Observations of White-Tailed Deer and Cattle Diets in Mexico

Martínez, Adrián; Molina, Victor Hugo Soto; Gonzales, Frédéric; Marroquín, J.; Návar, José

doi:10.2307/4003725

Cited by 15 publications

(1 citation statement)

References 17 publications

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“…Abreviaturas: Vr (vegetación remanente), Rg (Regeneración) Arb (Arbustiva), P (Palatable) T (Tóxica) Sin descripción (N/D). La palatabilidad es de acuerdo a Martínez et al (1997). Las especies presentes en la regeneración de los sitios estudiados en el ACIRENAC presentaron una abundancia absoluta de 27400 N ha -1 , donde destacan con mayor abundancia Celtis laevigata y Havardia pallens, con el 28.47% (7,800 N ha -1 ) y 26.28% (7,200 N ha -1 ) de la abundancia total observada respectivamente, seguida de Zanthoxylum fagara con 12.41% (3,400 N ha -1 ) (Tabla 3).…”

Section: Resultsunclassified

Estructura y diversidad del matorral xerófilo en el noreste de México

Reyna-González¹,

Soto-Borrego²,

Alanís-Rodríguez³

et al. 2021

polibotanica

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Section: Resultsunclassified

Estructura y diversidad del matorral xerófilo en el noreste de México

Reyna-González¹,

Soto-Borrego²,

Alanís-Rodríguez³

et al. 2021

polibotanica

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Sympatric cattle grazing and desert bighorn sheep foraging

Garrison

Cain

Rominger³

2015

J Wildl Manag

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Foraging behavior affects animal fitness and is largely dictated by the resources available to an animal. Understanding factors that affect forage resources is important for conservation and management of wildlife. Cattle sympatry is proposed to limit desert bighorn population performance, but few studies have quantified the effect of cattle foraging on bighorn forage resources or foraging behavior by desert bighorn. We estimated forage biomass for desert bighorn sheep in 2 mountain ranges: the cattle‐grazed Caballo Mountains and the ungrazed San Andres Mountains, New Mexico. We recorded foraging bout efficiency of adult females by recording feeding time/step while foraging, and activity budgets of 3 age‐sex classes (i.e., adult males, adult females, yearlings). We also estimated forage biomass at sites where bighorn were observed foraging. We expected lower forage biomass in the cattle‐grazed Caballo range than in the ungrazed San Andres range and lower biomass at cattle‐accessible versus inaccessible areas within the Caballo range. We predicted bighorn would be less efficient foragers in the Caballo range. Groundcover forage biomass was low in both ranges throughout the study (Jun 2012–Nov 2013). Browse biomass, however, was 4.7 times lower in the Caballo range versus the San Andres range. Bighorn in the Caballo range exhibited greater overall daily travel time, presumably to locate areas of higher forage abundance. By selecting areas with greater forage abundance, adult females in the Caballo range exhibited foraging bout efficiency similar to their San Andres counterparts but lower overall daily browsing time. We did not find a significant reduction in forage biomass at cattle‐accessible areas in the Caballo range. Only the most rugged areas in the Caballo range had abundant forage, potentially a result of intensive historical livestock use in less rugged areas. Forage conditions in the Caballo range apparently force bighorn to increase foraging effort by feeding only in areas where adequate forage remains. © 2015 The Wildlife Society.

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White-Tailed Deer

Fulbright

2023

Rangeland Wildlife Ecology and Conservation

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White-tailed deer are geographically widespread and occupy a variety of ecosystems from semi-desert shrubland and grasslands to forests. They have a relatively high reproductive potential but recruitment may be limited in semiarid rangelands where annual variation in precipitation is high. They eat browse and forbs but mast may seasonally comprise most of the diet. White-tailed deer select areas with a mixture of woody vegetation and areas dominated by herbaceous vegetation. They use woody vegetation for cover and often forage in adjacent herbaceous-dominated areas. They are highly adaptable and can adjust to changes in vegetation resulting from rangeland management practices; however, excessive grazing reduces habitat quality. Brush management minimally affects white-tailed deer and their habitat when adequate resources such as thermal cover, hiding cover, and browse-and-mast-producing vegetation remain on the landscape. Empirical evidence that creating mosaics of herbaceous-dominated foraging patches and woody cover improves demographics or productivity is equivocal; however, managing for increased spatial heterogeneity in vegetation may increase fawn survival. Chronic wasting disease is a major threat to white-tailed deer populations. White-tailed deer use behavioral adaptations to reduce excessive heat loads resulting from climate change in the southern part of their range. Paradoxically, populations are expanding in the northern part of their range in part because of milder winters. Hunting is the primary tool to manage white-tailed deer populations. Combining recreational hunting with livestock production increases revenue for ranchers. Ironically, white-tailed deer are often a nuisance in eastern forests, but they can be an economically important asset on rangelands.

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Observations of White-Tailed Deer and Cattle Diets in Mexico

Cited by 15 publications

References 17 publications

Estructura y diversidad del matorral xerófilo en el noreste de México

Estructura y diversidad del matorral xerófilo en el noreste de México

Sympatric cattle grazing and desert bighorn sheep foraging

White-Tailed Deer

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