Measuring forest damage of ungulates: what should be considered

Reimoser, Friedrich; Armstrong, H. M.; Suchant, Rudi

doi:10.1016/s0378-1127(98)00542-8

Cited by 89 publications

(77 citation statements)

References 12 publications

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“…This consisted of noting the presence of any tracks or burning within the plot and any evidence of tree cutting and browsing impacts. Browsing impacts were assessed based on a list of indicators provided by Reimoser et al (1999) and Rooney and Waller (2003) and included (i) the presence of browsing on seedlings, saplings and tree twigs, (ii) the presence of a browse line (i.e. horizontal line below which there is no growth on mature trees) and (iii) the presence of browsing animals.…”

Section: Research Was Conducted Inmentioning

confidence: 99%

Status, distribution and use of threatened tree species in the walnut-fruit forests of Kyrgyzstan

Orozumbekov

Cantarello

Newton

2014

Forests, Trees and Livelihoods

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Information is lacking on the status of threatened tree species in Central Asia. This paper aims to provide preliminary information for 10 fruit and nut tree species of Kyrgyzstan. A field survey was conducted throughout the range of walnut-fruit forests in this country, supported by a socio-economic survey. Results indicated that species differed markedly in abundance. Whereas Malus sieversii was found in all locations, four species (Crataegus pontica, Pistacia vera, Pyrus korshinskyi and Sorbus persica) were only found in a minority (#30%) of sites. Four species showed evidence of a bimodal distribution of stem diameters, which could be attributed to fuelwood harvesting, as indicated by the socio-economic survey. A majority of respondents reported a decline in the available grazing resource, a decline in the availability of harvested fruits and an increase in time required to collect fuelwood over the past decade. These results suggest that unsustainable land-use practices may be impacting negatively on populations of threatened fruit tree species. These results highlight the need to regulate local forest use to ensure that threatened fruit and nut tree species are effectively conserved, and the need for targeted actions to conserve the most threatened species, such as P. korshinskyi.

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Section: Research Was Conducted Inmentioning

confidence: 99%

Status, distribution and use of threatened tree species in the walnut-fruit forests of Kyrgyzstan

Orozumbekov

Cantarello

Newton

2014

Forests, Trees and Livelihoods

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“…obs.). According to Reimoser et al (1999) [41] the absence of ground vegetation, the existence of a browse line and of palatable species confined to sites inaccessible to deer observed in these places, all indicate a very heavy browsing pressure.…”

Section: Haida Gwaii and Deermentioning

confidence: 99%

Can we reconstruct deer browsing history and how? Lessons from Gaultheria shallon Pursh

Vila¹,

Guibal²,

Torre³

et al. 2005

Ann. For. Sci.

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-We identified and analysed browsing signatures left by Sitka black-tailed deer (Odocoileus hemionus sitkensis) on Salal (Gaultheria shallon) to reconstruct deer browsing history. Radial growth analyses showed negative abrupt growth changes on islands with deer probably linked to defoliation. Deer browsing pressure was best assessed by the incidence of morphological changes caused by browsing in section form, lobes, pith form, pith position or the presence of decaying wood and by changes in stem age structures. Salal stems were twice older (30 years) on islands with deer than on islands without deer (16 years). On islands with deer deficit of stems in the youngest age classes suggested that deer impact has been strong on these shrubs for at least 20 years in the northern sites and for about 10 years in the southern ones.deer browsing history / negative abrupt growth change / morphological characteristics / age structures / Gaultheria shallon Pursh Résumé -Est-il possible de reconstituer l'histoire de l'abroutissement et comment ? Ce que nous apprend Gaultheria shallon Pursh. Nous avons identifié et analysé les signatures relatives à l'abroutissement du cerf à queue noire (Odocoileus hemionus sitkensis) sur le salal (Gaultheria shallon) et utilisé celles-ci pour reconstituer son histoire. L'analyse de la croissance radiale a révélé des décroissances brutales probablement liées à des défoliations. La pression et l'histoire d'abroutissement sont le mieux appréhendées par l'occurrence des caractères anatomiques tels que la forme de la section, la présence de lobes, la forme et la position de la moelle, la présence de bois altérés ou le déficit en jeunes tiges. L'analyse des âges révèle que les tiges de salal sont deux fois plus âgées en présence de cerfs (30 versus 16 ans). Sur les îles avec cerf, on observe un déficit de jeunes tiges qui suggère un impact fort du cerf depuis 10 ans dans les sites du sud et de 20 ans au moins dans les sites du nord.histoire de l'abroutissement par le cerf / décroissance brutale / caractères morphologiques / structures d'âge / Gaultheria shallon Pursh

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“…In the three sites we selected the absence of ground vegetation, the existence of a browsing limit and the confinement of palatable species to inaccessible areas indicate a very heavy browsing pressure (Reimoser et al, 1999). Site 1 was situated on Reef Island (249 ha).…”

Section: Queen Charlotte Islands and Sampling Sitesmentioning

confidence: 99%