Find research datasets worth reusing
Search datasets from major research repositories and use ShareScore to quickly assess how well each record supports discovery, access, and reuse.
113
datasets available to search
ShareScore release 0.9.0
Dataset results
113 results for “Ant ecology”
Landscape and habitat data for Tetramorium ant species from Cordonnier et al. 2019 Landscape Ecology
<p>This README accompanies the file "data_Cordonnier_LandEcol.txt"</p> <p>Associated publication : </p> <p>Multi-scale impacts of urbanization on species distribution within the genus <br> <em>Tetramorium </em>- Landscape Ecology<br> M. Cordonnier, C. Gibert, A. Bellec, B. Kaufmann, G. Escarguel</p> <p> <br> ********************************** CONTENTS ***********************************<br> The data are in table form with TABs as variables field delimiters so they can <br> be readily imported in any statistical package or spreadsheet program. Please, <br> contact me if you need the file formatted otherwise. </p> <p>This file includes a description of the variables.</p> <p>The individuals described in this file were identified to species and analyzed for climate variables in</p> <p>Cordonnier, M., Bellec, A., Dumet, A., Escarguel, G., & Kaufmann, B. (2019). <br> Range limits in sympatric cryptic species: a case study in Tetramorium pavement <br> ants (Hymenoptera: Formicidae) across a biogeographical boundary. Insect <br> Conservation and Diversity, 12(2), 109-120.<br> </p> <p>*******************************************************************************<br> Variable names and descriptions</p> <p>ID Sample name<br> X Longitude in WGS 84 (World Geodetic System 1984) decimal degrees rounded to 5 decimal places<br> Y Latitude in WGS 84 (World Geodetic System 1984) decimal degrees rounded to 5 decimal places<br> SZ Name of the sampling area sensu Cordonnier et al. (2019)<br> SP Species identification based on mtDNA COI gene<br> PI10 Percentage of impervious surfaces within a 10 m buffer around the sample<br> PI30 Percentage of impervious surfaces within a 30 m buffer around the sample<br> PI500 Percentage of impervious surfaces within a 500 m buffer around the sample<br> MH1 Presence / absence of full soil with vegetation <br> MH2 Presence / absence of pavement <br> MH3 Presence / absence of unstabilized material (sand. gravel. compacted soil <br> with pebbles or small rocks) <br> MH4 Presence / absence of wood or root <br> MH5 Presence / absence of litter (woodchips or dead leaves) <br> MH6 Presence / absence of curb <br> MH7 Presence / absence of building <br> MH8 Presence / absence of feature (p.ex. lamp post. elec. pole. large rock) <br> MH9 Presence / absence of ditch or strong slope</p> <p>********************************* CONTACT **********************************<br> Please contact me at:</p> <p>Marion Cordonnier<br> e-mail: marion.cordonnier@hotmail.com</p> <p>*******************************************************************************<br> </p>
Fig. 1 in Uzbekistan - The Alleged Native Range Of The Invasive Ant Lasius Neglectus (Hymenoptera, Formicidae): Geographical, Ecological And Biological Evidences
Fig. 1. Collection sites of Lasius neglectus in Uzbekistan (1–20) and Tajikistan (21). Note: numbering of collection sites as in table 1; the bold line encircles the assumed native range of L. neglectus.
Replication Data and Analyses for: J. Monsimet, S. Sjögersten, N.J. Sanders, M. Jonsson, J. Olofsson & M. Siewert, 2024. UAV data and deep learning: efficient tools to map the ecological footprint of ants mounds, Remote Sensing in Ecology and Conservation.
