Results 61 to 70 of about 3,131 (210)

Economic incentives contribute little to reducing agricultural damage from invasive non‐native species: evidence from raccoon management in Hokkaido, Japan

Pest Management Science, Volume 82, Issue 3, Page 2588-2594, March 2026.
This study reveals the nonsignificant effects of economic incentives reducing crop damage by raccoons. Our results also show that while these incentives increase the number of captured raccoons, the additional captures fail to result in measurable reductions in agricultural damage. Abstract BACKGROUND An economic incentive scheme is utilized to enhance
Kota Mameno, Takaaki Suzuki, Saya Yamaguchi, Mayumi Ueno, Takahiro Kubo   +4 more
wiley   +1 more source

Analysis of chitinase expression in the crayfish plague fungus Aphanomyces astaci [PDF]

Diseases of Aquatic Organisms, 2002
Chitinase, as determined by enzymatic activity in the growth medium and by transcription of the chitinase gene AaChi1, is expressed at a high level during vegetative growth of the crayfish pathogen Aphanomyces astaci and expression is not further stimulated by chitin. Expression is not detected in zoospores and it does not increase to high levels until
M Gunnar, Andersson, Lage, Cerenius
openaire   +2 more sources

Dispersal and coexistence of two non-native crayfish species (Pacifastacus leniusculus and Procambarus clarkii ) in NE Portugal over a 10-year period [PDF]

, 2011
NE Portugal is one of the most isolated and low populated regions of Western Europe. Recently, two American crayfish species reached this area: signal crayfish Pacifastacus leniusculus coming from Spain and red swamp crayfish Procambarus clarkii in its ...
Bernardo, J.M., Bruxelas, S., Costa, A.M., Teixeira, Amílcar   +3 more
core   +4 more sources

Two indigenous European crayfish under threat – how can we retain them in aquatic ecosystems for the future?

Knowledge and Management of Aquatic Ecosystems, 2011
Indigenous crayfish species (ICS) are under threat in Europe; due to competition from invasive non-indigenous crayfish species (NICS) from crayfish plague, which is carried by introduced American crayfish, and habitat degradation.
Peay S., Füreder L.
doaj   +1 more source

First record of the stone crayfish in the Romanian lowlands

Knowledge and Management of Aquatic Ecosystems, 2021
The stone crayfish is a native European freshwater species with significant population declines caused by anthropogenic pressure onto its habitats, climate change and spreading of non-indigenous invasive crayfish and their pathogens (e.g., Aphanomyces ...
Groza Marius-Ioan, Cupșa Diana, Lovrenčić Leona, Maguire Ivana   +3 more
doaj   +1 more source

Burrowing behaviour of signal crayfish, Pacifastacus leniusculus (Dana), in the River Great Ouse, England [PDF]

, 1994
Observations were made on crayfish burrows in five locations on the Great Ouse River. The burrow densities and the relative abundance of crayfish were observed.
Guan, Rui-Zhang
core  

Devouring the Invaders: The Racial‐Ecological Politics of the Chinese Crayfish Trade in Kenya

American Anthropologist, Volume 128, Issue 1, Page 183-194, March 2026.
ABSTRACT This article examines entanglements of ecology, race, and foodways at Lake Naivasha in Kenya. Nonnative Louisiana red swamp crayfish (Procambarus clarkii), first introduced to Kenya in the 1960s, were once viewed as invasive but are now sought after as a delicacy among Kenya's Chinese community.
Amanda Kaminsky
wiley   +1 more source

Resilience of riparian spiders to floods: evidence from a mesocosm study

Insect Conservation and Diversity, Volume 19, Issue 2, Page 393-403, March 2026.
Mesocosm experiment to assess the impact of flood duration on flood‐naïve riparian spider communities. In May, spider richness decreased with flood duration, while in June, flood duration increased abundance, richness and promoted wetland specialists. Flood‐naïve riparian spiders unexpectedly appear highly resilient to flooding.
Stephane Mutel, Martin H. Entling, Caroline Breithaupt, Gemma Burgazzi, Franziska Fiolka, Franziska Middendorf, Collins Ogbeide, Mirco Bundschuh, Ralf Schulz, Alessandro Manfrin   +9 more
wiley   +1 more source

The Prevalence of Crayfish Plague (Aphanomyces Astaci) in Two Signal Crayfish (Pacifastacus Leniusculus) Populations in Finland [PDF]

Journal of Crustacean Biology, 2000
Abstract The occurrence of dark brown melanized spots indicative of the presence of crayfish plague fungus (Aphanomyces astaci Schikora) was investigated in three Finnish lakes inhabited by the introduced American signal crayfish (Pacifastacus leniusculus Dana) in 1979, 1983, 1985–1988, 1990, 1993, and 1994. The crayfish were caught with crayfish traps
Viljo Nylund, Kai Westman
openaire   +1 more source

Redclaw Crayfish: Challenge or Resource? Voices of Fishers in Zambia

Aquatic Conservation: Marine and Freshwater Ecosystems, Volume 36, Issue 2, February 2026.
ABSTRACT Invasive species severely threaten biodiversity, ecosystem stability and local livelihoods, especially in vulnerable areas. Therefore, understanding community perceptions is vital for creating effective and inclusive management strategies. This study investigated perceived environmental and economic impacts of the invasive, Redclaw crayfish ...
Patience Bwalya, Henry Bwalya, Given Mbewe, Ipaalo Ndhlovu, Joyce Mbewe, Hong Yang, Hyun S. Gweon, Moses Chibesa, Chisomo J. Phiri, Mwiinga Kapila, Africa Muzungaire, Stanley Phiri, Christopher Mulwanda, Malambo Muloongo, Brian P. Munganga, Joseph Mphande, Sahya Maulu, Oliver J. Hasimuna   +17 more
wiley   +1 more source