Results 1 to 10 of about 1,538,409 (120)

Impacts of Climate Changes on Geographic Distribution of Primula filchnerae, an Endangered Herb in China

open access: yesPlants, 2023
Primula filchnerae, an endangered plant endemic to China, has drawn people’s attention in recent years due to its ornamental value in flower. It was rarely recorded since being described in 1902, but it was rediscovered in 2009 and is now known from a ...
Xin Jiang   +11 more
doaj   +1 more source

Numerical Investigation of Gas Channel Geometry of Proton Exchange Membrane Fuel Cell [PDF]

open access: yesRenewable Energy Research and Applications, 2020
In present research, a three-dimensional, single phase proton-exchange membrane fuel cell has been simulated numerically. The governing equations have been solved using finite volume scheme and the obtained results have been validated against famous ...
Haleh Sadeghi   +3 more
doaj   +1 more source

Disentangling diversity patterns in Cuban scorpions (Arachnida: Scorpiones)

open access: yesNovitates Caribaea, 2022
The assembly of communities is often viewed as a process involving the dispersal of species from a regional pool. An oceanic island provides a unique opportunity to test such a hypothesis and many others related to the patterns and processes behind ...
André Felipe de Araújo Lira   +3 more
doaj   +1 more source

New findings of light dusky rockfish Sebastes variabilis (Sebastidae) at the eastern coast of Kamchatka

open access: yesИзвестия ТИНРО, 2020
Light dusky rockfish Sebastes variabilis is a rare fish species in the waters at East Kamchatka, rarely recorded in trawl catches. They aggregate in the areas with complicated bottom topography and active water dynamics with the depth from 118 to 316 m ...
Yu. K. Kurbanov
doaj   +1 more source

Floral turnover and climate drive seasonal bee diversity along a tropical elevation gradient

open access: yesEcosphere, 2022
The contribution of seasonality in species communities to elevational diversity of tropical insects remains poorly understood. We here assessed seasonal patterns and drivers of bee diversity in the Eastern Afromontane Biodiversity Hotspot, Kenya, to ...
Fairo F. Dzekashu   +5 more
doaj   +1 more source

Quantitative study of the impact of natural areas of the Markazi Province on pollination based on a distribution modeling approach [PDF]

open access: yesعلوم محیطی, 2023
Introduction: Extracting honey from beehives is one of the economic activities for local communities, which is effective in the direct and indirect employment of villagers and as a result, the sustainable development of these areas. Among the pollinating
Maryam Hasanbigi   +3 more
doaj   +1 more source

Diversity and Distribution of Cyatholaimidae (Chromadorida: Nematoda): A Taxonomic and Systematic Review of the World Records

open access: yesFrontiers in Marine Science, 2022
Nematoda is a very species-rich phylum that has successfully adapted to almost all types of ecosystems. Despite their abundance and ecological importance, the taxonomic knowledge of nematodes is still limited and the identification of species is not ...
Beatriz P. Cunha   +2 more
doaj   +1 more source

The Risk for Novel and Disappearing Environmental Conditions in the Baltic Sea

open access: yesFrontiers in Marine Science, 2021
Future climate biogeochemical projections indicate large changes in the ocean with environmental conditions not experienced at present referred to as novel, or may even disappear. These climate-induced changes will most likely affect species distribution
Thorsten Blenckner   +5 more
doaj   +1 more source

Fecundity of the Far-Eastern flatfishes Pleuronectiformes. 2. Comparative taxonomic analysis: fecundity, abundance and distribution of the species

open access: yesИзвестия ТИНРО, 2017
Comparative analysis is made for absolute, species-specific and total fecundity of 31 flatfish species in the North Pacific from North America to the Japan Sea. Normally the individuals of larger size have higher fecundity. Similarity between the species
Yury P. Diakov
doaj   +1 more source

New record of Hymenophyllum caudatum Bosch (Polypodiopsida, Hymenophyllaceae) extends the mainland distribution in the coastal Mediterranean Forest of South America. [PDF]

open access: yesBiodiversity Data Journal, 2022
During a botanical exploration in the Los Ruiles National Reserve (Chile), a population of Hymenophyllum caudatum Bosch was identified. Fronds were found at the base of a rock, under a hygrophilous vegetation cover, in a ravine (35°49'56.49\"S -72 ...
Jimmy Pincheira-Ulbrich   +2 more
doaj   +3 more sources

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