Results 41 to 50 of about 5,327,913 (209)

Incidence and geographic distribution of retinoblastoma in Ethiopia

open access: yesBMC Ophthalmology, 2023
Introduction Retinoblastoma is the most frequent intraocular malignancy of the eye in children, occurring in early childhood. Based on global estimates, Ethiopia is expected to observe over 200 new retinoblastoma cases per year, however without a cancer ...
Sadik Taju Sherief   +7 more
doaj   +1 more source

Geographic range extension of Rapatea paludosa Aubl. (Rapateaceae) to Maranhão state, northeastern Brazil

open access: yes, 2019
Expansion of the geographic distribution of Rapatea paludosa Aubl. (Rapateaceae) to the state of Maranhão, northeastern Brazil. The occurrence of R. paludosa is reported for the flora of Maranhão from the municipality of Cândido Mendes.
Ferreira,Alessandro   +3 more
core   +1 more source

On the Geographical Distribution of Reptiles [PDF]

open access: yesProceedings of the Zoological Society of London
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire   +3 more sources

Orchids of Russia: annotated checklist and geographic distribution

open access: yesNature Conservation Research: Заповедная наука, 2020
A checklist of orchids is presented for Russia. Data from the project «Biodiversity Mapping of Orchidaceae of Russia» are supplemented by the literature data in order to analyse the geographical distribution of species.
Petr G. Efimov
doaj   +1 more source

TABLES OF GEOGRAPHICAL DISTRIBUTION.

open access: yesTransactions of the Royal Entomological Society of London
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire   +2 more sources

The relationship between niche breadth and geographic range size in African Horseshoe bats (Rhinolophidae, Chiroptera) [PDF]

open access: yes, 2011
According to Brown's hypothesis, generalists have high niche breadth and can tolerate a wide variety of environmental conditions resulting in large geographic range sizes. Conversely, specialists have low niche breadth and small range sizes.
Aronson, Jonathan
core   +1 more source

National Geographic

open access: yes, 1982
ill;281hal ...
National Geographic Society
core  

Toward a kinetic-based probabilistic time geography [PDF]

open access: yes, 2014
Time geography represents a powerful framework for the quantitative analysis of individual movement. Time geography effectively delineates the space–time boundaries of possible individual movement by characterizing movement constraints.
Nathoo, F.S.   +2 more
core   +1 more source

National Geographic

open access: yes, 1968
ill;295hal ...
National Geographic Society
core  

Geographic distribution of feather δ34S in Europe

open access: yesEcosphere
Geographic distribution models of environmentally stable isotopes (the so‐called “isoscapes”) are widely employed in animal ecology, and wildlife forensics and conservation.
Vojtěch Brlík   +8 more
doaj   +1 more source

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