Results 11 to 20 of about 264 (121)

Resource suitability drives low use of avian-excavated tree cavities: A multi-state occupancy dynamics approach. [PDF]

J Anim Ecol
Birds that nest in tree cavities are sometimes dependent on a few cavity‐excavating bird species to make nesting sites available. Such interdependency, however, does not always materialize because excavated cavities may be unsuitable for continued use, even when available for several years after excavation.
Zavala DJ, Cockle KL, Gomez MR, Ferreyra CA, Bonaparte EB, Di Sallo FG, Ferraz G.   +6 more
europepmc   +2 more sources

A multiscale seasonal examination of the risk of harm to seabirds from vessels based on co-occurrence in Alaskan waters. [PDF]

Conserv Biol
Abstract Alaska's seascape supports globally significant seabird populations, including vulnerable and threatened species, and hosts economically important commercial fisheries and marine transportation corridors. Seasonal patterns of seabird movements and vessel traffic create a complex landscape of risk, defined as high levels of co‐occurrence ...
Kapsar K, Sullender BK, Kuletz KJ.
europepmc   +2 more sources

Abundance, Diversity and Phenology of Mosquito Larvae in a Highly Anthropized Wetland: Health and Management Implications of Gándaras de Budiño (NW Spain). [PDF]

Ecol Evol
The natural and anthropized wetland of Gándaras de Budiño (Galicia, Spain) hosts a great number of mosquito species. Culex pipiens s.l. and Culex torrentium pose an emerging risk for West Nile virus transmission. The temporary and polluted waters, as well as the summer and spring seasons, favor the larval proliferation of these vectors.
Martínez-Barciela Y, Polina A, Garrido J.   +2 more
europepmc   +2 more sources

Region‐wide retreats from lower elevations of range‐restricted birds across the Northern Andes

Conservation Biology, Volume 37, Issue 5, October 2023., 2023
Abstract Local studies show upslope shifts in the distribution of tropical birds in response to warming temperatures. Unanswered is whether these upward shifts occur regionally across many species. We considered a nearly 2000‐km length of the Northern Andes, where deforestation, temperature, and extreme weather events have increased during the past ...
Wilderson Medina, Ryan M. Huang, Stuart L. Pimm   +2 more
wiley   +1 more source

Flexible drought deciduousness in a neotropical understory herb

American Journal of Botany, Volume 109, Issue 8, Page 1262-1272, August 2022., 2022
Progression of leaf loss and growth between wet seasons. Abstract Premise Adaptive divergence across environmental gradients is a key driver of speciation. Precipitation seasonality gradients are common in the tropics, yet drought adaptation is nearly unexplored in neotropical understory herbs. Here, we examined two recently diverged neotropical spiral
Julia G. Harenčár, Eleinis Ávila‐Lovera, Gregory R. Goldsmith, Grace F. Chen, Kathleen M. Kay   +4 more
wiley   +1 more source

A joint distribution framework to improve presence‐only species distribution models by exploiting opportunistic surveys

Journal of Biogeography, Volume 49, Issue 6, Page 1176-1192, June 2022., 2022
Abstract Aim The availability of data related to species occurrences has favoured the development of species distribution models using only observations of presence. These data are intrinsically biased by the sampling effort. Presence‐only (PO) species distribution models (SDM) typically account for this effect by introducing additional data considered
Juan M. Escamilla Molgora, Luigi Sedda, Peter Diggle, Peter M. Atkinson   +3 more
wiley   +1 more source

Monitoreo y morfometría de la avifauna del campus de la Universidad del Valle (2011-2012), Valle del Cauca, Colombia

Biota Colombiana, 2014
Dado el creciente desarrollo urbanístico y la pérdida de áreas arbóreas que desempeí±an un papel ecológico importante en el mantenimiento de poblaciones de aves regionales y continentales, se hace necesaria la información continuada para conocer su ...
Lorena Cruz-Bernate, Juan David Ardila-Téllez, Adriana del Pilar Caicedo-Argüelles   +2 more
doaj   +10 more sources

Near‐term ecological forecasting for dynamic aeroconservation of migratory birds

Conservation Biology, Volume 35, Issue 6, Page 1777-1786, December 2021., 2021
Abstract Near‐term ecological forecasting has the potential to mitigate negative impacts of human modifications on wildlife by directing efficient action through relevant and timely predictions. We used the U.S. avian migration system to highlight ecological forecasting applications for aeroconservation.
Kyle G. Horton, Benjamin M. Van Doren, Heidi J. Albers, Andrew Farnsworth, Daniel Sheldon   +4 more
wiley   +1 more source

The predictive power of pollination syndromes: Passerine pollination in heterantherous Meriania macrophylla (Benth.) Triana (Melastomataceae)

Ecology and Evolution, Volume 11, Issue 20, Page 13668-13677, October 2021., 2021
We tested the concept of pollination syndromes by investigating the tropical tree species Meriania macrophylla. In a previous study, this species had been predicted as passerine pollinated based on bulbous stamen appendages serving as nutritive food‐body reward for passerines.
José Miguel Valverde‐Espinoza, Eduardo Chacón‐Madrigal, Olman Alvarado‐Rodríguez, Agnes S. Dellinger   +3 more
wiley   +1 more source

A counterfactual approach to measure the impact of wet grassland conservation on U.K. breeding bird populations

Conservation Biology, Volume 35, Issue 5, Page 1575-1585, October 2021., 2021
Abstract Wet grassland populations of wading birds in the United Kingdom have declined severely since 1990. To help mitigate these declines, the Royal Society for the Protection of Birds has restored and managed lowland wet grassland nature reserves to benefit these and other species.
Sean Jellesmark, Malcolm Ausden, Tim M. Blackburn, Richard D. Gregory, Mike Hoffmann, Dario Massimino, Louise McRae, Piero Visconti   +7 more
wiley   +1 more source