Light adaptation strategies of Quercus mongolica at different ages in four plantations

This study investigated the allocation strategies of non-structural carbohydrates and functional traits in Quercus mongolica seedlings of different ages under different light conditions. The study took place at the Urban Forestry Demonstration Base in Harbin City, Heilongjiang Province, China. Seedlings of three age classes were collected in two light environments, the forest edge and the forest understory. By measuring specific leaf area, biomass, soluble sugar concentration and starch concentration, we revealed the growth adaptation strategies and responses to different light conditions in Q. mongolica seedlings of different age classes. Our results show that the adaptation strategies of seedlings of different age classes are very different. First, our study showed a strong coordination of soluble sugars between roots, stems, and leaves of 1−2 year old Q. mongolica seedlings, indicating an efficient partitioning of carbon between organs at this age. In 3−4 year old Q. mongolica seedlings, a significant negative correlation was observed between starch in the roots and soluble sugars in the leaves, indicating the transformation of various non-structural carbohydrates. In addition, 5−6 year old seedlings start to increase their investment in the above-ground part to achieve a height advantage. In conclusion, this study improves our understanding of the light adaptation strategies of Q. mongolica seedlings and provides valuable insights for the natural regeneration and management of Q. mongolica forest vegetation

Sustainable forest management beyond the timber-oriented status quo : transitioning to co-production of timber and non-wood forest products—a global perspective

PURPOSE OF REVIEW : This review provides perspectives and insights of forest researchers from four continents representing a range of geo-regions, with examples from diverse and dynamic use of forest products that are undervalued and often misrepresented. A comprehensive discussion of the subject provides special attention to property, tenancy, public goods and access rights to nonwood forest products (NWFP), seen as forest ecosystem services in a framework for forest management decisions. The overall purpose is to provide a logical argument for transitioning to sustainable management of forests for timber and NWFP. RECENT FINDINGS : Multifunctional ecosystem-based approaches are transforming our understanding of forests. The prevailing economic relevance of NWFP for trade and sustenance requires their operative integration into forest management. Integration of NWFP will shift a traditional timber-oriented management paradigm towards an inclusive ecosystem forest management approach. We show that the impact of NWFP resources on livelihoods provides multiple benefits to all sectors of global society. Policy and property rights affect the availability and sustainability of the resource, while regulations, restrictions and prohibitions target the sustainable harvest of NWFP under growing demand. Official reporting of production volumes of NWFP is sparse, erratic or inaccurate due to a complex system that is opaque and with inadequately understood value chains, yet research is underway to better understand all NWFP sectors. SUMMARY : A shift from command-and-control forest management to broader governance schemes is observed, yet despite a growing awareness of their importance, NWFP and their potential for a bio-based economy require more research. A conceptual framework for transitioning to sustainable co-production management of timber and NWFP is presented. Such a transition is needed to ensure long-term forest security, health and resilience.Open Access funding provided by Projekt DEAL. The authors thank the European Commission for support of their research by the past European FP7 project StarTree, grant agreement 311919, the COSTAction FP1203 on NWFPs, as well as the ongoing H2020 Thematic network INCREDIBLE, grant agreement 774632. The BMBF funded SPACES2 project ASAP, grant agreement 01LL1803A, and National Key R&D Program of China grant agreement 2017YFD0600600.https://www.springer.com/journal/40725am2020Plant Production and Soil Scienc

Новые комбинации и названия сосудистых растений Азиатской России.

