Results 41 to 50 of about 11,678 (266)

Analysis of the relationship between L-band SAR backscatter and understory weed density in eucalyptus plantation forests

open access: yesGIScience & Remote Sensing
This study aims to reveal the relationships between understory coverage (principally, weed growth) beneath the canopies of Sumatran eucalyptus plantations and L-band backscatter data gathered by the PALSAR-2 Synthetic Aperture Radar (SAR) onboard the ...
Shoko Kobayashi   +3 more
doaj   +1 more source

Global distribution of avian plumage coloration and patterning: the relative influence of climate, ecology, and sexual selection

open access: yesEcography, EarlyView.
Animal coloration exhibits substantial biogeographic variation, reflecting complex adaptations to both abiotic and biotic environments. Although the evolutionary mechanisms underlying avian plumage coloration have been widely studied, geographic variation in plumage patterning has received far less attention.
Yuqing Han   +8 more
wiley   +1 more source

Ritmo de crecimiento y longevidad de follaje del estrato arbustivo en la Reserva Biológica A. Brenes, Costa Rica

open access: yesRevista de Biología Tropical, 1999
Durante un año y medio se investigó el ritmo de crecimiento y la longevidad de follaje de 22 especies abundantes del estrato arbustivo en el bosque tropical premontano de la Reserva Biológica Alberto Ml. Brenes, Provincia Alajuela, San Ramón, Costa Rica.
Elke Freiberg, Martin Freiberg
doaj  

Architecture of tree species of different strata developing in environments with the same light intensity in a semideciduous forest in southern Brazil

open access: yesActa Botânica Brasílica, 2014
We aimed to answer the following questions related to the architecture of individuals 0.5-3.0 m in height belonging to understory or canopy/emergent layer tree species: "Is there a difference between individuals belonging to different strata developing ...
Natália de Almeida Batista   +3 more
doaj   +1 more source

The art of avoidance: bedsite use, antipredator strategies, and predation risk in white‐tailed deer fawns

open access: yesThe Journal of Wildlife Management, EarlyView.
Horizontal visibility, rather than concealment cover, drove fawn bedsite use and predation risk. Greater field of view decreased the odds of coyote predation, likely by facilitated by early detection. As fawns transitioned from hiders to followers, they shifted from using dense overstory concealment to more open overstory that favored improved escape ...
Tyler R. Obermoller   +2 more
wiley   +1 more source

Identifying Species and Monitoring Understorey from UAS-Derived Data: A Literature Review and Future Directions

open access: yesDrones, 2019
Understorey vegetation plays an important role in many ecosystems, yet identifying and monitoring understorey vegetation through remote sensing has proved a challenge for researchers and land managers because understorey plants tend to be small ...
Lorna Hernandez-Santin   +3 more
doaj   +1 more source

The mangrove understory: some additional observations [PDF]

open access: yesJournal of Tropical Ecology, 1986
published_or_final_version
openaire   +2 more sources

Habitat characteristics along spring migration routes of elk, mule deer, and pronghorn in the southern San Juan Mountains

open access: yesThe Journal of Wildlife Management, EarlyView.
We evaluated habitat characteristics of spring migration routes and stopover sites for adult female elk (Cervus canadensis), mule deer (Odocoileus hemionus), and pronghorn (Antilocapra americana) in the San Juan Mountains (2021–2022) and found species‐specific differences in vegetation structure, terrain, and proximity to land cover types relative to ...
Joanna R. Ennis   +3 more
wiley   +1 more source

Ants that Frequently Colonize Twigs in the Leaf Litter of Different Vegetation Habitats

open access: yesSociobiology, 2018
Ants often colonize twigs in the leaf litter, but some species use this resource more frequently than others. We analyzed the composition of the community and the diameter of colonized twigs to test if any species had a size preference.
Tae Tanaami Fernandes   +3 more
doaj   +1 more source

Northern bobwhites select for native grasses on working grazing land

open access: yesThe Journal of Wildlife Management, EarlyView.
Northern bobwhites in eastern Kentucky selected for native warm‐season grasses at multiple spatial scales in an environment dominated by exotic cool‐season grass cattle forage. Our study suggests that incorporating native warm‐season grass cattle forages into existing operations across the southeastern United States may be a viable working‐lands ...
Douglas B. Mitchell   +6 more
wiley   +1 more source

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