Results 61 to 70 of about 208,051 (314)

Sampling design may obscure species–area relationships in landscape-scale field studies [PDF]

, 2020
We investigated 1) the role of area per se in explaining anuran species richness on reservoir forest islands, after controlling for several confounding factors.
Bueno, Anderson Saldanha, Kaefer, Igor L., Masseli, Gabriel S., Peres, Carlos A.   +3 more
core   +1 more source

Gonadal development in scorpion mud‐turtles, Kinosternon scorpioides, in a controlled environment

The Anatomical Record, EarlyView.
Stage 20 was identified as the critical point for gonadal differentiation in Kinosternon scorpioides, providing key insights into sex determination. These findings enhance conservation strategies by supporting reproductive management and population viability in both in situ and ex situ programs. Abstract Research on gonadal development including sexual
Brenda Braga, Verônica Oliveira‐Bahia, Maria Auxiliadora Ferreira, José Ribamar Felipe Marques, Diva Araújo Guimarães   +4 more
wiley   +1 more source

Efficient plot-based floristic assessment of tropical forests [PDF]

, 2003
The tropical flora remains chronically understudied and the lack of floristic understanding hampers ecological research and its application for large-scale conservation planning.
Chuspe Zans, M., Galiano Sanchez, W., Monteagudo, A.L., Nunez Vargas, P., Pena Cruz, A., Phillips, O.L., Rose, S., Timana, M., Vasquez Marti­nez, R., Yli-Halla, M.   +9 more
core   +1 more source

Insights from meta‐analysis for efficient docosahexaenoic acid production in thraustochytrids through advanced cultivation and fermentation strategies

Biofuels, Bioproducts and Biorefining, EarlyView.
Abstract This systematic review examines strategies for docosahexaenoic acid (DHA) production by thraustochytrids, focusing on cultivation techniques, fermentation technologies, and carbon/nitrogen optimization to increase productivity. Among 169 eligible articles, the 100 most productive studies (0.7–10.3 g DHA L−1 per day) were analyzed. Quantitative
Jhiovana Cristielly Carrera Silva da Costa, Lucas Araújo Guimarães, Andre da Luz de Freitas, Luciana Porto de Souza Vandenberghe, Gilberto Vinícius de Melo Pereira, Carlos Ricardo Soccol, Hervé Louis Ghislain Rogez   +6 more
wiley   +1 more source

Valoración económica por servicios recreativos del río Hacha en el piedemonte amazónico colombiano

Revista U.D.C.A Actualidad & Divulgación Científica, 2023
El río Hacha ubicado en Florencia-Caquetá, Colombia, abastece agua para el consumo humano y proporciona otros servicios ecosistémicos. Las actividades antrópicas han generado una presión en este recurso natural. Se realizó una valoración económica de la
Yelly Yamparli Pardo-Rozo, Leonardo Alonso Saldaña-Fonseca, Marlon Peláez-Rodríguez   +2 more
doaj  

Implementación de un modelo teórico a Priori de competencia matemática asociado al aprendizaje de un objeto matemático

Revista de Investigación, Desarrollo e Innovación, 2017
Este artículo es producto de una investigación cuyo objetivo fue el de apoyar al docente de matemáticas con orientaciones didácticas para promover el desarrollo de las competencias matemáticas de los estudiantes. En el trabajo investigativo se utilizó la
Bernardo García-Quiroga, Arnulfo Coronado, Albeiro Giraldo-Ospina   +2 more
doaj   +1 more source

Development of forest structure and leaf area in secondary forests regenerating on abandoned pastures in Central Amazonia [PDF]

, 2005
The area of secondary forest (SF) regenerating from pastures is increasing in the Amazon basin; however, the return of forest and canopy structure following abandonment is not well understood. This study examined the development of leaf area index (LAI),
Aide, Brown, Davidson, Elisa V. Wandelli, Eltahir, Erick C. M. Fernandes, Ewel, Fearnside, Fearnside, Feldpausch, Fernandes, Finegan, Gehring, Gerwing, Gerwing, Guariguata, Hartemink, Hegarty, Honzák, Hölscher, Jipp, Jordan, Kammesheidt, Kauffman, Kennard, Lucas, McWilliam, Meir, Mesquita, Moran, Nelson, Nepstad, Norman, Putz, Restom, Ribeiro, Saldarriaga, Schnitzer, Serrão, Steininger, Susan J. Riha, Ted R. Feldpausch, Uhl, Uhl, Uhl, Uhl, Veen, Vidal, Vieira, Vieira, Williams, Williamson, Wirth, Wright, Zarin, Zarin   +55 more
core   +1 more source

Patterns of understorey bird diversity across Amazonian forests: survey effort and range maps predict local species richness

Ecography, EarlyView.
Species diversity typically increases from higher to lower latitudes, but the regional‐scale variation along this geographic gradient remains unclear. It has been suggested that species diversity throughout Amazonia generally increases westward toward the Andes, but this pattern and its environmental determinants require further investigation for most ...
Pilar L. Maia‐ Braga, Anderson S. Bueno, Marina F. A. Maximiano, Torbjørn Haugaasen, Marina Anciães, John G. Blake, Bette A. Loiselle, Sergio H. Borges, Juliana Menger, Sidnei Dantas, Ramiro D. Melinski, Affonso H. N. Souza, Fernando H. T. de Abreu, Roberta L. Boss, Carlos A. Peres   +14 more
wiley   +1 more source

Pervasive Rise of Small-scale Deforestation in Amazonia

Scientific Reports, 2018
Understanding forest loss patterns in Amazonia, the Earth’s largest rainforest region, is critical for effective forest conservation and management. Following the most detailed analysis to date, spanning the entire Amazon and extending over a 14-year ...
M. Kalamandeen, E. Gloor, E. Mitchard, D. Quincey, G. Ziv, D. Spracklen, B. Spracklen, M. Adami, L. Aragão, D. Galbraith   +9 more
semanticscholar   +1 more source

Genomic variation in a widespread Neotropical bird (Xenops minutus) reveals divergence, population expansion, and gene flow [PDF]

, 2014
Elucidating the demographic and phylogeographic histories of species provides insight into the processes responsible for generating biological diversity, and genomic datasets are now permitting the estimation of histories and demographic parameters with ...
Brumfield, Robb T., Harvey, Michael G.
core   +3 more sources