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opencc-by-4.0Oct 2023View details →

Figure 13 in The Tabanidae (Diptera) of the Greek islands and Cyprus: An annotated checklist with remarks on ecology, zoogeography, and new records on the East Mediterranean fauna

Figure 13. Map of the East Mediterranean islands and the neighboring territories considered in the study.

opencc-by-4.0Oct 2023View details →

Figures 1–4 in The Tabanidae (Diptera) of the Greek islands and Cyprus: An annotated checklist with remarks on ecology, zoogeography, and new records on the East Mediterranean fauna

Figures 1–4. Adults of Tabanidae, dorsal view. 1. Atylotus agrestis. 2. Tabanus gratus. 3. Tabanus taeniola. 4. Tabanus sufis. Scale bar – 5 mm

FIG. 7. — Dendrograms resulting from Q in Micropaleontological parameters as proxies of late Miocene surface water properties and paleoclimate in Gavdos Island, eastern Mediterranean

FIG. 7. — Dendrograms resulting from Q-mode cluster analysis and the assemblages identified in each section.

FIG. 5 in Micropaleontological parameters as proxies of late Miocene surface water properties and paleoclimate in Gavdos Island, eastern Mediterranean

FIG. 5. — Relative frequency curves of the planktonic foraminifera identified in Bo Section. Refer to Figure 2 for the explanation of the lithostratigraphical column.

FIG. 3 in Micropaleontological parameters as proxies of late Miocene surface water properties and paleoclimate in Gavdos Island, eastern Mediterranean

FIG. 3. — Relative frequency curves of the planktonic foraminifera identified in Ag. Giannis Section. Refer to Figure 2 for the explanation of the lithostratigraphical column.

FIG. 2 in Micropaleontological parameters as proxies of late Miocene surface water properties and paleoclimate in Gavdos Island, eastern Mediterranean

FIG. 2. — Lithostratigraphical columns of the Ag. Giannis, Potamos and Bo sections, Gavdos Island, Greece.

FIG. 4 in Micropaleontological parameters as proxies of late Miocene surface water properties and paleoclimate in Gavdos Island, eastern Mediterranean

FIG. 4. — Relative frequency curves of the planktonic foraminifera identified in Potamos Section. Refer to Figure 2 for the explanation of the lithostratigraphical column.

publicMay 2024View details →

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MEDIS: spatial data for Mediterranean islands

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opencc-zeroDec 2021View details →

FIG. 13 in Bryozoan faunas at the Tortonian-Messinian transition. A palaeoenvironmental case study from Crete Island, eastern Mediterranean

FIG. 13. — Bathymetric reconstruction and correlations between sections.

FIG. 9 in Micropaleontological parameters as proxies of late Miocene surface water properties and paleoclimate in Gavdos Island, eastern Mediterranean

FIG. 9. — SST curves based on the percentages of warm- and cool-water indices.

FIG. 8 in Micropaleontological parameters as proxies of late Miocene surface water properties and paleoclimate in Gavdos Island, eastern Mediterranean

FIG. 8. — The score plots of the factors revealed from the R-mode analysis for each section.

FIG. 6 in Micropaleontological parameters as proxies of late Miocene surface water properties and paleoclimate in Gavdos Island, eastern Mediterranean

FIG. 6. — Litho-, bio- and chronostratigraphy of the studied sections in Gavdos Island, Greece.

opencc-zeroSep 2023View details →

Ancient human colonization explains dung beetle species richness in the Mediterranean and Macaronesian islands

Aim: Different hypothesis have been proposed to explain differences in species richness among islands. However, few studies have attempted to compare the explanatory power of multiple hypotheses using a large data set. Here we analyse how different types of predictors (energetic/climatic, environmental heterogeneity, island biogeography and anthropogenic) affect variation in dung beetle species richness on Mediterranean and Macaronesian islands. Location: Mediterranean and Macaronesian islands. Taxon: Dung beetles. Methods: Using a large dataset of islands (n = 147), we extracted the species richness of dung beetles on each island using 362 bibliographic reference sources. We performed GLMs to analyse the relationship between the species richness of dung beetles and eleven explanatory variables (temperature, evapotranspiration, aridity, area, maximum elevation, connection to continent during LGM, geological origin, distance from continent, nearest continent, years since first human colonization and human density) representing four types of causal hypotheses. We also included as a covariate the number of published papers studying dung beetles as a surrogate of the survey/study effort carried out in each island. Results: GLMs suggest that the years since first human colonization, the number of published papers, and island area were the predictors with a higher explanatory capacity. The volcanic character of the islands and the distance from the mainland had some relevance in the case of Scarabaeinae and Geotrupinae, and maximum elevation appeared relevant in the species richness of Scarabaeinae and Aphodiidae. The anthropogenic and island biogeography hypotheses on the variation in species richness were the ones that have the strongest explanatory capacity, regardless of the inclusion of the surrogate of survey effort as a covariate in the models. Main conclusions: The long history of human movements and agricultural activities has facilitated the colonization of dung beetles and provided trophic resources for their persistence, leading to increased species richness. Thus, the importance of anthropogenic factors in shaping the biodiversity patterns of island biogeography cannot be ignored. These human-induced influences may play a fundamental role in altering the biogeographic patterns of islands, even overriding the importance of other variables. Consequently, our findings underline the profound impact of historical human actions on islands biodiversity.

