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Figure 6 in Albian to Turonian agglutinated foraminiferal assemblages of the Lower Saxony Cretaceous sub-basins - implications for sequence stratigraphy and paleoenvironmental interpretation

Figure 6. Late Albian to Turonian agglutinated foraminifera from the Lower Saxonian Cretaceous; scale bars are 100 µm. (a) Saccammina grzybowski, Wunstorf Wu2010/1, 54.00 m. (b) Psammosphaera fusca, Wunstorf Wu2010/1, 59.05 m. (c) Tipeammina elliptica, Söhlde section, 31.00 m. (d–e) Tipeammina sp. 1, Wunstorf Wu2010/4, 43.30 m. (f) Hyperammina gaultina, Wunstorf Wu 2010/4, 48.20 m. (g–h) Ammolagena clavata, two specimens sticking together, Wunstorf Wu2010/3, 25.50 m. (i) Ammolagena contorta, possibly previously attached on an inoceramid prism, Wunstorf Wu2010/4, 38.20 m. (j) Caudammina ovula, Söhlde section, 31.00 m. (k) Subreophax scalaris, Wunstorf Wu2010/1, 69.10 m. (l) Ammodiscus cretaceus, Wunstorf Wu 2010/4, 48.20 m. (m) Ammodiscus glabratus, Wunstorf Wu2010/1, 54.65 m. (n) Ammodiscus peruvianus, Wunstorf Wu2010/1, 54.00 m. (o) Ammodiscus tenuissimus, Wunstorf Wu2010/4, 43.30 m. (p) Glomospira diffundens, Wunstorf Wu2010/1, 49.05 m. (q) Glomospira gordialis, Wunstorf Wu 2010/3, 66.05 m. (r) Repmanina charoides, Wunstorf Wu2010/4, 38.20 m. (s) Lituotuba lituiformis, Wunstorf Wu 2010/4, 48.95 m. (t) Rzehakina minima, Wunstorf Wu2010/1, 54.80 m.

Figure 8 in Albian to Turonian agglutinated foraminiferal assemblages of the Lower Saxony Cretaceous sub-basins - implications for sequence stratigraphy and paleoenvironmental interpretation

Figure 8. Late Albian to Turonian agglutinated foraminifers from the Lower Saxonian Cretaceous; scale bars are 100 µm. (a) Tritaxia gaultina, Wunstorf Wu2010/1, 19.05 m. (b) Tritaxia tricarinata, Wunstorf Wu2010/1, 19.05 m. (c) Tritaxia macfadyeni, Wunstorf Wu2010/1, 34.10 m. (d–e) Eggerellina brevis, Baddeckenstedt section, 19.30 m. (f) Eggerellina mariae, Wunstorf Wu2010/3, 30.15 m. (g) Flourensina intermedia, Wunstorf Wu2010/1, 54.80 m. (h) Gaudryina sp. 1, Baddeckenstedt section, 39.00 m. (i) Verneuilinoides sp., Wunstorf Wu2010/4, 48.95 m. (j) Vialovella frankei, Wunstorf Wu2010/1, 15.20 m. (k) Arenobulimina bochumensis, Baddeckenstedt section, 9.00 m. (l) Arenobulimina preslii, Wunstorf Wu2010/4, 43.30 m. (m) Arenobulimina truncata, Wunstorf Wu2010/4, 43.30 m. (n–o) Ataxophragmium depressum, Wunstorf Wu2010/4, 58.60 m. (p) Hagenowella elevata, Wunstorf Wu2010/4, 58.60 m. (q) Voloshinoides advenus, Wunstorf Wu2010/1, 29.25 m. (r) Voloshinoides anglicus, Baddeckenstedt section, 7.00 m. (s) Pseudotextulariella cretosa, Wunstorf Wu2010/1, 19.05 m. (t) Kadriayina gradata, Wunstorf Wu2010/3, 66.05 m. (u) Marssonella ozawai, Wunstorf Wu2010/1, 15.20 m.

Figure 3 in Albian to Turonian agglutinated foraminiferal assemblages of the Lower Saxony Cretaceous sub-basins - implications for sequence stratigraphy and paleoenvironmental interpretation

Figure 3. Schematic locality details of the study area of Wunstorf and position of the cores: green (Voigt et al., 2008b), blue (Erbacher et al., 2020), and red (this study). Modified from Seibertz (2013: Fig. 5).

Figure 9 in Albian to Turonian agglutinated foraminiferal assemblages of the Lower Saxony Cretaceous sub-basins - implications for sequence stratigraphy and paleoenvironmental interpretation

Figure 9. Columnar section of the Albian to Cenomanian part of the Wunstorf core Wu 2010/1 with agglutinated foraminiferal morphogroups, Fisher alpha index, species richness, and foraminiferal events (acmes) indicated by arrows. For log legend, see Fig. 3.

