Results 61 to 70 of about 47,377 (248)

Alpine flora of Kashmir Himalaya: floristic assessment, life history traits and threat status

open access: yesNordic Journal of Botany, EarlyView.
Alpine ecosystems in the Himalaya are considered to be at a higher risk to anthropogenic global change drivers. The Kashmir Himalaya, located in the north‐western side of the Himalayan biodiversity hotspot, harbors a diverse alpine flora, which remains systematically little investigated.
Bilal A. Rasray   +5 more
wiley   +1 more source

Distribution and Community Assembly of Trees Along an Andean Elevational Gradient

open access: yesPlants, 2019
Highlighting patterns of distribution and assembly of plants involves the use of community phylogenetic analyses and complementary traditional taxonomic metrics.
Samantha J. Worthy   +7 more
doaj   +1 more source

Palynology, vegetation and climate of the Waikato lowlands, North Island, New Zealand, since c. 18,000 years ago [PDF]

open access: yes, 1989
The vegetational and climatic history of the Waikato lowlands during the last c. 18,000 years is inferred from the palynology of sediment cores from Lakes Rotomanuka, Rotokauri, and Okoroire.
Green, John D.   +2 more
core   +2 more sources

Assessing ChatGPT for taxonomic and floristic studies

open access: yesNordic Journal of Botany, EarlyView.
The advancement of biological sciences has long been closely linked to technological progress. ChatGPT, a generative artificial intelligence chatbot capable of producing human‐like conversational responses, has recently attracted attention as a potential support tool for scientific research.
Mykyta Peregrym   +7 more
wiley   +1 more source

British Bryological Society expedition to Mulanje Mountain, Malawi : 15., Lejeuneaceae, and the occurrence and frequency of foliicolous taxa [PDF]

open access: yes, 2001
Details of habitat and location are given for 64 taxa of Lejeuneaceae collected during the BBS expedition to Mulanje Mountain, Malawi in 1991, of which 47 are new to Malawi.
Wigginton, Martin J.
core  

Geochemical support for a climbing habit within the Paleozoic seed fern genus Medullosa [PDF]

open access: yes, 2011
A long-standing problem in paleobotany is the accurate identification of the growth habits and statures of fossil plants. Tissue-specific analysis of stable carbon isotope ratios in plant fossils can provide an independent perspective on this issue ...
Fischer, Woodward W.   +1 more
core   +2 more sources

Mitigating memory requirements for random trees/ferns

open access: yes2015 IEEE International Conference on Image Processing (ICIP), 2015
Randomized sets of binary tests have appeared to be quite effective in solving a variety of image processing and vision problems. The exponential growth of their memory usage with the size of the sets however hampers their implementation on the memory-constrained hardware generally available on low-power embedded systems.
De Vleeschouwer, Christophe   +4 more
openaire   +2 more sources

Response of specific leaf area to light: comparative study of a large species set

open access: yesOikos, EarlyView.
Specific leaf area (SLA) is a commonly used proxy for the leaf economy spectrum in plants, separating species with low‐cost leaves (in terms of carbon) with short lifespan and hence fast turnover from species with high‐cost and long‐lived leaves. While SLA is used mainly for interspecific comparisons, it also varies within species both ontogenetically ...
Tomáš Herben   +2 more
wiley   +1 more source

Genetic and morphological identification of a recurrent Dicksonia tree fern hybrid in New Zealand.

open access: yesPLoS ONE, 2019
Hybridization is common in many ferns and has been a significant factor in fern evolution and speciation. However, hybrids are rare between the approximately 30 species of Dicksonia tree ferns world-wide, and none are well documented.
Lara D Shepherd   +4 more
doaj   +1 more source

Moss and liverwort epiphytes on trunks of Cyathea delgadii in a fragment of tropical rain forest, São Paulo State, Brazil [PDF]

open access: yes, 2006
This study is a survey of the bryophyte species that occur on the trunks of Cyathea delgadii Sternb. (Cyatheaceae), a native tree fern, encountered in a fragment of Atlantic forest located in the area of the „Parque Estadual das Fontes do Ipiranga (PEFI)“
Prado, Jefferson, Vital, Daniel M.
core  

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