Results 71 to 80 of about 217,685 (167)

Experimental Evidence That Blood Parasite Infection Affects Incubation Patterns in a Cavity‐Nesting Songbird

open access: yesIntegrative Zoology, Volume 21, Issue 1, Page 178-191, January 2026.
Chronic blood parasite infections in wild birds can affect their incubation behavior. In pied flycatchers, females with reduced parasite infections incubated for longer than control females. Despite behavioral changes, no immediate effects on fitness were observed.
Marina García‐del Río   +5 more
wiley   +1 more source

Intoxicação por organoclorados (endosulfan) em bovinos no Uruguai

open access: yesPesquisa Veterinária Brasileira, 2011
Descreve-se um surto de intoxicação por organoclorados (Endosulfan) em bovinos ocorrido em abril de 2009, em uma propriedade de recria de bezerros localizada no departamento de Paisandú, Uruguai.
R. Rivero   +3 more
doaj   +1 more source

Spatial, Temporal, and Host‐Specificity Patterns of Three Genera of Blood Coccidian Parasites in Two Syntopic Mediterranean Lizards

open access: yesIntegrative Zoology, Volume 21, Issue 1, Page 69-78, January 2026.
Our results indicated that the three genera of blood parasites found in the two species of lizards studied can exhibit distinct epidemiological patterns across microgeographic and temporal scales. ABSTRACT We investigated the phenological variation of three genera of blood parasites of lizards (Schellackia, Karyolysus, and Lankesterella) using samples ...
Claudia Mediavilla   +5 more
wiley   +1 more source

A comparison of Criollo and Suffolk ewes for resistance to Haemonchus contortus during the periparturient period

open access: yesJournal of Applied Animal Research, 2018
Criollo and Suffolk ewes were compared for resistance to an experimental infection with Haemonchus contortus in the periparturient period. Measures on days −28, −14, 0 (lambing date), 14, 28, and 42 were taken on number of eggs per gram of faeces (EPG ...
Eliseo Romero-Escobedo   +5 more
doaj   +1 more source

Agronomic, economic and ecological aspects of the papaya (Carica papaya) production in Tabasco, Mexico [PDF]

open access: yes, 2010
The cultivation of papaya is important in the tropic because it provides source of income to the farmer within a short time. Statistical data were obtained from farmers located in the Chontalpa, Rios and Centro-Sierra regions; the size of the survey was ...
Geissen, V.   +5 more
core   +1 more source

From Colonial Natures to Entangled Ecologies: Making Due and Relational Geographies of Indigenous Resurgence in the Chaco

open access: yesAntipode, Volume 58, Issue 1, January 2026.
Abstract This paper offers an alternative reading of decolonial geographies by examining how people make due in the context of colonial natures. Drawing on collaborative ethnographic research, we illustrate how everyday acts of reclaiming ancestral lands serve as practices of resistance that foment Enxet and Sanapaná resurgence in Paraguay's Chaco.
Joel E. Correia, Clemente Dermott
wiley   +1 more source

CAMBIO DE PESO DE TORETES EN PASTOREO EN EL TROPICO: RESPUESTA A SUPLEMENTACION CON BLOQUE MULTINUTRICIONAL

open access: yesEcosistemas y Recursos Agropecuarios, 2014
El objetivo de este estudio fue evaluar la respuesta en cambio de peso vivo de toretes pastoreando estrella africana (Cynodon plectostachyus) y suplementados con bloque multinutricional en condiciones tropicales mexicanas, durante 90 d.
H Mijares-López   +4 more
doaj   +1 more source

Strong Variation in Land‐Use Change Impacts on Tropical Avian Phylogenetic Diversity Between Ecoregions Highlights the Need to Sample Large Spatial Scales

open access: yesGlobal Change Biology, Volume 32, Issue 1, January 2026.
Forest conversion for agriculture is a major cause of biodiversity loss in the tropics, but its impacts depend on how broadly they are measured. Using data from across Colombia, one of the most biodiverse countries in the world, we examined how deforestation for cattle farming affects the evolutionary history of bird species.
Giovanny Pérez   +7 more
wiley   +1 more source

Morphometric Variation and Production Constraints of Criollo Sheep in the High Andes of Southern Peru

open access: yesAgriculture
This study aimed to characterize the morphometric traits and production systems of Criollo sheep in the highlands of Caylloma, Arequipa, Peru. A total of 455 sheep were evaluated using a stratified proportional sampling method across the districts of ...
Richard Estrada   +6 more
doaj   +1 more source

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