Results 41 to 50 of about 141,246 (258)

The impacts of biological invasions

Biological Reviews, EarlyView.
ABSTRACT The Anthropocene is characterised by a continuous human‐mediated reshuffling of the distributions of species globally. Both intentional and unintentional introductions have resulted in numerous species being translocated beyond their native ranges, often leading to their establishment and subsequent spread – a process referred to as biological
Phillip J. Haubrock, Teun Everts, Neil Angelo S. Abreo, Jamie Bojko, Victor Deklerck, James W. E. Dickey, Ana Clara S. Franco, Emili García‐Berthou, Stelios Katsanevakis, Natalia I. Kirichenko, Stefano Mammola, Martin A. Nuñez, Ben Parker, Riccardo Scalera, Ismael Soto, Diederik Strubbe, Ali Serhan Tarkan, Lorenzo Vilizzi, Tim Adriaens, Paride Balzani, Dagmara Błońska, Elizabeta Briski, Rein Brys, Amy L. Burgess, James E. Byers, Carlos Cano‐Barbacil, Giuseppe Castaldelli, Jaimie T.A. Dick, Victoria Dominguez Almela, Romina D. Dimarco, Margarita Florencio, Antonín Kouba, Melina Kourantidou, Irmak Kurtul, Irene Martín‐Forés, Olivier Morissette, Julian D. Olden, Bruno E. Soares, Jakub Truszkowski, Hugo Verreycken, Marc Kenis, Ronaldo Sousa, J. Robert Britton   +42 more
wiley   +1 more source

Differences in early developmental rate and yolk conversion efficiency in offspring of trout with alternative life histories [PDF]

, 2016
Partial migration, in which some individuals of a population migrate while other individuals remain resident, is generally associated with ontogenetic shifts to better feeding areas or as a response to environmental instability, but its underlying ...
Abbott, Allen, Bachman, Berghe, Berthold, Braun, Brockelman, Brodersen, Burton, Burton, Chapman, Cutts, Cutts, Dodson, Dziminski, Eek, Ege, Einum, Elliott, Fleming, Fleming, Forseth, Grayson, Gross, Imre, Jonsson, Jonsson, Jonsson, Kamler, Killen, Kinnison, Leeuwen, Metcalfe, Monaghan, Morinville, Mousseau, Nakano, O'Neal, Olofsson, Olsson, Olsson, Olsson, Paez, Pakkasmaa, Pulido, Quinn, R Core Team, Reid, Reznick, Roff, Rollinson, Rollinson, Rosenfeld, Régnier, Sandell, Skoglund, Sloman, Steffensen, Stevens, Taborsky, Taylor, Taylor, Thorpe, Wysujack   +63 more
core   +1 more source

Lipid correction of hydrogen stable isotope ratios in fish

Limnology and Oceanography: Methods, EarlyView.
Abstract Lipids are known to affect stable isotope ratio of organisms, especially δ13C values, and simple arithmetic lipid‐correction procedures have been developed based on the carbon to nitrogen ratio (C : N) that is a proxy for lipid content. Equivalent issues will likely arise with the increasing use of hydrogen isotopes in ecology, but as yet no ...
Kang Wang, Mikko Kiljunen, Jos Schilder, Heikki Hämäläinen, Kimmo K. Kahilainen, Roger I. Jones   +5 more
wiley   +1 more source

Food resources and trophic relationships of brown, rainbow trout and european grayling in different habitats of Shypit river of the Transcarpathian region

Ribogospodarsʹka Nauka Ukraïni, 2016
Purpose. To study food resources, feeding conditions and trophic relationships of the brown trout (Salmo trutta morpha fario), rainbow trout (Oncorhynchus mykiss), and European grayling (Thymallus thymallus) in a Transcarpatioan river.
S. Kruzhylina, O. Didenko, I. Velykopolsky   +2 more
doaj   +1 more source

Tetracapsuloides bryosalmonae infection affects the expression of genes involved in cellular signal transduction and iron metabolism in the kidney of the brown trout Salmo trutta [PDF]

, 2015
Tetracapsuloides bryosalmonae is an enigmatic endoparasite which causes proliferative kidney disease in various species of salmonids in Europe and North America. The life cycle of the European strain of T.
Gokhlesh Kumar, Mansour El-Matbouli, Simon Menanteau-Ledouble, Subhodeep Sarker   +3 more
core   +1 more source

Mass-Marking Rainbow Trout and Brown Trout Fingerlings with Oxytetracycline

Journal of Freshwater Ecology, 2005
ABSTRACT We immersed fingerling rainbow trout (Oncorhynchus mykiss) and brown trout (Salmo trutta) in a 500-mg/L solution of oxytetracycline (OTC) for 6 h to determine marking efficacy. The technique marked 100% and 92% of rainbow trout and brown trout otoliths, respectively.
Jonathan R. Meerbeeka, Phillip W. Bettoli   +1 more
openaire   +1 more source

Bioclimatic, demographic and anthropogenic correlates of grizzly bear activity patterns in the Greater Yellowstone Ecosystem

Oikos, EarlyView.
Plasticity of diel activity rhythms may be a key element for adaptations of wildlife populations to changing environmental conditions. In the last decades, grizzly bears Ursus arctos in the Greater Yellowstone Ecosystem (GYE) have experienced notable environmental fluctuations, including changes in availability of food sources and severe droughts ...
Aurora Donatelli, Mark A. Haroldson, Justin G. Clapp, Paolo Ciucci, Frank T. van Manen   +4 more
wiley   +1 more source

Temporal changes in the dietary niche of sympatric seals provides insight into the role of competition in population declines

Oikos, EarlyView.
Competition theory suggests that interspecific prey competition can result in changes to the dietary niche, but obtaining timeseries of data from sympatric species experiencing temporal variation in competition is challenging. Scotland is an important area for two species of seals, but over the past 20 years, populations of harbour seals Phoca vitulina
Izzy Langley, Philip S. Hammond, Paul M. Thompson, Graham J. Pierce, Lindsay J. Wilson, Ailsa J. Hall, Gordon D. Hastie, Debbie J. F. Russell   +7 more
wiley   +1 more source

Linking landscape characteristics, streamwater acidity and brown trout (Salmo trutta) distributions in a boreal stream network [PDF]

, 2007
Perturbations of stream ecosystems are often mediated by the terrestrial watershed, making the understanding of linkages between watersheds and streams essential.
Buffam, Ishi
core  

Secondary Predation on the Horsehair Worm \u3ci\u3eGordius Robustus\u3c/i\u3e (Nematomorpha: Gordiida) [PDF]

, 2018
The gut contents of a brown trout (Salmo trutta) included horsehair worms (Gordius robustus, Nematomorpha: Gordiida) emerging from a camel cricket (Ceuthophilus sp., Orthoptera: Gryllacrididae).
Cochran, Philip A
core   +2 more sources