Results 61 to 70 of about 58,557 (303)

Bridging data gaps: Evidence‐based population assessment for an endemic amphibian of conservation concern

The Journal of Wildlife Management, EarlyView.
Plethodon welleri exhibits strong seasonal shifts in elevational activity with abundance and occupancy being linked to terrain characteristics. Despite historical habitat assumptions, P. welleri occurs in a broad range of forest types across a larger elevation gradient. Photo Credit to Maxwell Ramey.
Rosemary Ronca, Elyssa Winterton, Jon M. Davenport   +2 more
wiley   +1 more source

Criterios para determinar la edad de pollos de Flamenco Austral (Phoenicopterus chilensis) en cautiverio basadas en características del plumaje [PDF]

, 2018
Many aspects of the breeding biology of the Chilean Flamingo (Phoenicopterus chilensis) are still unknown. We studied captive breeding Chilean Flamingos at La Plata Zoo, Buenos Aires, Argentina between February and July 2014 to document chick‐aging ...
Chiale, Maria Cecilia, Maragliano, María Graciela, Montalti, Diego   +2 more
core  

Global analysis of annual survival among shorebirds reveals a negative effect of migration distance and a decline in recent decades

Oikos, EarlyView.
Annual survival is a key demographic parameter driving population trends in wildlife populations. However, despite numerous species‐specific or regional studies, global reviews of the factors affecting the survival of declining taxa remain scarce. Here, we investigated annual survival of fledged immature and adult shorebirds, a globally‐distributed and
Guillaume Dillenseger, Christopher H. J. Sparkes, Tamás Székely, Brett K. Sandercock, Robert P. Freckleton, Vojtěch Kubelka   +5 more
wiley   +1 more source

Statistics, Probability, and a Failed Conservation Policy

Statistics and Public Policy, 2019
Many sightings of the Ivory-billed Woodpecker (Campephilus principalis) have been reported during the past several decades, but nobody has managed to obtain the clear photo that is regarded as the standard form of evidence for documenting birds.
Michael D. Collins
doaj   +1 more source

Biodiversity science is improved when silent herbaria speak

PLANTS, PEOPLE, PLANET, EarlyView.
Herbaria in the Global South are critical yet underutilized resources for biodiversity science and often absent from international databases and research networks. We highlight the phenomenon of “silent herbaria” using Nigeria as a case study and quantify how these collections fill important gaps in global biodiversity knowledge.
Daniel A. Zhigila, Ryan J. Schmidt‐Knapik, Barbara M. Thiers, Suleiman D. Abdul, Salihu Abdullahi, Abdullahi A. AbdulRahaman, Emmanuel I. Aigbokhan, Gabriel A. Ajibade, Linus B. Ajikah, Ferdinand A. Akomaye, Abiodun E. Ayodele, Joseph J. Azila, Aliyu Babale, Abubakar Bello, Deborah M. Chukwuma, Emmanuel C. Chukwuma, Abubakar M. Dadile, Chimezie Ekeke, Iroka C. Finian, Abayomi E. Folorunso, Akanni T. Gbenga, Mohammed R. Haruna, Jemilat A. Ibrahim, Opeyemi S. Kolawole, Abubakar M. Liman, Ferdinand N. Mbagwu, Sunusi Namadi, Victor S. Njom, George I. Nodza, Felix I. Nwafor, Onyebuchi E. Nwankwo, Caleb D. Obadiah, Bamigboye S. Oloruntoba, Fatima B. J. Sawa, Yohanna C. Tumba, Musa Umar, Elizabeth N. Usen, Maryam M. Wabili, Charles C. Davis   +38 more
wiley   +1 more source

Assessing avian diversity and conservation status in Dhamapur Lake World Heritage Irrigation Structure, Sindhudurg, Maharashtra, India

Journal of Threatened Taxa
We present a preliminary checklist of bird species in the wetland of Dhamapur Lake, a World Heritage irrigation structure in Sindhudurg District, Maharashtra, derived from studies between July 2019 and November 2024.
Yogesh Koli, Pravin Sawant, Mayuri Chavan   +2 more
doaj   +1 more source

Insights from Project FeederWatch: Changes in the abundance and occurrence of birds in New Hampshire over the past 24 years [PDF]

, 2014
Changes in the climate and land use over time can lead to changes in the composition of wildlife communities. Using data from Project FeederWatch, we examine trends in the abundance and occurrence of birds documented in the winters from 1988 to 2012 in ...
Sutcliffe, Lee A
core   +2 more sources

Status, Dispersal, and Breeding Biology of the Exotic Eurasian Collared-Dove (Streptopelia decaocto) in Arkansas [PDF]

, 2012
The exotic Eurasian Collared-Dove (Streptopelia decaocto) was first sighted in Arkansas at Harrison (Boone Co.) on 25 June 1989. Since this initial sighting the species has grown in numbers and is now present in 42 of 75 counties across the state. In the
Cunningham, J., Fielder, J. M., James, D. A., Kannan, R.   +3 more
core   +3 more sources

Big Bird: A global dataset of birds in drone imagery annotated to species level

Remote Sensing in Ecology and Conservation, EarlyView.
Drones are a valuable tool for surveying birds, but manually detecting and identifying birds in drone images is costly. We assembled a diverse dataset of 23 865 images of birds captured with 21 different drones across 11 countries. We labelled 4824 of these images, detailing the location, species, posture category, age category, and sex of 49 990 birds
Joshua P. Wilson, Tatsuya Amano, Thomas Bregnballe, Alejandro Corregidor‐Castro, Roxane Francis, Diego Gallego‐García, Jarrod C. Hodgson, Landon R. Jones, César R. Luque‐Fernández, Dominik Marchowski, John McEvoy, Ann E. McKellar, W. Chris Oosthuizen, Christian Pfeifer, Martin Renner, José Hernán Sarasola, Mateo Sokač, Roberto Valle, Adam Zbyryt, Richard A. Fuller   +19 more
wiley   +1 more source

First documented record of Catharus fuscescens (Stephens, 1817) (Passeriformes, Turdidae) in Rio de Janeiro state, southeastern Brazil [PDF]

Check List
Catharus fuscescens (Stephens, 1817), Veery, is a Nearctic–Tropical migrant that winters mainly in Brazilian Amazonia and Cerrado. In the Atlantic Forest of the southeastern region of Brazil, it is frequently recorded in São Paulo ...
Carlos Nei Ortúzar-Ferreira, Gustavo Azevedo Quintanilha, Leandro Dorna-Santos, Mariana de Souza Oliveira, Bruno Pereira Berto   +4 more
doaj   +3 more sources