In this paper, we present nomenclatural novelties required in the course of the preparation of the second, revised version of the checklist of vascular plants of Asian Russia. The first version was published in 2012 (Baikov 2012). At the family level, we accepted the modern classification systems (APG IV for flowering plants, PPG I for lycophytes and ferns, and GPG for gymnosperms). At the genus level, we follow the generic concepts applied for particular taxonomic groups according to the Catalogue of Life (COL; https://www.catalogueoflife.org/), version COL23.5. At the species level, we consistently apply the monotypic species concept (also known in Russia as Komarov’s concept). In total, this paper presents one new nothogenus name (× Sibirotrisetokoeleria Chepinoga nom. nov., Poaceae) and 156 new names in the rank of species, in 28 families: Amaranthaceae Juss. (1 name), Amaryllidaceae J. St.-Hil. (1), Apiaceae Lindl. (2), Asteraceae Bercht. & J.Presl (12), Boraginaceae Juss. (4), Caryophyllaceae Juss. (11), Crassulaceae J. St.-Hill. (3), Cyperaceae Juss. (8), Ericaceae Juss. (2), Fabaceae Lindl. (16), Gentianaceae Juss. (1), Geraniaceae Juss. (1), Juncaceae Juss. (1), Lamiaceae Martinov (1), Menyanthaceae Dumort. (1), Orchidaceae Juss. (1), Orobanchaceae Vent. (1), Papaveraceae Juss. (4), Plantaginaceae Juss. (1), Poaceae Barnhart (49), Polygonaceae Juss. (4), Primulaceae Batsch. ex Borkh. (6), Ranunculaceae Juss. (4), Rosaceae Juss. (5), Salicaceae Mirb. (2), Saxifragaceae Juss. (11), Vitaceae Juss. (1), Zygophyllaceae R. Br. (2 names)

New Species of Chloroidium (Trebouxiophyceae, Chlorophyta) from East Asia

Chlorella-like green algae that reproduce only asexually by immotile autospores or motile zoospores are the most typical inhabitants of non-aquatic environments. They have a simple morphology that hampers their differentiation, but algae of such habit represent a diverse array of lineages, which are mostly in the classes Chlorophyceae and Trebouxiophyceae. One of these lineages is the order Watanabeales (Watanabea clade; Trebouxiophyceae), which comprises 10 genera that share a distinct mode of reproduction through unequally sized autospores. Most of these genera account for a few species that are rarely recorded in nature. In contrast, the genus Chloroidium is one of the most species-rich and widely distributed members of the order. Three strains of coccoid green alga were isolated during a study of soil algae in the temperate monsoon climate zone of Asia. These strains are described here as a new species, Chloroidium orientalis. SSU and ITS rDNA sequence data, morphological characteristics, and life cycle features differentiate these strains from known members of the genus

Pseudocrangonyx borealis Sídorov & Labay & Gontcharov 2020, sp. nov.

