Results 101 to 110 of about 3,269 (236)
Invasive Species in Europe: Ecology, Status and Policy [PDF]
We tested the accuracy of an invasive aquatic plant risk assessment system in the United States that we modified from a system originally developed by New Zealand’s Biosecurity Program.
Geist, Juergen +3 more
core +1 more source
Effective dispersal of fern spore and the ecological relevance of zoochory
ABSTRACT The mechanisms of fern dispersal are under‐studied and there are few data to support the vectors assumed to drive patterns of sporophyte occurrence and speciation. Although wind is generally the fern spore dispersal vector described in the literature, there has always been competing evidence supporting alternate vectors.
James M. R. Brock
wiley +1 more source
Microhabitat use by the white-clawed crayfish in a Tuscan stream. [PDF]
Habitat modification, pollution, overfishing, poaching, competition from nonindigenous species, and diseases have led to the extinction in Europe of many populations of indigenous crayfish.
Bernardo J. M. +23 more
core +2 more sources
This study investigates the evolutionary and biogeographic history of the palmate newt (Lissotriton helveticus) by generating a genomic dataset from over 200 specimens across the entire distribution range of the species. ABSTRACT Quaternary glacial cycles have been key drivers of diversification for Holarctic species, promoting divergence, isolation ...
Bernat Burriel‐Carranza +13 more
wiley +1 more source
Status and management of noble crayfish Astacus astacus in Estonia [PDF]
Noble crayfish Astacus astacus (L.) is an indigenous and the only crayfish species in Estonia. It is potentially endangered by invasion of alien species, diseases and habitat deterioration but does not have legal protected status and is fished only for ...
T. Paaver, M. Hurt
doaj
Survey on fungal, parasites and epibionts infestation on the Astacus leptodactylus (Eschscholtz, 1823), in Aras Reservoir West Azarbaijan, Iran [PDF]
A total of 394 (255 males, 139 females) live freshwater crayfish Astacus leptodactylus from four stations of Aras reservoir in West Azarbaijan Province (North-Western Iran) were studied during the winter until early autumn of 2009 for the presence of ...
Afsharnasab, M. +5 more
core
The paradox of the Long-Term positive effects of a north american crayfish on a european community of predators [PDF]
Invasions of non-native species are one of the major causes of losses of native species. In some cases, however, non-natives may also have positive effects on native species.
Tablado, Zulima +3 more
core +1 more source
The American spiny-cheek crayfish, Orconectes limosus, was first introduced into European waters in 1890. The first literature record about the occurrence of O. limosus on the territory of the Czech Republic was published almost 100 years later – in 1989.
PETRUSEK A. +7 more
doaj +1 more source
Crayfish disease diagnostics : towards a Nordic standard [PDF]
Rapu on ollut jo kauan osa pohjoismaista kulttuuriperinnettä. Yli sata vuotta sitten Manner-Euroopasta levinnyt tuhoisa raputauti, rapurutto, hävitti kuitenkin suuren osan tuottavista jokirapukannoista. Monet rapuruton esiintymiseen ja diagnostiikkaan
core
Investigating the genetic and epigenetic basis of big biological questions with the new crayfish model Procambarus virginalis [PDF]
In the last 15 years considerable attempts have been undertaken to develop the obligately parthenogenetic marbled crayfish Procambarus virginalis as a new model in biology.
Vogt, Günter
core +1 more source

