Results 71 to 80 of about 332 (169)

Ghostbusting—Reducing bias due to identification errors in spatial capture‐recapture histories

Methods in Ecology and Evolution, Volume 15, Issue 6, Page 1060-1070, June 2024.
Abstract Identifying individuals is key to estimating population sizes by spatial capture–recapture, but identification errors are sometimes made. The most common identification error is the failure to recognise a previously detected individual, thus creating a ‘ghost’ Johansson. This results in positively biased abundance estimates.
Abinand Reddy Kodi, Jasmin Howard, David Louis Borchers, Hannah Worthington, Justine Shanti Alexander, Purevjav Lkhagvajav, Gantulga Bayandonoi, Munkhtogtokh Ochirjav, Sergelen Erdenebaatar, Choidogjamts Byambasuren, Nyamzav Battulga, Örjan Johansson, Koustubh Sharma   +12 more
wiley   +1 more source

Habitat differences in seed‐dispersing vertebrates indicate dispersal limitation in tropical bracken‐dominated deforested areas

Biotropica, Volume 56, Issue 3, May 2024.
Forest regeneration in tropical bracken‐dominated deforested areas is mainly hindered by dispersal limitation. We found differences in species composition of seed‐dispersing birds and bats between the forest and bracken‐dominated areas, which could be one of the main causes of dispersal limitation in forest regeneration in tropical bracken‐dominated ...
Silvia C. Gallegos, Cesar Mayta, Mariana Villegas, Guido M. Ayala, Kazuya Naoki, Josef Rechberger, Valeria Rojas, María E. Viscarra, Nuria Bernal‐Hoverud, Mauricio Espejo, Isabell Hensen   +10 more
wiley   +1 more source

Human-wildlife conflicts in Latin America: A systematic review of jaguars (Panthera onca) and Andean bears (Tremarctos ornatus)

Biota Colombiana
Forest cover in Latin America has decreased in recent years due to the expansion of agriculture, forestry, and livestock ranching, exacerbating human-wildlife conflicts (HWC).
María Margarita Arrieta García, Krisztián Katona   +1 more
doaj   +1 more source

Modelación de la distribución del oso andino Tremarctos ornatusen el bosque seco del Marañón (Perú)

Revista Mexicana de Biodiversidad, 2016
El oso andino (Tremarctos ornatus) es una especie en situación vulnerable, cuyo hábitat se va fragmentando poco a poco por la expansión de las actividades humanas.
Judith Figueroa, Marcelo Stucchi, Roxana Rojas-VeraPinto   +2 more
doaj   +1 more source

Un oso en la trastienda: acerca de la fauna inédita en la iconografía de San Agustín

Maguaré, 2010
<p class="MsoNormal" style="margin-bottom: .0001pt; line-height: normal; mso-layout-grid-align: none; text-autospace: none;"> </p><p>El artículo recoge un caso de interpretación sobre la iconografía funeraria en la estatuaria de la ...
Velandia Jagua César Augusto
doaj  

Mamíferos carnívoros (Mammalia, Carnivora) de la vertiente suroriental de la Serranía de los Yariguíes: Importancia de las áreas aledañas a los parques nacionales naturales

Mammalogy Notes
La Serranía de los Yariguíes representa una zona de importancia biológica la cual se encuentra protegida mediante la categoría de Parque Nacional Natural y Distrito Regional de Manejo Integrado.
Leslye Mellissa Aparicio Angarita, Daniel Madrid Guiza, Víctor H. Serrano Cardozo   +2 more
doaj   +1 more source

Human visual identification of individual Andean bears Tremarctos ornatus

Wildlife Biology, 2014
It is often challenging to use invasive methods of individual animal identification for population estimation, demographic analyses, and other ecological and behavioral analyses focused on individual‐level processes. Recent improvements in camera traps make it possible to collect many photographic samples yet most investigators ...
Russell C. Van Horn, Becky Zug, Corrin LaCombe, Ximena Velez‐Liendo, Susanna Paisley   +4 more
openaire   +1 more source

Morfología cráneo−mandibular del oso andino Tremarctos ornatus (Carnivora: Ursidae)

Therya, 2013
We described and illustrated the skull and jaw of the andean bear Tremarctos ornatus , comparatively analyzing among individuals of different ages and sexes, and adults of other species of Ursidae. In ontogenetic level, we found the following morphological changes associated with senescence: obliteration of the sutures, crests development, widening
Marcelo Stucchi, Judith Figueroa
openaire   +1 more source

ESTUDIO PRELIMINAR DE COLECCIÓN DE SEMEN EN OSO DE ANTEOJOS (Tremarctos ornatus)

Revista de Investigaciones Veterinarias del Perú, 2012
Semen was collected in a Spectacled Bear (Tremarctos ornatus) reared in captivity using the electroejaculation technique. Four series of 6 volt discharges by 15 seconds each plus manual stimulation were carried out. An effective penis erection and small volume of ejaculate was obtained in the last series of electrical stimulus. Seminal motility was 50%.
Enciso H, Marco, Bermúdez L., Lizette, Evangelista V, Shirley, Rojas M., Gianmarco, Huanca L., Wilfredo   +4 more
openaire   +4 more sources

Tráfico de partes e individuos del oso andino Tremarctos Ornatus en el Perú

Revista de la Academia Colombiana de Ciencias Exactas, Físicas y Naturales
Entre los años 2002 y 2007 se encontró la venta de partes y productos derivados del oso andino Tremarctos ornatus en 27 mercados de 14 regiones, de los 45 mercados de 24 regiones visitados en el Perú.
Judith Figueroa
doaj   +1 more source