Pseudocrangonyx borealis sp. nov. (Figures 2d, 14–17) Diagnosis (female) Slender, small-sized amphipod of typical pseudocrangonyctid habitus (sexual dimorphism unknown); eyes absent; body unpigmented (whitish in colour); dorsal surface of body segments smooth, teretial; last mesosomal segment (pereonite VII) and metasomal segments (pleonites I– III) bearing 2 fine facial setae each; urosomites I– II with 2 facial setae, ecdysial setae absent; interantennal lobe of head short, rounded, inferior antennal sinus roundish; antenna I about 50% length of body; coxal plates I– IV shallow, sub-rectangular (wider than deep), plates V – VII sub-triangular with moderate anterior lobes; posterodistal corners of pleonal plates I– III broadly roundish; palp mandible article 3 with 2 B-setae, 8 D-setae and 3 E-setae; molar of mandible well developed; propodus of gnathopod I much larger than that of gnathopod II; carpus of pereopods III – IV with posterior margin unarmed; pereopod V distinctly shorter; pereopods VI and VII equal, about 45% length of body. Uropod I with 1 basofacial spine-seta. Telson with vestigial notch. Body length 4.5 mm (♀). Material examined Holotype MNHN-IU-2019-3173: ♀ ca. 4.5 mm (oostegites developed, non-setose), RUSSIA, Magadanskaya Oblast, Khasynsky District, basin of the Ola River, Neorchan River, hyporhea, 60.462461, 151.471181, elevation 555 m, leg. E. V. Khamenkova, 10 June 2013. Etymology Species named ' borealis ' (Latin), an adjective that refers to the northern distribution of this species. Gender masculine. Description Female (body 4.5 mm long), MNHN-IU-2019-3173. Head (Figures 2d, 14a–i). Antenna I about 33% longer than antenna II; peduncular articles 1–3 in length ratio 1:0.5:0.3; primary flagellum with 13 articles; aesthetascs present. Antenna II peduncular articles 4 and 5 in length ratio 0.9:1; flagellum with 6 articles; calceoli absent. Left mandible incisor 5-dentate; lacinia mobilis 5-dentate; setal row with 3 serrate setae; palp mandible article 3 is 15% longer than article 2; article 3 with 2 B-setae, 8 D-setae and 3 E-setae. Right mandible incisor 5-dentate; lacinia mobilis bifurcate, with numerous small teeth; molar process triturative, with short accessory seta. Lower lip inner lobes absent; mandibular process brief, roundish. Upper lip without peculiarities. Maxilla I inner plate with 3 plumose setae; outer plate with 7 serrate spines; palp article 2 about 2.2× longer than article 1, bearing 3 spines on apex. Maxilla II inner plate with 3 plumose setae in oblique row. Maxilliped inner plate with 2 simple spines and 3 long simple setae apically; outer plate with a row of long simple setae on lateral and apical margins. Pereion (Figures 2d, 15a, b, 16a–e). Gnathopod I carpus (article 5) 0.6× as long as propodus, rastellate setae absent; palm oblique, defining angle indistinct, palm with cutting margin crenulated, palm with 13 distally notched robust spines in two rows; dactylus, inner margin dentate, with 1 seta along outer margin. Gnathopod II carpus (article 5) slightly longer than propodus, rastellate setae absent; propodus palm bevelled, defining angle distinct, palm with cutting margin crenulated, palm with 5 distally notched robust setae in two rows and 7 distally notched robust setae near defining angle; dactylus similar to that of gnathopod I. Pereopods III and IV sub-similar; bases sub-linear, with a row of long and short setae on posterior margin; carpus (article 5) as long as propodus, posterior margin naked. Pereopod VI as long as pereopod VII. Ventral surface of pereonites II–VII bearing sternal humps (blisters). Coxal gills II–VI stalked and saccular. Oostegites II–V on gnathopod II and pereopods III–V developed, without marginal setae. Pleon (Figures 2d, 17a–h). Epimera I–III (pleonal plates) posterior corners broadly roundish, armed with 1 stiff seta each; ventral margin of plate I without setae, plates II and III with 1 seta each. Pleopods I–III peduncular articles with 2 coupling setae (retinacles). Uropod I peduncle with 5 spines on outer margin, 3 spines on inner margin, 1 basofacial spine-seta; outer ramus 0.6× as long as inner ramus, about 50% length of peduncle; inner ramus armed with 6 spines on each margin and with 4 long thin setae on ventral face; outer ramus unarmed; rami with 5 spines on apices, one or two of them very long. Uropod II peduncle with 2 spines on outer margin and 3 spines on inner margin; outer ramus 0.8× as long as inner ramus; inner ramus as long as peduncle, armed with spines on both margins; outer margin of outer ramus with 2 spines; rami with 5 spines on apices, one or two of them long. Uropod III uniramous; peduncle with 1 spine and 1 seta on distal margin; proximal article of outer ramus 3.0× as long as peduncle, bearing 4 sets of spines on inner and outer margins; terminal article 0.2× as long as proximal article, with 3 setae on apex. Telson 1.4× as long as uropod III peduncle; 0.5× longer than broad, apical margin with vestigial notch; tips of lobes with 1 long spine apically each.Published as part of Sídorov, Dmitry, Labay, Vjacheslav & Gontcharov, Andrey, 2020, New species and records of the subterranean amphipod genus Pseudocrangonyx Akatsuka and Komai (Crustacea: Pseudocrangonyctidae), representing the northernmost distribution of the group, pp. 1759-1795 in Journal of Natural History 54 (27 - 28) on pages 1778-1779, DOI: 10.1080/00222933.2020.1820092, http://zenodo.org/record/503063

Pseudocrangonyx myaochanicus Sídorov & Labay & Gontcharov 2020, sp. nov.

