Biology of Flowering of Some Species of the Genus Phlomoides Moench

The article presents the biology of flowering and the daily dynamics of flowering of two species from the Lamiaceae family: ph. anisochila va ph. sogdiana of the distribution out in the Nuratau Mountains range.

Endemic Amphibians and Their Distribution in China

Amphibians are good indicators of ecosystem health. Updating the information of endemic species in time and understanding their spatial distributions are necessary for the development of integrative conservation strategies and the elucidation of geographic patterns of amphibians. We analyzed the diversity and distributions of the endemic amphibians in China based on a database of specimen records, recently published literature, and field surveys. Two hundred and sixty two endemic species of amphibians, belonging to 59 genera in 12 families and two orders, are recognized. They account for 67% of the total number of amphibian species in China, with the family Megophryidae possessing the largest number of endemics. There are also 17 genera endemic to China. Across provinces, the species richness of endemics shows five levels with a hierarchical diversification. Sichuan has the largest number of endemics, while Heilongjiang and Jilin have no endemic species. Alternatively, whether on the level of endemic genus or species, the highest diversity occurs in the Western Mountains and Plateau Subregion. The distribution ranges of most endemic species cover ≤ 4 provinces or zoogeographic subregions. Additionally, the species richness of endemics along an elevational gradient shows a bell-shaped pattern with the peak around 800 m. Most endemic species are distributed in areas of low to mid elevation(c. 700–1 500 m), while 36 species are distributed up to 3 000 m. Endemic species richness decreases with increasing of elevation range. Species at mid elevations display large range sizes, while species at lower and higher elevations exhibit smaller ranges. Our results are to be beneficial for further exploration of the underlying mechanisms of distributional patterns of amphibians in China. This study highlights a need to promote conservation programs for Chinese endemic amphibians due to their narrow distribution ranges and potential threats.

Phylogenetic relationship,biogeography,and conservation genetics of endangered Fraxinus chiisanensis(Oleaceae),endemic to South Korea

Endemic plants are important for understanding phylogenetic relationships,biogeographical history,and genetic variation because of their restricted distribution and their role in conserving biodiversity.Here,we investigated the phylogenetic relationships of the Korean endemic Fraxinus chiisanensis by reconstructing the molecular phylogeny of Fraxinus based on two nuclear DNA(nrITS and phantastica)and two chloroplast DNA(psbA-trnH and rp132-trnL)regions.Within our fossil-calibrated phylogenetic framework,we also inferred the biogeographical history of F.chiisanensis.To provide a scientific basis for the conservation of F.chiisanensis,we determined the levels of genetic diversity and genetic differentiation in this species.Combining information from nuclear and chloroplast DNA sequence data,our molecular phylogenetic analyses identified F.chiisanensis as a genetically distinct unit from its sister group,Fraxinus platypoda from Japan.Our molecular dating analyses using nuclear and chloroplast DNA data sets show F.chiisanensis diverged from its sister F.platypoda in the Early or Middle Miocene and differentiated in the Late Miocene on the Korean Peninsula.Our results suggest that the divergence of F.chiisanensis was associated with the submergence of the East China Sea land bridge and enhanced monsoons in East Asia.When compared to F.platypoda,F.chiisanensis exhibits low genetic diversity within populations and high genetic differentiation among populations.These results help us to understand the evolutionary history of F.chiisanensis and to develop a conservation strategy for this species.

Karyomorphology of three endemic plants(Brassicaceae:Euclidieae and Arabideae)from the Qinghai-Tibet Plateau and its significance

In the paper,chromosome number and karyotype of three endemic genera from China are reported for the first time.Our results show that Anzhengxia yechengnica has a karyotype formula2 n=2 x=14=6 m+8 sm and belongs to Stebbins-3 A;Shangrilaia nana karyotype formula is2 n=2 x=14=10 m+4 sm(2 sat) and belongs to Stebbins-1 A;Baimashania pulvinata karyotype formula is 2 n=2 x=16=12 m(2 sat)+4 sm and belongs to Stebbins-1 A.Anzhengxia and Shangrilaia are monospecific genera belonging to tribe Euclidieae and both have a basic chromosome x=7.Baimashania,which belongs to tribe Arabideae,has two species which have a basic chromosome x=8.The implications of these cytological data are compared with morphological support and the implications for each tribe are discussed.We also summarize chromosomal number variation and its systematic implications of two tribes from the Qinghai-Tibet Plateau.

