Results 61 to 70 of about 859 (196)

Contribuição da ciência cidadã para a conservação da avifauna tocantinense [PDF]

, 2020
The loss of biological diversity is one of the most severe environmental problems caused by humanity. Cataloging species is an activity that demands a lot from researchers, demands time, work and material costs.
Moura, Ricardo Silva
core  

Distribución altitudinal de las aves en una zona prioritaria en Sinaloa y Durango, México Altitudinal distribution of birds in a priority area in Sinaloa-Durango, Mexico

Revista Mexicana de Biodiversidad, 2010
En este estudio se documentan los patrones de riqueza de especies y endemismo con respecto a un gradiente altitudinal (300-2 800 m snm) en la región del Espinazo del Diablo (estados de Durango y Sinaloa). Se registró un total de 209 especies de aves, que
Ma Nelle Medina-Macías, Marco Antonio González-Bernal, Adolfo G. Navarro-Sigüenza   +2 more
doaj  

Patterns of species richness and biogeographic regionalization of the avifaunas of the seasonally dry tropical forest in Mesoamerica [PDF]

Studies on Neotropical Fauna and Environment, 2012
Biogeographic patterns of avifaunas associated with seasonally dry tropical forests in Mesoamerica are poorly understood despite their high levels of species richness and endemism. Through the parsimony analysis of endemicity, we analyzed biogeographic relationships of 650 resident species of birds associated with seasonally dry tropical forests from ...
A. Ríos-Muñoz, César, G. Navarro-Sigüenza, Adolfo   +1 more
openaire   +1 more source

Species Distribution Models and Abundance Estimates Enhance Breeding Bird Atlas Data

Ecology and Evolution, Volume 16, Issue 6, June 2026.
Our primary goal was to leverage the large amount of systematic and volunteer‐based data produced by the Minnesota Breeding Bird Atlas to develop species distribution models and population estimates for as many breeding bird species as possible. We utilized three complementary techniques to develop species distribution models and maps for 136 breeding ...
Nicholas G. Walton, Edmund J. Zlonis, Péter Sólymos, Alexis R. Grinde, Gerald J. Niemi   +4 more
wiley   +1 more source

Review of rare bird species in the North Kazakhstan: update and additions to the regional avifauna list

Acta Biologica Sibirica
The study details long-term observations conducted in the North Kazakhstan region from 2016 to 2024, focusing on bird species that were either previously unrecorded or rarely encountered.
Ivan A. Zuban, Alexey Y. Timoshenko, Pavel S. Dmitriyev, Sergey N. Gashev, Mikhail N. Kalashnikov, Bakhytzhan M. Suindykov, Vladislav S. Lunyov, Stanislav V. Shnel   +7 more
doaj   +1 more source

Avifauna of Desert Regional Station, Zoological Survey of India Campus, Jodhpur, Rajasthan

Zoos' Print Journal, 2004
Sharma, I.K. (1988). Some birds around Pushkar Lake. Newsletter for Birdwatchers 28(11&12): 7. Sharma, A.K. and R. Singh (1993). Sighting of Green Barbet and nesting of Pied Myna at Jaipur. Newsletter for Bird Watchers 33(3): 5354. Sharma, S.K. (2001). Impact of Indira Gandhi Canal on the desert avifauna of Rajasthan.
C. Sivaperuman, Sanjeev Kumar, N.S. Rathore   +2 more
openaire   +1 more source

Nesting and Habitat Characteristics of White‐Browed Sparrow‐Weavers (Plocepasser mahali, Smith) at Chemeron, Baringo South, Kenya

Ecology and Evolution, Volume 16, Issue 6, June 2026.
. ABSTRACT Arid and semi‐arid lands (ASALs) support tropical wooded shrublands and grasslands that sustain a diverse array of flora and fauna, including specialized avian communities. However, as the demand for food, fuel, and other natural resources intensifies, these inherently fragile ecosystems face mounting pressure, resulting in significant ...
Enock Nyamorambo Nyamira, George Morara Ogendi, Rhoda Nyasuguta Ondieki   +2 more
wiley   +1 more source

Speciation History Shapes Patterns of Assemblage Species Richness in Birds

Ecology Letters, Volume 29, Issue 6, June 2026.
Speciation is the ultimate source of biodiversity. However, because most species arise in spatial isolation, how speciation shapes patterns of co‐occurring species richness remains unclear. Here we examine how the legacy of speciation affects contemporary biodiversity patterns via a phylogenetic model and show that this build‐up is remarkably slow and ...
Bouwe R. Reijenga, Rampal S. Etienne, David J. Murrell, Alex L. Pigot   +3 more
wiley   +1 more source

Seasonality and Grazing Exclusions Shape Bird Community Dynamics in West African Drylands

Ecology and Evolution, Volume 16, Issue 5, May 2026.
Seasonal changes, more than grazing exclusions, shape bird community composition in the Sahel region of Burkina Faso. However, grazing exclusions enhanced habitat heterogeneity, supporting regional bird biodiversity and providing seasonal refuges that mitigate the effects of overgrazing.
Alexandra Kuttnig, Ambroise N. Zongo, Ian Quintas, Liv Fritsche, Reto Spaar, Bakary Diakité, Franziska Kaguembèga‐Müller, Alain Jacot, Sabine B. Rumpf, Gabriel Marcacci   +9 more
wiley   +1 more source

Long-term avifaunal survey in an urban ecosystem from southeastern Brazil, with comments on range extensions, new and disappearing species

Papéis Avulsos de Zoologia, 2013
Urban avifaunal surveys in Brazil have been increasing in recent years, despite none of them consisting of long-term studies indicating events of regional colonization and/or missing species. Here, we present an avifaunal survey of an urbanized ecosystem
Marcelo Ferreira de Vasconcelos, Eduardo de Carvalho Dutra, Luiz Gabriel Mazzoni, Letícia Ferreira Pedroso, Alyne Perillo, Fernando Augusto Valério, Tadeu Guerra, Diego Petrocchi, Rodrigo Morais, Lucas Penna Soares Santos, Bruno Garzon, Juan Espanha Moreira Dias, José Enemir dos Santos, Allan Suhett de Morais, Letícia Souza Lima Guimarães, Frederico Innecco Alves Garcia, Thiago Oliveira e Almeida, Carlos Eduardo Ribas Tameirão Benfica, Helberth José Cardoso Peixoto, Bruno Pardinho Ribeiro   +19 more
doaj   +1 more source