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Figure 5 in Advertisement call, tadpole morphology, and other natural history aspects of the threatened poison frog Andinobates daleswansoni (Dendrobatidae)

Figure 5. The tadpole of Andinobates daleswansoni (Gosner Stage 26) in lateral (a), dorsal (b), and ventral (c) views. Scale bar = 5.0 mm. Voucher at the Colección de Anfibios y Reptiles of the Biology programme at the Universidad del Quindío, Armenia, Colombia: ARUQ-977.

Figure 7 in Advertisement call, tadpole morphology, and other natural history aspects of the threatened poison frog Andinobates daleswansoni (Dendrobatidae)

Figure 7. Most parsimonious ancestral character-state reconstruction of the presence/absence of the papillation gap in the lower lip of Andinobates species onto the phylogenetic hypothesis of Grant et al. (2017); trimmed in the figure to show only Andinobates and Ranitomeya. Note that the presence of the gap optimises ambiguously.

Figure 4 in Advertisement call, tadpole morphology, and other natural history aspects of the threatened poison frog Andinobates daleswansoni (Dendrobatidae)

Figure 4. Oscillogram, spectrogram, and power spectrum for the advertisement call of Andinobates daleswansoni. Male body size: 23.7 mm, temperature of calling male: 17.1°C, voucher at the Colección de Anfibios y Reptiles of the Biology programme at the Universidad del Quindío, Armenia, Colombia: ARUQ-768. Voucher at Colección de Sonidos Ambientales of the Instituto Alexander von Humboldt, Villa de Leyva, Boyacá, Colombia IAvH–CSA-18535. Ilustration by Dina Lucía Rivera-Robles.

Figure 3 in Advertisement call, tadpole morphology, and other natural history aspects of the threatened poison frog Andinobates daleswansoni (Dendrobatidae)

Figure 3. Oscillogram showing temporal call features calculated in this study for the description of the advertisement call of the poison frog A. daleswansoni.

Figure 1 in Advertisement call, tadpole morphology, and other natural history aspects of the threatened poison frog Andinobates daleswansoni (Dendrobatidae)

Figure 1. Image of a calling male of Andinobates dalewansoni in the study area. Individual not collected.

opencc-zeroSep 2021View details →

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Genomic distinctness despite shared color patterns among threatened populations of a tiger beetle

Conservation biologists have long debated the value of subspecies, which are morphologically and geographically identifiable but not necessarily evolutionarily distinctive. One example of a controversial subspecies is Cicindela formosa gibsoni, a tiger beetle that is nationally listed as threatened in Canada and whose taxonomic status is based primarily on its unique elytral (forewing) color pattern. To determine whether C. f. gibsoni represents one or more genetically distinctive units, we sampled 14 populations within or near this subspecies' disjunct North American range and assessed their genetic differentiation from neighboring and phenotypically distinctive populations of C. f. formosa and C. f. fletcheri. Instead of clustering by color pattern, analyses of mitochondrial and nuclear markers recovered three geographically structured genetic groupings: a northern cluster from Canada, a southwestern cluster from northwestern Colorado, and a southeastern cluster of US populations east of the Continental Divide. These data, coupled with previously documented differences in larval morphology, suggest that populations of C. formosa in western Canada and northwestern Colorado may have independently evolved similar color patterns. Thus, we consider C. f. gibsoni to be endemic to Canada and describe the novel subspecies C. f. gaumeri ssp. nov. from northwestern Colorado. Both subspecies are evolutionarily significant units, and each deserves consideration for conservation listing. Collectively, our results reveal general congruence between mitochondrial and nuclear genetic data but conflict with color pattern, the conventional basis for subspecies designations in tiger beetles.

opennotspecifiedJan 2021View details →

FIGURE 2. Trichaptum fissile. A in A new and threatened species of Trichaptum (Basidiomycota, Hymenochaetales) from urban mangroves of Santa Catarina Island, Southern Brazil

FIGURE 2. Trichaptum fissile. A. Basidioma in situ growing on Schinus terebinthifolius (FLOR67488 – Holotype); B. Cross-section of a basidioma (FLOR67490 – Paratype). C. Hymenophore. D. Thin-walled basidiospores. E. Hymenium. F. Detail of hymenium showing cystidia. G. Cystidia. H. Skeletal hyphae. I. Basidiospore. Bars: A = 10mm; B, C = 1mm; D, E, F, G, H, I = 10µm. Photos by T. Kossmann.

opennotspecifiedJan 2021View details →

FIGURE 1 in A new and threatened species of Trichaptum (Basidiomycota, Hymenochaetales) from urban mangroves of Santa Catarina Island, Southern Brazil

FIGURE 1. Best-scored tree from the ML analyses, showing the phylogenetic relationships of Trichaptum species inferred from ITS sequences. Values higher than 70% and 0.95 for Bootstrap and Posterior probability, respectively, are shown above the branches (BS/PP).

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Lineage-level distribution models lead to more realistic climate change predictions for a threatened crayfish

Aim: As climate change presents a major threat to biodiversity in the next decades, it is critical to assess its impact on species habitat suitability to inform biodiversity conservation. Species distribution models (SDMs) are a widely used tool to assess climate change impacts on species' geographical distributions. As the term suggests, the species-level is the most commonly used taxonomic unit in SDMs. However, recently it has been demonstrated that SDMs considering taxonomic resolution below (or above) the species-level can make more reliable predictions of biodiversity change when different populations exhibit local adaptation. Here, we tested this idea using the Japanese crayfish (Cambaroides japonicus), a threatened species encompassing two geographically structured and phylogenetically distinct genetic lineages. Location: Northern Japan. Methods: We first estimated niche differentiation between the two lineages of C. japonicus using n-dimensional hypervolumes, then made climate change predictions of habitat suitability using SDMs constructed at two phylogenetic levels: species and intraspecific lineage. Results: Our results showed only intermediate niche overlap, demonstrating measurable niche differences between the two lineages. The species-level SDM made future predictions that predicted much broader and severe impacts of climate change. However, the lineage-level SDMs led to reduced climate change impacts overall, and also suggested that the eastern lineage may be more resilient to climate change than the western one. Main conclusions: The two lineages of C. japonicus occupy different niche spaces. Compared with lineage-level models, species-level models can overestimate climate change impacts. These results not only have important implications for designing future conservation strategies for this threatened species, but also highlight the need for incorporating genetic information into SDMs to obtain realistic predictions of biodiversity change.