<p>This dataset corresponds to the article: <strong>"Jérémy Monsimet*¹, Sofie Sjögersten², Nathan J. Sanders³, Micael Jonsson¹, Johan Olofsson¹, Matthias Siewert¹, 2024. UAV data and deep learning: efficient tools to map the ecological footprint of ants mounds, <em>Remote Sensing in Ecology and Conservation</em>"</strong></p> <p>DOI: <a href="https://doi.org/10.1002/rse2.400" target="_blank" rel="nofollow noreferrer noopener">10.1002/rse2.400</a></p> <p>1 Department of Ecology and Environmental Science, Umeå University, Sweden<br>2 School of Biosciences, University of Nottingham, Loughborough, UK<br>3 Department of Ecology and Evolutionary Biology, University of Michigan, US</p> <p>The gitlab repository of this dataset is available at: <a href="https://gitlab.com/Monsimet/uav_ants_treeline/-/tree/main/">https://gitlab.com/Monsimet/uav_ants_treeline/-/tree/main/</a></p> <p>In this repository, you will find the analyses and results presented in the paper. In each folder, there is a html file that can be read after downloading locally the whole folder. You can either run the .qmd file used to produce the html file or walk through the html files (see the readme.md for more information).</p> <p>Paper abstract:</p> <p>High‐resolution unoccupied aerial vehicle (UAVs) data have alleviated the mismatch between the scale of ecological processes and the scale of remotely sensed data, while machine learning and deep learning methods allow new avenues for quantification in ecology. Ant nests play key roles in ecosystem functioning, yet their distribution and effects on entire landscapes remain poorly understood, in part because they and their mounds are too small for satellite remote sensing. This research maps the distribution and impact of ant mounds in a 20 ha treeline ecotone. We evaluate the detectability from UAV imagery using a deep learning model for object detection and different combinations of RGB, thermal and multispectral sensor data. We were able to detect ant mounds in all imagery using manual detection and deep learning. However, the highest precision rates were achieved by deep learning using RGB data which has the highest spatial resolution (1.9 cm) at comparable UAV flight height. While multispectral data were outperformed for detection, it allows for novel insights into the ecology of ants and their spatial impact on vegetation productivity using the normalized difference vegetation index. Scaling up, this suggests that ant mounds quantifiably impact vegetation productivity for up to 4% of our study area and up to 8% of the<em> Betula nana</em> vegetation communities, the vegetation type with the highest abundance of ant mounds. Therefore, they could have an overlooked role in nutrient‐limited tundra vegetation, and on the shrubification of this habitat. Further, we show the powerful combination UAV multi‐sensor data and deep learning for efficient ecological tracking and monitoring of mound‐building ants and their spatial impact.</p>
Fig. 3 in A small parasitoid of fire ants, Pseudacteon obtusitus (Diptera: Phoridae): native range ecology and laboratory rearing
Fig. 3. Frequency distribution of Solenopsis invicta head size from which Pseudacteon obtusitus emerged, sorted by gender and sample yr. Insert: frequency distribution of Pseudacteon obtusitus thoraces sorted by gender and sample yr.
Fig. 1 in A small parasitoid of fire ants, Pseudacteon obtusitus (Diptera: Phoridae): native range ecology and laboratory rearing
Fig. 1. Monthly phenology of Pseudacteon obtusitus across mo and yr at Corrientes Province, Argentina.
Fig. 2 in A small parasitoid of fire ants, Pseudacteon obtusitus (Diptera: Phoridae): native range ecology and laboratory rearing
Fig. 2. Relative percent abundance of Pseudacteon obtusitus categorized by the time of d (morning until 12:00 P.M., 12:00 to 3:00 P.M., afer 3:00 P.M.) and sample mo (Apr, May, Jun, Sep, Oct, Nov, Jan).
Figure 5 in Three ways to distinguish species: using behavioural, ecological, and molecular data to tell apart two closely related ants, Camponotus renggeri and Camponotus rufipes (Hymenoptera: Formicidae)
Figure 5. Box plots of Kimura two-parameter (K2P) distance of 672 bp cytochrome c oxidase subunit I sequences within and between Camponotus renggeri and Camponotus rufipes. Boxes indicate interquartile range (upper line, quartile 3; lower line, quartile 1). Horizontal lines with boxes indicate median and whiskers the minimum and the maximum values. Outliers are shown as individual circles.
Figure 4 in Three ways to distinguish species: using behavioural, ecological, and molecular data to tell apart two closely related ants, Camponotus renggeri and Camponotus rufipes (Hymenoptera: Formicidae)
Figure 4. Genetic structure analyses of Camponotus renggeri (yellow) and Camponotus rufipes (red) workers from Mogi- Guaçu (Brazil), using microsatellites. A, model-based assignment of individuals to the most likely number of clusters (K = 2) using STRUCTURE software. B, model-based assignment of individuals to different classes of hybrids or 'pure' species. Each individual is represented by a vertical line and the colours indicate the probability of the individual being assigned to a group in (A), or a hybrid or 'pure species' class in (B). C, scatterplot of the model-free principal coordinates analysis considering the two first principal coordinates (PCo1 and 2).
