Find research datasets worth reusing

opencc-by-4.0Jun 2018View details →

Fig. 4. - Capurodendron sahafariense L. Gaut. & Naciri. A in Three Critically Endangered new species of Capurodendron (Sapotaceae) from Madagascar

Fig. 4. - Capurodendron sahafariense L. Gaut. & Naciri. A. Longitudinal section of flower; B. Flower; C. Corolla opened seen from inside; D. Corolla opened seen from outside; E. Brachyblast with leaves and post-anthesis flower; F. Branch with flowers and fruit; G. Fruit; H. Transverse section of ovary. [Drawings: G. Loza]

opencc-by-4.0May 2020View details →

Fig. 1. – Labramia ambondrombeensis L. Gaut. & Randriarisoa. A in Labramia ambondrombeensis (Sapotaceae), a Critically Endangered new species from Madagascar.

Fig. 1. – Labramia ambondrombeensis L. Gaut. & Randriarisoa. A. Flowering branch; B. Leaf with venation details (a: upper side; b: lower side); C. Flower; D. Flower in longitudinal section; E. Detached corolla spread opened (c: outer side, with appendages folded down and one lobe removed to show one lobe and one stamen; d: inner side, with two stamens removed to show inner side of lobes); F. Transversal section of the ovary. [Razakamalala et al. 1077, G] [Drawing: G. Loza]

opencc-by-4.0Dec 2021View details →

Fig. 1. Clusia falcata. A in Clusia falcata (Clusiaceae), an endangered species with exceptionally narrow leaves endemic to Chiapas, Mexico

Fig. 1. Clusia falcata. A habit of flowering staminate branch; B leaf showing abaxial surface; C detail of adaxial surface of leaf showing resin canals; D sepal adaxial side; E – F petal side view and adaxial side; G androecium; H – J stamens; K detail of petiole base showing pit in the junction with the branch; L staminate flower bud. From D. E. Breedlove & R. F. Thorne 21392 (holotype, MO). DRAWN BY JULIET BEENTJE.

dryad40/100

Using species distribution models and decision tools to direct surveys and identify potential translocation sites for a critically endangered species

Aim: Occurrence records for cryptic species are typically limited or highly uncertain, leaving their distributions poorly resolved and hampering conservation. This can apply to well‐studied species, and increased survey effort and/or novel methods are required to improve distribution data. Here, we paired species distribution modelling (SDM) with decision tools to direct surveys for the critically endangered Leadbeater's possum (Gymnobelideus leadbeateri) outside its current restricted range. We also assessed survey areas for their suitability to host translocations. Location: Victoria, Australia. Method: We used both recent and historic records (now out of range and spatially uncertain) of Leadbeater's possum to build SDMs using MaxEnt. The SDMs informed an initial multi‐criteria decision analysis (MCDA) that enabled prioritization of 80 survey sites across seven forest patches (13–145 km outside the known range), which we surveyed using camera traps. Site and vegetation data were used in a post‐survey MCDA to rank their potential translocation suitability. Results: The SDM predictions were consistent with the species' ecology, identifying cold areas with high rainfall that had not recently burnt as suitable. The spatial uncertainty of records did not exert a strong influence on either model predictions or the ranking of patches for surveys. Camera trap surveys yielded records of 19 native species, with Leadbeater's possum detected in only one survey patch, 13 km outside of its previously known range. The post‐survey MCDA identified three forest patches as potentially suitable for conservation translocations, and these priorities were not sensitive to the decision criteria used. Main conclusions: The approach outlined here prioritized survey effort over a large area, resulting in detection of Leadbeater's possum in one new patch. The potential translocation sites identified could present an important risk‐spreading measure for the species given the threat posed by bushfire. Combining SDMs and decision tools can help target surveys and guide subsequent conservation strategies.

opencc-zeroJan 2022View details →

Figure 3 in Uvariopsis dicaprio (Annonaceae) a new tree species with notes on its pollination biology, and the Critically Endangered narrowly endemic plant species of the Ebo Forest, Cameroon

Figure 3 Uvariopsis dicaprio. (A) habit, cauliflorous inflorescences on trunk; (B) leafy branch, one season's growth; (C) inflorescence, showing pedicel articulations, bracts and bracteoles; (D) flower, with one petal removed to show the staminal dome; (E) detail of sparse hairs on abaxial petal surface; (F) stamen, different views; (G) junction of base of leaf with stem, showing dome-like axillary bud. All drawn from MacKinnon 51 (K) by MEG GRIFFITHS. Full-size DOI: 10.7717/peerj.12614/fig-3

Figure 4 in Uvariopsis dicaprio (Annonaceae) a new tree species with notes on its pollination biology, and the Critically Endangered narrowly endemic plant species of the Ebo Forest, Cameroon

Figure 4 Global distribution of Uvariopsis dicaprio, together with U. korupensis and U. submontana. Full-size DOI: 10.7717/peerj.12614/fig-4

Figure 1 in Uvariopsis dicaprio (Annonaceae) a new tree species with notes on its pollination biology, and the Critically Endangered narrowly endemic plant species of the Ebo Forest, Cameroon

Figure 1 Uvariopsis dicaprio. Cauliflorous inflorescences on trunk. Photo Lorna MacKinnon. Full-size DOI: 10.7717/peerj.12614/fig-1

Figure 2 in Uvariopsis dicaprio (Annonaceae) a new tree species with notes on its pollination biology, and the Critically Endangered narrowly endemic plant species of the Ebo Forest, Cameroon

Figure 2 Uvariopsis dicaprio. Trunk apex with cauliflorous flowers and canopy. Photo Lorna MacKinnon. Full-size DOI: 10.7717/peerj.12614/fig-2