Pseudocrangonyx myaochanicus sp. nov. (Figures 2c, 11–13) Diagnosis (female) Slender, small-sized amphipod of typical pseudocrangonyctid habitus (sexual dimorphism unknown); eyes absent; body unpigmented (whitish in colour); dorsal surface of body segments smooth, teretial; last mesosomal segment (pereonite VII) and metasomal segments (pleonites I– III) bearing 2 fine facial setae each; urosomite I with 2 facial setae and urosomite II with 2 notched facial spines, ecdysial setae absent; interantennal lobe of head short, rounded, inferior antennal sinus sub-quadrate; antenna I about 50% length of body; coxal plates I– IV shallow, sub-rectangular (wider than deep), plates V – VII sub-triangular with broad anterior lobes; posterodistal corners of pleonal plates I– III broadly roundish; palp mandible article 3 with 1 B-seta, 6 D-setae and 3 E-setae; molar of mandible well developed; propodus of gnathopod I much larger than that of gnathopod II; carpus of pereopods III – IV with posterior margin armed; pereopod VII about 50% length of body. Uropod I with 1 basofacial spine-seta. Telson with vestigial notch. Body length 3.2 mm (♀). Material examined Holotype MNHN-IU-2019-3172: ♀ ca. 3.2 mm (oostegites developed, non-setose), RUSSIA, Khabarovsky Kray, Solnechny District, Myao-Chan mountain range, 8 km W of Gorny, Levaya Silinka River, hyporhea, 50.699850, 136.359167, elevation 713 m, leg. E.A. Makarchenko, 28 July 2006. Etymology Species named ' myaochanicus ' (Latin), an adjective that refers to the Myao-Chan range where it was collected. Gender masculine. Description Female (body 3.2 mm long), MNHN-IU-2019-3172. Head (Figures 2c, 11a–j). Antenna I about 45% longer than antenna II; peduncular articles 1–3 in length ratio 1:0.6:0.4; primary flagellum with 14 articles; aesthetascs present. Antenna II peduncular articles 4 and 5 in length ratio 0.9:1; flagellum with 5 articles; calceoli absent, but with slender semitransparent, rod-like structures (probably aesthetascs). Left mandible incisor 5-dentate; lacinia mobilis 5-dentate; setal row with 3 serrate setae; palp mandible article 3 as long as article 2; article 3 with 1 B-seta, 6 D-setae and 3 E-setae. Right mandible incisor 5-dentate; lacinia mobilis bifurcate, with numerous small teeth; molar process triturative, with short accessory seta. Lower lip inner lobes absent; mandibular process broad, roundish. Upper lip without peculiarities. Maxilla I inner plate with 3 plumose setae; outer plate with 7 serrate spines; palp article 2 about 2.0× longer than article 1, bearing 3 spines on apex. Maxilla II inner plate with 3 plumose setae in oblique row. Maxilliped inner plate with 2 simple spines and 4 long simple setae apically; outer plate with a row of long simple setae on lateral and apical margins. Pereion (Figures 2c, 12a–g). Gnathopod I carpus (article 5) 0.4× as long as propodus, rastellate setae absent; palm oblique, defining angle indistinct, palm with cutting margin crenulated, palm with 8 distally notched robust spines in two rows; dactylus, inner margin dentate, with 1 seta along outer margin. Gnathopod II carpus (article 5) slightly shorter than propodus, rastellate setae absent; propodus palm bevelled, defining angle distinct, palm with cutting margin crenulated, palm with 7 distally notched robust setae in two rows and 5 distally notched robust setae near defining angle; dactylus similar to that of gnathopod I. Pereopods III and IV sub-similar; bases sub-linear, with a row of long and short setae on posterior margin; carpus (article 5) as long as propodus, posterior margin with seta. Pereopod VII dactylus with 2 stiff setae on inner margin. Coxal gills II–VI stalked and saccular. Oostegites II–V on gnathopod II and pereopods III–V developed, without marginal setae. Pleon (Figures 2c, 13a–h). Epimera I–III (pleonal plates) posterior corners broadly roundish, armed with 1 stiff seta each; ventral margin of plate I without setae, plate II with 1 seta, plate III with 3 setae. Pleopods I–III peduncular articles with 2 coupling setae (retinacles). Uropod I peduncle with 4 spines on outer margin, 1 spine on inner margin, 1 basofacial spine-seta; outer ramus 0.6× as long as inner ramus, about 50% length of peduncle; inner ramus armed with 3 spines on inner margin and with 2 long thin setae on ventral face; outer ramus with 2 spines; rami with 5 or 6 spines on apices, one of them very long. Uropod II peduncle with 2 spines on outer margin and 1 spine on inner margin; outer ramus 0.75× as long as inner ramus; inner ramus 1.2× as long as peduncle, armed with 3 spines on inner margin; outer margin of outer ramus with 2 spines; rami with 5 spines on apices, one of them long. Uropod III uniramous; peduncle with 4 spines on distal margin; proximal article of outer ramus 2.3× as long as peduncle, bearing 3 sets of spines on inner and outer margins; terminal article 0.2× as long as proximal article, with 3 setae on apex. Telson 1.4× as long as uropod III peduncle; 0.3× longer than broad, apical margin with vestigial notch; tips of lobes with 2 spines apically each.Published as part of Sídorov, Dmitry, Labay, Vjacheslav & Gontcharov, Andrey, 2020, New species and records of the subterranean amphipod genus Pseudocrangonyx Akatsuka and Komai (Crustacea: Pseudocrangonyctidae), representing the northernmost distribution of the group, pp. 1759-1795 in Journal of Natural History 54 (27 - 28) on pages 1772-1775, DOI: 10.1080/00222933.2020.1820092, http://zenodo.org/record/503063

