Results 81 to 90 of about 90,712 (307)

Richness and Composition of Mycorrhizal Fungi Varies by Flood Level and River Basin in Oligotrophic Amazonian Seasonally Flooded Forests

open access: yesEcology and Evolution
Mycorrhizal fungi play a key role in supporting plants in nutrient‐poor environments, yet their diversity and distribution in Amazonian floodplain forests remain poorly understood.
Maihyra Marina Pombo   +6 more
doaj   +1 more source

Assessment of the invasive status of newly recorded cactus species in the central Tugela River basin

open access: yesBothalia: African Biodiversity & Conservation, 2015
Background: Current distribution information on cacti in the Tugela River basin in KwaZulu-Natal, South Africa, is scant. Accordingly, surveys in this region substantially improve our understanding of regional invasions by this succulent group.
Michael D. Cheek, Neil R. Crouch
doaj   +1 more source

The tiger salamander as a promising alternative model organism to the axolotl for fracture healing and regenerative biology research

open access: yesThe Anatomical Record, EarlyView.
Abstract Scientists have been captivated by the ability to regenerate, focusing on uncovering the mechanisms of epimorphic regeneration and applying them to human medicine. The axolotl (Ambystoma mexicanum) has become the most intensively studied model in tetrapod regeneration research, particularly concerning limb regeneration.
Vivien Bothe, Nadia Fröbisch
wiley   +1 more source

On the potential policy use of biodiversity indicators: limitations of some currently used indices at the country level based on the Hungarian example and recommendations for improvement [PDF]

open access: yes, 2013
In order to facilitate the use of biodiversity indicators in policy making at the country level, a few and well-established indices should be suggested.
Benedek, Zsófia
core  

Scientific contributions of extensive biodiversity monitoring

open access: yesComptes Rendus. Biologies, 2011
To develop a complete and informative biodiversity observation system, it is necessary to compare the strengths and limits of various monitoring schemes. In this article, we examine the various advantages of extensively monitoring fine-grained spatial variations of biodiversity, where the prominent traits of many species within a community (abundance ...
Denis, Couvet   +3 more
openaire   +2 more sources

Gonadal development in scorpion mud‐turtles, Kinosternon scorpioides, in a controlled environment

open access: yesThe Anatomical Record, EarlyView.
Stage 20 was identified as the critical point for gonadal differentiation in Kinosternon scorpioides, providing key insights into sex determination. These findings enhance conservation strategies by supporting reproductive management and population viability in both in situ and ex situ programs. Abstract Research on gonadal development including sexual
Brenda Braga   +4 more
wiley   +1 more source

Over the edge: Empirical evidence for the cliff‐edge model of obstetric selection

open access: yesThe Anatomical Record, EarlyView.
Abstract The cliff‐edge model of obstetric selection maintains that larger neonates and smaller birth canals confer a positive selective advantage until labor becomes obstructed and vaginal delivery is no longer possible, eliciting an abrupt reduction in fitness.
Laura M. Watson   +6 more
wiley   +1 more source

Hepatic morphology and serum biochemical profile according to dry and rainy seasons in Pygocentrus nattereri (Characiformes: Serrasalmidae)

open access: yesThe Anatomical Record, EarlyView.
Abstract This study investigated the physiological and morphological adaptations of the liver of the carnivorous fish Pygocentrus nattereri (piranha) in response to seasonal variations (dry and rainy seasons) in the Brazilian Pantanal. The objective was to describe how the liver, a central organ in metabolic regulation, responds to environmental ...
Maria Eduarda Corona Garcia   +9 more
wiley   +1 more source

Monitoring biodiversity

open access: yes, 2010
Worldwide biodiversity is decreasing due to climate and land-use changes. Ecosystems at high altitudes such as subalpine and alpine habitats are particularly threatened. Monitoring is a useful tool to observe biodiversity and its development in space and time.
Spiegelberger, T., Koch, E.M.
openaire   +1 more source

Guide on harmonising biodiversity monitoring protocols across scales: Support to effectively integrate monitoring results

open access: yes, 2023
International audienceThe European Biodiversity Partnership, Biodiversa+, in collaboration with EuropaBON and other large-scale initiatives, seeks to harmonise existing biodiversity monitoring protocols and integrate biodiversity information across ...
Silva del Pozo, Michelle   +3 more
core   +1 more source

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