Main environmental variables influencing the abundance of plant species under risk category

Determining climatic and physiographic variables in Mexico’s major ecoregions that are limiting to biodiversity and species of high conservation concern is essential for their conservation.Yet,at the national level to date,few studies have been performed with large data sets and crossconfirmation using multiple statistical analyses.Here,we used 25 endemic,rare and endangered species from 3610 sampling points throughout Mexico and 25 environmental attributes,including average precipitation for different seasons of the year,annual dryness index,slope of the terrain;and maximum,minimum and average temperatures to test our hypothesis that these species could be assessed with the same weight among all variables,showing similar indices of importance.Our results using principal component analysis,covariation analysis by permutations,and random forest regression showed that summer precipitation,length of the frost-free period,spring precipitation,winter precipitation and growing season precipitation all strongly influence the abundance of tropical species.In contrast,annual precipitation and the balance at different seasons(summer and growing season)were the most relevant variables on the temperate region species.For dry areas,the minimum temperature of the coldest month and the maximum temperature of the warmest month were the most significant variables.Using these different associations in different climatic regions could support a more precise management and conservation plan for the preservation of plant species diversity in forests under different global warming scenarios.

Diversity Assessment of an Endemic Carpinus oblongifolia(Betulaceae)Using Specific-Locus Amplified Fragment Sequencing and Implications for Conservation

Carpinus oblongifolia is an endemic species and the extant wild populations show a fragmentation distribution in the Baohua Mountain of Jiangsu Province in eastern China.Understanding of genetic diversity plays an important role in C.oblongifolia survival and sustainable development.The wild C.oblongifolia population was artificially divided into four subpopulations according to the microhabitats,and another two subpopulations were constructed by progeny seedlings cultivated with the mature seeds.Then,the leaf buds of 80 individuals from six subpopulations were sampled to develop single nucleotide polymorphisms(SNPs)using specific-locus amplified fragment sequencing(SLAF-seq).Based on these SNPs,we aimed to characterize the genetic diversity and population structure of C.oblongifolia and provide an illumination and reference for effective management of such a small endemic population.The level of genetic diversity was low at the species level,and the progeny subpopulations had a relatively higher genetic diversity than the wild subpopulations.This may be attributed to a high gene flow and an excess heterozygosity to reduce the threat of genetic drift-based hazards.Moreover,the progeny subpopulations had the ability to form new clusters and a great contribution to the genetic structure variation of C.oblongifolia.These results will assist with the development of conservation and management strategies,such as properly evacuating competitive trees to provide more chance for pollen and seed flow in situ conservation,and establishing sufficient seedling plantlets under laboratory conditions for reintroduction to enlarge the effective population size.

Morphological Variation in the Martinican Subspecies White-Breasted Thrasher (<i>Ramphocinclus brachyurus brachyurus</i>)

The White-breasted Thrasher (Ramphocinclus brachyurus) is the smallest passerine bird in the Mimids family. Ranked as “endangered” in the IUCN list, the demographic distribution of this species is spread unevenly across two islands in the Lesser Antilles. The Saint-Lucian subspecies, Ramphocinclus brachyurus sanctaeluciae, was estimated to number between 1200 and 1700 individuals, whereas the Martinique subspecies, Ramphocinclus brachyurus brachyurus, was estimated at between 200 and 400 individuals. As an endemic rare species with a high risk of extinction, the Martinique subspecies should be regarded as a conservation priority. The small size of the Martinique subspecies population, its restricted geographical range, and its narrow habitat tolerance make it quite difficult to study. The variability of morphological traits in this subspecies has not been biostatistically analyzed recently. In order to update knowledge and fill in any gaps, we have used the morphometric approach to study the morphological variability of the Martinique subspecies. The study site is a small peninsula located in the northeast of the island of Martinique (French West Indies) known as “la Caravelle”. We captured 63 White-breasted Thrashers which were marked, measured, and sexed before being released. We did not observe any significant differences between the sexes, signifying an absence of sexual dimorphism. However, we were able to observe a significant variation in morphological traits between individuals measured inside and outside the national protected area of Caravelle. The body mass-tarsus ratio was equal at both sampled sites, something which could potentially be a clue to the bird’s adaptation to different habitats.

