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opencc-by-4.0Jul 2019View details →

Macrofauna, granulometry, n-alkanes and PAH's in sediments of the sandy beaches of the state of Yucatan: November 2018.

This collection corresponds to the species registered and pollutants on sandy beaches of the State of Yucatan, Mexico, using the MBON P2P sampling protocol for sandy beaches, with funding from the LANRESC UNAM-CONACYT (Laboratorio Nacional de Resiliencia Costera, Universidad NAcional Autonoma de Mexico - CONACyT)

opencc-by-4.0Aug 2024View details →

Figure 1 in sOilFauna - a global synthesis effort on the drivers of soil macrofauna communities and functioning

Figure 1. Location of the transects in the present version of the MACROFAUNA database (A) Map of the data (B) Location of the data in relation to the biomes.

opencc-by-4.0Jan 2014View details →

Figure 3 in Effect of land cover on biodiversity and composition of a soil macrofauna community in a reclaimed coastal area at Yancheng, China

Figure 3. The dendrogram of cluster analysis on soil macrofauna from different habitats with Bray–Curtis similarity by paired groups method (A: Uncultivated land; B: Bulrush land; C: Wheat farm; D: Poplar forest; E: Metasequoia forest).

opencc-by-4.0Jan 2014View details →

Figure 2 in Effect of land cover on biodiversity and composition of a soil macrofauna community in a reclaimed coastal area at Yancheng, China

Figure 2. One-way ANOVA on taxonomic richness and abundance, Margalef 's richness index (R) and Shannon-Weaver diversity index (H') among different habitats (Mean ± SE). The means with different scripts are significantly different by SNK test, α = 0.05.

opencc-by-4.0Dec 2008View details →

Text-fig. 3. Borehole section in the Blansko Graben with lithology, distribution of palynomorphs, macroflora and macrofauna (modified after Čech, unpublished report). 1 – Spesovicornea pacltovae, 2 – Platanus sp., 3 – Myrtophyllum angustum (VEL.) KNOBOCH, 4 – Gleichenia sp.), 5 – percentage of land-derived palynomorphs, 6 – percentages of marine palynomorphs, 7 – glauconite, 8 – pyrite nodules, 9 – macrofauna, 10 – productive palynological samples, 11 – carbonized roots, 12 – conglomerate, 13 – sandstone, 14 – claystone, 15 – coal, 16 – granite and granodiorite of the Brno pluton. in Spesovicornea Pacltovae Gen. Nov. Et Sp. Nov., A New Elateroid Sporomorph From The Bohemian Cenomanian (Czech Republic)

Text-fig. 3. Borehole section in the Blansko Graben with lithology, distribution of palynomorphs, macroflora and macrofauna (modified after Čech, unpublished report). 1 – Spesovicornea pacltovae, 2 – Platanus sp., 3 – Myrtophyllum angustum (VEL.) KNOBOCH, 4 – Gleichenia sp.), 5 – percentage of land-derived palynomorphs, 6 – percentages of marine palynomorphs, 7 – glauconite, 8 – pyrite nodules, 9 – macrofauna, 10 – productive palynological samples, 11 – carbonized roots, 12 – conglomerate, 13 – sandstone, 14 – claystone, 15 – coal, 16 – granite and granodiorite of the Brno pluton.

Fig. 8 in Does dredging activity exert an influence on benthic macrofauna in tropical estuaries? Case study on the northern coast of Brazil

Fig. 8. Diagram of Principal Component Analysis during collection periods [Temp(W), water temperature; Sal(W), water salinity; OD(W), water dissolved oxygen; pH(W), pH of water; Fe(W), water iron; Mn(W), water manganese; Cu(S), copper from sediment; Cr(S), chromium from sediment; Ni(S), nickel from sediment; Zn(S), zinc from sediment].