opencc-zeroSep 2023View details →

Gulls contribute to olive seed dispersal within and among islands in a Mediterranean coastal area

Aim: To analyse the role of non-frugivorous birds on seed dispersal, seed dispersal by gulls is expected to be especially instrumental in island ecosystems, as these have a smaller subset of frugivores when compared to the mainland, and because long-distance dispersal is required for plant colonization. Here we investigated the seed dispersal of olives by gulls among ten islands of the same archipelago to reveal if gulls contribute to long-distance seed dispersal including different islands, and how gulls' adaptation to domestic olives and individual differences in foraging activities affect their seed dispersal pattern. Location: Balearic Islands in the Western Mediterranean Sea, Spain Taxon: Yellow-legged gulls ( Larus michahellis), Domestic and wild Olives ( Olea europaea and O. europaea var. sylvestris) Methods: We developed seed dispersal models of the two ecotypes of olives dispersed by gulls across an archipelago, based on GPS tracking data, gut passage time, and seed viability. Results: Mean dispersal distances were 7.67 (±12.48) km in wild and 12.57 (±13.08) km in domestic olives. Seven-point one percent of wild and 8.5% of domestic olives were dispersed among islands. Among these, 8.2% of domestic seeds were transported from large to small islands where gull colonies are located, whereas wild olives were dispersed in more variable directions. Such dispersal pattern of two olive ecotypes were consistent despite the differences in dispersal distances among individuals. Main conclusions: Gulls contributed to long-distance olive seed dispersal including different islands. The seed dispersal of domestic olives to longer distances with specific directions may facilitate colonization and expansion of that variant if the conditions of seed deposition sites are suitable. Our findings indicate that gulls are relevant vectors for long-distance dispersal of large fleshy fruits in island ecosystems where specialist large frugivores are absent.

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Gulls contribute to olive seed dispersal within and among islands in a Mediterranean coastal area

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Ancient human colonization explains dung beetle species richness in the Mediterranean and Macaronesian islands

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FIGURE 9 in Lebetus patzneri (Teleostei: Gobiidae), a new goby species from the Balearic Islands, western Mediterranean, with first records of Lebetus guilleti (Le Danois, 1913) from this area and Norway, and with notes on its biology

FIGURE 9. Maximum likelihood phylogenetic tree topology depicting the phylogenetic position and small intraspecific genetic distance of COI-barcode haplotypes (520 bp) of the holotype of Lebetus patzneri sp. nov. and five Lebetus guilleti from the northeastern Atlantic (Norway, two specimens), the Western Mediterranean (Baleares, one specimen) and from the northern Adriatic (Croatia, two specimens). All sand goby genera are included, except for Hyrcanogobius and Pseudaphya. Numbers on branches are bootstrap support values (%) for the Maximum Likelihood analysis (values below 50% not shown). Tip labels are composed of the genus and species name followed by ZSM collection number (if newly sequenced in this study) or of the GenBank accession number. Inserted photos depict the second known specimen of L. patzneri sp. nov. (as Fig. 8c; upper photograph) and the first L. guilleti specimen photographed and collected in 15m depth in Norway (ZSM-PIS-GO 1227; lower photograph). Photographs above and below by F. Ordines and R. Svensen, respectively.

FIGURE 8 in Lebetus patzneri (Teleostei: Gobiidae), a new goby species from the Balearic Islands, western Mediterranean, with first records of Lebetus guilleti (Le Danois, 1913) from this area and Norway, and with notes on its biology

FIGURE 8. Lebetus patzneri sp. nov., aspects of the paratype and two unpreserved specimens in life coloration shortly after collection. a: left lateral view of paratype ZSM 46865, female, 16.8 mm SL; from off SW Mallorca Island, 60m depth (based on montage of two separate photographs (slight artifacts at montage suture at about D1 origin due to slightly different position of the specimen between the two photographs); b: left dorsolateral view of head and anterior flank view of paratype ZSM 46865; c: left lateral view of the second known specimen (unpreserved), unknown size, Menorca channel, 67m depth (based on montage of two separate photographs; stitching artifacts visible before D1 origin); d: left slightly dorsolateral view of third known specimen (unpreserved) of unknown size, Menorca channel, 67m depth. Photographs by F. Ordines.

FIGURE 3 in Lebetus patzneri (Teleostei: Gobiidae), a new goby species from the Balearic Islands, western Mediterranean, with first records of Lebetus guilleti (Le Danois, 1913) from this area and Norway, and with notes on its biology

FIGURE 3. Lebetus patzneri sp. nov., aspects of the preserved holotype, reversibly stained with Cyanine Blue, ZSM 47486, female, 16.6 mm SL, from off SW Mallorca Island, 72 m depth, preserved. a: left lateral view b: dorsal view; c: ventral view. Photographs by M. Kovačić.

FIGURE 2 in Lebetus patzneri (Teleostei: Gobiidae), a new goby species from the Balearic Islands, western Mediterranean, with first records of Lebetus guilleti (Le Danois, 1913) from this area and Norway, and with notes on its biology

FIGURE 2. Lebetus patzneri sp. nov., aspects of the freshly collected holotype, ZSM 47486, female, 16.6 mm SL, from off SW Mallorca Island, 72 m depth, preserved. a: left lateral view; b: right lateral view; c: ventral view; c: dorsal view; d: ventral view left lateral view. Photographs by F. Ordinas.