opencc-zeroDec 2021View details →

opennotspecifiedDec 2012View details →

FIGURES 1–3. Female phorid fly oviscapes, lateral. 1 in Parasitoid phorid flies (Diptera: Phoridae) from the threatened leafcutter ant Atta robusta Borgmeier (Hymenoptera: Formicidae)

FIGURES 1–3. Female phorid fly oviscapes, lateral. 1. Eibesfeldtphora breviloba; 2. Eibesfeldtphora digitalis; 3. Myrmosicarius exrobustus.

opennotspecifiedOct 2022View details →

FIGURE 5 in Rediscovery and an additional record of Terminalia kangeanensis (Combretaceae), a long lost threatened species from Indonesia

FIGURE 5. Leaves in flat shape (above) and fruits in cross-section (below). A). Terminalia kangeanensis from Tabuhan island (RIO 2971), B). Terminalia cf. microcarpa, misidentified as T. kangeanensis (Living collection in Bogor Botanic Gardens (XXIV.A.6)). Crosssection of fruits: outer layer is pulp, loculus and hollows drawn in black, sclerenchyma white, alveolar tissue dotted. Drawing by Destario Metusala.

opennotspecifiedOct 2022View details →

FIGURE 4 in Rediscovery and an additional record of Terminalia kangeanensis (Combretaceae), a long lost threatened species from Indonesia

FIGURE 4. Terminalia kangeanensis from Tabuhan island (dried herbarium, RIO 9271). A), Leaves. B), Leaf gland on adaxial surface. C), Leaf domatia in vein axils. D), Inflorescence with fruits. E), Fruit variation. Square unit scale = 1×1 cm. Photos by Destario Metusala.

opennotspecifiedOct 2022View details →

FIGURE 3 in Rediscovery and an additional record of Terminalia kangeanensis (Combretaceae), a long lost threatened species from Indonesia

FIGURE 3. Terminalia kangeanensis in Tabuhan island. A), Stem and branches. B), Leaf arrangements. C), Inflorescence with fruits. D), Fruits (close view). Photos by Destario Metusala.

FIGURE 7 in Three new species threatened by mining activity in New Caledonia

FIGURE 7. Drawing of Tristaniopsis planidisca. A—Flowering branches; B—Abaxial (left) and adaxial (right) sides of the leaf; C—Detail of the fine pubescence and a bracteole on inflorescence axis; D—Inflorescences with flowers and young fruits; E—Old infrutescence with opened fruits; F—Flower; G—Immature fruit. Illustrator: Ramon L.

FIGURE 6 in Three new species threatened by mining activity in New Caledonia

FIGURE 6. Pictures of Tristaniopsis planidisca. A—General habit; B—Abaxial surface of the leaf; C—Flowering branch; D—Flower; E—Young fruits; F—Old fruit. Photographer: Lannuzel G. from Gâteblé et al. 1240.

FIGURE 2 in Three new species threatened by mining activity in New Caledonia

FIGURE 2. Drawing of Croton barrabeae. A—Flowering branches; B—Adaxial (left) and abaxial (right) sides of the leaf; C—Base of the blade; D—Detail of a laminar gland; E—Peltate hair; F—Inflorescence and its axillary leaf; G—Staminate flower; H—Abaxial (left) and adaxial (right) sides of a staminate flower's sepal; I—Abaxial (left) and adaxial (right) sides of a staminate flower's petal; J—Stamen; K—Pistillate flower; M—Abaxial (left) and adaxial (right) sides of a pistillate flower's sepal; N—Fruit; O—Seed. Illustrator: Ramon L.

FIGURE 1 in Three new species threatened by mining activity in New Caledonia

FIGURE 1. Pictures of Croton barrabeae. A—Habit; B—Flowering branch; C—Detail of the pubescence on the abaxial surface of the leaf; D—Staminate flowers; E—Pistillate flower and staminate buds; F—Fruit in sicco (Barrabé & Rigault 1016). Photographers: Lannuzel G. & Bruy D.

FIGURE 4 in Three new species threatened by mining activity in New Caledonia

FIGURE 4. Pictures of Geijera tartarea. A—Habitat: maquis arbustif; B—Aspect of the leaves (Bruy et al. 2107); C—Abaxial face of a leaf (Bruy et al. 2107); D—Flowering branch (Bruy & Munzinger 2329); E—Flowers (Bruy & Munzinger 2329); F—Fruiting branch (Bruy & Munzinger 2330); G—Fruiting carpel with tartareous surface (Bruy et al. 2107); H—Seed (Bruy et al. 2107). Photographers: Lannuzel G. & Munzinger J.

FIGURE 3 in Three new species threatened by mining activity in New Caledonia

FIGURE 3. Distribution map of Croton barrabeae (black large dots), Geijera tartarea (black pentagons) and Tristaniopsis planidisca (grey squares). The T's represent the locality of the type specimens for each species. The black triangles represent the two highest mountains in New Caledonia. The small black dots represent the main cities in the South Province and the North Province. Grayed areas represent ultramafic substrates (from DIMENC/SGNC-BRGM 2010).