Intensities of human disturbance dictate the floral diversity in tropical forest:the case of a secondary forest in Benguet, Philippines

This study inventoried the floral diversity of a secondary forest in Tuba,Benguet,Philippines as affected by different intensities of human disturbance.This study is unique from other land use studies in Southeast Asia in having conventional farms as the most disturbed land use while other sites have oil palm plantations.A total of 267 species belonging to 222 genera and 78 families was documented.Results showed that the level of human disturbance is the major factor affecting the floral diversity while the effect of elevation is secondary.The level of human disturbance is significantly associated with species richness,species composition,dominant species and biodiversity indices.Greater human disturbance,as in the case of conventional farms,results in lower species richness,predominantly weed composition,dominant weed species and lower biodiversity indices.On the other hand,lesser human disturbance(as in the case of secondary forest)leads to higher species richness,greater native species composition,dominance of indigenous species,and higher diversity indices.The most disturbed land use experienced the greatest loss of species richness,change in floristic composition and vegetation structure,as well as a shift from native to alien-dominated plant communities.These results showed that the effect of land use change is not limited to species richness but also to species composition,dominant species and biodiversity indices.Locally,the study is an important baseline data for biodiversity conservation of the Marcos Highway Watershed Forest Reserve.

The RAPD techniques used to assess the genetic diversity in Draba dorneri,a critically endangered plant species

A successful management and preservation of the natural populations is depending on accurate assessment of genetic diversity. Knowledge of genetic diversity within a population is important for the conservation of the species. Our aim was to assess the genetic diversity in Draba dorneri Heuff. population (Brassicaceae family)—an endemic plant species of conservative interest using Random Amplified Polymorphic DNA (RAPD) technique. The plant species is strictly protected at national level as well as at international level through “Convention on the Conservation of European Wildlife and Natural Habitats”, Bern, 1979 European Council. In this study, a total of 52 primers were scored initially. A total of 77 repro- ducible bands with an average of 6.41 bands per primer were obtained from the 12 primers selected. A cluster analysis (UPGAMA) was used to generate a dendrogram based on Dice coefficient. We found 67% similarity between the samples from the two analyzed slopes. Comparing with other rare plants species, our data revealed a higher level of genetic diversity in D. dorneri population in Retezat Mountains.

Overview of priorities,threats,and challenges to biodiversity conservation in the southern Philippines

Human activities have severely impacted on many species and ecosystems.Thus,understanding the local biodiversity situation is crucial for implementing effective biodiversity conservation interventions.Mindanao in the southern Philippines is home to various unique species,particularly in its pristine ecosystems.However,the available biodiversity data for many terrestrial vertebrates and key areas remain incomplete.To address this issue,we synthesized published literature related to biodiversity from 2000 to 2022 in Mindanao.Moreover,this analysis used four key terrestrial vertebrates(amphibians,reptiles,birds,and mammals)in Mindanao as research objects.According to our findings,there was a significant and positive correlation between the number of biodiversity studies and species recorded.In terms of species richness,birds were the most recorded group(n=334 spp.),followed by reptiles(n=108 spp.),mammals(n=70 spp.),and amphibians(n=52 spp.).We also found that the number of endemic and threatened species varies geographically and across taxonomic groups.Yet,we discovered a significant disparity in the information available on biodiversity in different provinces of Mindanao.For example,the western provinces of Mindanao have had no record of biodiversity for more than two decades.Furthermore,we found that the changes in tree cover loss were consistent with biodiversity records,but this correlation is only significant for birds.Finally,we highlighted some critical threats and challenges to biodiversity,including deforestation,agricultural expansion,mining,and their impact on biodiversity conservation in Mindanao.Our findings suggested that biodiversity conservation should focus not only on areas with high levels of biodiversity but also on areas lacking biodiversity information.To do this,we call for strengthening collaboration among various institutions and digitizing and centralizing of information related to biodiversity.By gaining a deeper understanding of biodiversity in Mindanao,we can better and sustainably protect critical ecosystems in this region from the increasing threats posed by human activities.

