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143 results for “Species trend”
Data from: Accounting for long-term directional trends on year-to-year synchrony in species fluctuations
What determines the stability of communities under environmental fluctuations remains one of the most debated questions in ecology. Scholars generally agree that the similarity in year-to-year fluctuations between species is an important determinant of this stability. Concordant fluctuations in species abundances through time (synchrony) decrease stability while discordance in fluctuations (anti-synchrony) should stabilize communities. Researchers have interpreted the community-wide degree of synchrony in temporal fluctuations as the outcome of different processes. However, existing synchrony measures depend not only on year-to-year species fluctuations, but also on long-term directional trends in species composition, for example due to land-use or climate change. The neglected effect of directional trends in species composition could cause an increase in synchrony that is not due to year-to-year fluctuations, as species that simultaneously increase (or decrease) in abundance over time will appear correlated, even if they fluctuate discordantly from year to year. The opposite pattern is also conceivable, where different species show contrasting trends in their abundances, thus overestimating year-to-year anti-synchrony. Therefore, trends in species composition may limit our understanding of potential ecological mechanisms behind synchrony between species. We propose two easily implementable solutions, with corresponding R functions, for testing and accounting for the effect of trends in species composition on overall synchrony. The first approach is based on computing synchrony over the residuals of fitted species trends over time. The second approach, applicable to already existing indices, is based on three-terms local variance, i.e. computing variance over three-years-long, movable windows. We demonstrate these methods using simulations and data from real plant communities under long-term directional changes, discussing when one approach can be preferred. We show that accounting for long-term temporal trends is both necessary and that separation of effect of trends and year-to-year fluctuation provides a better understanding of ecological mechanisms and their connections with ecological theory.
FIGURE 5 in Trends in new species discovery of Orthoptera (Insecta) from Southeast Asia
FIGURE 5. Number of type specimens found in depositories from the 22 different countries.
Data from: 'Species traits to guide moth conservation in anthropogenic regions: a multi-species approach using distribution trends in Flanders'
<p>These data are related to the investigation of species traits as a guidance for moth conservation in the highly anthropogenic European region of Flanders (northern part of Belgium) based on Multi-Species Change Indices (MSCIs).</p> <p><strong>Abstract</strong></p> <ol> <li>Insects appear to decline rapidly in recent decades. This so-called sixth mass extinction garnered significant media attention, raising public awareness.</li> <li>Macro-moths—a species-rich and ecologically diverse insect group—face severe declines, particularly in urbanised and intensively farmed areas.</li> <li>Flanders is a highly anthropogenic region, serving as a case study where the impact on macro-moths of stressors like intensive agriculture, industrialization and urbanization has been quantified through a recently compiled Red List. Here, for 717 macro-moth species, we calculated relative changes in distribution area between a reference period (1980-2012) and the subsequent period (2013-2022). By correlating these species-specific trends with ten key ecological and life-history traits, we calculated more general Multi-Species Change Indices (MSCIs).</li> <li>These MSCIs showed that species associated with wet biotopes and heathlands declined on average by 20-25%, while (sub)urban species increased by more than 60%. Species feeding on lichens or mosses increased by 31%, while grass-feeding species decreased by 20%. Both very small (+34%) and very large species (+15%) increased, whereas medium-sized species decreased by 5%. Monophagous (+17%), migrant (+88%), and colour-invariable species (+5%) increased, while colour-variable species decreased (-8%). Finally, Holarctic (-21%) and Palearctic species (-5%) decreased, while Mediterranean (+27%) and Western-Palearctic species (+9%) increased.</li> <li>Our trait-based approach identifies key threats and mitigation strategies for moths in anthropogenic regions, offering evidence-based insights for crafting efficient management recommendations and informed conservation policies to safeguard moth communities.</li> </ol>
Trends in weather conditions favor generalist over specialist species in rear-edge alpine bird communities
<p>Using the community of six passerine species breeding in the alpine zone of the Cantabrian mountains (NW Iberian Peninsula), we sought to document the changes in bird abundance across the elevational gradient during the last decade, evaluate the relationship between bird abundance and local climatic conditions (i.e. weather conditions), and discuss the mechanisms by which these conditions might be mediating the observed abundance trends in a global warming context. We estimated bird abundance at the home range level using point count transects and distance sampling during the breeding season, and fitted generalized linear mixed models to describe their temporal trends across the elevational gradient. We used a structural equation modeling approach to estimate the direct, indirect and total effects of weather and temporal variables, while considering the correlations and causal relationships among them and with the elevational gradient.</p>
Figure 4 in Trapping Records of Fruit Fly Pest Species (Diptera: Tephritidae) on Oahu (Hawaiian Islands): Analysis of Spatial Population Trends
Figure 4. Mean captures per trap per day of C. capitata in trimedlure traps (2006–2008) at each trapping site on Oahu.