Pseudocrangonyx susunaensis Labay 1999

Pseudocrangonyx susunaensis Labay 1999, p. 64, fig. 6b. – Labay 2001, p. 292, figs 5–7. Distribution and ecology Previously recorded in springs on the Susunajskij Khrebet near Yuzhno-Sakhalinsk (1999, 2001). New record RUSSIA: specimen 11/12-DAS: probably ♀ ca. 4.0 mm (oostegites undeveloped), Sakhalin, Sakhalinskaya Oblast, Korsakovsky District, basin of Tunaicha Lake, upper part of Udarnitsa river, in stomach of salmon, 46.725742, 143.422394, elevation 46 m, leg. S.E. Frenkel, 4 June 2004. Remarks The single specimen of an unspecified gender was found in the stomach contents of a young masu salmon (Oncorhynchus masou) caught on 4 June 2004, at the source of the Udarnitsa River in the extreme southeast of Sakhalin, and showed a weak affinity with P. susunaensis, but appears to be mostly immature and broken.Published as part of Sídorov, Dmitry, Labay, Vjacheslav & Gontcharov, Andrey, 2020, New species and records of the subterranean amphipod genus Pseudocrangonyx Akatsuka and Komai (Crustacea: Pseudocrangonyctidae), representing the northernmost distribution of the group, pp. 1759-1795 in Journal of Natural History 54 (27 - 28) on pages 1788-1789, DOI: 10.1080/00222933.2020.1820092, http://zenodo.org/record/503063

Studies on subterranean amphipod crustaceans of Primory, Russia. Part 1. Three new species of the genus Pseudocrangonyx from springs and other groundwater habitats in far eastern Russia

Sidorov, Dmitry A., Gontcharov, Andrey A. (2013): Studies on subterranean amphipod crustaceans of Primory, Russia. Part 1. Three new species of the genus Pseudocrangonyx from springs and other groundwater habitats in far eastern Russia. Zootaxa 3693 (4): 547-567, DOI: 10.11646/zootaxa.3693.4.