Results 61 to 70 of about 1,924 (184)

Mercury distribution in the great cormorant (Phalacrocorax carbo) from the Krogulna ponds and Nysa Kłodzka River (Poland)

open access: yesVeterinární Medicína, 2023
Mercury belongs among the highly hazardous substances present in the environment and represents a great health risk for many animals including predatory and piscivorous birds.
K Novotna Kruzikova   +6 more
doaj   +1 more source

The influence of a cooling water system on waterbird habitat use in a coastal environment

open access: yesIbis, Volume 168, Issue 3, Page 1148-1158, July 2026.
This study investigated the impact of a cooling water system at a nuclear power plant in northern Europe on coastal waterbird habitat use. In winter, the cooling water system provided preferential areas for waterbirds with warm productive waters, and, more importantly, with ice‐free areas.
Andreas C. Bryhn   +2 more
wiley   +1 more source

The Effect of Piscivorous Birds on Fish Farm IHOR Park, Crna Mlaka [PDF]

open access: yes, 2018
U diplomskom radu prikazan je utjecaj ribojednih ptica na ribnjačarstvo IHOR PARK, Crna Mlaka. Ribnjačarstvo IHOR PARK, Crna Mlaka je ornitološki rezervat i ramsarsko područje.
Šantić, Vedran
core  

Birds in Kurigram district of Bangladesh

open access: yesJournal of Threatened Taxa, 2009
A study of the birds in the area adjacent to the Dharala and Brahmaputra rivers in Kurigram District, Bangladesh, was conducted between November 2000 and February 2002.
S.I. Khan, H. Naher
doaj   +1 more source

The impacts of biological invasions

open access: yesBiological Reviews, Volume 101, Issue 3, Page 1255-1310, June 2026.
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   +42 more
wiley   +1 more source

First report of albinism in the South American catfish Imparfinis mirini (Siluriformes: Heptapteridae)

open access: yesRevista Mexicana de Biodiversidad, 2017
Albinism is a genetic condition caused by an autosomal recessive gene that affects normal pigmentation in animals. In Neotropical freshwater fish fauna, albinism cases are extremely rare, with only 14 species recorded among more than 6,000 described ...
Pedro S. Manoel   +2 more
doaj   +1 more source

Beyond mammals: the evolution of chewing and other forms of oropharyngeal food processing in vertebrates

open access: yesBiological Reviews, Volume 101, Issue 3, Page 1406-1462, June 2026.
ABSTRACT Oropharyngeal food processing exhibits a remarkable diversity among vertebrates, reflecting the evolution of specialised ‘processing centres’ associated with the mandibular, hyoid, and branchial arches. Although studies have detailed various food‐processing strategies and mechanisms across vertebrates, a coherent and comprehensive terminology ...
Daniel Schwarz   +6 more
wiley   +1 more source

Aspects of population dynamics and feeding by piscivorous birds in the intermittently open Riet River estuary, Eastern Cape, South Africa

open access: yes, 2011
Aspects of the population dynamics and feeding activity of piscivorous birds in the small (c. 5 ha) intermittently open Riet River estuary, on the south-eastern coastline of South Africa, were investigated monthly from August 2005 to July 2006.
Blake, Justin D   +2 more
core   +1 more source

Can manipulative parasites modify host‐mediated trophic effects? Experimental evidence from Schistocephalus solidus and three‐spined sticklebacks

open access: yesFunctional Ecology, Volume 40, Issue 6, Page 1603-1618, June 2026.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Parasites can alter host traits, thereby reshaping host interactions and modifying density‐ and trait‐mediated effects in trophic cascades. But despite increasing research in parasite ecology, the cascading effects of parasitism from individual hosts to population and ...
Maja Drakula   +8 more
wiley   +1 more source

The occurrence of Contracaecum sp. larvae (Nematoda : Anisakidae) in the catfishClarias gariepinus (Burchell) from Lake Chivero, Zimbabwe

open access: yesOnderstepoort Journal of Veterinary Research, 2004
Clarias gariepinus were collected from Lake Chivero, Zimbabwe, and examined for nematode parasites from November 2000 to May 2002. Of the 202 specimens collected, 42.6 % were infected with third-stage larvae of Contracaecum sp. in the body cavity. The
M. Barson
doaj   +1 more source

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