Results 41 to 50 of about 1,222 (102)

Distribución en Chile y colonización del río Cayumapu (Valdivia) por el macrófito acuático invasor Limnobium laevigatum

open access: yesGayana: Botanica, 2021
Limnobium laevigatum es una hierba acuática invasora que, aumentando su área de distribución en Chile, ha desplazado especies nativas de su lugar en la zonación litoral de los cuerpos límnicos.
Cristina San Martin   +4 more
doaj  

Identificación de Leguminosae-Caesalpinioideae arbustivas-arbóreas y lianas de la selva Paranaense (Misiones, Argentina) utilizando caracteres vegetativos.

open access: yesBoletín de la Sociedad Argentina de Botánica, 2017
En este trabajo se estudia la diversidad de caracteres morfológicos vegetativos de taxones nativos de la familia Leguminosae-Caesalpinioideae (en su sentido tradicional) de la Provincia de Misiones, Argentina, a fin de facilitar la identificación de ...
Marcelo R. Kostlin
doaj   +1 more source

Estimating abundance of aggregated populations with drones while accounting for multiple sources of errors: A case study on the mass nesting of Giant South American River Turtles

open access: yesJournal of Applied Ecology, Volume 62, Issue 8, Page 2036-2047, August 2025.
The developed approach can be applied to several contexts to efficiently survey spatially aggregated populations using drone‐derived orthomosaics, and to understand phenology at these aggregation sites. We provide general recommendations for planning surveys and discuss implementations of our approach using other types of marking methods and model ...
Ismael V. Brack   +5 more
wiley   +1 more source

Temporal and spatial distribution of Araucaria angustifolia (araucariaceae) pollen in Misiones, Argentina.

open access: yesBoletín de la Sociedad Argentina de Botánica, 2014
Temporal and spatial distribution of Araucaria angustifolia (Araucariaceae) pollen in Misiones, Argentina. Araucaria angustifolia (Bertol.) Kuntze is a native species of high commercial value that has indiscriminately been exploited and is currently in ...
Fabiana Latorre   +2 more
doaj   +1 more source

Temporal Dynamics of a Neotropical Plant‐Hummingbird Interaction Network

open access: yesAustral Ecology, Volume 50, Issue 7, July 2025.
Using an unprecedented sampling effort we evaluated network structure and dynamics of plant‐hummingbird interactions over 1 year in the Brazilian hyperdiverse Campos Rupestres. Network structure presented remarkable temporal change, showing that tropical communities can also be strongly influenced by climate.
Steffani N. P. Queiroz   +7 more
wiley   +1 more source

When do citizen scientists record biodiversity? Non‐random temporal patterns of recording effort and associated factors

open access: yesPeople and Nature, Volume 7, Issue 4, Page 860-870, April 2025.
Abstract Citizen science data are increasingly used for ecological research, biodiversity conservation and monitoring. However, these data often present significant analytical challenges due to uneven recording efforts by citizen scientists. Biases caused by intra‐annual differences in levels of recording activity can be particularly severe, hindering ...
Inês T. Rosário   +3 more
wiley   +1 more source

Functional intraspecific variation in the base water potential for seed germination along soil microclimatic gradients

open access: yesFunctional Ecology, Volume 39, Issue 3, Page 897-911, March 2025.
Abstract The ability of plants to successfully regenerate depends on complex physiological and ecological processes, and one of the first vital stages is seed germination, which depends on temperature, light and water availability. Within species variation in seed germination allows differential responses when facing stimuli and is key for adaptation ...
Clara Espinosa del Alba   +3 more
wiley   +1 more source

Diversity of Encyrtidae (Hymenoptera: Chalcidoidea) collected with Malaise traps in the tropical dry forest of San Javier, Sonora, Mexico Diversidad de Encyrtidae (Hymenoptera: Chalcidoidea) recolectada con trampas Malaise en el bosque tropical caducifolio de San Javier, Sonora, México

open access: yesRevista Mexicana de Biodiversidad, 2010
Results of a faunistic study of the Encyrtidae family (parasitoid wasps) of the tropical dry forest of San Javier, Sonora, Mexico are presented. The study was carried out from November 2003 to October 2004.
José Manuel Rodríguez   +5 more
doaj  

Remote sensing reveals scale‐specific effects of forage crop mowing and landscape structure on a declining farmland bird

open access: yesJournal of Applied Ecology, Volume 62, Issue 3, Page 502-515, March 2025.
We provide a new perspective on the overarching influence of spatial scale in driving the abundance of a declining farmland bird species, supporting the urgency of designing landscape scale‐effective AESs. This should be framed within the new EU Common Agricultural Policy reform and operated by farmer collectives, whereby management interventions ...
Davide Andreatta   +8 more
wiley   +1 more source

Caracterización fenotípica de genotipos de dos poblaciones naturales de Sorghastrum pellitum (Poaceae) del sudeste bonaerense

open access: yesBoletín de la Sociedad Argentina de Botánica, 2021
Introducción y objetivos: Sorghastrum pellitum es una Gramínea nativa de Sudamérica de gran potencial ornamental. Debido a la demanda de nuevas especies nativas por el mercado floricultor, resulta importante conocer si las plantas de esta especie ...
María Lis Echeverría   +3 more
doaj  

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