Talk:Habitat fragmentation

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Merging of Article

It has been stated that the article Habitat Fragmentation should be merged with Forest Fragmentation but for all of you redirected here, they should not as forest fragmentation describes the isolation of certain areas of forest or wooded environments where habitat fragmentation describes fragmenting of an animals habitat(where it can live) but not necessarily its ecosystem. For example, noise from a road cutting through the jungle may cause habitat fragmentation of a shy species that is deterred by the noise but the road is not nearly big enough to stop the common flight of insects, birds and less shy mammals and thus the seeds of the plants they carry with them. — Preceding unsigned comment added by Ermie23 (talk • contribs) 02:56, 4 June 2015 (UTC)

Cause of extinction

Fahrig has said that she has been unable to find any fragmentation effect on extinction risk, independent of the habitat loss issue. So I think it's a bit strong to say that habitat fragmentation is a cause of extinction...it still seems likely, but there isn't enough evidence to say this conclusively. Guettarda 06:51, 31 January 2007 (UTC)

It depends on patch size, the species involved, its home range requirements, the remaining population size, and its effects within the system (possible trophic cascades, for example). Habitat fragmentation results in insularization of animal and plant populations, effectively cutting them off from other subpopulations. The remaining habitat supports a reduced gene pool, and depending on fragment size, it may not support viable populations. In addition, habitat fragmentation rarely acts alone – usually it is in conjunction with other threats, such as poaching and further habitat loss; the extinction risk for populations in fragmented habitats as a result of those activities is significantly higher than that of populations inhabiting larger areas. Also, stochastic events, such as disease or natural disasters (including floods, drought and fire), tend to be far more serious threats to reduced and isolated animal and plant populations.

Theory:

http://www.life.illinois.edu/ib/451/lectures/CONISLB.PPT

Examples:

http://cat.inist.fr/?aModele=afficheN&cpsidt=13715689

http://www.jstor.org/pss/4495222

http://si-pddr.si.edu/dspace/handle/10088/8206

Belsavis (talk) 22:59, 28 January 2010 (UTC)

{{fact}} tag on sentence

"Additionally, unoccupied fragments of habitat that are separated from a source of colonists by some barrier are less likely to be repopulated than adjoining fragments. " That sentence seemed a proper synthesis from the previous ones to me, so I removed the {{fact}} tag from it. I'm not a zoologist though, so I might be wrong. Am I correct or not in assuming synthesis? —CrazytalesPublic talk/main/desk 12:13, 18 September 2007 (UTC)

Possible plaigarism of Glossary.com

I just opened this page and another on Glossary.com (http://www.glossary.com/reference.php?q=Islandisation), and noticed that the two read almost the same. In bold are the similarities:

Wikipedia.org:

Habitat fragmentation as the name implies, describes the emergence of discontinuities (fragmentation) in an organism's preferred environment (habitat), causing population fragmentation. Habitat fragmentation can be caused by geological processes that slowly alter the layout of the physical environment[1] (suspected of being one of the major causes of speciation[1]), or by human activity such as land conversion, which can alter the environment much faster and causes extinctions of many species.

Glossary.com:

Habitat fragmentation is a process of environmental change important in evolution and conservation biology. As the name implies, it describes the emergence of discontinuities (fragmentation) in an organism's preferred environment (habitat). Habitat fragmentation can be caused by geological processes that slowly alter the layout of the physical environment or by human activity such as land conversion, which can alter the environment on a much faster time scale. The former is suspected of being one of the major causes of speciation. The latter is causative in extinctions of many species. --44watt (talk) 08:35, 16 June 2011 (UTC)

That's very common, but what is almost certain to have happened is that editors here wrote the material, and then it was copied and used to make another website. That is, they copied us. For example, see this version from 16:44, 23 February 2009 where the lead starts with exactly the words you quote from Glossary.com above. Johnuniq (talk) 10:03, 16 June 2011 (UTC)

The map has no key

The map has this caption....

"Fragmentation and destruction of Great Ape habitat in Central Africa, from the GLOBIO and GRASP projects."

but no key to indicate what is Great Ape habitat. You might think its obvious, I do not, and I sometimes make maps for a living. Provide a better map or a better caption or take out the map entirely.

Avram Primack (talk) 16:58, 17 October 2011 (UTC)

Merge

I propose to merge Forest fragmentation into Habitat fragmentation, since one is just a subset (or an example) of the second. The Forest article is not so long that a split is warranted. -- P 1 9 9  ✉ 14:36, 21 March 2014 (UTC) I agree. — Preceding unsigned comment added by 2601:C:AA00:1746:A839:F7AB:D14D:2000 (talk) 22:32, 14 February 2015 (UTC)