We suspect single-species conservation interventions are sometimes applied in isolated or highly fragmented and edge of range locations, rather than in continuous or core parts of a species range (or both simultaniously). We are especially interested in whether this is the case for widespread but declining species, such as European farmland birds. Is this true? It will often be inevitable for restricted range species, but does it often happen for widespread species? Do you know of any examples in the literature? We are thinking in the context of spatial consrvation prioritization, to help decide where in a species range conservation resourses are best directed to maintain or increase populations.
The African elephants is a good example of widespread, in some cases fragmented/isolated but even declining populations. Elephant conservation interventions efforts are usually more intensified in protected areas than outside for the free-ranging elephants. It has been suggested that future interventions should consider long-term mechanisms of co-existence between humans and elephants - see the following examples:
https://academic.oup.com/jmammal/article/98/3/603/3855617
https://doi.org/10.1111/j.1469-7998.1989.tb02561.x
Earlier work by Lomolino and Channell would suggest that conservation intervention is important in both the core and periphery, but one should not ignore the periphery of a species' historic range because these areas represent critical refugia for many threatened and endangered species, many of which retreat towards the edge rather than the central portions of their former geographical distributions.
Channell, R., and M.V. Lomolino. 2000. Dynamic biogeography and conservation of endangered species. Nature 403:84-86.
Channell, R. and M. V. Lomolino, M.V. 2000. Trajectories to extinction: spatial dynamics of the contraction of geographical ranges. Journal of Biogeography 27: 169–179.
Lomolino, M.V., and R. Channell. 1995. Splendid isolation: patterns of geographic range collapse in endangered mammals. Journal of Mammalogy 76:335-347.
Lomolino, M.V, and R. Channell. 1998. Range collapse, re-introductions, and biogeographic guidelines for conservation. Conservation Biology 12:481-484.
Try to find any research about insect. They are the most abundance species on the planet, so more paper also publish about insect. Try go to my profile and search my few publications. Hope it helps. Good luck!
Article Salient Ecological Sensitive Regions of Central Western Ghats, India
HI Take a look through the myriad examples collected by William J Sutherland at the conservation evidence website: https://www.conservationevidence.com/
Ethiopian Wolves.
Ethiopian Wolf Conservation Project https://www.ethiopianwolf.org/
Contact Claudio Sillero or Jorgelina Marino
Remnant populations on the shrinking areas of Afroalpine habitat.
Good day!
There are some publications about species at the edges of their ranges or with fragmented ranges:
About Najas tenuissima: http://ncr-journal.bear-land.org/article/28
About Silaum silaus at the northern limit of its range: https://threatenedtaxa.org/index.php/JoTT/article/view/3476
About Lunaria rediviva at the eastern limit of its range: https://www.zobodat.at/pdf/Wulfenia_22_0083-0094.pdf
About Desmana moschata which has declined range due to the different factors: http://ncr-journal.bear-land.org/article/63
About Naemorhedus caudatus at the northern limit of its range and which has mosaic range (In Russian): http://ncr-journal.bear-land.org/article/69
Overview of Rangifer tarandus status having declining trend in Arctic islands: http://ncr-journal.bear-land.org/article/144
About the freshwater snail Stagnicola (Corvusiana) corvus at the eastern limit of its range (In Russian): http://ncr-journal.bear-land.org/article/127
About locations of Clemmus troglodytes which extend the range boundaries in north-eastern direction: http://ncr-journal.bear-land.org/article/132
About southernmost locality for Endangered lizard, Darevskia clarkorum: http://ncr-journal.bear-land.org/article/157
About Pelodytes caucasicus whose distribution is limited mainly by Caucasus: http://ncr-journal.bear-land.org/article/158
About Tylototriton yangi with limited distribution: http://ncr-journal.bear-land.org/article/123
About western main population of Anser erythropus (species with globally declined population) on a flyway scale: http://ncr-journal.bear-land.org/article/178
About Marmota sibirica at the northeastern part of its range (In Russian): http://ncr-journal.bear-land.org/article/184
About new locations and their status of Mertensiella caucasica (vulnerable species distributed in a restricted area from the southwest of Georgia to the northeast of Turkey): http://ncr-journal.bear-land.org/article/182
I hope, this information will help you!
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Best wishes,
Anatoliy A, Khapugin
Hi, we published a paper concerning this topic for typical heathland species conservation in southern Europe which may be of interest to you. The paper is: "Restoration treatments to control Molinia arundinacea and woody and alien species encroachment in Calluna vulgaris heathlands at the southern edge of their distribution", you can find it on my page, best regards
Article Restoration treatments to control Molinia arundinacea and wo...
Article Prescribed burning and browsing to control tree encroachment...
https://www.publish.csiro.au/WF/WF07114
Best regards.
DA