Figure 2 in Three ways to distinguish species: using behavioural, ecological, and molecular data to tell apart two closely related ants, Camponotus renggeri and Camponotus rufipes (Hymenoptera: Formicidae)
Figure 2. Main vegetation physiognomies of the cerrado reserve at Mogi-Guaçu, Brazil. Cerrado sensu stricto consists of a dense scrub of shrubs and trees and a fair amount of herbaceous vegetation, whereas the cerradão is a closed woodland with a reduced ground layer. Nests of Camponotus renggeri (N = 46) were found in cerrado sensu stricto (22%) and cerradão (78%), whereas Camponotus rufipes (N = 40) occurred only in cerrado sensu stricto. Drawing by L. Mota.
Figure 1 in Three ways to distinguish species: using behavioural, ecological, and molecular data to tell apart two closely related ants, Camponotus renggeri and Camponotus rufipes (Hymenoptera: Formicidae)
Figure 1. Workers of (A) Camponotus renggeri and (B) Camponotus rufipes. The two species are usually differentiated in the field by nuances in the integument colour (C. renggeri is shiny; C. rufipes is matte), and colour of the legs (yellowish in C. renggeri; reddish in C. rufipes). Photographs courtesy of L. Mota.
Figure 6 in Three ways to distinguish species: using behavioural, ecological, and molecular data to tell apart two closely related ants, Camponotus renggeri and Camponotus rufipes (Hymenoptera: Formicidae)
Figure 6. Analyses of the cytochrome c oxidase subunit I haplotypes of Camponotus renggeri (yellow) and Camponotus rufipes (red). A, neighbour-joining tree constructed with Kimura two-parameter distances between C. renggeri and C. rufipes with bootstrap support values based on 10 000 replications indicated on each branch. B, median-joining network amongst the obtained haplotypes. Values on the branches represent the numbers of mutational steps distinguishing the haplotypes, represented as circles whose areas are proportional to the number of individuals with that haplotype.
Figure 3 in Three ways to distinguish species: using behavioural, ecological, and molecular data to tell apart two closely related ants, Camponotus renggeri and Camponotus rufipes (Hymenoptera: Formicidae)
Figure 3. Frequency distribution of nest categories in Camponotus renggeri and Camponotus rufipes in the cerrado reserve at Mogi-Guaçu, Brazil. The species differed in the structure and building materials used for nesting.
Microsatellite genotype data from: Male-biased dispersal in a fungus-gardening ant symbiosis (Matthews et al, Ecology and Evolution)
<p>For nearly all organisms, dispersal is a fundamental life history trait that can shape their ecology and evolution. Variation in dispersal capabilities within a species exists and can influence population genetic structure and ecological interactions. In fungus-gardening (attine) ants, co-dispersal of ants and mutualistic fungi is crucial to the success of this obligate symbiosis. Female-biased dispersal (and gene flow) may be favored in attines because virgin queens carry the responsibility of dispersing the fungi, but a paucity of research has made this conclusion difficult. Here, we investigate dispersal of the fungus-gardening ant <i>Trachymyrmex septentrionalis</i> using a combination of maternally- (mitochondrial DNA) and biparentally-inherited (microsatellites) markers. We found three distinct, spatially isolated mitochondrial DNA haplotypes; two were found in the Florida panhandle and the other in the Florida peninsula. In contrast, biparental markers illustrated significant gene flow across this region and minimal spatial structure. The differential patterns uncovered from mitochondrial DNA and microsatellite markers suggest that most long-distance ant dispersal is male-biased and that females (and concomitantly the fungus) have more limited dispersal capabilities. Consequently, the limited female dispersal is likely an important bottleneck for the fungal symbiont. This bottleneck could slow fungal genetic diversification, which has significant implications for both ant hosts and fungal symbionts regarding population genetics, species distributions, adaptive responses to environmental change, and coevolutionary patterns.</p>
A large-scale assessment of ant diversity across the Brazilian Amazon Basin: integrating geographic, ecological, and morphological drivers of sampling bias