Figure 7 in Taxonomic revision of the threatened African genus Pseudohydrosme Engl. (Araceae), with P. ebo, a new, critically endangered species from Ebo, Cameroon

Figure 7 Pseudohydrosme ebo (A–D from van der Burgt 2377, K, YA; E from Morgan 25, K,YA). (A) Primary lateral division (one of three divisions) of leaf-blade, with petiole folded, behind; (B) seedling (probably in first year); (C) seedling plant (probably in third or later year); (D) seedling leaf-blade (pre-mature); ((E) obique view (B) and (F) from above); trilobed stigma. Drawn by Andrew Brown. Full-size DOI: 10.7717/peerj.10689/fig-7

Figure 3 in Taxonomic revision of the threatened African genus Pseudohydrosme Engl. (Araceae), with P. ebo, a new, critically endangered species from Ebo, Cameroon

Figure 3 Global distribution of the species of the African genus Pseudohydrosme. Red dot = P. buettneri; black dots= P.gabunensis (location not available for Congo specimen); blue dot = P. ebo. Full-size DOI: 10.7717/peerj.10689/fig-3

Figure 6 in Taxonomic revision of the threatened African genus Pseudohydrosme Engl. (Araceae), with P. ebo, a new, critically endangered species from Ebo, Cameroon

Figure 6 Pseudohydrosme ebo (van der Burgt 1888, K, YA). Drawing of flowering plant. ((A) ventral side view and (B) oblique side view) habit, rhizome and inflorescences; (C) inflorescence, longitudinal section, showing spadix from base to apex with sparse female flowers, partially naked axis of female zone, separated by naked axis from the densely flowered, male zone; (D) group of three stamens, ventral side view; (E) stamen; (F) stamen, transverse section; (G) female flower, entire, side view; (H) female flower, longitudinal section; (I) ovary, transverse section. Drawn by Andrew Brown. Full-size DOI: 10.7717/peerj.10689/fig-6

Figure 2 in Taxonomic revision of the threatened African genus Pseudohydrosme Engl. (Araceae), with P. ebo, a new, critically endangered species from Ebo, Cameroon

Figure 2 Pseudohydrosme ebo (van der Burgt 2377, K, YA). Photo of plant in leaf, in habitat, Ebo forest, December, 2019. Photo by Xander van der Burgt. Full-size DOI: 10.7717/peerj.10689/fig-2

Figure 5 in Taxonomic revision of the threatened African genus Pseudohydrosme Engl. (Araceae), with P. ebo, a new, critically endangered species from Ebo, Cameroon

Figure 5 Pseudohydrosme gabunensis. Photo of flowering, leafless plant cultivated at University of Vienna Botanic Garden (courtesy of David Prehsler). Full-size DOI: 10.7717/peerj.10689/fig-5

Figure 1 in Taxonomic revision of the threatened African genus Pseudohydrosme Engl. (Araceae), with P. ebo, a new, critically endangered species from Ebo, Cameroon

Figure 1 Pseudohydrosme ebo (van der Burgt 1888, K, YA). Photo of flowering, leafless plant at Ebo forest, October 2015. Photo by Xander van der Burgt. Full-size DOI: 10.7717/peerj.10689/fig-1

Figure 4 in Taxonomic revision of the threatened African genus Pseudohydrosme Engl. (Araceae), with P. ebo, a new, critically endangered species from Ebo, Cameroon

Figure 4 Pseudohydrosme buettneri (Buettner 519, B). Drawing of flowering plant. (A) Habit, rhizome and inflorescences; (B) spadix after removal of spathe showing from base to apex, female, male and staminodal flowers; (C and D) paired stamens, side view; (E) paired stamens flowers, transverse section; (F and G) staminodes, sterile male flower; (H) female flower, entire, side view; (J) female flower, longitudinal section. Reproduced from protologue, (Engler, 1892: taf. XVII). Drawn by Josef Pohl. Full-size DOI: 10.7717/peerj.10689/fig-4

Fig. 5 in Two new remarkable and endangered catfish species of the genus Cambeva (Siluriformes, Trichomycteridae) from southern Brazil

Fig. 5. Cambeva betabelardense sp. nov., holotype (UFRJ 6995), 42.7 mm SL. A. Left lateral view. B. Dorsal view. C. Ventral view.

Fig. 3 in Two new remarkable and endangered catfish species of the genus Cambeva (Siluriformes, Trichomycteridae) from southern Brazil

Fig. 3. Map of geographical distribution of Cambeva alphabelardense sp. nov. and C. betabelardense sp. nov.

Fig. 1 in Two new remarkable and endangered catfish species of the genus Cambeva (Siluriformes, Trichomycteridae) from southern Brazil

Fig. 1. Cambeva alphabelardense sp. nov., holotype (UFRJ 6990), 43.4 mm SL. A. Left lateral view. B. Dorsal view. C. Ventral view.

Fig. 2. Osteological structures. A–C in Two new remarkable and endangered catfish species of the genus Cambeva (Siluriformes, Trichomycteridae) from southern Brazil

Fig. 2. Osteological structures. A–C. Cambeva alphabelardense sp. nov., paratype (UFRJ 6993). D–F. Cambeva betabelardense sp. nov., paratype (UFRJ 6996). A, D. Mesethmoidal region and adjacent structures, left and middle portions, dorsal view. B, E. Left jaw suspensorium and opercular series, lateral view. C, F. Parurohyal, ventral view. Abbreviations of structures indicated by arrows are: amp = anteroventral metapterygoid process; doe = dorsal opercular expansion; iap = anterior projection of interopercle. Heavier stippling represents cartilaginous areas. Scale bar: 1 mm.