Livestock grazing impacts components of the breeding productivity of a common upland insectivorous passerine: Results from a long‐term experiment

Malm, Lisa; Pearce‐Higgins, James W.; Littlewood, Nick A.; Karley, Alison J.; Karaszewska, Ewa; Jaques, R. P.; Pakeman, Robin J.; Redpath, Stephen M.; Evans, Darren M.

doi:10.1111/1365-2664.13647

Cited by 7 publications

(4 citation statements)

References 31 publications

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“…Although livestock grazing is often considered to be low-level human disturbance [ 7 ], the impacts of livestock grazing on wildlife are usually negative [ 8 , 9 ]. Recently, livestock in protected areas worldwide has increased, especially in forest landscapes, possibly affecting the predator abundance, breeding success, and habitats of wild animals [ 8 , 10 , 11 ]. Therefore, livestock can have a knock-on effect on ground-nesting and insectivorous birds that depend on forest resources [ 11 , 12 , 13 ].…”

Section: Introductionmentioning

confidence: 99%

“…To understand the effect of livestock grazing on wildlife, previous studies have compared the effect of different levels of livestock grazing intensity on the abundance of wildlife and resources at a spatial scale [ 11 , 12 , 14 ]. Camera traps can be useful for investigating the interactions between livestock and wildlife at a temporal scale [ 15 ].…”

Section: Introductionmentioning

confidence: 99%

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Effects of Livestock Grazing on Spatio-Temporal Patterns and Behaviour of Reeves’s Pheasant Syrmaticus reevesii

Hua

Song

et al. 2022

Animals

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Protected areas are seeing an increase in anthropogenic disturbances in the world. Previous studies have demonstrated the impact of livestock grazing and human presence on the habitat use of birds, whereas little is known about the effect of free-ranging livestock on bird behaviour. Reeves’s Pheasant (Syrmaticus reevesii) is endemic to China and has been threatened by habitat loss and fragmentation, illegal logging, and human disturbance over the past 20 years. Based on camera trapping in the Liankangshan National Nature Reserve (LKS) and the Zhonghuashan Birds Provincial Nature Reserve (ZHS), we explore the effects of livestock grazing and human activities on the spatio-temporal distribution and behavioural patterns of Reeves’s Pheasant. Livestock does not appear to affect habitat use by the pheasant but changes its behavioural patterns. In addition, pheasants in areas with livestock foraged mostly during the early morning, while in areas without livestock, they foraged at dusk. Therefore, the study concludes that livestock intensity in nature reserves may have reduced pheasant suitability through altered patterns of vigilance and foraging behaviour.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effects of Livestock Grazing on Spatio-Temporal Patterns and Behaviour of Reeves’s Pheasant Syrmaticus reevesii

Hua

Song

et al. 2022

Animals

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“…Although many studies investigating wildlife responses to livestock grazing have examined birds (e.g. Fletcher et al., 2010; Malm et al., 2020), examples from African ecosystems are uncommon (Ogada et al., 2008)—a general symptom of the paucity of research from the Global South. Crucially, there are few comparisons of multiple livestock stocking rates (Briske et al., 2011).…”

Section: Introductionmentioning

confidence: 99%

Wild and domestic savanna herbivores increase smaller vertebrate diversity, but less than additively

Wells

Kimuyu

Odadi

et al. 2021

Journal of Applied Ecology

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“…Studies investigating this question in mammalian herbivores have been far fewer, but have similarly shown feeding preference for genetics-based plant traits (Bailey et al 2004, Diner et al 2009). However the impacts of mammalian herbivore feeding preferences in the context of assisted migration (where trees from genetically distinct populations are transplanted into an herbivores range) have not been studied, despite the profound effects mammalian herbivores can have on tree health and abundances (Johnston and Naiman 1990, Durban et al 2021), which can influence other taxa and trophic levels (Bailey and Whitham 2002, Schieltz and Rubenstein 2016, Malm et al 2020).…”

Section: Introductionmentioning

confidence: 99%

A mammalian herbivore prefers locally adapted populations in a common garden: implications for climate change mitigation

Lauger

Mahoney

Rothwell

et al. 2021

Preprint

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Climate change is expected to alter habitat more rapidly than the pace of evolution, leading to tree populations that are maladapted to new local conditions. Assisted migration is a mitigation strategy that proposes preemptively identifying and planting genotypes that are robust to the expected climate change-induced alterations of an area. Assisted migration however, may impact the broader community, including herbivores which often coevolved with local plant genotypes and their defenses. Although this question has been examined in arthropod herbivores, few studies have assessed this question in mammalian herbivores, and fewer still have leveraged experimental design to disentangle the genetic contribution to herbivore preference.We examined the hypothesis that North American porcupine (Erethizon dorsatum) browsing on Fremont cottonwood (Populus fremontii) is under genetic control in a common garden, which allowed us to uncouple genetic and environmental contributions to browse preference.Generally, porcupines selected local trees and trees from climatically similar areas, where trees from local and cooler climate populations suffered over 2x more extensive herbivory than trees from warmer areas. Plant genotype was a significant factor for selection, with the most heavily browsed genotype having on average >10x more herbivory than the least heavily browsed. Because genotypes within and among populations were replicated, we calculated broad-sense heritability in which tree palatability by porcupines was H2B = 0.28 (95% CI: 0.13-0.48) among genotypes.Synthesis and applications. Our results indicate a genetic component to tree defenses against porcupine herbivory that can be predicted by the climate of the source population. This result has important implications for mammalian herbivores if climate change renders local tree genotypes maladaptive to new conditions. We recommend assisted migration efforts consider this implication and plant stock from both warmer and climatically similar areas to maintain genetic diversity in a changing environment, productivity and forage for mammalian herbivores.

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Livestock grazing impacts components of the breeding productivity of a common upland insectivorous passerine: Results from a long‐term experiment

Abstract: This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

Cited by 7 publications

References 31 publications

Effects of Livestock Grazing on Spatio-Temporal Patterns and Behaviour of Reeves’s Pheasant Syrmaticus reevesii

Effects of Livestock Grazing on Spatio-Temporal Patterns and Behaviour of Reeves’s Pheasant Syrmaticus reevesii

Wild and domestic savanna herbivores increase smaller vertebrate diversity, but less than additively

A mammalian herbivore prefers locally adapted populations in a common garden: implications for climate change mitigation

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