Results 61 to 70 of about 1,242,145 (170)

Wood Thrush (Hylocichla mustelina) occupancy patterns reveal sensitivity to low precipitation on nonbreeding grounds in northern Costa Rica

open access: yesIbis, EarlyView.
Climatic change and anthropogenic disturbances are reshaping animal populations. Habitat loss and extreme climatic events are particularly strong drivers of declines in species that depend on forested areas. For migratory songbirds, climate and the persistence of suitable habitat over time are fundamental to sustaining populations annually.
Isabel Vargas‐Valverde   +3 more
wiley   +1 more source

Posibles efectos del cambio climático en la distribución potencial de especies arbóreas de bosque templado en Nuevo León, México, México

open access: yesEcosistemas y Recursos Agropecuarios
El clima mundial está cambiando significadamente en los últimos años y con ello la distribución de las especies. Nuestro estudio fue estimar el impacto del cambio climático en la distribución potencial de 10 especies arbóreas de bosque templado de ...
Gyorgy Eduardo Manzanilla-Quijada   +1 more
doaj   +1 more source

Florestas estacionais e áreas de ecótono no estado do Tocantins, Brasil: parâmetros estruturais, classificação das fitofisionomias florestais e subsídios para conservação

open access: yes, 2013
O objetivo deste estudo foi descrever a riqueza, estrutura e diversidade de especies arboreas em areas de Floresta Estacional e ecotono (Floresta Estacional/Floresta Ombrofila) no estado do Tocantins, buscando subsidios para a conservacao, manejo ...
Ricardo Flores Haidar   +6 more
semanticscholar   +1 more source

Molecular phylogenetic analysis sheds light on the diversity and evolutionary history of the Neotropical and African Triplophyllum (Tectariaceae)

open access: yesJournal of Systematics and Evolution, EarlyView.
We used a molecular approach to resolve the evolutionary lineages of Neotropical Triplophyllum, uncovering that current species circumscriptions are hindered by high morphological homoplasy in indument characters. Our results support the recognition of three new species and provide a necessary neotypification for T.
Mauricio Gonçalves Nunes   +6 more
wiley   +1 more source

ESTIMACIÓN DE LA BIOMASA EN UN BOSQUE BAJO MANEJO DE Pinus patula Schltdl. et Cham. EN ZACUALTIPÁN, HIDALGO

open access: yesRevista Mexicana de Ciencias Forestales, 2019
Con el objetivo de estimar la cantidad de biomasa en la vegetación arbórea de bosques manejados de Pinus patula se realizó el presente estudio en el Ejido La Mojonera, en Zacualtipán, Hidalgo, México.
C. Figueroa-Navarro   +3 more
semanticscholar   +1 more source

Tick‐borne diseases in subtropical dairy farming: The role of calf rearing strategies in antibody and antigen prevalence Enfermedades Transmitidas por Garrapatas en la Ganadería Lechera subtropical: El Papel de las Estrategias de Crianza de Terneros en la Prevalencia de Anticuerpos y Antígenos

open access: yesMedical and Veterinary Entomology, EarlyView.
Tropical farmers try to adapt calf‐rearing systems to temperate dairy industry standards. Calves in tick‐infested areas develop stronger immunity to TBD under controlled exposure to ticks. Early tick exposure promotes sustainable management, balancing tick infestation and developing TBD immunity.
Daniela Balseca   +11 more
wiley   +1 more source

Geographic distribution and habitat use of Lepidoblepharis miyatai (Squamata: Sphaerodactylidae), with comments on the taxonomic status of the genus in northern Colombia

open access: yesPhyllomedusa: Journal of Herpetology, 2018
Geographic distribution and habitat use of Lepidoblepharis miyatai (Squamata: Sphaerodactylidae), with comments on the taxonomic status of the genus in northern Colombia.
Andrés Camilo Montes-Correa   +6 more
doaj  

First record of Tetrabdella neotropica Hernandes & Feres (Trombidiformes: Bdellidae) from México

open access: yesPersian Journal of Acarology
The species T. neotropica is found at the furthest point of the Neotropical region in the Gulf of Mexico province (Morrone et al. 2017). However, the genus Tetrabdella, has also been reported in the north of the country in oligotrophic soils of the ...
Sergio Ignacio Gallardo-Yobal   +2 more
doaj   +1 more source

Gestão e manejo de áreas naturais protegidas: contexto internacional

open access: yes, 2015
The international system for the classification of protected natural areas developed by the International Union for Conservation of Nature (IUCN) is intended to provide a common language for the management of these areas. The main objective of this study
P. Pellizzaro   +4 more
semanticscholar   +1 more source

Ecology of declining populations of gray foxes (Urocyon cinereoargenteus) in Indiana, USA Ecología de las poblaciones en declive de zorros grises (Urocyon cinereoargenteus) en Indiana, EE.UU.

open access: yesWildlife Monographs, Volume 226, Issue 1, September 2026.
We estimated seasonal space use, cover selection, and resource selection; evaluated gene flow and potential genetic barriers; and assessed cause‐specific survival rates and reproduction of radiomarked gray foxes in Indiana, USA. Our results provide evidence that gray foxes in Indiana are an edge species with relatively large home ranges, relatively low
Tim L. Hiller   +5 more
wiley   +1 more source

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