Jump to content

Regal horned lizard: Difference between revisions

From Wikipedia, the free encyclopedia
Browse history interactively
← Previous editNext edit →
Content deleted Content added
VisualWikitext
added behavior section
OPetty (talk | contribs)
10 edits
No edit summary
(72 intermediate revisions by 46 users not shown)
Line 1: Line 1:
{{Short description|Species of lizard}}
⚫
{{Taxobox | name = Regal Horned Lizard
{{Speciesbox
| image =Brdavis - Phrynosoma solare.jpg
⚫
| name = Regal horned lizard
| image_width =
| image_caption = '''''Phrynosoma solare'''''
| image = Brdavis - Phrynosoma solare.jpg
| image_caption =
| regnum = [[Animal]]ia
| status = LC
| phylum = [[Chordate|Chordata]]
| status_system = IUCN3.1
| subphylum = [[Vertebrata]]
| status_ref = <ref name=iucn>Hammerson, G.A., Frost, D.R. & Gadsden, H. (2007). ''Phrynosoma solare''. The IUCN Red List of Threatened Species {{doi|10.2305/IUCN.UK.2007.RLTS.T64081A12734740.en}}</ref>
| classis = [[Reptilia]]
| ordo = [[Squamata]]
| genus = Phrynosoma
⚫
| species = solare
| subordo = [[Lacertilia]]
⚫
| authority = [[John Edward Gray|Gray]], 1845<ref>{{cite web|url=http://zipcodezoo.com/index.php/Phrynosoma_solare |title=''Phrynosoma solare'' |website=ZipcodeZoo.com}}</ref>
| familia = [[Phrynosomatidae]]
| genus = ''[[Horned lizard|Phrynosoma]]''
⚫
| species = '''''P. solare'''''
| binomial = ''Phrynosoma solare''
⚫
| binomial_authority = [[John Edward Gray|Gray]], 1845<ref><small>[http://zipcodezoo.com/Animals/P/Phrynosoma_solare/ ZipcodeZoo.com]</ref>
}}
}}


[[File:Horned_lizard_032507_kdh.jpg|thumb|[[Regal Horned Lizard]]]]
[[File:Horned lizard 032507 kdh.jpg|thumb|Regal horned lizard]]
The '''regal horned lizard''' ('''''Phrynosoma solare''''') is a [[horned lizard]] [[species]] native to [[Mexico]] and the [[Southwest United States]].<ref>[http://uts.cc.utexas.edu/~varanus/phryno.html UTexas.edu]</ref>
The '''regal horned lizard''' ('''''Phrynosoma solare''''') is a [[horned lizard]] [[species]] native to [[Mexico]] and the [[Southwest United States]].<ref name=Varanus>{{cite web|url=http://uts.cc.utexas.edu/~varanus/phryno.html |title=Horned Lizards |author1=Pianka, Eric R. |author2=Hodges, Wendy L. |work=Varanus: the Pianka lab page }}</ref>


==Description==
==Description==
The regal horned lizard is a small, flat lizard that’s about the size of the palm of your hand. Though it has spikes all around its body, the regal horn’s main defense is the ability to squirt blood from its eyes. (NML p. 20-21)
The regal horned lizard is a small, flat lizard about the size of the palm of a human's hand. It has spikes all around the lateral surface of its body. It is 3–4 in (117&nbsp;mm) in length from nose to tail as a full adult, and pale grey to yellow-brown or reddish in color, topped with dark blotches alongside the body and back. Its four legs each have five toes with a claw on each toe. The species is a slow runner that uses camouflage to escape predators.<ref>{{cite book|last1=Sherbrooke|first1=Wade C.|title=Introduction to Horned Lizards of North America|date=2003|publisher=University of California Press}}</ref>

⚫
==Distribution==
⚫
This lizard can be found across southeastern Arizona and along the transition of the southern zone of the central mountains region.<ref>{{cite web|url=http://www.reptilesofaz.org/Lizards-Subpages/h-p-solare.html |title=REGAL HORNED LIZARD ''Phrynosoma (Anota) solare'' |author=Brennan, Thomas C. |year=2008}}</ref>

