Results 11 to 20 of about 512 (153)
Urban-Wild Interface Diversity: A Comprehensive Checklist of Herpetofauna of Guayaquil, Ecuador. [PDF]
Amphibians and reptiles in Guayaquil comprise multiple taxonomic orders and occur across conservation areas, forest remnants, and urban parks, including several endemic species and numerous taxa with type localities in the city. Although most species are globally classified as Least Concern, discrepancies between global and national threat assessments ...
Cruz-García K +3 more
europepmc +2 more sources
Anthropogenic or Natural Dispersal: Case of the Spiny-Tailed Iguanas (<i>Ctenosaura</i>) on Clarion Island, Mexico. [PDF]
Species can colonize oceanic islands by both natural and human‐assisted dispersal and human‐caused species introductions have had catastrophic effects on ecosystems around the world. The Spiny‐tailed Iguanas inhabiting Clarion Island were previously considered introduced. Molecular data and analyses support iguanas' arrival on Clarion Island by natural
Mulcahy DG +5 more
europepmc +2 more sources
Preventing extinction in an age of species migration and planetary change. [PDF]
Abstract International and national conservation policies almost exclusively focus on conserving species in their historic native ranges, thus excluding species that have been introduced by people and some of those that have extended their ranges on their own accord.
Lundgren EJ +5 more
europepmc +2 more sources
Examining the structure of plant-lemur interactions in the face of imperfect knowledge. [PDF]
Abstract Biotic interactions, such as plant–animal seed dispersal mutualisms, are essential for ecosystem function. Such interactions are threatened by the possible extinction of the animal partners. Using a data set that includes plant–lemur interactions across Madagascar, we studied the current state of knowledge of these interactions and their ...
Tonos J +6 more
europepmc +2 more sources
Preliminary insights of the genetic diversity and invasion pathways of Cedrela odorata in the Galapagos Islands, Ecuador. [PDF]
Cedrela odorata is the second most invasive tree species in the Galapagos Islands. Using nine microsatellite markers, we found that the genetic diversity of C. odorata in Galapagos is lower (He = 0.55) than in mainland Ecuador (He = 0.81). Our preliminary findings suggest multiple introduction events and that the origin of C. odorata in Galapagos could
Albuja-Quintana M +6 more
europepmc +2 more sources
La mayoría de las especies de plantas introducidas en México no han sido evaluadas para priorizar las acciones de gestión para erradicarlas o contenerlas o para mitigar los daños causados por invasiones de plantas nocivas. Se evaluaron 42 taxa (41 especies y una variedad) de malezas introducidas de la familia Leguminosae usando criterios empíricos y ...
Judith Sánchez-Blanco +3 more
openaire +2 more sources
Abstract Reduction in population size, with its predicted effects on population fitness, is the most alarming anthropogenic impact on endangered species. By introducing compatible individuals, genetic rescue (GR) is a promising but debated approach for reducing the genetic load unmasked by inbreeding and for restoring the fitness of declining ...
Francesco Maroso +5 more
wiley +1 more source
Presence of the Eucalyptus snout beetle in Ecuador and potential invasion risk in South America
We report the presence of the Eucalyptus snout beetle, Gonipterus platensis, in Ecuador. Ecological niche modeling revealed areas of climatic suitability in South America where this species is present or could invade in the future. Abstract Eucalyptus snout beetles are a complex of at least eight cryptic species (Curculionidae: Gonipterus scutellatus ...
Verónica Crespo‐Pérez +6 more
wiley +1 more source
La importancia y diversidad de los recursos pesqueros del río Usumacinta, México
La cuenca del Usumacinta es uno de los principales sistemas hidrológicos de México, posee una alta diversidad de flora y fauna, y constituye el último río vivo en el país, por consiguiente la generación de info rmación que ayude a su aprovechamiento ...
Manuel Mendoza-Carranza +5 more
doaj +1 more source