Figure 3 in Trapping Records of Fruit Fly Pest Species (Diptera: Tephritidae) on Oahu (Hawaiian Islands): Analysis of Spatial Population Trends
Figure 3. Mean captures per trap per day of B. dorsalis in methyl eugenol traps (2006–2008) at each trapping site on Oahu.
Figure 2 in Trapping Records of Fruit Fly Pest Species (Diptera: Tephritidae) on Oahu (Hawaiian Islands): Analysis of Spatial Population Trends
Figure 2. Mean captures per trap per day of B. cucurbitae in cue-lure traps (2006–2008) at each trapping site on Oahu.
Data from: Biodiversity change is uncoupled from species richness trends: consequences for conservation and monitoring
1. Global concern about human impact on biological diversity has triggered an intense research agenda on drivers and consequences of biodiversity change in parallel with international policy seeking to conserve biodiversity and associated ecosystem functions. Quantifying the trends in biodiversity is far from trivial, however, as recently documented by meta-analyses which report little if any net change of local species richness through time. 2. Here, we summarize several limitations of species richness as a metric of biodiversity change and show that the expectation of directional species richness trends under changing conditions is invalid. Instead, we illustrate how a set of species turnover indices provide more information content regarding temporal trends in biodiversity, as they reflect how dominance and identity shift in communities over time. 3. We apply these metrics to three monitoring data sets representing different ecosystem types. In all data sets, nearly complete species turnover occurred, but this was disconnected from any species richness trends. Instead, turnover was strongly influenced by changes in species presence (identities) and dominance (abundances). We further show that these metrics can detect phases of strong compositional shifts in monitoring data and thus identify a different aspect of biodiversity change decoupled from species richness. 4. Synthesis and application: Temporal trends in species richness are insufficient to capture key changes in biodiversity in changing environments. In fact, reductions in environmental quality can lead to transient increases in species richness if immigration or extinction have different temporal dynamics. Thus, biodiversity monitoring programs need to go beyond analyses of trends in richness in favour of more meaningful assessments of biodiversity change.01-Jun-2017
Figure 2 from: Eshaghi B, Kiabi BH, Kashani GM (2015) The agnarid terrestrial isopods (Isopoda, Oniscidea, Agnaridae) of the province of Qazvin, Iran, with a description of a new species. In: Taiti S, Hornung E, Štrus J, Bouchon D (Eds) Trends in Terrestrial Isopod Biology. ZooKeys 515: 59–66. https://doi.org/10.3897/zookeys.515.9125
Figure 2 - Protracheoniscus sarii sp. n., male, paratype. A pleopod endopodite I B pleopod exopodite I C pleopod II D pleopod exopodite III E pleopod exopodite IV F pleopod exopodite V. Scale = 0.1 mm
Figure 1 from: Eshaghi B, Kiabi BH, Kashani GM (2015) The agnarid terrestrial isopods (Isopoda, Oniscidea, Agnaridae) of the province of Qazvin, Iran, with a description of a new species. In: Taiti S, Hornung E, Štrus J, Bouchon D (Eds) Trends in Terrestrial Isopod Biology. ZooKeys 515: 59–66. https://doi.org/10.3897/zookeys.515.9125
Figure 1 - Protracheoniscus sarii sp. n., male, paratype. A body outline with position of noduli laterales B cephalon and first pereonite C telson and uropods D antenna E pereopod 1 F pereopod 7. Scale = 1 mm.
Figure 7 from: Taiti S, Wynne JJ (2015) The terrestrial Isopoda (Crustacea, Oniscidea) of Rapa Nui (Easter Island), with descriptions of two new species. In: Taiti S, Hornung E, Štrus J, Bouchon D (Eds) Trends in Terrestrial Isopod Biology. ZooKeys 515: 27–49. https://doi.org/10.3897/zookeys.515.9477
Figure 7 - Hawaiioscia rapui sp. n., ♂ paratype: A pereopod 1 B pereopod 7 C genital papilla and pleopod 1 D pleopod 2 E pleopod 3 exopodite F pleopod 4 exopodite G pleopod 5 exopodite.