Figure 1 in Albian to Turonian agglutinated foraminiferal assemblages of the Lower Saxony Cretaceous sub-basins - implications for sequence stratigraphy and paleoenvironmental interpretation

Figure 1. Paleogeographical map of Europe and the study area. (A) Paleogeography of Europe during the Cenomanian, modified after Philip and Floquet (2000). (B) Paleogeography of southern Lower Saxony during the early Cenomanian, modified from Wilmsen et al. (2021), base map from Hiss (1995).

Figure 7 in Albian to Turonian agglutinated foraminiferal assemblages of the Lower Saxony Cretaceous sub-basins - implications for sequence stratigraphy and paleoenvironmental interpretation

Figure 7. Late Albian to Turonian agglutinated foraminifers from the Lower Saxonian Cretaceous; scale bars are 100 µm. (a) Reophax subfusiformis, Wunstorf Wu2010/1, 54.00 m. (b) Pseudonodosinella nodulosa, Wunstorf Wu2010/4, 48.20 m. (c) Pseudonodosinella parvula, Wunstorf Wu2010/4, 48.20 m. (d) Pseudonodosinella troyeri, Baddeckenstedt section, 39.00 m. (e) Haplophragmoides suborbicularis, Wunstorf Wu2010/3, 70.50 m. (f) Haplophragmoides walteri, Wunstorf Wu2010/4, 48.95 m. (g) Ammobaculites agglutinans, Söhlde section, 31.00 m. (h) Ammobaculites wenonahae, Wunstorf Wu2010/1, 19.05 m. (i) Bulbobaculites problematicus, Wunstorf Wu2010/1, 24.75 m. (j) Spiroplectammina navarroana, Wunstorf Wu2010/4, 48.20 m. (k) Spiroplectinella cretosa, Baddeckenstedt section, 2.00 m. (l) Bicazammina lagenaria, Söhlde section, 24.00 m. (m) Parvigenerina sp. 3, Wunstorf Wu2010/4, 48.95 m. (n) Eobigenerina kuhnti, Söhlde section, 9.50 m. (o) Eobigenerina variabilis, Söhlde section, 1.50 m. (p) Rectogerochammina eugubina, Wunstorf Wu2010/4, 48.95 m. (q) Gerochammina stanislawi, Wunstorf Wu2010/4, 53.15 m. (r) Plectina cenomana, Wunstorf Wu2010/3, 45.00 m. (s) Plectina mariae, Wunstorf Wu2010/3, 84.00 m.

Figure 4 in Albian to Turonian agglutinated foraminiferal assemblages of the Lower Saxony Cretaceous sub-basins - implications for sequence stratigraphy and paleoenvironmental interpretation

Figure 4. Correlated columnar sections of the Wunstorf cores Wu 2010/1 and Wu 2010/3 and their carbon isotope patterns. On the right correlation to the carbon isotopes of the Wunstorf Wu2011/8 core of Erbacher et al. (2020: Fig. 3) and to the Anderten-1 core of Bornemann et al. (2017: Fig. 3). Brown bar: correlation of a sequence boundary based on the isotopic pattern; green bar: correlation based on a bio-event; grey bar: correlation based on a lithoevent.

Figure 2 in Albian to Turonian agglutinated foraminiferal assemblages of the Lower Saxony Cretaceous sub-basins - implications for sequence stratigraphy and paleoenvironmental interpretation

Figure 2. Chronostratigraphy, selected events, and depositional sequences as well as interpreted sea level curve of the Lower Saxony Cretaceous. Depositional sequences, associated sequence boundaries, and sea level curve are from Janetschke et al. (2015). Age of stage boundaries are from Gradstein et al. (2020).

Figure 13 in Albian to Turonian agglutinated foraminiferal assemblages of the Lower Saxony Cretaceous sub-basins - implications for sequence stratigraphy and paleoenvironmental interpretation

Figure 13. Columnar section of the Cenomanian–Turonian boundary and the Lower to Upper Turonian part of the Söhlde–Loges quarry with agglutinated foraminiferal morphogroups, Fisher alpha index, species richness, and foraminiferal events (acmes) indicated by arrows. For log legend, see Fig. 4; log redrawn after Wiese (2009: Fig. 6).

Figure 10 in Albian to Turonian agglutinated foraminiferal assemblages of the Lower Saxony Cretaceous sub-basins - implications for sequence stratigraphy and paleoenvironmental interpretation

Figure 10. Columnar section of the Lower Cenomanian part of the Wunstorf core Wu 2010/3 with agglutinated foraminiferal morphogroups, Fisher alpha index, species richness, and foraminiferal events (acmes) indicated by arrows. For log legend, see Fig. 3.

