Find research datasets worth reusing

opencc-zeroDec 2006View details →

FIG. 1 in New records of alien decapods (Crustacea) from the Mediterranean coast of Turkey, with a description of a new palaemonid species

FIG. 1. — Map showing sampling sites, Kaş Peninsula, southwestern coast of Turkey.

opencc-zeroOct 2021View details →

Trait-habitat associations explain novel bird assemblages mixing native and alien species across New-Zealand landscapes

Aim: Species introductions have reshaped island faunas for the last 200 years, often threatening native biodiversity. Approximately equal numbers of native and alien species currently co-occur in the New Zealand avifauna, but they show distinct habitat use. Antagonistic interactions, habitat affinities and legacies of introduction history may concur to explain their segregation along habitat gradients. To investigate these processes, we explored how habitat, ecological traits and introduction history relate with the current composition of bird assemblages. Location: New Zealand Taxon: Birds Methods: We analysed 917 bird point counts spread along habitat and elevation gradients in the Canterbury region, South Island, and related 10 ecological traits to landscape composition using a three-table ordination method known as 'RLQ analysis', accounting for spatial autocorrelation and phylogeny. We tested whether alien species' positions in the RLQ were related to proxies of introduction history. Results: Eighteen endemic, 11 native and 19 alien species were distributed along a gradient from forest to open-habitat assemblages, in relation to foraging mode, nesting site and body size. A second gradient segregated species between native and exotic forests according to territoriality, sedentarity and diet. Traits accounted for the separation of native and alien bird species in forests, but not in open habitats. Phylogenetic signals emerged from the separation of native and alien species by forest type, and spatial structures suggested a landscape-level, rather than regional or local determinism. These correlations were independent of introduction history, although open-habitat assemblages tended to host alien species introduced later in time. Main conclusions: Habitat type and resource availability explain the spatial partitioning of New Zealand bird assemblages between native and alien species more consistently than competitive exclusion. We conclude that trait-mediated ecological differences among species have likely played a predominant role in species' segregation among landscapes, while maintaining endemic bird assemblages in native forests.

opencc-by-4.0Feb 2023View details →

Data from: How science communications can help build societal perceptions of invasive alien species and their impacts on the environment

In this study, we investigated the reported beneficial aspects of the invasive alien plant species (IAPS) and argued that, over time and space, the detrimental impacts of the IAS might endanger sustainable livelihoods. The data set contains the following files: Data_S1.xlsx: The file contains details of 154 literature reports. From each paper, we extracted IAPS names (both as reported and standardized), taxonomic information (family and taxon rank), year, country, the scale of observation, and reported beneficial impacts. The beneficial impacts were further categorized into 13 use categories at TDWG (Taxonomic Databases Working Group) Level-1 states (in binary format - 1 indicates the IAPS use and 0 indicates not in use for the individual category). The Metadata_S1.pdf file contains detailed information on preparing literature records for data extraction, the data extraction process, and data organization.

Fig. 8 in Two Asian freshwater snails newly introduced into South Africa and an analysis of alien species reported to date

Fig. 8. Shell of Biomphalaria glabrata collected in Durban in the 1980s (photos: C. Appleton).

Fig. 5 in Two Asian freshwater snails newly introduced into South Africa and an analysis of alien species reported to date

Fig. 5. Shell of G. chinensis from Amatikulu (photo: N. Miranda). Scale bar = 1 mm.

Fig. 1 in Two Asian freshwater snails newly introduced into South Africa and an analysis of alien species reported to date

Fig. 1. Radix rubiginosa from Amatikulu (photos: H. Madsen).

Fig. 2 in Two Asian freshwater snails newly introduced into South Africa and an analysis of alien species reported to date

Fig. 2. Shells of Radix rubiginosa from Amatikulu (photos: N. Miranda). Scale bars = 5 mm.

opencc-by-4.0Apr 2023View details →

A dataset on alien vascular plant species in Japan

This dataset contains a list of 1,753 alien vascular plant taxa (i.e., species, infraspecific taxa and hybrids; hereafter species for simplicity) found in Japan and data on the year of first record and pathways of introduction for many, if not all, of these species. The dataset was created during the study documented in the following article: Egawa C. & Koyama A. (2023) Temporal trends in the accumulation of alien vascular plant species through intentional and unintentional introductions in Japan. NeoBiota 83: 179-196. https://doi.org/10.3897/neobiota.83.101416 Procedures for creating the dataset are detailed in the article. Concise explanation of the dataset can be found in the README sheet in the file.

