Butterfly count (English Wikipedia)

Van Swaay, C.A.M.; Brereton, T.; Kirkland, P.; Warren, M.S. (2012). "Manual for Butterfly Monitoring" (PDF). Wageningen: De Vlinderstichting/Dutch Butterfly Conservation, Butterfly Conservation UK & Butterfly Conservation Europe. Retrieved 7 January 2015.

birdcapemay.org

"Monarch Monitoring Project". Cap May Bird Observatory. 2008. Archived from the original on 2008-12-20. Retrieved 2008-12-05.

doi.org

Royer, Ronald A.; Austin, Jane E.; Newton, Wesley E. (1998). "Checklist and "Pollard Walk" Butterfly Survey Methods on Public Lands". The American Midland Naturalist. 140 (2): 358–371. doi:10.1674/0003-0031(1998)140[0358:CAPWBS]2.0.CO;2. ISSN 0003-0031.
Pollard, E. (1977). "A method for assessing changes in the abundance of butterflies". Biological Conservation. 12 (2): 115–134. Bibcode:1977BCons..12..115P. doi:10.1016/0006-3207(77)90065-9. ISSN 0006-3207.
Létourneau, Isabelle; Larrivée, Maxim; Morin, Antoine (2012). "A comparative analysis of butterfly richness detection capacity of Pollard transects and general microhabitat surveys". The Canadian Entomologist. 144 (5): 727–731. doi:10.4039/tce.2012.64. ISSN 0008-347X. S2CID 84027800.
Isaac, Nick J. B.; Cruickshanks, Katie L.; Weddle, Ann M.; Marcus Rowcliffe, J.; Brereton, Tom M.; Dennis, Roger L. H.; Shuker, David M.; Thomas, Chris D. (2011). "Distance sampling and the challenge of monitoring butterfly populations" (PDF). Methods in Ecology and Evolution. 2 (6): 585–594. Bibcode:2011MEcEv...2..585I. doi:10.1111/j.2041-210X.2011.00109.x. ISSN 2041-210X.
Rüdisser, Johannes; Tasser, Erich; Walde, Janette; Huemer, Peter; Lechner, Kurt; Ortner, Alois; Tappeiner, Ulrike (2017-08-01). "Simplified and still meaningful: assessing butterfly habitat quality in grasslands with data collected by pupils". Journal of Insect Conservation. 21 (4): 677–688. doi:10.1007/s10841-017-0010-3. ISSN 1366-638X.
Barkmann, Friederike; Huemer, Peter; Tappeiner, Ulrike; Tasser, Erich; Rüdisser, Johannes (2023-01-06). "Standardized butterfly surveys: comparing transect counts and area-time counts in insect monitoring". Biodiversity and Conservation. 32 (3): 987–1004. Bibcode:2023BiCon..32..987B. doi:10.1007/s10531-022-02534-2. ISSN 1572-9710.

harvard.edu

ui.adsabs.harvard.edu

Pollard, E. (1977). "A method for assessing changes in the abundance of butterflies". Biological Conservation. 12 (2): 115–134. Bibcode:1977BCons..12..115P. doi:10.1016/0006-3207(77)90065-9. ISSN 0006-3207.
Isaac, Nick J. B.; Cruickshanks, Katie L.; Weddle, Ann M.; Marcus Rowcliffe, J.; Brereton, Tom M.; Dennis, Roger L. H.; Shuker, David M.; Thomas, Chris D. (2011). "Distance sampling and the challenge of monitoring butterfly populations" (PDF). Methods in Ecology and Evolution. 2 (6): 585–594. Bibcode:2011MEcEv...2..585I. doi:10.1111/j.2041-210X.2011.00109.x. ISSN 2041-210X.
Barkmann, Friederike; Huemer, Peter; Tappeiner, Ulrike; Tasser, Erich; Rüdisser, Johannes (2023-01-06). "Standardized butterfly surveys: comparing transect counts and area-time counts in insect monitoring". Biodiversity and Conservation. 32 (3): 987–1004. Bibcode:2023BiCon..32..987B. doi:10.1007/s10531-022-02534-2. ISSN 1572-9710.

monarchnet.org

"Monarch Net Partners". Monarch Net. Retrieved 10 January 2015.

monarchwatch.org

"monarch-population-figure-2014-monarchwatch.png (1000×629)". Retrieved 2014-09-08.

nab-net.org

"Monitor Tracker". The North American Butterfly Monitoring Network. Archived from the original on 2014-12-30. Retrieved 7 January 2015.
"Ontario Butterfly Atlas". The North American Butterfly Monitoring Network. Archived from the original on 13 February 2016. Retrieved 26 March 2016.

naba.org

"NABA Butterfly Counts". Retrieved 2014-09-08.
Suggestions for Improving Observations on NABA Butterfly Counts (PDF), NORTH AMERICAN BUTTERFLY ASSOCIATION, retrieved August 8, 2014

nerc.ac.uk

nora.nerc.ac.uk

Isaac, Nick J. B.; Cruickshanks, Katie L.; Weddle, Ann M.; Marcus Rowcliffe, J.; Brereton, Tom M.; Dennis, Roger L. H.; Shuker, David M.; Thomas, Chris D. (2011). "Distance sampling and the challenge of monitoring butterfly populations" (PDF). Methods in Ecology and Evolution. 2 (6): 585–594. Bibcode:2011MEcEv...2..585I. doi:10.1111/j.2041-210X.2011.00109.x. ISSN 2041-210X.