An Annotated List of Lizards(Sauria: Squamata) Recorded from the People's Republic of China

From the perspectives of biodiversity conservation and management, there is an urgent need to have at hand current synopses of classification and distributions of species. In this paper, we review and summa rize the classifica tions, Chinese a nd English names, type specimens, type localities and distributions of China’s lizard fauna to promote scientific exchange and species conservation among relevant people in China and internationally. As of December 31, 2020, a total of 230species of lizard, belonging to 44 genera and 12 families,have been recorded from China, including 4 invasive species: 2 in the family Gekkonidae, 1 in Iguanidae and one in Dactyloidae. There are 115 endemic species, accounting for 50% of this group. The proportion of endemic species to China was the highest in the family Eublepharidae(84.62%), and the number of endemic species to China was the highest in the family Agamidae(42 species). The species distributions and classifica tion in the “Fa una Sinica(Reptilia 2): Squamata(Lacertilia)” were updated.Among the provincial administrative units, there is a larger number of species in the southern provinces, such as Yunnan, Guangdong, Guangxi and Taiwan. Sichuan, Yunnan, and Taiwan harbour relatively more endemic species than others. A total of 154 species of lizards were first discovered in China, and the type localities of these species are concentrated in Yunnan, Taiwan, Tibet, Xinjiang, and Sichuan.

Floristic composition and structure of the Kibate Forest along environmental gradients in Wonchi,Southwestern Ethiopia

Dry evergreen montane forests in Ethiopia are severely threatened.The status of species composition and structure of forest vegetation are important indicators to understand the trends of threats on local plant communities.In the present study,we examined the floristic composition and structure of the Kibate Forest,Wonchi Highland,Ethiopia along environmental gradients.Sixty-six(30 m×30 m)plots were established every 100 m interval along altitudinal gradients(2811‒3073 m a.s.l.)in five transect lines for vegetation and environmental data collection.In total,125 vascular plant species belonging to 104 genera and 52 families were identified.Eighteen species(14%)were endemic to Ethiopia and Eritrea.The two most dominant families,Asteraceae(29 species)and Lamiaceae(eight species)accounted for 30%of the total number of species.The highest number of species(54%)was herbs.Four major community types(viz.,Olinia rochetiana-Myrsine melanophloeos,Ilex mitis-Galiniera saxifraga,Erica arborea-Protea gaguedi,and Hagenia abyssinica-Juniperus procera)were identified.The highest species richness,evenness,diversity,and importance value index were in community types 2 and 4.About 82%of the species and all endemic taxa except five were recorded in these two community types.The most dominant woody species were O.rochetiana,E.arborea,Olea europaea subsp.cuspidata,Myrica salicifolia,I.mitis var.mitis,and H.abyssinica with different patterns of population structure.The results show that there was a weak correlation between species richness and altitude.Our findings confirm that environmental variables both with interactions(such as altitude)and without interactions(such as livestock grazing)significantly(p<0.05)affect species richness.Anthropogenic activities and overgrazing by livestock appear to be the main threat in community types 2 and 3.Urgent management practices and conservation measures such as prohibiting forest clearing and overgrazing and planting indigenous trees through community participation should be considered in community types that are rich in endemic species but are highly threatened.

