installation timing of the overhead lines (Tegusu) to reduce predation from piscivorous birds, such as Phalacrocorax carbo (Kawau), to Plecoglossus altivelis (Ayu) taking into ...
Y. Yaegashi, H. Yoshioka, K. Unami, M. Fujihara   +3 more
semanticscholar   +1 more source

Correction: Cormorant Catch Concerns for Fishers: Estimating the Size-Selectivity of a Piscivorous Bird

PLoS ONE, 2014
A mathematical expression of "variance" in the first line immediately below Equation number 6 in the "Estimation procedure" of the Materials and Methods is incorrectly given. The correct expression is: exp(2ϴ3+ϴ24)(exp(ϴ24)-1).
Vladimir Troynikov, Athol Whitten, Harry Gorfine, Žilvinas Pūtys, Eglė Jakubavičiūtė, Linas Ložys, Justas Dainys   +6 more
openaire   +4 more sources

How wildlife respond to tropical cyclones: short‐term tactics and long‐term impacts

Biological Reviews, EarlyView.
ABSTRACT From butterflies to lizards and from sharks to seabirds, wildlife exhibit tactics to survive the impacts of tropical cyclones, also known as hurricanes, cyclones, or typhoons depending on where they occur. Some species seek refuge during the storm by moving, some remain in place and ride it out, and others move longer distances, avoiding the ...
Erin L. Koen, Mohamed Khalil Meliane, Zachery B. Holmes, Karl E. Miller, William J. Barichivich, Emilie Dedeban, Alex Furst, Miranda Imeri, Peyton E. Niebanck, Samantha Nunn, Kailee Pearson, Nicole Rita, Brier Ryver, Dakotah Shaffer, Susan C. Walls, E. Hance Ellington   +15 more
wiley   +1 more source

Spatial patterns of mercury contamination and associated risk to piscivorous wading birds of the south central United States

Environmental Toxicology and Chemistry, 2018
Piscivorous birds are top predators in aquatic ecosystems and are vulnerable to mercury (Hg) exposure and associated adverse health effects. In some areas of North America, the health risk posed to piscivorous birds by Hg contamination has not been ...
Christopher T. Gerstle, R. Drenner, M. Chumchal   +2 more
semanticscholar   +1 more source

Gastric nematodes of Nile crocodiles, Crocodylus niloticus Laurenti, 1768, in the Okavango River, Botswana

Onderstepoort Journal of Veterinary Research, 2006
The ascaridoid nematodes Dujardinascaris madagascariensis Chabaud & Caballero, 1966, Dujardinascaris dujardini (Travassos, 1920), Gedoelstascaris vandenbrandeni (Baylis, 1929) Sprent, 1978 and Multicaecum agile (Wedl, 1861) Baylis, 1923 were ...
K. Junker, K. Wallace, A.J. Leslie, J. Boomker   +3 more
doaj   +1 more source

Continental scale metagenomics reveals Microcystis‐induced synchrony among aquatic taxa is exacerbated by trophic cascades

Ecography, EarlyView.
Harmful Microcystis proliferation severely threatens aquatic ecosystems globally, but its impacts on food‐web stability remain poorly understood. Here, we analyzed 1309 metagenomic samples from freshwater ecosystems across China to investigate how Microcystis abundance affects synchrony among taxa in multi‐trophic food webs (from bacteriophages to ...
Lemian Liu, Siqi Zhu, Xiaoqin Huang, Wenjia Hu, Lixiang Luo, Xiusong Pan, Jianfeng Chen   +6 more
wiley   +1 more source

Half a Century of Per‐ and Polyfluoroalkyl Substances in Northern Gannet Eggs: Impact of Regulations

Journal of Applied Toxicology, EarlyView.
ABSTRACT Per‐ and polyfluoroalkyl substances (PFAS), known as “forever chemicals”, are persistent organic pollutants that have been widely used in the industry across the globe for many decades. Their chemical stability, bioaccumulation, and toxicity pose major environmental and health risks. This study examines temporal trends in the concentrations of
Anaïs Fournier, Anaïs Kerric, Raphaël A. Lavoie   +2 more
wiley   +1 more source

Initial colonization by bryophytes and ferns during primary succession on Nishinoshima, Japan

Nordic Journal of Botany, EarlyView.
Volcanic islands that have experienced complete vegetation loss following recent eruptions provide rare opportunities to observe the earliest stages of ecosystem recovery. Nishinoshima, an oceanic island located approximately 1000 km south of mainland Japan, underwent major volcanic activity between 2013 and 2020, eradicating all pre‐existing ...
Shoki Murakami, Hideaki Mori, Shuntaro Kito, Kazuto Kawakami, Takashi Kamijo, Tomoyuki Nakano, Koji Takayama   +6 more
wiley   +1 more source

Piscivorous Bird Deterrent Device Based on a Direct Digital Synthesis of Acoustic Signals

Elektronika ir Elektrotechnika, 2021
This paper addresses the development of an acoustic deterrent device for the protection of fishponds and other objects against the unwanted presence of birds. The objective of the paper is not only providing of a deep analysis of available technologies for waveform synthesis and generation, but also building a theoretical base for the design and ...
Arturs Aboltins, Dmitrijs Pikulins, Juris Grizans, Sergejs Tjukovs   +3 more
openaire   +3 more sources