Fig. 7 in Does dredging activity exert an influence on benthic macrofauna in tropical estuaries? Case study on the northern coast of Brazil

Fig. 7. Dendrogram of Bray-Curtis similarity between the points sampled in the Port Complex of SÃo LuÍs, MaranhÃo, Brazil.

Fig. 3 in Does dredging activity exert an influence on benthic macrofauna in tropical estuaries? Case study on the northern coast of Brazil

Fig. 3. Temporal and spatial variation of different granulometric size fractions contribution (%) to the sediment total weight at SÃo LuÍs Harbor, MaranhÃo, Brazil. The number below the x-axis indicate the sampling stations.

Fig. 6 in Does dredging activity exert an influence on benthic macrofauna in tropical estuaries? Case study on the northern coast of Brazil

Fig. 6. Number of species, density and diversity of Shannon of the benthic macrofauna found in the Port Complex of SÃo LuÍs, MaranhÃo, Brazil: (A) Number of species, (B) Density, (C) Shannon diversity and (D) Lumbrineris sp.

Fig 5 in Does dredging activity exert an influence on benthic macrofauna in tropical estuaries? Case study on the northern coast of Brazil

Fig 5. Temporal and spatial variation of metals and semimetals concentrations (mg kg-1) in the sediment at SÃo LuÍs Harbor, MaranhÃo, Brazil: (A) Lead, (B) Copper, (C) Chrome, (D) Nickel, (E) Zinc and (F) Arsenic.

Fig. 2 in Does dredging activity exert an influence on benthic macrofauna in tropical estuaries? Case study on the northern coast of Brazil

Fig. 2. Temporal and spatial variation of sub superficial salinity (A), temperature (B), dissolved oxygen (C) and pH (D) at SÃo LuÍs Harbor, MaranhÃo, Brazil.

Fig. 1 in Does dredging activity exert an influence on benthic macrofauna in tropical estuaries? Case study on the northern coast of Brazil

Fig. 1. Map of the location of Port Complex of SÃo LuÍs, MaranhÃo, Brazil, indicating the eight sampling points.

Fig. 4 in Does dredging activity exert an influence on benthic macrofauna in tropical estuaries? Case study on the northern coast of Brazil

Fig. 4. Temporal and spatial variation of total iron (A), dissolved iron (B), manganese (C) and zinc (D) concentrations (mg kg-1) in the sub superficial water at SÃo LuÍs Harbor, MaranhÃo, Brazil. The thick black bar indicates the maximum allowed by resolution 357/05.

publicSep 2025View details →

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Mesofauna and macrofauna densities at species/group level from 2008 to 2020 in three regions in Germany

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opencc-zeroFeb 2020View details →

Respiratory medium and circulatory anatomy constrain size evolution in marine macrofauna

The typical marine animal has increased in biovolume by more than two orders of magnitude since the beginning of the Cambrian, but the causes of this trend remain unknown. We test the hypothesis that the efficiency of intra-organism oxygen delivery is a major constraint on body size evolution in marine animals. To test this hypothesis, we compiled a dataset comprising 13,723 marine animal genera spanning the Phanerozoic. We coded each genus according to its respiratory medium, circulatory anatomy, and feeding mode. In extant genera, we find that respiratory medium and circulatory anatomy explain more of the difference in size than feeding modes. Likewise, we find that most of the Phanerozoic increase in mean biovolume is accounted for by size increase in taxa that accomplish oxygen delivery through closed circulatory systems. During the Cambrian, water-breathing animals with closed circulatory systems were smaller, on average, than contemporaries with open circulatory systems. However, genera with closed circulatory systems superseded in size genera with open circulatory systems by the middle Ordovician, as part of their Phanerozoic-long trend of increasing size. In a regression analysis, respiratory and circulatory anatomy explain far more size variation in the living fauna than do feeding modes, even after accounting for taxonomic affinity at the class level. These findings suggest that ecological drivers of the Phanerozoic increase in the mean size of marine animals operated within strong, anatomically determined constraints.

