Results 21 to 30 of about 1,465,309 (266)

The species distribution of xanthine oxidase [PDF]

open access: yesBiochemical Journal, 1965
1. The distribution of xanthine oxidase in blood and tissues of various animals was studied by means of a radioactive assay capable of detecting 10(-7) unit of enzyme. The method was shown to be applicable to tissues with a high uricase content. 2. Of 16 mammalian species examined, six had low concentrations of xanthine oxidase in the serum. In six non-
U A, Al-Khalidi, T H, Chaglassian
openaire   +2 more sources

Distribution of Biomphalaria Species in Sudan [PDF]

open access: yesNature, 1967
INTESTINAL bilharzia (caused by the trematode Schistosoma mansoni) is transmitted by snails of the genus Biomphalaria. A survey has recently been conducted to determine the distribution of these snails in the Khartoum and Blue Nile provinces of Sudan.
S N, Williams, P J, Hunter
openaire   +2 more sources

Rangeland Management and Ecological Adaptation Analysis Model for Astragalus curvirostris Boiss

open access: yesHorticulturae, 2021
The present study investigates the ecological requirements of Astragalus curvirostris Boiss, with emphasis on determining the ecological factors that affect the distribution of plant species, and the species’ response to changes in ecological factors ...
Farhad Aghajanlou   +5 more
doaj   +1 more source

Biogeographical ‍distributions of trickster animals

open access: yesRoyal Society Open Science
Human language encompasses almost endless potential for meaning, and folklore can theoretically incorporate themes beyond time and space. However, actual distributions of the themes are not always universal and their constraints remain unclear.
Shota Shibasaki   +2 more
doaj   +1 more source

Multiscale effects of habitat loss and degradation on occurrence and landscape connectivity of a threatened subspecies

open access: yesConservation Science and Practice, 2021
Land use change can result in complex environments of varying habitat quality and permeability that directly and indirectly influence the effectiveness of natural areas for wildlife conservation.
Kira L. Hefty, John L. Koprowski
doaj   +1 more source

Variations of Supercooling Capacity in Intertidal Gastropods

open access: yesAnimals, 2023
Winter low-temperature confines species distribution. Intertidal gastropods are distributed from tropical to polar zones, facing variable intensities and durations of low temperatures.
Jie Wang, Shuo Wang
doaj   +1 more source

Altitudinal Variations in Coniferous Vegetation and Soil Carbon Storage in Kalam Temperate Forest, Pakistan

open access: yesPlants
Understanding the complex interplay among altitudinal gradients, tree species diversity, structural attributes, and soil carbon (C) is critical for effective coniferous forest management and climate change mitigation. This study addresses a knowledge gap
Bilal Muhammad   +9 more
doaj   +1 more source

The saltmarsh vegetation of the lower Uilkraals River

open access: yesBothalia: African Biodiversity & Conservation, 1994
Approximately 40 ha of saltmarsh exist around the Uilkraals River. The distribution patterns of species in these marshes are described and compared with patterns found in other marshes in the Western Cape.
M. O'Callaghan
doaj   +1 more source

From Historical Archives to Algorithms: Reconstructing Biodiversity Patterns in 19th Century Bavaria

open access: yesDiversity
Historical archives hold untapped potential for understanding long-term biodiversity change. This study introduces computational approaches to historical ecology, combining archival research, text analysis, and spatial mapping to reconstruct past ...
Malte Rehbein
doaj   +1 more source

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