ontarioinsects.org

Jones, Colin; Layberry, Ross; Macnaughton, Alan. "Main Atlas Page". Ontario Butterfly Atlas Online. Toronto: Toronto Entomologists’ Association. Retrieved 8 January 2015.

semanticscholar.org

api.semanticscholar.org

Létourneau, Isabelle; Larrivée, Maxim; Morin, Antoine (2012). "A comparative analysis of butterfly richness detection capacity of Pollard transects and general microhabitat surveys". The Canadian Entomologist. 144 (5): 727–731. doi:10.4039/tce.2012.64. ISSN 0008-347X. S2CID 84027800.

teamnetwork.org

Puja Batra. "Butterfly Monitoring Protocol" (PDF). Tropical Ecology Assessment and Monitoring (TEAM) Network. p. 3. Retrieved 7 January 2015.

ucdavis.edu

butterfly.ucdavis.edu

"Home Page". Art Shapiro's Butterfly Site. Retrieved 9 January 2015.

uga.edu

monarchparasites.uga.edu

Overall Participation (data from butterfly sampling for parasites), Altizer Lab, Odum School of Ecology, University of Georgia, Athens, GA 30602, 2010, archived from the original on August 10, 2014, retrieved August 9, 2014

ukbms.org

"Methods for recording butterfly transects". UK Butterfly Monitoring Scheme. Retrieved 7 January 2015.
"UK Butterfly Monitoring Scheme". UKMBS.org. Retrieved 10 January 2015.

unl.edu

digitalcommons.unl.edu

Royer, Ronald A.; Austin, Jane E.; Newton, Wesley E. (1998). "Checklist and "Pollard Walk" Butterfly Survey Methods on Public Lands". The American Midland Naturalist. 140 (2): 358–371. doi:10.1674/0003-0031(1998)140[0358:CAPWBS]2.0.CO;2. ISSN 0003-0031.

web.archive.org

Overall Participation (data from butterfly sampling for parasites), Altizer Lab, Odum School of Ecology, University of Georgia, Athens, GA 30602, 2010, archived from the original on August 10, 2014, retrieved August 9, 2014
"Monitor Tracker". The North American Butterfly Monitoring Network. Archived from the original on 2014-12-30. Retrieved 7 January 2015.
"Ontario Butterfly Atlas". The North American Butterfly Monitoring Network. Archived from the original on 13 February 2016. Retrieved 26 March 2016.
"Monarch Monitoring Project". Cap May Bird Observatory. 2008. Archived from the original on 2008-12-20. Retrieved 2008-12-05.

worldcat.org

search.worldcat.org

Royer, Ronald A.; Austin, Jane E.; Newton, Wesley E. (1998). "Checklist and "Pollard Walk" Butterfly Survey Methods on Public Lands". The American Midland Naturalist. 140 (2): 358–371. doi:10.1674/0003-0031(1998)140[0358:CAPWBS]2.0.CO;2. ISSN 0003-0031.
Pollard, E. (1977). "A method for assessing changes in the abundance of butterflies". Biological Conservation. 12 (2): 115–134. Bibcode:1977BCons..12..115P. doi:10.1016/0006-3207(77)90065-9. ISSN 0006-3207.
Létourneau, Isabelle; Larrivée, Maxim; Morin, Antoine (2012). "A comparative analysis of butterfly richness detection capacity of Pollard transects and general microhabitat surveys". The Canadian Entomologist. 144 (5): 727–731. doi:10.4039/tce.2012.64. ISSN 0008-347X. S2CID 84027800.
Isaac, Nick J. B.; Cruickshanks, Katie L.; Weddle, Ann M.; Marcus Rowcliffe, J.; Brereton, Tom M.; Dennis, Roger L. H.; Shuker, David M.; Thomas, Chris D. (2011). "Distance sampling and the challenge of monitoring butterfly populations" (PDF). Methods in Ecology and Evolution. 2 (6): 585–594. Bibcode:2011MEcEv...2..585I. doi:10.1111/j.2041-210X.2011.00109.x. ISSN 2041-210X.
Rüdisser, Johannes; Tasser, Erich; Walde, Janette; Huemer, Peter; Lechner, Kurt; Ortner, Alois; Tappeiner, Ulrike (2017-08-01). "Simplified and still meaningful: assessing butterfly habitat quality in grasslands with data collected by pupils". Journal of Insect Conservation. 21 (4): 677–688. doi:10.1007/s10841-017-0010-3. ISSN 1366-638X.
Barkmann, Friederike; Huemer, Peter; Tappeiner, Ulrike; Tasser, Erich; Rüdisser, Johannes (2023-01-06). "Standardized butterfly surveys: comparing transect counts and area-time counts in insect monitoring". Biodiversity and Conservation. 32 (3): 987–1004. Bibcode:2023BiCon..32..987B. doi:10.1007/s10531-022-02534-2. ISSN 1572-9710.

xerces.org

"The Xerces Society » Number of Monarch butterflies overwintering in California holds steady, but still well below the 1990s". 2014-01-31. Retrieved 2014-09-08.