opencc-by-nd-4.0Jun 2023View details →

Figure 4 in A new alien species in Brazil: Heliophanus hamifer Simon, 1886

Figure 4. iNaturalist records of Heliophanus hamifer. 1, Male dwelling on grass, by @laisacraupp (used with permission). 2, Male over a thorny herbaceous stem, by @gussoni (CC-BY-NC). 3, Male jumping over low herbaceous leaves, by @euqueromorango (used with permission). 4, Female under an herb leaf, by @chatonov (CC-BY-NC). 5, Female over a dry herbaceous stem, by @isismedri (CC-BY-NC). 6, Same, in detail. The arrow points to the bare patch related to stridulation. 7, Female preying on a fly, by @euqueromorango (used with permission). 8, Male preying on a midge over a wall, by @daniel_schelesky (used with permission). 9, Male displaying courtship behavior to a female over a plant vase (used with permission).

opencc-by-nd-4.0Jun 2023View details →

Figure 2 in A new alien species in Brazil: Heliophanus hamifer Simon, 1886

Figure 2. Habitus in life of Heliophanus hamifer. 1, Dorsal view of the male (UFMG 27922). 2, Same, frontal view. 3, Frontal view of the female (UFMG 27922). 4, Same, dorsal view. 5, Male over millimetric graph paper (UFMG 29234). 6, Female over millimetric graph paper (UFMG 29242). Photographs 1-4: Rafael Mariante (used with permission).

opencc-by-nd-4.0Jun 2023View details →

Figure 1 in A new alien species in Brazil: Heliophanus hamifer Simon, 1886

Figure 1. Known distribution records of Heliophanus hamifer. 1, iNaturalist records (purple circles) and from UFMG collection (red triangles). 2, African records from the literature and collections, with coordinates (white circles) and imprecise continental country records (question marks) (WCS, 2023; GBIF, 2023). Map imaging by ArcGIS 10.3.

opencc-zeroJul 2023View details →

The world's 100 worst invasive alien insect species

<ol> <li>While there has been great interest in species characteristics that promote invasiveness, still little is known about the characteristics that distinguish invasive from non-invasive insects. Using a database on the naturalized distributions of alien insects and expert opinions about their impacts, we identified the world's 100 worst invasive insect species.</li> <li>By comparing species characteristics reported in the literature using a meta-analysis, between the 100 worst invasive species and related non-invasive species, we found that invasive insects overall have more pathways of introduction, occur in more habitats, have higher fecundities, higher voltinism, more genes, shorted lifespans and faster development from egg to adult. Some of the differences in species characteristics are related to propagule pressures, life-histories and biotic interactions, conditional on whether the non-invasive species compared is known to be naturalized somewhere, whether the invasive species is globally distributed, and the climatic region of the species.</li> <li> Synthesis and applications: We show for the first time, using a multi-species comparative approach, that invasive insects differ in several characteristics from related non-invasive insects. Our results show that invasive species, such as Spodoptera frugiperda, typically are habitat generalists with a high fecundity, a short lifespan, and fast development, whereas the importance of female body size and number of enemies are context dependent. Our study can guide and improve existing screening tools for assessing the invasion potential of alien insects.</li> </ol>

opencc-by-4.0May 2023View details →

Permits issued in respect of South Africa's National Environmental Management: Biodiversity Act's Alien and Invasive Species Regulations over the period October 2014–December 2022

Data based on records of permits issued by the South African Department of Forestry, Fisheries, and the Environment (DFFE) to conduct activities on listed invasive species restricted under the NEM:BA A&IS Regulations of 2014 This is based on the file <Copy of Official AIS Permit Register (31 Aug 2019).xlsx> with updates to 2020 based on the updates in the file <AIS Permit Register Updated to 21 January 2021.xlsx>  and updates to Dec 2022 based on the file <AIS Permit register updated up to 31 Decenber 2022.xlsx> Compiled for the purposes of the reporting process  "The Status of Biological Invasions and their Management in South Africa", see http://iasreport.sanbi.org.za/ for more details.  Can access the latest report on Zenodo http://dx.doi.org/10.5281/zenodo.3947613 and the latest species list associated with the report via http://dx.doi.org/10.5281/zenodo.3947659 For details of how this was constructed see the relevant workflow in the status report process. Where appropriate the rationale for issuing a permit is as per the wording of the regulations and lists of 2020 (see below for the full citation) Each row represents a permit for a  particular species for a particular activity.  Permit numbers can cover multiple taxa The original data-set has details of the applicant and their contact numbers, who the permit was handled by, and the method by and date on which the permit was sent to the permit holder, these have been redacted Note there can be multiple permits issued to the same permit holder for the same species for the same purposes with the same start and end date In cases where two permits were issued to the same applicant and one of which was for research, both were deemed for research even if it was not specified as such For enquiries contact: invasives@sanbi.org.za or IAS.report.SANBI@gmail.com Suggested citation (noting that in most cases it will be more appropriate to reference the Department responsible itself): SANBI (2023) Permits issued in respect of South Africa's National Environmental Management: Biodiversity Act's Alien and Invasive Species Regulations over the period October 2014 – December 2022. version  20230809. Zenodo.  https://dx.doi.org/10.5281/zenodo.8229321

