Comparative Phylogeography of Floreana's Lizards Supports Galápagos Pleistocene Paleogeographical Model and Informs Conservation Management Decisions

2021 ◽  
Vol 55 (3) ◽  
Author(s):  
Omar Torres-Carvajal ◽  
Paula A. Castaño ◽  
Francisco Moreno
Keyword(s):  
Conservation Management ◽  
Management Decisions ◽  
Comparative Phylogeography

scholarly journals Metapopulation dynamics of roseate terns: Sources, sinks and implications for conservation management decisions

2018 ◽  
Vol 88 (1) ◽  
pp. 138-153 ◽  
Author(s):  
Adam Seward ◽  
Norman Ratcliffe ◽  
Stephen Newton ◽  
Richard Caldow ◽  
Daniel Piec ◽  
...  
Keyword(s):  
Conservation Management ◽  
Metapopulation Dynamics ◽  
Management Decisions

scholarly journals Assessing the impact of human trampling on vegetation: a systematic review and meta-analysis of experimental evidence

2014 ◽  
Author(s):  
Oliver L. Pescott ◽  
Gavin Stewart
Keyword(s):  
Systematic Review ◽  
Random Effects ◽  
Plant Communities ◽  
Life Form ◽  
Conservation Management ◽  
Meta Analysis ◽  
Vegetation Recovery ◽  
Management Decisions ◽  
Natural Habitats ◽  
The Impact

Vegetation trampling resulting from recreation can adversely impact natural habitats, leading to the loss of vegetation and the degradation of plant communities. A considerable primary literature exists on this topic, therefore it is important to assess whether this accumulated evidence can be used to reach general conclusions concerning vegetation vulnerability to inform conservation management decisions. Experimental trampling studies on a global scale were retrieved using a systematic review methodology and synthesised using random effects meta-analysis. The relationships between vegetation recovery and each of initial vegetation resistance, trampling intensity, time for recovery, Raunkiaer life-form (perennating bud position), and habitat were tested using random effects multiple meta-regressions and subgroup analyses. The systematic search yielded 304 studies; of these, nine reported relevant randomized controlled experiments, providing 188 vegetation recovery effect sizes for analysis. The synthesis indicated there was significant heterogeneity in the impact of trampling on vegetation recovery. This was related to resistance and recovery time, and the interactions of these variables with Raunkiaer life-form, but was not strongly dependent on the intensity of the trampling experienced. The available evidence suggests that vegetation dominated by hemicryptophytes and geophytes recovers from trampling to a greater extent than vegetation dominated by other life-forms. Variation in effect within the chamaephyte, hemicryptophyte and geophyte life-form sub-groups was also explained by the initial resistance of vegetation to trampling, but not by trampling intensity. Intrinsic properties of plant communities appear to be the most important factors determining the response of vegetation to trampling disturbance. Specifically, the dominant Raunkiaer life-form of a plant community accounts for more variation in the resilience of communities to trampling than the intensity of the trampling experienced, suggesting that simple assessments based on this trait could guide decisions concerning sustainable access to natural areas. Methodological and reporting limitations must be overcome before more disparate types of evidence can be synthesised; this would enable more reliable extrapolation to non-study situations, and a more comprehensive understanding of how assessments of intrinsic plant traits can be used to underpin conservation management decisions concerning access.

scholarly journals Conservation, Natural History and Science: the Challenge too Great, the Time too Short

2008 ◽  
Vol 14 (1) ◽  
pp. 5
Author(s):  
Harry F. Recher
Keyword(s):  
Natural History ◽  
Scientific Knowledge ◽  
Conservation Management ◽  
Management Decision ◽  
Management Decisions ◽  
Good Science ◽  
History Of ◽  
Sound Management ◽  
Recurrent Theme

Good conservation is sound management based on good science and a thorough understanding of the natural history of the organisms and systems being managed. Even doing nothing, as some advocate for wilderness, is a management decision and one which should have its foundations in science and natural history. This idea that conservation management should have a strong scientific and natural history basis is a recurrent theme of Duffy and Kraus (2008) in their analysis of conservation management in Hawaii. It is a theme that I cannot disagree with, nor can I disagree with Duffy and Kraus when they argue that natural history knowledge is not appreciated and that there is a failure to include scientific knowledge in management decisions. I don?t have to live and work in Hawaii to reach this view; not much is different in Australia.

RANKING METAPOPULATION EXTINCTION RISK: FROM PATTERNS IN DATA TO CONSERVATION MANAGEMENT DECISIONS

2003 ◽  
Vol 13 (4) ◽  
pp. 990-998 ◽  
Author(s):  
Martin Drechsler ◽  
Karin Frank ◽  
Ilkka Hanski ◽  
Robert B. O'Hara ◽  
Christian Wissel
Keyword(s):  
Conservation Management ◽  
Extinction Risk ◽  
Management Decisions

scholarly journals Assessing the impact of human trampling on vegetation: a systematic review and meta-analysis of experimental evidence

2014 ◽  
Author(s):  
Oliver L. Pescott ◽  
Gavin Stewart
Keyword(s):  
Systematic Review ◽  
Random Effects ◽  
Plant Communities ◽  
Life Form ◽  
Conservation Management ◽  
Meta Analysis ◽  
Vegetation Recovery ◽  
Management Decisions ◽  
Natural Habitats ◽  
The Impact

Vegetation trampling resulting from recreation can adversely impact natural habitats, leading to the loss of vegetation and the degradation of plant communities. A considerable primary literature exists on this topic, therefore it is important to assess whether this accumulated evidence can be used to reach general conclusions concerning vegetation vulnerability to inform conservation management decisions. Experimental trampling studies on a global scale were retrieved using a systematic review methodology and synthesised using random effects meta-analysis. The relationships between vegetation recovery and each of initial vegetation resistance, trampling intensity, time for recovery, Raunkiaer life-form (perennating bud position), and habitat were tested using random effects multiple meta-regressions and subgroup analyses. The systematic search yielded 304 studies; of these, nine reported relevant randomized controlled experiments, providing 188 vegetation recovery effect sizes for analysis. The synthesis indicated there was significant heterogeneity in the impact of trampling on vegetation recovery. This was related to resistance and recovery time, and the interactions of these variables with Raunkiaer life-form, but was not strongly dependent on the intensity of the trampling experienced. The available evidence suggests that vegetation dominated by hemicryptophytes and geophytes recovers from trampling to a greater extent than vegetation dominated by other life-forms. Variation in effect within the chamaephyte, hemicryptophyte and geophyte life-form sub-groups was also explained by the initial resistance of vegetation to trampling, but not by trampling intensity. Intrinsic properties of plant communities appear to be the most important factors determining the response of vegetation to trampling disturbance. Specifically, the dominant Raunkiaer life-form of a plant community accounts for more variation in the resilience of communities to trampling than the intensity of the trampling experienced, suggesting that simple assessments based on this trait could guide decisions concerning sustainable access to natural areas. Methodological and reporting limitations must be overcome before more disparate types of evidence can be synthesised; this would enable more reliable extrapolation to non-study situations, and a more comprehensive understanding of how assessments of intrinsic plant traits can be used to underpin conservation management decisions concerning access.

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