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372 results for “functional group”
Data from: Allometric scaling laws linking biomass and rooting depth vary across ontogeny and functional groups in tropical dry forest lianas and trees
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Sensitivity of different grass functional groups to honey mesquite
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Data from: Plant community responses to long-term fertilization: changes in functional group abundance drive changes in species richness
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Data from: Pollinator functional group abundance and floral heterogeneity in an agroecological context affect mating patterns in a self-incompatible wild plant
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Data from: Soil and ground-dwelling arthropod diversity on green roofs: Functional groups are strongly influenced by substrate depth and plant community
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Data from: Hyperspectral imaging predicts differences in carbon and nitrogen status among representative biocrust functional groups of the Colorado Plateau
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Data from: Patterns and drivers of pollen co-transport network structure vary across pollinator functional groups
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Resprouting ability differs among plant functional groups along a soil acidification gradient in a meadow: A rhizosphere perspective
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Data from: Shifts in functional group community diversity of threatened mesic forests with changing fire regimes
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Seaweed functional diversity revisited: confronting traditional groups with quantitative traits
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A multivariate approach reveals diversity of ontogenetic niche shifts across taxonomic and functional groups
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Data from: Resilience of seed production to a severe El Niño‐induced drought across functional groups and dispersal types
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Functional groups of wild bees respond differently to faba bean (Vicia faba L.) cultivation at landscape scale
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Data from: Functional vertebrate group diversity, tick-borne pathogen ecology and genetic diversity
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Data from: Intraspecific plant chemodiversity at plot level has contrasting effects on arthropod functional groups
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Organic compounds drive growth in phytoplankton taxa from different functional groups
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Arthropod D-Vac Sampling:Simplification functional groups
This experiment was designed to manipulate grassland functional groups to test for effects on ecosystem functioning and higher trophic levels.
Convergence, parallelism, and function of extreme parietal callus in diverse groups of Cenozoic Gastropoda
We use SEM imaging to examine the shell microstructure of fossil and living species in five families of caenogastropods (Strombidae, Volutidae, Olividae, Pseudolividae, and Ancillariidae) to determine whether parallel or convergent evolution is responsible for the development of a unique caenogastropod trait, the extreme parietal callus. The extreme parietal callus is defined as a substantial thickening of both the spire callus and the callus on the ventral shell surface such that it covers 50% or more of the surface. Caenogastropods as a whole construct EPC convergently, using a variety of low-density, poorly-organized microstructures that are otherwise uncommon in caenogastropod non-callus shell construction. Within clades, however, we see evidence for parallelism in decreased regulation in both the shell and callus microstructure. Low density and poorly-ordered microstructure -- such as used for EPC -- uses less organic scaffolding and is less energetically expensive than normal shell microstructure. This suggests EPC functions to rapidly and inexpensively increase shell thickness and overall body size. Tests of functional ecology suggest that EPC might function both to defend against crushing predation through increased body size and dissipation of forces while aiding in shell orientation of highly-mobile gastropods. These interpretations hinge on the current phylogenetic placement of caenogastropod families, emphasizing the essential contribution of phylogeny when interpreting homoplasy.
Data from: The global biogeography of lizard functional groups
Aim - Understanding the mechanisms determining species richness is a primary goal of biogeography. Richness patterns of sub-groups within a taxon are usually assumed to be driven by similar processes. However, if richness of distinct ecological strategies respond differently to the same processes, inferences made for an entire taxon may be misleading. We deconstruct the global lizard assemblage into functional groups and examine the congruence among richness patterns between them. We further examine the species richness – functional richness relationship to elucidate the way functional diversity contributes to the overall species richness patterns. Location – Global. Methods – Using comprehensive biological trait databases we classified the global lizard assemblage into ecological strategies based on body size, diet, activity times and microhabitat preferences, using Archetypal Analysis. We then examined spatial gradients in the richness of each strategy at the one-degree grid cell, biomes and realm scales. Results – We found that lizards can best be characterized by seven 'ecological strategies': scansorial, terrestrial, nocturnal, herbivorous, fossorial, large and semi-aquatic. There are large differences among the global richness patterns of these strategies. While the major richness hotspot for lizards in general is in Australia, several strategies exhibit highest richness in the Amazon Basin. Importantly, the global maximum in lizard species richness is achieved at intermediate values of functional diversity and increasing functional diversity further result in a shallow decline of species richness. Main conclusions - The deconstruction of the global lizard assemblage along multiple ecological axes offers a new way to conceive lizard diversity patterns. It suggests that local lizard richness mostly increases when species belonging to particular ecological strategies become hyper-diverse there, and not because more ecological types are present in the most species rich localities. Thus maximum richness and maximum ecological diversity do not overlap. These results shed light on the global richness pattern of lizards, and highlight previously unidentified spatial patterns in understudied functional groups.
Contrasting responses of different functional groups stabilise community responses to a dominant shrub under global change
<p>1. Changes in precipitation regimes and nitrogen deposition levels due to global change are altering terrestrial ecosystems worldwide. Most attempts at understanding how biotic interactions affect plant species and community responses to global change have focused on biotic interactions measured at the community-level. However, these approaches ignore that communities include functionally dissimilar species that might respond differently to changes in the effects of dominant neighbours along environmental gradients. We test the hypothesis that plant species with differences in functional traits may exhibit contrasting interactions with a dominant shrub species within a single community, thereby stabilizing community-level responses to the effects of global change.</p> <p>2. We manipulated water and nitrogen applications in a semi-arid dune community in northern China, quantified the biomass of herbaceous species occurring below the dominant shrub, <i>Artemisia ordosica</i>, and in adjacent open patches (without the shrub), and measured herbaceous species height and leaf dry matter content. The effects of <i>A. ordosica</i> were quantified at the species, group, and community levels using the relative interaction index (<i>RII</i>). Redundancy analysis was performed on species traits and the <i>RII</i> values to assess the relationships between functional differences in species and plant-plant interactions. Species were then grouped using a cluster analysis and the <i>RII</i> values were recalculated at the group level.</p> <p>3. The redundancy analysis showed that species height and leaf dry matter content were significantly correlated to the changes in species' responses to the effect of <i>A. ordosica</i> along treatments. The four groups of species identified by the cluster analysis showed contrasting variations in competitive or facilitative responses depending on species traits and environmental treatments. However, the interactions measured at the group level balanced the community-level responses, as we found no significant changes in the effects of <i>A. ordosica</i> along treatments for community biomass, richness, and functional diversity indices.</p> <p>4. Synthesis. Our findings indicate that species with different functional strategies within a community exhibit contrasting responses to a dominant shrub along environmental gradients. These contrasting changes in plant-plant interactions of functionally different species may balance the responses of community-level metrics. This suggests that functional differences between species groups and the balance of plant-plant interactions stabilize community responses to global change.</p>
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Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.