opencc-zeroAug 2023View details →

Testing the links between bird diversity, alien species and disturbance within a human-modified landscape

Introduced alien species are associated with lower taxonomic, functional and phylogenetic diversity of native communities and negative impacts on ecosystem functioning. This is particularly evident in habitats where human disturbance may favour alien species, posing an additional stressor on native communities. Following the community resistance hypothesis (higher diversity promotes higher resistance to invasion), we predicted: i) higher taxonomic, functional and phylogenetic diversity (TD, FD and PD respectively) in non-invaded bird communities (i.e. no alien bird species); and, ii) higher diversity and resistance to invasion in less human-disturbed areas. We surveyed bird communities in a modified Mediterranean landscape subject to varying levels of human disturbance. We tested whether TD, FD and PD were significantly different between non-invaded and invaded bird communities, and assessed the effect of land classes (forest, agriculture, urban), landscape composition and heterogeneity on these metrics. We found that non-invaded communities retained higher TD and FD, but not PD, than invaded communities. Alien birds occupied marginal niches in invaded communities, and did not fully compensate for the taxonomic and functional diversity loss caused by the absence of native species. These results were consistent across different land classes, suggesting weak environmental filtering of communities. Generally, less human-modified and more heterogeneous areas supported higher TD regardless of the presence of alien species. FD and PD of invaded communities decreased with increases in human-modified areas, whereas non-invaded communities were not affected. Our results suggest that even within a human-modified landscape, invaded community diversity is more affected by, and thus has a lower resilience to, disturbance. Restoring and protecting natural habitats within human-modified landscapes is likely to increase the resilience of native species.

opencc-zeroSep 2023View details →

Introduction pathways and evolutionary mechanisms of the spread of alien species of Lolium on sandy coasts in Japan

1. Estimating the role of specific processes in the spread of alien species necessitates the determination of introduction pathways and source populations of invaded areas. Alien grasses in the genus Lolium that have become widely invasive in Japan provide provides a unique opportunity to estimate the expansion process through a direct comparison between source and naturalised populations because the introduction pathways, contaminants in grain commodities and commercial cultivars for fodder crops or revegetation materials are well-known. Therefore, by directly comparing between source and naturalised populations, we estimated the introduction pathways and whether adaptative evolution occurred in Lolium species on sandy coasts in Japan. 2. Lolium individuals sampled from naturalised populations in croplands, seaports and sandy coasts were compared with those from two introduction sources for morphological and genetic variations based on a genome-wide single nucleotide polymorphism analysis and a common garden experiment. Furthermore, we conducted a reciprocal sowing experiment between a cropland and sandy coast. 3. Populations naturalized in croplands were closely related to the cultivars, whereas those naturalized in seaports and sandy coasts were associated with contaminants. This pattern is common in western Japan. Therefore, these results indicate that the cropland and sandy coast populations are derived from cultivars and contaminants, respectively. The reciprocal transplant experiment clearly demonstrated the home site advantage; populations derived from croplands yielded higher floret numbers than those derived from other habitats at the cropland site; however, such an advantage was not detected with the coastal site population. Sandy coast populations had higher survival rates than those from croplands at coastal sites. Port populations exhibited a similar tendency as sandy coast populations, indicating that contaminants may be originally adapted to salty and dry environments, such as that in sandy coasts. 4. Synthesis. We demonstrated that two congeneric species with different ecological characteristics were introduced through multiple introduction pathways and spread into different habitats. A direct comparison between source and naturalised populations can greatly advance our understanding of the patterns and processes of biological invasions.