Hummingbird-plant interactions in Chile:An ecological review of the available evidence

Hummingbird species have closely evolved with the plants they feed on,which is confirmed by their often tight ecological relationships in natural settings.Hummingbird-plant interactions are of interest for research areas such as ecology,evolution,and even agriculture,as they usually inform on the conservation status of interacting species assemblages,and its disappearance may precede the population extinction of the species involved in the interaction.In Chile,there are nine hummingbird species,which interact with a large and diverse number of angiosperm species in forest,desert,and mountain range environments.The motivation to perform this review is to systematize the available information regarding the flowering plants visited by hummingbird species in Chile,to present some basic plant-hummingbird pollination network metrics,and on this basis to identify the components of the plant-hummingbird relationships in need of further research.A plant-hummingbird metanetwork revealed a low connectance value,low niche overlap,and strong modularity among species.However,the fact that most species present a strong allopatric distribution across Chile,suggests that network structure results mostly from the history of colonization rather than from ecological organization.Nowadays,the main threats to Chilean hummingbirds are anthropogenic disturbance and climate change,which disrupt hummingbird-plant interactions,leading to unpredictable ecological consequences at the community level.Long periods of drought may reduce the resource base for hummingbirds,with dramatic consequences for the maintenance of bird and plant populations.

PRELIMINARY REPORT ON THE PELAGIC POLYCHAETES FROM THE SOUTH SHETLAND ISLANDS,BISCOE ISLANDS AND THEIR VICINITIES

This report provides a result obtained by the First Chinese Antarctic and Southern Ocean Expedition. Specimens were collected by investigators of the Second Institute of Oceanography, SOA, with plankton nets in February and March of 1985 from the South Shetland Islands, the Biscoe Islands and their vicinities, between 61°15'20S-65°30'16S, 56°18'72W-67°59'45W. Eight species belonging to 5 genera in 4 families have been identified, of which 4 species, namely Maupasia coeca Viguier, Rhyn-chonerella petersii (Langerhans), Rhynchonerella bongraini (Gravier), and Tomopteris planktonis Aps-tein are recorded for the first time from the South Shetland Islands and 2 species, namely Rhynchonerella bongraini (Gravier), and Tomopteris carpenteri Quatrefages are endemic species of Antarctica.

Forest Resources Depletion: An Ecological Model for Biodiversity Preservation and Conservation in Cote D’Ivoire

The biodiversity-rich primary forest of Cote d’Ivoire has been substantially converted into a mosaic of secondary forests, cash and lumber plantations, food crops, and timber plantations, food crops, and wasteland. Deforestation started even before independence but has increased dramatically in the last three decades, resulting in the loss of most of the country’s biodiversity. It is essential to have information about the condition of the country’s natural resources following many human pressures. This research aimed to examine the Cote d’Ivoire Phytogeographical zones to understand the state of the wood’s ad wildlife in 2020 about the anthropic pressure on the whole Ivorian land. The Land-Use Planner approach has been used as a tool for creating a model for preserving biodiversity. There are 15 endangered tree species recognized, five each phytogeographical zone. Buffaloes are seen and distributed in the West and north of Cote d’Ivoire, duikers are observed in nearly all phytogeographical zones, elephants are observed in the West and North. At the same time, harnessed guibs are observed and dispersed across the nation, according to the findings. In terms of endangered tree species, the most frequent endangered trees species in the country’s south are Strombosia pustulata (6.2%), Diospyros mannii (5.1%), Protomegabaria stapfiana (3.7%), Musanga cecropiodes (3.6%), and Xylopia quintasii (3.2%). In the Middle Tectona grandis accounts for (11.8%), Nesogordonia papaverifera accounts for (4.2%), Cedrela odorata accounts for (3.7%), and Gmelia Arborea accounts for (2.8%). In the North, Isoberlinia doka accounts for (10.3%), Upaca togoenisis accounts for 8.9%, Anogeisssus leicarpa accounts for (5.1%), Pterocarpus erinaceus accounts for (4.6%), and Pericopsis laxiflora accounts for (3.9%). In reforested woods, the volume of merchantable wood timber of the P1, P2, and P3 categories per hectare is more significant than in wild forests. We find that biodiversity is severely endangered. Endemic species have decreased due to human activities like agriculture and logging, which are the root causes of deforestation and animal and plant biodiversity loss.

