Results 71 to 80 of about 142,547 (191)

Abiotic drivers of co‐occurrence and diversity patterns of Calopterygidae species in Amazonian protected freshwaters

open access: yesEcological Entomology, EarlyView.
Species co‐occurrences rely on their ability to explore similar or distinct available resources, and possible niche overlap can prevent their presence and establishment in a given site Damselflies of the Calopterygidae family demonstrated negative co‐occurrences in streams inside and outside PAs, highlighting that their ecological similarity is ...
Joás Silva Brito   +13 more
wiley   +1 more source

The study of ornamental plants: a form of meaningful learning of plant diversity and botanical classifications [PDF]

open access: yes, 2012
El conocimiento de la biodiversidad y las clasificaciones biológicas es uno de los objetivos más difíciles de alcanzar en la enseñanza de las ciencias de la vida. La razón más comúnmente esgrimida es que dicho conocimiento está basado en un desarrollo
Heras, Mª A. de las   +2 more
core  

Prodromus sinsistemático de la República Argentina y una breve introducción a los estudios fitosociológicos [PDF]

open access: yes, 2016
Se presenta el Prodromus de la vegetación de Argentina, que constituye la primera versión del sinsistema nacional detallado hasta nivel de asociación y subasociación.
Aceñolaza, Pablo Gilberto   +9 more
core   +2 more sources

From leaves to defenders: How the amount and dispersion of leaf damage affect extrafloral nectar production and ant‐mediated protection in wild cotton

open access: yesEcological Entomology, EarlyView.
Extrafloral nectar mediates interactions among plants, ants and herbivores; its contingency on damage amount and within‐plant uniformity is poorly understood. Here, we explore these factors in wild cotton (Gossypium hirsutum). Herbivory amount drove increases in extrafloral nectar induction per nectary, whereas within‐plant variability in damage ...
Víctor Hugo Ramírez‐Delgado   +8 more
wiley   +1 more source

Where water meets rock: Ecological niches and diversity hotspots of hygropetric beetles in the Neotropics

open access: yesEcological Entomology, EarlyView.
First continental‐scale synthesis of hygropetric beetle diversity and distribution across Neotropical highlands. Climatic and topographic gradients structure regional assemblages and niche overlap. Ecological convergence suggests adaptation to similar conditions across disjunct regions.
Janderson Batista Rodrigues Alencar   +4 more
wiley   +1 more source

Multifuncionalidad de los pastos herbáceos de montaña: hacia una interpretación multidisciplinar de los sistemas pastorales del Pirineo [PDF]

open access: yes, 2009
27 páginasSe revisan los estudios de los sistemas pastorales del Pirineo de Aragón realizados en el Instituto Pirenaico de Ecología (CSIC) durante los últimos 50 años.
Fillat, Federico   +2 more
core  

Fluctuating asymmetry in spider‐hunting wasps as a possible indicator of stress in Brazilian Atlantic Forest landscapes Assimetria flutuante em vespas caçadoras de aranhas como possível indicador de estresse em paisagens da Mata Atlântica brasileira

open access: yesEcological Entomology, EarlyView.
Agricultural cover was positively associated with fluctuating asymmetry in Trypoxylon opacum, suggesting a possible increase in developmental instability in intensively managed landscapes. Wing size was positively related to forest cover and negatively related to agricultural cover, indicating that forested landscapes may promote larger body size ...
Luana Vieira Carlin dos Santos   +3 more
wiley   +1 more source

Definición y alcance de la reproducción de plantas cultivadas [PDF]

open access: yes, 2015
El objetivo del estudio es establecer, desde una perspectiva científica y técnica, la definición y alcance de los siguientes conceptos “producción”, “reproducción”, “multiplicación” y “propagación” de plantas y material vegetal.
Hernández Díaz-Ambrona, Carlos Gregorio
core  

Approach to climatophilous vegetation series of Serra da Estrela (Portugal) [PDF]

open access: yes, 2012
This work contains the study results of climatophilous vegetation series from Serra da Estrela, the highest mountain on the Portuguese mainland. Located in central-northern Portugal in the Estrelensean Sector (Carpetan-Leonese Subprovince), the Serra da ...
Cano, Eusebio   +2 more
core   +1 more source

When Similar Individuals Don't Attract: Absence of Assortative Mating by Coloration in a Damselfly With Honest Signaling

open access: yesEthology, EarlyView.
In Acanthagrion lancea damselflies, both sexes display blue ornamentation, but do they choose mates based on it? We tested whether mutual mate choice and time constraints influence ornament evolution. Blue coloration correlated with individual quality, but individuals did not choose mates based on color, and this was unaffected by time constraints over
Maria C. A. Melillo   +3 more
wiley   +1 more source

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