Results 11 to 20 of about 1,145 (173)
A Dominant Founder Lineage Has Possible Fitness Costs for the Endangered Mexican Grey Wolf. [PDF]
ABSTRACT The Mexican grey wolf (Canis lupus baileyi) is an endangered and genetically distinct subspecies of grey wolf adapted to the warm climates of the southwestern United States and Mexico. Following centuries of eradication efforts, Mexican grey wolves were protected under the Endangered Species Act in 1976, prompting an international ex situ ...
Loera Y +12 more
europepmc +2 more sources
In vitro culture, cryopreservation, and field reintroduction of the endangered Mingan thistle. [PDF]
Abstract Current plant conservation efforts are hindered by, for example, poor seed germination, low viability, and insufficient propagation and preservation technologies. To address these problems, we devised an approach to plant conservation that integrates conservation, preservation, and restoration (CPR), which uses advanced in vitro techniques. We
Shukla MR +4 more
europepmc +2 more sources
Genetic origins and climate-induced erosion in economically important Asian walnuts. [PDF]
Abstract The global climate is undergoing unprecedented changes, posing significant threats to species persistence. However, the spatiotemporal impacts on genetic diversity remain poorly understood, hindering species conservation and management. Walnuts, generally referred to as Juglans regia and J. sigillata, are economically vital in Asia, but little
Fan PZ +17 more
europepmc +2 more sources
Downlisting and recovery of species assessed by the IUCN. [PDF]
Abstract Despite the increasing number of species assessed for extinction risk by the International Union for Conservation of Nature (IUCN) (163,040 species as of 2024), only about 1 in 1,000 have been downlisted due to genuine population improvement. Although this rare conservation achievement has been widely celebrated in several recent cases, some ...
Lin MM +7 more
europepmc +2 more sources
Passiflora con ca. 575 especies es el género más rico de Passifloraceae cuyo centro de diversidad está en Colombia y Ecuador. Éste se divide en cinco subgéneros, entre estos Astrophea agrupa las especies arborescentes y leñosas.
Adriana Carolina Aguirre-Morales +2 more
doaj +1 more source
Práctica con proyección empresarial en el Parque de la Conservación, Medellín, Colombia [PDF]
Spa: La crisis de biodiversidad plantea desafíos globales, destacando la importancia de la medicina veterinaria en la conservación. Los zoológicos evolucionan hacia centros de investigación para la supervivencia de especies amenazadas.
Montejo Castañeda, Mónica Maricel
core +1 more source
Conservación in situ y ex situ de las agaváceas y nolináceas mexicanas
Las Agavaceae y Nolinaceae al igual que otras familias de plantas han sido afectadas por la destrucción y modificación de sus hábitats y la extracción selectiva con fines comerciales de algunas de sus especies, esto ha ocasionado que actualmente 48 ...
Irma Sonia Franco-Martínez
doaj +1 more source
Global drivers of the conservation-invasion paradox. [PDF]
Abstract The conservation–invasion paradox (CIP) refers to a long‐term phenomenon wherein species threatened in their native range can sustain viable populations when introduced to other regions. Understanding the drivers of CIP is helpful for conserving threatened species and managing invasive species, which is unfortunately still lacking. We compiled
Hong Y, Yuan Z, Liu X.
europepmc +2 more sources
Introducción y objetivos: Lupinus aureonitens es una especie endémica de las pampas argentinas, rara con poblaciones aisladas. Su distribución geográfica no es bien conocida, especialmente la ubicación de las localidades tipo, lo que condiciona el ...
Elián Leandro Guerrero
doaj +1 more source
Diversidad de orquídeas en la isla de Hainan en China: distribución y conservación
Las Orchidaceae se distribuyen ampliamente en muchos ecosistemas terrestres con excepción de las zonas polares y desérticas, y constituyen una suerte de «buque insignia» de la conservación biológica. Siendo como es la mayor isla tropical de China, Hainan
X. Y. Hu, J. Zhu, X. Q. Song, R. X. He
doaj +1 more source

