Results 51 to 60 of about 4,472 (223)
The invasive signal crayfish (Pacifastacus leniusculus), a species of high concern in European freshwaters, represents a substantial threat to native crayfish species and freshwater ecosystems.
Milan Danilović +3 more
doaj +1 more source
SHELTER COMPETITION BETWEEN TWO INVASIVE CRAYFISH SPECIES: A LABORATORY STUDY
Alien crayfishes represent a common threat to aquatic ecosystems. Their spread in Europe is leading to more frequent contacts between different invasive species populations. Shelter can be an important factor in the resulting interactions.
ALONSO F., MARTÍNEZ R.
doaj +1 more source
The Role of Proprioceptive Signals in the Crayfish Escape Circuit [PDF]
Abstract A single proprioceptor in the tailfan of the crayfish, Procambarus clarkii (Girard), innervated by only twelve sensory neurones encodes the position and the direction and velocity of movement of the exopodite relative to the endopodite. Most of the sensory neurones project to, and terminate in, the terminal abdominal ganglion where they form a
Philip L. Newland +2 more
openaire +1 more source
The impacts of biological invasions
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
Non-consumptive effects of native, alien and invasive alien crayfish on damselfly egg life history and carry-over effects on larval physiology [PDF]
Invasive alien (IA) predators pose significant threats to native ecosystems, often leading to profound impacts on prey species through both direct and non-consumptive effects (NCE). This study focused on the NCE of predator-induced stress from one native
Szymon Sniegula +5 more
doaj +3 more sources
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
SPECIES OF BRANCHIOBDELLIDAE (ANNELIDA) ON FRESHWATER CRAYFISH IN SOUTH TYROL (NORTHERN ITALY)
Twenty-eight freshwater crayfish were collected from 8 streams and one small lake in the province of South Tyrol (North Italy) from autumn 1999 to spring 2001, in order to investigate the presence of branchiobdellidans.
OBERKOFLER B. +6 more
doaj +1 more source
The ‘Pritchard Trap’: A novel quantitative survey method for crayfish
As crayfish invasions continue to threaten native freshwater biota, a detailed understanding of crayfish distribution and population structure becomes imperative. Nonetheless, most current survey methods provide inadequate demographic data.
Eleri G. Pritchard +6 more
doaj +1 more source
Geological processes shaping freshwater biodiversity: a synthesis of global evidence
ABSTRACT Recent genomic data highlight the key roles of geological processes in shaping the diversification and biogeography of freshwater lineages. Specifically, physical processes such as tectonic uplift, erosion, glaciation, lake formation, and sea‐level fluctuation contribute extensively to the evolution of biotic diversity within and among ...
Jonathan M. Waters +3 more
wiley +1 more source
The mycobiome of a successful crayfish invader and its changes along the environmental gradient
Background The microbiome plays an important role in biological invasions, since it affects various interactions between host and environment. However, most studies focus on the bacteriome, insufficiently addressing other components of the microbiome ...
Paula Dragičević +3 more
doaj +1 more source

