Results 81 to 90 of about 95,543 (254)

Object-oriented echo perception and cortical representation in echolocating bats [PDF]

open access: yes, 2007
Echolocating bats can identify three-dimensional objects exclusively through the analysis of acoustic echoes of their ultrasonic emissions. However, objects of the same structure can differ in size, and the auditory system must achieve a size-invariant ...
Schuchmann Maike   +15 more
core   +1 more source

Interactions between maternal provisioning and natural selection on seed mass fluctuate across heat waves

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Premise Changing climates are leading to more frequent and severe heat waves, potentially threatening plant populations. Both acclimation to stress and selection for heat‐escape or heat‐resistance phenotypes occur during heat waves. However, plastic responses and selection do not necessarily interact cohesively—even producing trait responses ...
Lana F. Gaspard   +4 more
wiley   +1 more source

Dedicatòria d'Annie Bats a Jordi Arbonès

open access: yes, 1991
Dins de: Exercicis d'estil / Raymond Queneau ; traducció i presentació d'Annie Bats i de Ramon Lladó.Per a en Jordi Arbonès, amic millerià i cafetaire, amb l'esperança de tornar-lo a veure en aquests paratges, ja sigui un desembre congelat o un maig ...
Bats, Annie
core   +1 more source

Bat response to differing fire severity in mixed-conifer forest California, USA [PDF]

open access: yes, 2013
Wildlife response to natural disturbances such as fire is of conservation concern to managers, policy makers, and scientists, yet information is scant beyond a few well-studied groups (e.g., birds, small mammals).
Buchalski, M.R.   +19 more
core   +1 more source

Reproductive stages in lowbush blueberry (Vaccinium angustifolium) occur earlier with increasing temperature

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Premise Climate change is altering the timing of many plant phenological events, yet most studies focus on flowering, with less attention given to later reproductive stages such as fruit development and ripening. Vaccinium angustifolium (lowbush blueberry) is an important perennial berry species that may be sensitive to these changes.
Jenna Floyd   +5 more
wiley   +1 more source

Exposure to heat waves and drought improves subsequent leaf heat tolerance for five oak species in southern California

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Premise Given the threats of climate change, we investigated the impact of high temperatures separately and in combination with reduced soil water on leaf heat tolerance for five oaks (Fagaceae) with overlapping ranges in southern California, USA: Quercus agrifolia and Q. chrysolepis (evergreen species), Q. douglasii and Q.
Casey D. Wisely   +7 more
wiley   +1 more source

Indian flying fox Pteropus giganteus colony in Peradeniya Botanical Gardens, Sri Lanka

open access: yesHystrix, the Italian Journal of Mammalogy, 2009
A colony of Indian flying foxes in Peradeniya Botanical Gardens near Kandy, Sri Lanka, was spread over 20 hectares and numbered 24,480 bats in September 2002. The number of bats per tree varied between ten and 1200.
Boris Krystufek
doaj   +1 more source

Evolutionary history and taxonomy of the genus Zea

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Premise Taxonomic differentiation of teosinte species (Zea spp.), the closest relatives of maize (Z. mays) is crucial for understanding their distribution, ecology, and evolutionary history. Resolving the taxonomic uncertainties is of scientific interest and has practical implications for biodiversity management, preservation, and utilization.
José de Jesús Sánchez González   +4 more
wiley   +1 more source

Top-down control of herbivory by birds and bats in the canopy of temperate broad-leaved oaks (Quercus robur) [PDF]

open access: yes, 2011
The intensive foraging of insectivorous birds and bats is well known to reduce the density of arboreal herbivorous arthropods but quantification of collateral leaf damage remains limited for temperate forest canopies.
Wells Konstans   +13 more
core   +2 more sources

The intensity and spatial dispersion of within‐plant herbivory drive trait‐specific resistance and tolerance in wild cotton

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Premise Herbivory induces complex plant defensive responses that may vary depending on the amount and spatial dispersion of damage on the plant; however, of the two variables, damage dispersion has received much less attention. To address this gap, we studied wild cotton (Gossypium hirsutum) defensive responses to different herbivory amounts ...
Víctor Hugo Ramírez‐Delgado   +6 more
wiley   +1 more source

Home - About - Disclaimer - Privacy