opencc-zeroJun 2022View details →

Trophic structure and origin of resources of soil macrofauna in the salt marsh of the Wadden Sea: a stable isotope (15N,13C) study

Salt marshes exist along the gradient of the marine mudflat to the terrestrial dunes, with a gradient of shore height and associated plant zonation. The lower salt marsh (LSM) extends from the mean high tidal level to 35 cm above that level and is followed by the upper salt marsh (USM). Despite changes in the amount of allochthonous marine input and in abiotic conditions, little is known about changes in the trophic structure and used of basal resources by the soil macrofauna along marine – terrestrial boundaries. Natural variations in carbon stable isotope ratios (δ¹³C signatures) allow insight into basal resources of consumers such as marine algae, terrestrial C3 and C4 photosynthesising plants. Furthermore, variations in nitrogen stable isotope ratios (δ¹5N signatures) allow insight into the trophic position of consumers. We investigated spatial and temporal changes in stable isotope signatures in salt marsh soil macrofauna of the island of Spiekeroog, German Wadden Sea. The range of δ¹⁵N signatures indicated no changes in food chain length across salt marsh zones with consumers in both zones comprising primary decomposer, secondary decomposer and first order predators. However, the trophic position of individual species changed between zones, but in particular with season. Contrasting δ¹⁵N signatures, the range in δ¹³C signatures in the LSM was twice that in the USM indicating a wider range of resources consumed. Bayesian mixing models indicated predominant autochthonous resource use in both the LSM and USM, with the use of marine allochthonous resources never exceeding 29.6%. However, the models also indicate an increase in the use of marine resources in certain species in the LSM with no use in the USM. Overall, the results indicate that the resource use of salt marsh macrofauna varies more in space than in time, with the food web being generally based on autochthonous rather than allochthonous resources. However, there also is trophic plasticity in certain species across both temporal and spatial scales including variations in the use of allochthonous resources. Generally, however, marine input contributes little to the nutrition of salt marsh soil macroinvertebrates.

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Figure 2 in sOilFauna - a global synthesis effort on the drivers of soil macrofauna communities and functioning

Figure 2. Main hypotheses of soil biodiversity drivers. Adapted from (Calderón-Sanou et al. 2022).

opencc-by-4.0Aug 2024View details →

opencc-zeroAug 2021View details →

A "Dirty" Footprint: Soil macrofauna biodiversity and fertility in Amazonian Dark Earths and adjacent soils

Amazonian rainforests once thought to hold an innate pristine wilderness, are increasingly known to have been densely inhabited by populations showing a diverse and complex cultural background prior to European arrival. To what extent these societies impacted their landscape is unclear. Amazonian Dark Earths (ADEs) are fertile soils found throughout the Amazon Basin, created by pre-Columbian societies as a result of more sedentary habits. Much is known of the chemistry of these soils, yet their zoology has been neglected. Hence, we characterised soil macroinvertebrate communities and activity in these soils at nine archaeological sites and adjacent reference soils in three Amazonian regions, totaling eighteen sampling sites. Furthermore, we characterized various soil chemical and physical properties associated with soil fertility. The current dataset contains data on soil macroinvertebrate biodiversity (26 taxa), with a special focus on termites, earthworms and ants. It also contains data on soil macromorphology, bulk density and porosity, soil carbon, nitrogen, macro and micronutrients, magnetic susceptibility and apparent electrical conductivity. The results show similar overall macrofauna morphospecies richness in ADE and adjacent soils, but distinct communities in each soil type. They also show higher soil fauna activity in ADEs when compared to adjacent reference soils, associated with greater earthworm populations. Finally, they also confirm the well-known high soil fertility in ADEs compared with adjacent soils. Land use was an important determinant of both macrofauna biodiversity and soil fertility. These findings support the idea that humans have built and sustained a contrasting high fertility ecosystem that persisted until our days, altering biodiversity distribution patterns in Amazonia.