<p>Tropical ecosystems are often biodiversity hotspots, and invertebrates represent the main underrepresented component of diversity in large-scale analyses. This problem is partly related to the scarcity of data widely available to conduct these studies and the lack of systematic organization of knowledge about invertebrates' distributions in biodiversity hotspots. Here, we introduce and analyze a comprehensive data compilation of Amazonian ant diversity. Using records from 1817 to 2020 from both published and unpublished sources, we describe the diversity and distribution of ant species in the Brazilian Amazon Basin. Further, using high-definition images and data from taxonomic publications, we build a comprehensive database of morphological traits for the ant species that occur in the region. In total, we recorded 1,067 nominal species in the Brazilian Amazon Basin, with sampling locations strongly biased by access routes, urban centers, research institutions, and major infrastructure projects. Large areas where ant sampling is non-existent represent about 52% of the basin and are concentrated mainly in the North, Southeastern, and Western Brazilian Amazon. We found that distance to roads is the main driver of ant sampling in the Amazon. Contrary to our expectations, morphological traits had lower predictive power in predicting sample bias than purely geographic variables. However, when geographic predictors were controlled, habitat stratum and traits contribute to explain the remaining variance. More species were recorded in better-sampled areas, but species richness estimation models suggest that areas in South Amazonian edge forests are associated with especially high species richness. Our results represent the first trait-based, large-scale study for insects in Amazonian forests and a starting point for macroecological studies focusing on insect diversity in the Amazon Basin.</p>
Ecological diversification preceded geographical expansion during the evolutionary radiation of Cataglyphis desert ants
<p>Biological diversity often arises as organisms adapt to new ecological conditions (i.e. ecological opportunities) or colonise suitable areas (i.e. spatial opportunities). Cases of geographical expansion followed by local ecological divergence are well described; they result in clades comprising ecologically heterogeneous subclades. In contrast, nothing is known about evolutionary radiation events in which ecological opportunities preceded spatial spread. Here, we show that the desert ant genus <em>Cataglyphis</em> likely originated in open grassland habitats in the Middle East ~18 million years ago and became a taxon of diverse species specialising in prey of different masses. Around 9 million years ago, southern Europe and northern Africa experienced aridification and were colonised by <em>Cataglyphis</em>, which was preadapted to the harsh environmental conditions. The result was the rapid accumulation of species, and the appearance of local assemblages containing species from different lineages that still displayed ancestral foraging specialties. These findings highlight that, in <em>Cataglyphis</em>, ecological diversification happened before the genus geographically spread into newly arisen suitable habitats, resulting in a clade composed of ecologically homogeneous subclades.</p>
Data from: Underlying mechanisms and ecological context of variation in exploratory behavior of the Argentine ant, Linepithema humile
Uncovering how and why animals explore their environment is fundamental for understanding population dynamics, the spread of invasive species, species interactions, etc. In social animals, individuals within a group can vary in their exploratory behavior, and the behavioral composition of the group can determine its collective success. Workers of the invasive Argentine ant (Linepithema humile) exhibit individual variation in exploratory behavior, which affects the colony's collective nest selection behavior. Here, we examine the mechanisms underlying this behavioral variation in exploratory behavior and determine its implications for the ecology of this species. We first establish that individual variation in exploratory behavior is repeatable and consistent across situations. We then show a relationship between exploratory behavior and the expression of genes that have been previously linked with other behaviors in social insects. Specifically, we found a negative relationship between exploratory behavior and the expression of the foraging (Lhfor) gene. Finally, we determine how colonies allocate exploratory individuals in natural conditions. We found that ants from inside the nest are the least exploratory individuals, whereas workers on newly formed foraging trails are the most exploratory individuals. Furthermore, we found temporal differences throughout the year: in early-mid spring, when new resources emerge, workers are more exploratory than at the end of winter, potentially allowing the colony to find and exploit new resources. These findings reveal the importance of individual variation in behavior for the ecology of social animals.
