A survey of short-horned lizard (Phrynosoma hernandesi hernandesi) populations in Alberta /

James, J. Dale; Alberta.,

doi:10.5962/bhl.title.115363

Cited by 3 publications

(1 citation statement)

References 17 publications

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“…1998; Young & Young 2000; Rogovin et al. 2000; Kwiatkowski & Sullivan 2002; Sabo & Power 2002; James 2003; Wiederhecker et al. 2003; Germano & Williams 2005).…”

Section: Discussionmentioning

confidence: 99%

Environmental niche of the smut lizard population on a sandy coastal ecosystem of Southeastern Tenerife (Canary Islands)

Santos

Nicolás

2008

Marine Ecology

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Relationships among environmental patterns and population size of the smut lizard Gallotia galloti galloti Oudart, 1839 (Sauria Lacertidae) were examined in the context of longer time‐scale variability on a sandy beach and adjacent environments of Southeastern Tenerife. Seasonal and yearly patterns in the population size were likewise analyzed in relation to climatic and anthropic variables. Six sampling plots (coastal, sweet tabaiba, tuff, lava, sandy lava and crater) were selected following a perpendicular transect to the sandy fringe that extends from the beach toward the volcanic interior. Pitfall trapping was conducted from 1984 to 2005, and capture–mark–recapture technique and the Jolly–Seber method were used to estimate population sizes. The highest population size estimates were shown on the sandy lava plot and the neighboring lava plot, reaching values of about 3500 individuals ha−1 during the spring. The population was active almost the whole year, with seasonal patterns of activity from March to October. Seasonal temperature and population size patterns were correlated but the ‘calima’ episodes produced some disturbance. Gallotia galloti galloti was one of the most abundant lizards of all the species studied and its population size has not remained stable over the study period, probably because of the absence of predation and competition, and because of human interference and environmental instability.

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“…1998; Young & Young 2000; Rogovin et al. 2000; Kwiatkowski & Sullivan 2002; Sabo & Power 2002; James 2003; Wiederhecker et al. 2003; Germano & Williams 2005).…”

Section: Discussionmentioning

confidence: 99%

Environmental niche of the smut lizard population on a sandy coastal ecosystem of Southeastern Tenerife (Canary Islands)

Santos

Nicolás

2008

Marine Ecology

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Methods for controlling depredation on piping plovers in Alberta : a literature review and synthesis /

Schmelzeisen¹,

Engley²,

Prescott³

2004

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The piping plover (Charadrius melodus) is listed as Endangered under Alberta's Wildlife Act, and in most otherjurisdictions in North America (Alberta Piping Plover Recovery Team 2002). Poor productivity as a result ofpredation of eggs and chicks has been identified as the greatest source ofreproductive failure for piping plovers in Alberta. The Alberta Piping Plover Recovery Plan 2002-2004 identified a need for increased predator management in order to boost reproductive success (Alberta Piping Plover Recovery Team 2002). This report was produced in order to research and compile information on the various tools, techniques and tactics used to control predators thought to be a threat to piping plover reproductive success. This information was compiled through searches of a variety ofbibliographic databases and Internet resources. A wide variety ofpredator control techniques with potential application to piping plover management was identified. The most useful techniques should have tangible benefits for plover productivity and pose no safety or disturbance concerns for humans. As a rule, they should also be inexpensive relative to the benefits ofemploying the technique, require little manpower to implement and should be non-lethal to the predator species. With these criteria in mind, predator deterrence activities to be considered are: 1) using predator exclosures on as many nests as possible; 2) continued removal of stick nests during the nonbreeding season around key plover breeding lakes; 3) using electrified predator fences to protect habitats with high nest densities that can be exclosed with relatively small amounts offence; 4) experimentation with the use of chick shelters in areas with little or no natural cover; 5) filling ofknown canid dens near plover nesting beaches during the non-breeding season; 6) initiation of discussions with affected parties (recovery team, provincial and federal regulatory agencies, local landowners) on the desirability of and approaches to gull control on piping plover lakes with significant gull colonies and; 7) Monitoring progress on research into the use of scent deterrents. It is likely that a combination ofthese techniques, tailored to individual lakes, would be the most effective. The best strategy will be an adaptive approach that takes into consideration many factors. Techniques that are implemented should be monitored to determine their effectiveness and periodically modified through consultation with the Alberta Piping Plover Recovery Team. 1.0 Table 1. Sample keywords used in database searches. Piping plovers Automatic scare devices Crow control Pest control methods Predator removal Frightening devices Common terns Bird deterrence Gull poisoning Piping plover predation Nest predation Monofilament lines Shorebird predation Bird control Bird control devices Duck predation Bird repellents Repellents Mammal control Coyote control Gull control Egg oiling 2.2 Identification of Potential Predators Research conducted within and outside of Alberta on piping plovers and other ...

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Distribution and habitat associations of the long-toed salamander (Ambystoma macrodactylum) in the Oldman River Drainage /

Pearson¹,

Alberta.²

2003

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A survey of short-horned lizard (Phrynosoma hernandesi hernandesi) populations in Alberta /

Cited by 3 publications

References 17 publications

Environmental niche of the smut lizard population on a sandy coastal ecosystem of Southeastern Tenerife (Canary Islands)

Environmental niche of the smut lizard population on a sandy coastal ecosystem of Southeastern Tenerife (Canary Islands)

Methods for controlling depredation on piping plovers in Alberta : a literature review and synthesis /

Distribution and habitat associations of the long-toed salamander (Ambystoma macrodactylum) in the Oldman River Drainage /

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