Types of Fish in Need of Protection in Fishing Reservoirs of Bukhara Region

Fishery reservoirs in Bukhara region are located in the lower reaches of the Zarafshan River and are one of the most important reservoirs in western Uzbekistan. Based on the research conducted in the natural and artificial fishery reservoirs of Bukhara region and the analysis of the literature on ichthyofauna of the region, it has been identified that 31 species of fish belonging to 6 genera and 12 families are found in the region. Of these 31 species, 23 species are listed in the Red Data Book of the International Union for Conservation of Nature (IUCN) and 5 species in the Red Data Book of the Republic of Uzbekistan.

Atlantic Forest Hotspot: Why We Should Consider Mature Forests a Conservation Priority in the São Paulo Metropolitan Region, Southeastern Brazil

The Atlantic Forest is among the 35 hotspots on the planet, and yet few floristic or structural studies have been conducted on mature forest fragments of that biome in Brazil. In view of this knowledge gap and of the need to further comprehend the importance of conserving mature forests, we surveyed the arboreal component of three little-altered forest remnants from the S?o Paulo metropolitan region (SPMR), southeastern Brazil, and compared our data with the one from other phytosociological studies performed in the region. Mature forests showed a different floristic composition from one of young forests. Overall, the former has a higher number and percentage of threatened and endemic species than the latter, and also a higher exclusivity of occurrence of threatened species. In areas up to twice as smaller, mature forests have 1.5 to 4.3 times more endemic species to the Atlantic Forest and up to 9 times more species threatened with extinction than young forests. These facts, along with the scarcity of remnants of mature forests, led us to consider such forests as hotspots within the Atlantic Forest hotspot in the SPMR, as well as to categorize them as of high relevance for conservation.

Biological Corridors as a Connectivity Tool in the Region of the Great American Chaco:Identification of Biodiversity Hotspots in the Ecoregions of the Paraguayan Chaco

This work presents the main biodiversity hotspots existing in the Paraguayan Chaco and is an update of the results obtained in the first Ecoregional Assessment of the Great American Chaco.These are the results of a series of workshops that included scientific and technical discussions carried out by local experts in zoology,botany,forestry,soil science,and hydrogeology applying a biodiversity vision of 25-30 years for the territory,after overlapping the maps of the first assessment with that of the advance of the changes of land use in the territory.Criteria for detecting biodiversity hotspots were discussed,including:permanent and temporary watercourses,other bodies of water such as fresh and salty lagoons,reserve areas of different categories,as well as important bird areas(IBAs),RAMSAR areas and others,which must be connected in the future,combining the production areas with the conservation of biodiversity.

Downstream Ichthyofauna of the Zarafshan River

The lower reaches of the Zarafshan River are one of the most important watersheds in western Uzbekistan. Based on the research conducted in the lower reaches of the Zarafshan River and the lower Zarafshan watersheds, as well as the analysis of the literature on ichthyofauna of the region, it was determined that currently there are 6 species and 31 species of fish belonging to 12 families.

Living with or Eradicating Poisonous Snakes in Densely Populated Caribbean Islands—A Socio-Ecological Challenge for the French West Indies

The lancehead (Bothrops lanceolatus) is a poisonous snake endemic to Martinique, an island in the Lesser Antilles arc. Today, this snake is on the verge of extinction. The recorded number of snakes killed yearly between 1970 and 2002 decreased by 97%. Despite the production of an antivenom in 1993, the local authorities set up a financial reward to encourage the eradication of lancehead snakes. Today the local population still perceives the snake as a threat, due to its fatal venom and its fierce behaviour. The case study of the lancehead in Martinique highlights the need to develop integrated strategies to conserve species of poisonous snakes on densely populated islands. This requires innovative, cross-sectoral strategies that involve decision-makers working along with multi-disciplinary scientists. Approaching the complexity of ecosystems through the socio-ecological prism implies, conversely, linking up the domains of science and technology, life and environmental sciences, and human and social sciences, through interactions based on sharing common