Figure 14 in Albian to Turonian agglutinated foraminiferal assemblages of the Lower Saxony Cretaceous sub-basins - implications for sequence stratigraphy and paleoenvironmental interpretation

Figure 14. Albian, Cenomanian, and Turonian FOs and LOs (first – and last occurrences) of selected agglutinated foraminifers from Lower Saxony (Wunstorf, Baddeckenstedt, Söhlde), the Münsterland (Frieg and Kemper, 1989) and the English Chalk (Hart et al., 1989), and the DWAF (deep-water agglutinated foraminifera) zonation of the western Tethys (Coccioni et al., 1995; Kaminski et al., 2011).

opencc-by-4.0Jun 2024View details →

Fig. 1 in Assessment of Odonate assemblages in the Agro Pontino (Latina, Central Italy) using two biotic indices (Insecta: Odonata)

Fig. 1 – Geographical location of the study area (Lazio, central Italy). On the right: geographical location within Italy

Fig. 2 – n in Ground beetle assemblages in six different forest ecosystems from Tuscany (Central Italy) (Coleoptera: Carabidae)

Fig. 2 – n-MDS ordination of mean carabid beetles data (log(x+1) transformation, Bray-Curtis dissimilarity). Symbols identify the 6 PMPs examined during the search: Foresta del Teso: black triangle; Vallombrosa: white triangle; Madonna delle Querce: black circle; Ulignano: white circle; Colognole; black square; Cala Violina: white square.

Fig. 1 in Ground beetle assemblages in six different forest ecosystems from Tuscany (Central Italy) (Coleoptera: Carabidae)

Fig. 1 – Location of study sites. Foresta del Teso: black triangle; Vallombrosa: white triangle; Madonna delle Querce: black circle; Ulignano: white circle; Colognole; black square; Cala Violina: white square. PMP: permanent monitoring plot with the scheme of the three pitfall traps. More information in Bartolozzi et al. 2002.

Fig. 3 in Avian Assemblages in Forest Fragments do not Sum to the Expected Regional Community in the Brazilian Atlantic Forest.

Fig. 3. The number of local Atlantic Forest species by forest fragment size (log10 scales), showing that the number increases with fragment size (F = 13.4, r2 = 0.625, p = 0.0065).

Fig. 2 in Avian Assemblages in Forest Fragments do not Sum to the Expected Regional Community in the Brazilian Atlantic Forest.

Fig. 2. Numbers of species and similarities (PCoA) among the 10 Atlantic Forest fragments in southern Bahia, Brazil. A) Species accumulation curves, illustrating that with over 5000 sightings, the predicted total number of species had not been reached in any fragment, or in all fragments combined. Also, the similarity of the curves and their lack of a relationship with fragment size suggests that all fragments are similar with respect to accumulation of species. Note that both axes are log10 scaled. B) Principal Coordinate Analysis, using Bray similarities, illustrating that similarity among fragments was always low. Larger symbols indicate fragment centroids, and each smaller point indicates a sample list of species (see text). No particular pattern is evident, and all fragments are variable and do not form groups based on fragment size.

Fig. 4 in Avian Assemblages in Forest Fragments do not Sum to the Expected Regional Community in the Brazilian Atlantic Forest.

Fig. 4. Functional diversity analysis comparing different-sized fragments and functional evenness, dispersion, and divergence. A–C: Black squares and lines indicate the Atlantic Forest expected regional assemblage, circles and lines indicate the observed assemblages, with blue indicated only the Atlantic Forest species, and the open circle indicates all observed species (all based on presence-absence). D–F: estimated from presence-absence data of the expected local assemblage that were absent from the fragment. Regression results are presented in table 3.

opencc-by-4.0Mar 2018View details →

Functional plasticity in vertebrate scavenger assemblages in the presence of introduced carnivores

Data for manuscript focusing on the consumption of varying amounts of carrion by coastal scavengers in Queensland, Australia.

openother-openJun 2018View details →

Determinants of Reef Fish Assemblages on Tropical Oceanic Islands

ABSTRACT Diversity patterns are determined by biogeographic, energetic, and anthropogenic factors, yet few studies have combined them into a large-scale framework in order to decouple and compare their relative effects on fish faunas. Using an empirical dataset derived from 1527 underwater visual censuses (UVC) at 18 oceanic islands (five different marine provinces), we determined the relative influence of such factors on reef fish species richness, functional dispersion, density and biomass estimated from each UVC unit. Species richness presented low variation but was high at large island sites. High functional dispersion, density, and biomass were found at islands with large local species pool and distance from nearest reef. Primary productivity positively affected fish richness, density and biomass confirming that more productive areas support larger populations, and higher biomass and richness on oceanic islands. Islands densely populated by humans had lower fish species richness and biomass reflecting anthropogenic effects. Species richness, functional dispersion, and biomass were positively related to distance from the mainland. Overall, species richness and fish density were mainly influenced by biogeographical and energetic factors, whereas functional dispersion and biomass were strongly influenced by anthropogenic factors. Our results extend previous hypotheses for different assemblage metrics estimated from empirical data and confirm the negative impact of humans on fish assemblages, highlighting the need for conservation of oceanic islands. Keywords: species richness, functional dispersion, density, fish biomass, biogeographic factors, energetic factors, anthropogenic factors, marine provinces.