Results 81 to 90 of about 245,466 (313)

Body mass and sex estimation from lower carnassial tooth morphometry in the endangered Iberian wolf (Canis lupus signatus): An ecomorphological analysis of sexual size dimorphism

open access: yesThe Anatomical Record, EarlyView.
Abstract The Iberian wolf (Canis lupus signatus) is an endangered subspecies characterized by highly fragmented populations and increasing human–carnivore conflict across the Iberian Peninsula. Although body mass strongly influences predator–prey dynamics and ecological performance, quantitative assessments of sexual size dimorphism (SSD) and body mass
Leonardo Cotts   +4 more
wiley   +1 more source

Second “Endangered Humanities” meetings June 21-22 2021

open access: yes, 2021
Knowledge of precariousness, precariousness of knowledge 21 June 13:00 - 17:30 and 22 June 14:00 - 20:00 Venues: Maison de la recherche Sorbonne Université (28 rue Serpente, 75006 Paris), Fondation Charles Léopold Mayer pour le Progrès de l'Homme (38 rue
science-societe
core  

California's Endangered Peoples and Endangered Ecosystems

open access: yesAmerican Indian Culture and Research Journal, 1997
Cet article presente lors d'un colloque en octobre 1995 organise par le groupe de reflexion et de recherche des Indiens de Californie (California Indian Conference), montre le risque ecologique auquel sont confrontees les populations amerindiennes de Californie et la necessite de reformer les politiques et les pratiques environnementales.
openaire   +2 more sources

Histological Characterization and Comparative Transcriptomic Analysis of Gonads During Early Sex Differentiation in the Northern Snakehead (Channa argus)

open access: yesAnimal Research and One Health, EarlyView.
This study delineates the early sex differentiation timeline in the northern snakehead (Channa argus). These findings provide a foundation for future sex‐control breeding in this economically important species. ABSTRACT The northern snakehead (Channa argus) is an economically important aquaculture species in China.
Chaonan Sun   +6 more
wiley   +1 more source

Listing a species as threatened or endangered, Section 4 of the Endangered Species Act

open access: yes, 2013
The Endangered Species Act of 1973, as amended, is one of the most far reaching wildlife conservation laws ever enacted by any nation. Congress, on behalf of the American people, passed the ESA to prevent extinctions facing many species of fish, wildlife

core  

Observations of biennial reproduction in Caribbean reef sharks ‘Carcharhinus perezi’

open access: yesFrontiers in Marine Science
Effective management and conservation of threatened species biodiversity requires knowledge of reproductive biology, such as cyclicity, mode, and age at maturity.
Beckah A. Campbell   +4 more
doaj   +1 more source

Assessing the Viability of Reintroduction of Locally Extinct Migratory Fish Brycon orbignyanus: Successful Growth, Dispersal and Maturation

open access: yesFishes, 2018
The reintroduction of threatened fish species in areas where wild populations have been depleted due to anthropogenic impacts is an increasingly popular conservation tool and mitigation policy.
Juan R. Esquivel-Muelbert   +5 more
doaj   +1 more source

Challenges and Opportunities in Multi‐Method Integrated Geophysical Prospection of Buried Building Remains at the Sanctuary of Olympia

open access: yesArchaeological Prospection, EarlyView.
ABSTRACT Ancient Olympia was one of the most important sanctuaries and the venue for the Olympic Games in Greek and Roman times. Its remains are located in the Olympia Terrace (Peloponnese, Greece) at the present‐day confluence of the rivers Alpheios and Kladeos at the base of Mount Kronos.
Sarah Bäumler   +10 more
wiley   +1 more source

Advancements and Challenges in Artificial Insemination Techniques for Wild Ruminant Conservation: A review

open access: yesAustral Journal of Veterinary Sciences
Biodiversity is increasingly threatened by intensive agriculture, environmental pollution, climate change, and habitat loss, and many mammal species, including ruminants, have disappeared or are threatened with extinction.
Pía C. Rebolledo   +5 more
doaj   +1 more source

Scanning Parametric Sediment Echosounder as Tool for Underwater Archaeological Prospection

open access: yesArchaeological Prospection, EarlyView.
ABSTRACT Underwater cultural heritage 3D prospection techniques, especially for remains that are partly buried in the ground, are only very rarely available and often can only be applied with considerable technical effort. To overcome this limitation, we evaluate a methodological adaption of widely used and available single channel parametric sediment ...
Dennis Wilken   +5 more
wiley   +1 more source

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