Figure 5 from: Taiti S, Wynne JJ (2015) The terrestrial Isopoda (Crustacea, Oniscidea) of Rapa Nui (Easter Island), with descriptions of two new species. In: Taiti S, Hornung E, Štrus J, Bouchon D (Eds) Trends in Terrestrial Isopod Biology. ZooKeys 515: 27–49. https://doi.org/10.3897/zookeys.515.9477
Figure 5 - Hawaiioscia rapui sp. n., ♂ holotype: A adult specimen in dorsal view. ♀ paratype: B dorsal scale-seta C co-ordinates of noduli laterales D cephalon in dorsal view E cephalon in frontal view F cephalon in lateral view G pereonites with noduli laterales H pleonite 5, telson and uropods I antennula.
Figure 6 from: Taiti S, Wynne JJ (2015) The terrestrial Isopoda (Crustacea, Oniscidea) of Rapa Nui (Easter Island), with descriptions of two new species. In: Taiti S, Hornung E, Štrus J, Bouchon D (Eds) Trends in Terrestrial Isopod Biology. ZooKeys 515: 27–49. https://doi.org/10.3897/zookeys.515.9477
Figure 6 - Hawaiioscia rapui sp. n., ♀ paratype: A antenna B left mandible C right mandible D maxillula E maxilla F maxilliped.
Figure 2 from: Taiti S, Wynne JJ (2015) The terrestrial Isopoda (Crustacea, Oniscidea) of Rapa Nui (Easter Island), with descriptions of two new species. In: Taiti S, Hornung E, Štrus J, Bouchon D (Eds) Trends in Terrestrial Isopod Biology. ZooKeys 515: 27–49. https://doi.org/10.3897/zookeys.515.9477
Figure 2 - Styloniscus manuvaka sp. n., ♀ paratype: A adult specimen in dorsal view B dorsal scale-seta C cephalon in dorsal view D cephalon in frontal view E pleonite 5, telson and uropods F antennula G antenna.
Figure 1 from: Taiti S, Wynne JJ (2015) The terrestrial Isopoda (Crustacea, Oniscidea) of Rapa Nui (Easter Island), with descriptions of two new species. In: Taiti S, Hornung E, Štrus J, Bouchon D (Eds) Trends in Terrestrial Isopod Biology. ZooKeys 515: 27–49. https://doi.org/10.3897/zookeys.515.9477
Figure 1 - Styloniscus manuvaka sp. n.: A ♀ paratype in dorsal view. Hawaiioscia rapui sp. n.: B ♀ paratype in dorsal view.
Figure 4 from: Taiti S, Wynne JJ (2015) The terrestrial Isopoda (Crustacea, Oniscidea) of Rapa Nui (Easter Island), with descriptions of two new species. In: Taiti S, Hornung E, Štrus J, Bouchon D (Eds) Trends in Terrestrial Isopod Biology. ZooKeys 515: 27–49. https://doi.org/10.3897/zookeys.515.9477
Figure 4 - Styloniscus manuvaka sp. n., ♂ paratype: A pereopod 1 B pereopod 6 C pereopod 7 D genital papilla and pleopod 1 E pleopod 2.
Figure 3 from: Taiti S, Wynne JJ (2015) The terrestrial Isopoda (Crustacea, Oniscidea) of Rapa Nui (Easter Island), with descriptions of two new species. In: Taiti S, Hornung E, Štrus J, Bouchon D (Eds) Trends in Terrestrial Isopod Biology. ZooKeys 515: 27–49. https://doi.org/10.3897/zookeys.515.9477
Figure 3 - Styloniscus manuvaka sp. n., ♀ paratype: A left mandible B right mandible C maxillula D maxilla E maxilliped.
Supplementary material 2 from: Reyes-Puig C, Mancero E (2022) Beyond the species name: an analysis of publication trends and biases in taxonomic descriptions of rainfrogs (Amphibia, Strabomantidae, Pristimantis). ZooKeys 1134: 73-100. https://doi.org/10.3897/zookeys.1134.91348
Complete translation of the manuscript
Supplementary material 1 from: Reyes-Puig C, Mancero E (2022) Beyond the species name: an analysis of publication trends and biases in taxonomic descriptions of rainfrogs (Amphibia, Strabomantidae, Pristimantis). ZooKeys 1134: 73-100. https://doi.org/10.3897/zookeys.1134.91348
Complete database of Pristimantis descriptions
Supplementary material 4 from: Petrosyan V, Osipov F, Feniova I, Dergunova N, Warshavsky A, Khlyap L, Dzialowski A (2023) The TOP-100 most dangerous invasive alien species in Northern Eurasia: invasion trends and species distribution modelling. NeoBiota 82: 23-56. https://doi.org/10.3897/neobiota.82.96282
Geographic partitioning of the SOR
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Allen Brain Atlas
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Annotated Behaviour and Observability Dataset (ABODe)
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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.