Results 61 to 70 of about 31,653 (229)

Fase gametofítica de tres taxones de Anemia (Anemiaceae)

open access: yesActa Botanica Mexicana, 2020
Antecedentes y Objetivos: Anemiaceae presenta un único género, Anemia, con 115 especies que se distribuyen en el Neotrópico, África, India e islas en el Océano Índico.
Cristina Janet Chambi   +1 more
doaj   +1 more source

Comparación del muestreo de macroinvertebrados bentónicos fluviales con muestreador surber y con red manual en ríos de Aragón (NE Península Ibérica) [PDF]

open access: yes, 2007
A la hora de valorar el estado ecológico de los ríos y otras aguas superficiales, la Directiva Marco del Agua (Directiva 2000/60/CE) establece que los métodos utilizados deberán garantizar que la información suministrada sea de calidad y comparabilidad ...
Ocharan, Francisco J.   +1 more
core  

Monitoring African Megafauna in an Anthropogenic Landscape: A 15‐Year Case Study of the Vulnerable West African Giraffe

open access: yesAnimal Conservation, EarlyView.
We used pattern recognition software to correct misidentifications in a 15‐year photographic database of the last, vulnerable West African giraffe population in Niger. After revealing substantial methodological errors that had inflated population estimates by nearly 19%, we corrected individual encounter histories and applied capture‐mark‐recapture ...
Mara Vukelić   +8 more
wiley   +1 more source

Paranotella taragui, a curious new genus and new species of Tingini (Heteroptera: Tingidae) from Argentina

open access: yesRevista Chilena de Entomología, 2022
Paranotella taragui, a new genus and species of Tingidae (Hemiptera: Heteroptera) recorded from the province of Corrientes, Argentina, is described.
Diego Leonardo Carpintero   +2 more
doaj   +1 more source

Using miniaturized laboratory equipment and DNA barcoding to improve conservation genetics training and identify illegally traded species

open access: yesConservation Biology, EarlyView.
Abstract Illegal wildlife trade (IWT) is one of the largest global illegal activities, and it negatively affects biodiversity and sustainable development worldwide. DNA barcoding coupled with high‐throughput sequencing (i.e., metabarcoding) is useful in identifying taxa affected by IWT and has been used routinely for decades.
Maria Joana Ferreira da Silva   +9 more
wiley   +1 more source

La asociación de carnívoros miocenos de Grecia

open access: yesEstudios Geologicos, 2011
La asociación de carnívoros miocenos de Grecia incluye un gran número de taxones, descritos en numerosos artículos desde las primeras décadas del siglo XIX.
G. D. Koufos
doaj   +1 more source

Lista actualizada y nuevos registros de las algas rojas (Rhodophyta) del litoral de Michoacán, México

open access: yesRevista Mexicana de Biodiversidad, 2020
Se hizo una investigación bibliográfica de algas rojas registradas para la costa de Michoacán, México. Se añadieron datos obtenidos de muestreos realizados en 12 localidades de 2006 a 2014, con el fin de contribuir al conocimiento de las Rhodophyta de ...
Luz Elena Mateo-Cid   +6 more
doaj   +1 more source

Distribution, scale, and drivers of mass mortality events in Europe's freshwater bivalves

open access: yesConservation Biology, EarlyView.
Abstract Mass mortality events (MMEs) are decimating populations and compromising key ecosystem functions around the globe. One taxon particularly vulnerable to MMEs is freshwater bivalve mollusks. This group has important ecosystem engineering capacities and includes highly threatened and highly invasive taxa.
Daniel A. Cossey   +39 more
wiley   +1 more source

Nuevos registros de Castilleja (Orobanchaceae) en Veracruz, México

open access: yesActa Botanica Mexicana, 2016
Antecedentes y Objetivos: Castilleja nervata y C. tenuiflora var. xylorrhiza estaban reportadas para 11 y cinco estados de México, respectivamente. El objetivo de este estudio fue determinar los caracteres morfológicos de C. nervata para diferenciarla de
Antonio Francisco-Gutiérrez   +2 more
doaj   +1 more source

Evaluating the empirical basis for threat attribution in the IUCN Red List

open access: yesConservation Biology, EarlyView.
Abstract Understanding the impacts of different threats on species is key to successful conservation interventions and policies. The International Union for Conservation of Nature (IUCN) assesses threats to species, and the organization's Red List of Threatened Species is a key conservation tool.
Ena Humphries   +5 more
wiley   +1 more source

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