Michael Piper results 28
· Newest (Page 1/2, per page 25)
Author: Michael Piper ×Clear All Filters
Search Results
Assessment of two minimally invasive methodologies for sex identification in the European eel, Anguilla anguillaNARA Subscribed
Sex is an important driver of variation in behaviour, ecology and physiology. Sex identification in the Critically Endangered European eel ( Anguilla anguilla ) currently requires fish sacrifice, or the use of morphological differences such as body length, which can be inaccurate in certain habitats and at intermediate body lengths. Non‐lethal tools for accurate sex identification in this species are therefore required. Here,...
Improving eel pass efficiency: The role of crest shape and water flow in facilitating upstream juvenile eel migrationNARA Subscribed
River connectivity is crucial for the European eel ( Anguilla anguilla ) to complete its complex life cycle, which is vital for upstream recruitment to the declining population of this critically endangered catadromous fish. Eel passes, or ladders, are frequently installed on riverine structures, such as dams and weirs, to mitigate barrier effects and restore connectivity for upstream migrating eel. Efforts to optimise the eff...
Rapid Ocean Warming Drives Sexually Divergent Habitat Use in a Threatened Predatory Marine EctothermNARA Subscribed
Climate change poses one of the greatest threats to marine ecosystems worldwide, altering physical, chemical, and biological processes at unprecedented rates. Severe impacts on marine species and habitats have been extensively documented, with shifts in phenology, spatial distribution, and migratory behaviour increasingly pervasive. However, there is a lack of species‐specific data examining responses and adaptation to rapid w...
The Hippo signalling cascade is an evolutionarily conserved pathway critical for the development of numerous organ systems and is required for the development of many parts of the mammalian nervous system, including the cerebellum. The Hippo pathway converges, via the nuclear YAP/TAZ co-transcription factors, on transcription factors of the TEA Domain (TEAD) family (TEAD1-4) and promotes the expression of pro-proliferative gen...
Site‐Specific Nutrient Data Reveal the Importance of Soils in Driving the Mycorrhizal Make‐Up of Woody Vegetation WorldwideNARA Subscribed
Aim Arbuscular mycorrhizas (AM) and ectomycorrhizas (ECM) have different impacts on nutrient cycling, carbon storage, community dynamics and enhancement of photosynthesis by rising CO 2 . Recent global analyses have concluded that patterns of AM/ECM dominance in forests worldwide are shaped by climate, with soil nutrients contributing negligible additional explanatory power. However, their reliance on nutrient data from GIS su...
Animals within social groups respond to costs and benefits of sociality by adjusting the proportion of time they spend in close proximity to other individuals in the group (cohesion). Variation in cohesion between individuals, in turn, shapes important group‐level processes such as subgroup formation and fission–fusion dynamics. Although critical to animal sociality, a comprehensive understanding of the factors influencing coh...
Nitrogen Deposition Weakens Soil Carbon Control of Nitrogen Dynamics Across the Contiguous United StatesNARA Subscribed
Anthropogenic nitrogen (N) deposition is unequally distributed across space and time, with inputs to terrestrial ecosystems impacted by industry regulations and variations in human activity. Soil carbon (C) content normally controls the fraction of mineralized N that is nitrified ( ƒ nitrified ), affecting N bioavailability for plants and microbes. However, it is unknown whether N deposition has modified the relationships amon...
Anguillid eels are near globally distributed catadromous fishes with marine spawning areas and inshore and inland growth areas in both lotic (rivers, estuaries) and lentic (lakes, ponds, lagoons) water bodies. As predators, anguillid eels play an important ecological role in both marine and freshwater systems, and several species are harvested commercially for food. However, some of the more widely distributed species have und...
Anguillid eels are found globally in fresh, transitional and saline waters and have played an important role in human life for centuries. The population status of several species is now of significant concern. The threats to populations include direct exploitation at different life stages, blockages to migratory routes by dams and other structures, changes in river basin management that impact habitat carrying capacity and sui...
Nuclear Factor One Transcription Factors in CNS DevelopmentNARA Subscribed
Poster abstractsNARA Subscribed
Patch Occupancy and Potential Metapopulation Dynamics of Three Forest Mammals in Fragmented Afromontane Forest in South AfricaNARA Subscribed
We investigated the persistence of three medium‐sized (2–9 kg), rare forest mammals in the fragmented mist‐belt Podocarpus forests of the midlands of KwaZulu‐Natal Province, South Africa. We recorded patch occupancy of blue duiker ( Philantomba monticola ), tree hyrax ( Dendrohyrax arboreus ), and samango monkey ( Cercopithecus mitis labiatus ) in 199 forest patches. Their rarity is ascribed to the fragmentation and destructio...