Results 141 to 150 of about 225,172 (311)

Propiedades físico-mecánicas de las especies introducidas

open access: yes, 1981
11 ...
Pérez Galaz, Vicente A.
core  

Evaluating synthetic substitutes to reduce illegal harvesting and support species recovery

open access: yesConservation Biology, EarlyView.
Abstract Providing synthetic substitutes is a widely promoted strategy to shift consumer demand away from wildlife products derived from threatened species. Yet, there is little evidence on whether product substitution prevents illegal or unsustainable harvesting and contributes to the recovery of threatened populations.
Aditya Shekhar Malgaonkar   +17 more
wiley   +1 more source

Evaluación de la presencia de especies nativas, endémicas e introducidas en remanentes alrededor de la ciudad de Quito

open access: yes, 2013
Este trabajo intenta evaluar la presencia de especies vegetales que habitan en remanentes ubicados alrededor de la ciudad de Quito. Se colectaron especímenes que presentan formas de vida arbórea, arbustiva, subarbustiva, herbácea y epífita en 10 ...
Delgado Moscoso, María Lorena
core   +1 more source

Providing regular and frequent maps of losses and gains of farmland birds based on European monitoring data

open access: yesConservation Biology, EarlyView.
Abstract Knowledge of species distributions is essential for informing policies on nature conservation and restoration. However, updating them on a regular basis and doing so in a harmonized manner at the international level is difficult. The European Bird Census Council integrated national monitoring data covering 5 years to update farmland bird ...
Sergi Herrando   +54 more
wiley   +1 more source

Anatomía y fisiología comparada del cerdo gallina y conejo [PDF]

open access: yes, 1987
En la cartilla se explica la anatomía, fisiología y el funcionamiento del sistema óseo, muscular, digestivo, pulmonar, nervioso, circulatorio y urogenital en gallinas, cerdos y conejosThe book explains the anatomy, physiology and functioning of the bone,
Neira Aragón, Hugo
core  

Informal supply chains of wild meat from rural Amazonia and food security in an urban center

open access: yesConservation Biology, EarlyView.
Abstract Iquitos, the most populated city in the Peruvian Amazon, is a hub in the regional supply chain of wild meat and supplies urban consumers. Studies on wild meat consumption have focused primarily on markets, limiting the scope of species considered to those that are economically valuable and potential inferences from those data.
Fiorella Briceño Huerta   +3 more
wiley   +1 more source

The genus morpho in colombia: I. species present in colombia, and their geographic and altitudinal distribution El genero Morpho en Colombia: I. especies presentes en Colombia, distribución geográfica y altitudinal

open access: yesAgronomía Colombiana, 1994
This work puts together the results of six studies carried out in Colombia on the genus Morpho, with a revised description of. the species found in Colombia based on color patterns and mal e<br />genitalia.
Rodríguez Claudia   +2 more
doaj  

Estimating the total mortality of seabirds following a marine heat wave

open access: yesConservation Biology, EarlyView.
Abstract Marine heat waves detrimentally affect a range of marine species, including seabirds, and are increasing in frequency and severity. When thousands of dead seabirds wash up on beaches, the public becomes concerned. However, the number of dead birds recorded on beaches is only a fraction of the total mortality; most birds perish at sea.
Jennifer L. Lavers   +3 more
wiley   +1 more source

Wolfniana gen. n. and redescription of Wolfniana limbatula (Osborn, 1926) comb. n. (Hemiptera, Auchenorr hyncha, Cicadellidae)

open access: yes, 2000
Wolfniana gen.n. is proposed to include Cicadella limbatula Osborn, 1926. This species has a head that is more produced than in species of Rotigonalia Young, 1977 and the paraphyses are not V-shaped as in R.
Cavichioli, Rodney Ramiro
core  

Prevalence of traded bird species in key biodiversity areas

open access: yesConservation Biology, EarlyView.
Abstract The use and trade of biodiversity involve tens of thousands of species that are exploited at a range of scales, intensities, and degrees of sustainability. As a result, some are highly threatened. Key biodiversity areas (KBAs) are sites of significance for the persistence of biodiversity identified nationally based on standardized criteria ...
Oscar Morton   +4 more
wiley   +1 more source

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