Results 51 to 60 of about 7,869 (211)

Habitat heterogeneity influences avian feeding guild composition in urban landscapes: evidence from Bhubaneswar, India

Ecological Processes, 2021
Background Habitat heterogeneity clearly distinguished in terms of availability of food and habitat resources and landscape features (natural or human-modified) play a crucial role in the avian species composition and population structure.
Bibhu Prasad Panda, B. Anjan Kumar Prusty, Biswajit Panda, Abanti Pradhan, Siba Prasad Parida   +4 more
doaj   +1 more source

Impacts of piscivorous birds on salmonid populations and game fisheries in Scotland: a review [PDF]

Wildlife Biology, 2008
Abstract The Scottish populations of salmonids are important both ecologically and economically. Game fisheries for Atlantic salmon Salmo salar, sea trout Salmo trutta trutta and brown trout Salmo trutta fari are all highly acclaimed and generate substantial levels of income for Scotland, but many populations are in decline and ...
Harris, Catriona, Calladine, John R, Wernham, Chris, Park, Kirsty   +3 more
openaire   +2 more sources

Seasonal variation in the diet of Lontra longicaudis in the Paraná River basin, Argentina [PDF]

, 2014
We studied the Neotropical otter ( Lontra longicaudis ) seasonal diet variations in the middle Paran á River valley, in central-northern Argentina, at the southern limit of its global range.
Eberhardt, María Ayelen Teresita, Gutierrez, Marìa Florencia, Pautasso, Andrés A., Raimondi, Vanina Belén, Vezzosi, Raúl Ignacio   +4 more
core   +1 more source

Archaeological and Biogeochemical Investigation of Past Human Relationships With Now‐Endangered Fish Species: Lake Sturgeon and American Eel in Southern Ontario, Canada

International Journal of Osteoarchaeology, EarlyView.
ABSTRACT This paper explores the historical ecology and biogeography of two fish species that are currently endangered in the North American Great Lakes region, that were of great importance to the Indigenous people in the region, and that are the focus of ongoing conservation efforts on the part of descendant communities: lake sturgeon (Acipenser ...
Suzanne Needs‐Howarth, Alicia L. Hawkins, Trevor J. Orchard, Eric J. Guiry, Louis Lesage   +4 more
wiley   +1 more source

Fish Exhibit Distinct Fluorochemical and δ15N Isotopic Signatures in the St. Lawrence River Impacted by Municipal Wastewater Effluents

Frontiers in Environmental Science, 2022
We examined the influence of Montreal wastewater treatment plant (WWTP) effluents on two top predators, Walleye (Sander vitreus) and Sauger (Sander canadensis), with a focus on δ15N isotopic signatures and per- and polyfluoroalkyl substances (PFAS ...
Hermann A. Kaboré, Ken Goeury, Mélanie Desrosiers, Sung Vo Duy, Jinxia Liu, Gilbert Cabana, Gabriel Munoz, Sébastien Sauvé   +7 more
doaj   +1 more source

Impact of estuarine fronts on the dispersal of piscivorous birds in the German Bight [PDF]

Marine Ecology Progress Series, 2001
ABSTRACT: Survey data on seabird distribution at sea, hydrographic data and optical satellite datacollected for the German Bight were used to analyse the variability of the distribution of wintering red-throated diver and black-throated diver Gavia stellata / arctica in relation to oscillations of the JutlandCoastal Current (JCC) and associated surface
H Skov, E Prins
openaire   +1 more source

Parasites and non-fish predators of tilapia with particular reference to the sustainable management of fisheries of Lake Kainji Nigeria [PDF]

, 2001
The fisheries of Lake Kainji, Nigeria, experienced a boom year following impoundment, then decline post impoundment and now is in a period of stabilisation of the fish resources. Several reasons have been advanced on factors responsible for these changes,
Obiekezie, A., Okaeme, A.N., Olufemi, B.E.   +2 more
core  

The occurrence of metacercariae of Petasiger (Digenea: Echinostomatidae) in an unusual site, within the lateral line scales of cyprinid fishes [PDF]

, 2015
This is now an open access journal. http://orcid.org/0000-0002-2908-491XThis is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use,
Csaba Székely, David I. Gibson, Gábor Cech, Juhász Lajos (1956-) (biológia-földrajz szakos tanár), Kálmán Molnár, Lajos Juhász, Melitta Papp, Norbert Tóth, Petra Deák-Paulus   +8 more
core   +1 more source

The effects of seasonality and parasitism on diet and habitat selection in the common periwinkle

Oikos, EarlyView.
The common periwinkle Littorina littorea is an ecologically important grazer, known for its strong influence on algal communities and its role in structuring ecosystems. It serves as the first intermediate host for several trematode species in the Baltic Sea, especially for the fluke Cryptocotyle lingua.
Friederike Gronwald, Claudia Bommarito, Dakeishla M. Díaz‐Morales, Alessandro Manfrin, Cindy Martinez Reyes, Milen Nachev, Bernd Sures, Florian Weinberger   +7 more
wiley   +1 more source

Behavior of Nannopterum brasilianus (Gmelin, 1789) (Suliformes: Phalacrocoracidae) in an urban park in the municipality of Uberlândia, Minas Gerais State

Biotemas, 2019
The modification of landscapes by anthropic action, mainly due to urbanization, exerts strong pressure on birds. Public parks and other green areas offer favorable conditions for birds in cities throughout the year. Nannopterum brasilianus (Gmelin, 1789)
Dayana Nascimento Carvalho, Liliane Martins de Oliveira, Oswaldo Marçal Júnior   +2 more
doaj   +1 more source