Development and viability of a translocated beaver Castor fiber population in The Netherlands

Nolet, Bart A.; Baveco, J.M.

doi:10.1016/0006-3207(95)00063-1

Cited by 61 publications

(30 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…However, population viability analyses used by other authors (Lamberson et al, 1994;Nolet & Baveco, 1996;Marshall & Edwards-Jones, 1998) could be introduced to refine the process further. In this Area considered habitable at present (Fig.…”

Section: Discussionmentioning

confidence: 99%

Ecological niche modelling and prioritizing areas for species reintroductions

Martínez‐Meyer

Peterson

Servín

et al. 2006

Oryx

View full text Add to dashboard Cite

Species reintroduction programmes, in prioritizing areas for reintroductions, have traditionally used tools that include measures of habitat suitability and evaluations of area requirements for viable populations. Here we add two tools to this approach: evaluation of ecological requirements of species and evaluation of future suitability for species facing changing climates. We demonstrate this approach with two species for which reintroduction programmes are in the planning stages in Mexico: California condor Gymnogyps californianus and Mexican wolf Canis lupus baileyi. For the condor, we identify three areas clustered in the Sierra San Pedro Mártir, Baja California; for the wolf, we identify a string of suitable sites along the Sierra Madre Occidental of western Mexico. We discuss the limitations of this approach, identifying ways in which the models illustrated could be made more realistic and directly useful to reintroduction programmes.

show abstract

Section: Discussionmentioning

confidence: 99%

Ecological niche modelling and prioritizing areas for species reintroductions

Martínez‐Meyer

Peterson

Servín

et al. 2006

Oryx

View full text Add to dashboard Cite

show abstract

“…A 30 MHz-radio-transmitter with a life span of 1-2 years, depending on the size of the transmitter (52-92 g), was implanted intraperitoneally in 31 beavers in 1988-1991(Nolet and Rosell 1994. Of these 22 survived their first year after release (which was by far the most critical; Nolet & Baveco 1996). We determined the resting sites of these beavers once a week, yielding 1236 daytime resting site determinations.…”

Section: Biesboschmentioning

confidence: 99%

“…A territory shared by a pair or a group is likely to have an even lower chance of becoming vacant. For example, in beavers, if we assume an annual (sub)adult mortality of 0.09 (Nolet and Baveco 1996) and assume that mortality is independent of territory, a territory with just two owners will lose one beaver approximately once every six years (annual risk of one of a pair dying is 2(0.09)(0.91) = 0.164, or 1:6 chance). The risk of a territory losing both adults within a year is (0.09)(0.09) = 0.0081, 1:123 chance or approximately once every 123 years.…”

Section: The Echo Of Settlementmentioning

confidence: 99%

Territory and group sizes in Eurasian beavers (Castor fiber): echoes of settlement and reproduction?

Campbell

Rosell

Nolet

et al. 2005

Behav Ecol Sociobiol

118

View full text Add to dashboard Cite

According to current theories of territoriality, an animal is expected to defend the smallest area that can provide resources for maximisation of reproduction, known as the 'economically defendable' area. In group territorial species however, the strategies behind resource defence are likely to be more complex with corporate territoriality, cooperative breeding, delayed dispersal and intra-group competition all potentially playing a role. Here we examined group territoriality in a social herbivorous rodent, the Eurasian beaver Castor fiber. Beavers in our study do not inhabit economically defendable territories. Instead the sequence of arrival of pairs into unoccupied areas seems to play a more important role in determining the size of the territory, whereas group size is determined by past reproductive success. We argue that the settlement pattern and reproductive history have a lasting impact in the territorial system of beavers due to a combination of the low adult mortality, high dispersal costs, and avoidance of resource depletion.

show abstract

“…The vegetation largely consists of reed beds and former willow coppices (Saris 1987). Forty-two beavers were reintroduced between 1988 and 1991 (Nolet 1995;Nolet and Baveco 1996). Beavers are territorial and live in family groups (Wilsson 1971;Campbell et al 2005).…”

Section: Study Areamentioning

confidence: 99%

Simulated winter browsing may lead to induced susceptibility of willows to beavers in spring

et al. 2006

View full text Add to dashboard Cite

Browsing may lead to an induced resistance or susceptibility of the plant to the herbivore. We tested the effect of winter browsing by Eurasian beavers (Castor fiber L., 1758) on food quality of holme willows (Salix dasyclados Wimm.) in and after the following growth season. Shrubs were pruned in February, and new shoots from these (cut) shrubs were compared with those of untreated (uncut) ones in May and November. The shoots were analysed for dry matter, nitrogen, acid detergent fibre, and total phenolics. In May, the leaves from the cut treatment had a better food quality (more water, more nitrogen, and less phenolics) than those from the uncut one. There was in part also a systemic response, with lower total phenolics in both the cut and untreated parts of pruned shrubs (uncut-cut) than in the uncut shrubs. In November, we did not find significant differences in biochemistry of bark among cut, uncut, or uncut-cut treatments. These results are in accordance with a cafeteria experiment in the field: in May the beavers preferred shoots from the cut treatment, but in November they showed no preference. The results suggest that willows invest in compensatory growth rather than a defence response early in the regrowing phase.Résumé : Le broutement peut provoquer chez la plante soit une résistance soit une vulnérabilité à l'herbivore. Nous avons vérifié l'effet du broutement en hiver par les castors d'Europe (Castor fiber L., 1758) sur la qualité de la nourriture fournie par le saule à rameaux velus (Salix dasyclados Wimm.) durant la saison suivante de croissance et par la suite. Nous avons émondé les buissons en février et comparé en mai et en novembre les nouvelles pousses de ces buissons « taillés » à celles de buissons « non taillés ». Nous avons soumis les pousses à des analyses de matière sèche, d'azote, de fibres au détergent acide et de substances phénoliques totales. En mai, les feuilles des buissons taillés représentent une nourriture de meilleure qualité (plus d'eau, plus d'azote, moins de substances phénoliques) que celles des buissons non taillés. Il y a aussi une ré-action systématique partielle, puisque les concentrations de substances phénoliques totales, tant dans les parties émondées que non émondées (« non taillés -taillés ») des buissons ébranchés, sont moins importantes que dans les buissons non traités. En novembre, il n'existe pas de différence biochimique significative entre les écorces des buissons taillés, non taillés et non taillés -taillés. Ces données s'accordent avec les résultats d'une expérience de type cafétéria faite en nature: en mai, les castors préfèrent les pousses provenant de buissons taillés, mais en novembre ils ne montrent aucune préfér-ence. Ces observations indiquent que les saules investissent en une croissance compensatoire plutôt qu'en une réaction de défense durant les premières phases de la régénération.[Traduit par la Rédaction]

show abstract

Development and viability of a translocated beaver Castor fiber population in The Netherlands

Cited by 61 publications

References 18 publications

Ecological niche modelling and prioritizing areas for species reintroductions

Ecological niche modelling and prioritizing areas for species reintroductions

Territory and group sizes in Eurasian beavers (Castor fiber): echoes of settlement and reproduction?

Simulated winter browsing may lead to induced susceptibility of willows to beavers in spring

Contact Info

Product

Resources

About