Results 41 to 50 of about 14,787,893 (353)

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

The Relative Influences of Climate and Competition on Tree Growth along Montane Ecotones in the Rocky Mountains

open access: yes, 2016
Distribution shifts of tree species are likely to be highly dependent upon population performance at distribution edges. Understanding the drivers of aspects of performance, such as growth, at distribution edges is thus crucial to accurately predicting ...
Cannon, Ellie, Copenhaver-Parry, Paige E
core   +1 more source

Vertebrate Natural History Notes from Arkansas, 2017 [PDF]

open access: yes, 2017
Because meaningful observations of natural history are not always part of larger studies, important pieces of information often are unreported. Small details, however, can fills gaps in understanding and also lead to interesting questions about ...
Buckley, M.   +10 more
core   +3 more sources

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

Biodiversity Assessment of Syrphid Flies (Diptera: Syrphidae) Within China

open access: yesDiversity
Syrphid flies (Syrphidae) are among the most significant groups of insect pollinators with approximately 6300 described species worldwide. Within China, more than 15% species have been reported but their diversity and distribution pattern are not well ...
Nawaz Haider Bashir   +3 more
doaj   +1 more source

Species distribution models [PDF]

open access: yes, 2011
Species distribution models are a group of methods often used to estimate consequences of global change, to assess ecological status and for other ecological applications.
Hallstan, Simon
core  

Cyrioctea (Araneae, Zodariidae) in Africa: temperate Gondwanaland relict, recent radiation, or both? [PDF]

open access: yes, 2013
Two new species of the zodariid genus Cyrioctea Simon, 1889 are described: C. sawadee sp. nov. and C. lotzi sp. nov., both only known from males. The genus now contains seven Afrotropical species and this abundance is discussed in the context of its ...
Jocqué, Rudy C.A.M.
core   +2 more sources

Time-dependent species sensitivity distributions [PDF]

open access: yesEnvironmental Toxicology and Chemistry, 2012
AbstractTime is a central component of toxicity assessments. However, current ecotoxicological practice marginalizes time in concentration–response (C-R) modeling and species sensitivity distribution (SSD) analyses. For C-R models, time is invariably fixed, and toxicity measures are estimated from a function fitted to the data at that time.
Fox, David, Billoir, Elise
openaire   +2 more sources

Mapping the evolution of mitochondrial complex I through structural variation

open access: yesFEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin   +2 more
wiley   +1 more source

Assessment of Chinese suitable habitats of Amomum tsao-ko in different climatic conditions

open access: yesFrontiers in Plant Science
IntroductionAmomum tsao-ko Crevost et Lemaire is not only a traditional Chinese medicine but also a significant cash crop in the border regions of southwest China. However, challenges pertaining to its growing environment, yield, and overall quality have
Tian-yu Guo   +6 more
doaj   +1 more source

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