Natural history and ecological effects on the establishment and fate of Florida carpenter ant cadavers infected by the parasitic-manipulator Ophiocordyceps camponoti-floridani
<p class="MsoNormal">1. <em>Ophiocordyceps</em> fungi manipulate the behavior of their ant hosts to produce a summit disease phenotype, thereby establishing infected ant cadavers onto vegetation at elevated positions suitable for fungal growth and transmission. Multiple environmental and ecological factors have been proposed to shape the timing, positioning, and outcome of these manipulations.</p> <p class="MsoNormal">2. We conducted a long-term field study of <em>Ophiocordyceps</em> <em>camponoti-floridani</em> infections of <em>Camponotus floridanus</em> ants – the Florida zombie ants. We propose and refine hypotheses on the factors that shape infection outcomes by tracking the occurrence of fungal growth from hundreds of ant cadavers. We modeled and report these data in relation to weather, light, vegetation, and attack by mycoparasites.</p> <p class="MsoNormal">3. We investigated environmental factors that could affect the occurrence and location of newly manipulated ant cadavers. New cadavers were positively correlated with epiphytic <em>Tillandsia </em>bromeliads, canopy openness, and weather conditions (an interactive effect of temperature, humidity, and precipitation) with an increased occurrence during the sub-tropical summer. We further suggest that incident light at the individual cadaver level may reflect microhabitat choice by manipulated ants or selective pressure on cadaver maintenance for conditions improving fungal survival.</p> <p class="MsoNormal">4. We also sought to connect fungal fitness to environmental conditions. Continued fungal development of reproductive structures and putative transmission increased with moist weather conditions (interaction of humidity and precipitation) and canopy openness, while being reduced by attack by mycoparasites. Moreover, under the most open canopy conditions, we found an atypical <em>Ophiocordyceps</em> growth morphology that could represent a plastic response to conditions influenced by high light levels.</p> <p class="MsoNormal">5. Taken together, we explore general trends and the effects of various ecological conditions on host and parasite disease outcomes in the Florida zombie ant system. These insights from the field can be used to inform experimental laboratory setups that directly test the effects of biotic and abiotic factors on fungus-ant interactions or aim to uncover underlying molecular mechanisms.</p>
Data from: Drought-induced relocation of ant colonies and its consequences for the long-term spatial ecology of a population under stress
<ol> <li>Maintaining a central refuge such as a nest or burrow can offer protection against environmental stressors but comes at the expense of the capacity to disperse to new locations. This trade-off with mobility can be detrimental when environmental conditions become adverse for extended periods, necessitating animals to relocate in order to track shifting niche envelopes.</li> <li>Long-lived ant colonies that invest in the construction of large nests are especially susceptible to changing environmental conditions. The Australian meat ant, <em>Iridomyrmex</em> <em>purpureus</em>, build large terrestrial nests at sites that balance shade and solar exposure.</li> <li>Long-term study of a population of meat ants showed low nest turnover and a stable spatial distribution of nests across typical rainfall years. With the onset of drought, a dramatic surge in the production of new nests occurred through a process of budding that far exceeded historic trends. This appears to have allowed colonies to relocate nests into areas with more favourable microclimate conditions in a strategy reminiscent of the production of runners in stressed plants. The consequence has also been the packing of nests into a narrow habitable zone that has resulted in an apparent increase in competition among large rival colonies. Following the break in drought and the thinning of some nests through abandonment, competition has progressively eased in later years.</li> <li>The surge in nest budding triggered by acute environmental stress in this population offers a possible strategy for long-lived colonies to effectively migrate across the landscape. With changes in environmental conditions becoming more frequent and severe with the climate crisis, any strategy available to central place foragers to track windows of preferred conditions are likely to become increasingly important.</li> </ol>
Natural history and ecological effects on the establishment and fate of Florida carpenter ant cadavers infected by the parasitic-manipulator Ophiocordyceps camponoti-floridani
Open the record for dataset details and reuse information.
Spine and dine: A key defensive trait promotes ecological success in spiny ants
Open the record for dataset details and reuse information.
ScienceDex guides
Understand access before you commit
These curated guides explain access requirements, typical timelines, costs, and reuse considerations for widely used research datasets.
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.