Results 41 to 50 of about 5,450,291 (253)

Balancing mechanics and metabolism: Elevational variation in the microanatomy of hummingbird flight muscle

open access: yesThe Anatomical Record, EarlyView.
Abstract Factors varying along elevational gradients impose strong aerodynamic and physiological constraints on powered flight, yet the internal microanatomical variation associated with elevational context in animals under such conditions remains poorly understood.
Juan Camilo Ríos‐Orjuela   +5 more
wiley   +1 more source

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

Establecimiento participativo del Refugio de Vida Silvestre Maquenque

open access: yesCiencias Ambientales, 2006
En 1992 se elaboró la primera propuesta técnica de establecimiento del Parque Nacional Maquenque, en la zona fronteriza de Costa Rica   con   Nicaragua.
Olivier Chassot   +2 more
doaj   +1 more source

Ecoturismo no Parque Nacional de Brasília [PDF]

open access: yes, 2019
Ecotourism can aid sustainable development in National Parks. Through processes were the community can participate in the administration of these areas it’s possible to identify were improvements can be made. National Parks are in the category of the most known conservation units.
openaire   +1 more source

A new old species of Tetracera (Dilleniaceae) from Espinhaço Range, Brazil

open access: yesNordic Journal of Botany, EarlyView.
Tetracera is the only genus within Dilleniaceae with a pantropical distribution. During efforts for a taxonomic revision of the neotropical species, we identified incongruences between application of names and their taxonomic identities, based on protologue and type specimen analysis. Here we describe a new species for the genus bearing a single carpel
Michelly D. F. Araújo   +3 more
wiley   +1 more source

Plan Estratégico del Parque Zoológico Nacional 2018 / 2021 [PDF]

open access: yes, 2018
El Parque Zoológico Nacional procura la conservación de las especies, ya sean nativas o no, y tenemos como responsabilidad, Mantener el equilibrio del ecosistema, mediante conservación, educación y protección de las especies como del medio ambiente, así ...
Parque Zoológico Nacional (ZOODOM)
core  

Treasures of the Serra da Jiboia (Bahia, Brazil): a new species of Racinaea and an overview of the local Bromeliaceae flora

open access: yesNordic Journal of Botany, EarlyView.
Serra da Jiboia, located in the south‐central region of Bahia, represents an important ecotone between the Atlantic Forest and the Caatinga and harbors high floristic diversity and numerous endemic species. The Bromeliaceae family, well represented in the region, stands out for its ecological importance and adaptability to various microenvironments ...
Everton Hilo de Souza   +5 more
wiley   +1 more source

Depredación de Nasuella olivacea (Carnivora: Procyonidae) por Tremarctos ornatus (Carnivora: Ursidae) y Canis lupus familiaris (Carnivora: Canidae), en Parque Chingaza, Colombia

open access: yesMammalogy Notes
El Cusumbo de montaña (Nasuella olivacea) es una especie de gran importancia para los ecosistemas andinos, debido a que dispersa semillas y ayuda a controlar poblaciones de invertebrados y pequeños vertebrados. De igual forma, N.
Fredy Yhamit García Pulido   +3 more
doaj   +1 more source

La avifauna de nuestros Parques Nacionales

open access: yesNuestras Aves, 1985
Este artículo no cuenta con un resumen.
Fernando J. Biole, Julio J. Baliño
doaj   +1 more source

Revisão do gênero Euhybus Coquillett (Diptera, Empididae, Hybotinae) da região Neotropical. Grupo dimidiatus [PDF]

open access: yesActa Amazonica, 2002
As espécies de Euhybus Coquillett do grupo dimidiatus são revisadas, cinco espécies novas da região amazônica são descritas, E. amazonicus (Santiago, Sierra de Cutucu, Ecuador), Ε. dubius (Parque Nacional do Jaú, Amazonas, Brasil), E.
Rosaly ALE-ROCHA
doaj   +1 more source

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