⚫
==Habitat and Home Range==
This horned lizard occupies primarily level or gently sloping terrain with openly spaced [[desert]] vegetation such as [[mesquite]], [[creosote bush]], and [[saguaro]] cactus.<ref name=Varanus/> It can be found primarily in a hot and dry climate where the ground may be covered in limestone dust.<ref>{{cite journal|last1=Suarez|first1=Andrew|last2=Richmond|first2=Jon|last3=Case|first3=Ted |title=Prey selection in horned lizards following the invasion of Argentine ants in southern California|journal=Ecological Applications |year=2000|volume=10 |issue=3|pages=711–725 |doi=10.1890/1051-0761(2000)010[0711:PSIHLF]2.0.CO;2}}</ref> It is found in the Sonoran Desert Mountains is where it prefers its climate, but can be found in Texas, southern California, Arizona, and New Mexico.<ref>{{cite journal|last1=Parker |first1=William S. |year=1971 |title=Ecological observation on the regal horned lizard in Arizona|journal=Herpetologica |volume=27 |issue=3 |pages=333–338 |jstor=3890846}}</ref> It
has been shown to have a relatively small home range of roughly 160 yards (146 meters).<ref>Parker, W. S. (1971). Ecological Observations on the Regal Horned Lizard (Phrynosoma solare)
in Arizona. Herpetologica, 27(3), 333–338. http://www.jstor.org/stable/3890846</ref>


==Diet==
==Diet==
They eat mostly harvester ants, and can eat twenty-five hundred ants in one meal. They are slow eaters, because they spend most of their time in the intense heat of the desert during meals. (NML p. 20-21)
Their diet consists almost exclusively of harvester ants, and can eat 2500 ants in one meal.<ref>Sullivan, B. K., Sullivan, K. O., Vardukyan, D., & Suminski, T. (2014). Persistence of Horned
Lizards (Phrynosoma spp.) in urban preserves of Central Arizona. Urban Ecosystems, 17(3),
707-717. https://doi.org/10.1007/s11252-014-0353-4
</ref> They are slow eaters, because they spend most of their time in the intense heat of the desert during meals. They have been observed consuming a some other insects, and spiders.<ref name=Mattison/>


==Behavior==
==Behavior==
Adult regal horned lizards are active year round however, they are most active from April to September during the hours of 6:00 and 9:00 AM. <ref>Parker, W. S. (1971). Ecological Observations on the Regal Horned Lizard (Phrynosoma solare)
This is a year round active type of lizard, but during winter the activity is usually restricted to unseasonably warm days. It looks for shelter from cold temperatures by digging holes in the ground. A particular characteristic is that it when it is threatened or captured it squirts blood from its eye. This blood may have a fake taste used to deter predators. Some other defensive behaviors include gulping air and poking with the horns.
in Arizona. Herpetologica, 27(3), 333–338. http://www.jstor.org/stable/3890846</ref> During winter, their activity is usually restricted to unseasonably warm days. They may hibernate late September through October. They tend to be sedentary creatures which is reflected in their morphology (often

displaying matching color patterns to their environment as camouflage). This is also reflected in their limited home range. <ref>Lowe, C. H. (1954). Normal Field Movements and Growth rates of Marked Regal Horned
⚫
==Distribution==
Lizards (Phrynosoma Solare). Ecology, 35(3), 420–421. https://doi.org/10.2307/1930110</ref> The regal horned lizard will often bask in the sun with only its head poking out of the sand in order to heat blood located within a chamber inside the head. When the blood is warm enough, the lizard opens a valve in its neck and circulates the blood around the body. It derives shelter and builds nests through digging holes in the ground. They seem to be very protective of these nests as one study observed a female placing herself between the hole and the researcher. <ref>Van Devender, T. R., & Howard, C. W. (1973). Notes on Natural Nests and Hatching Success in
⚫
This lizard can be found across southeastern Arizona and along the transition of the southern zone of the central mountains region.<ref>http://www.reptilesofaz.org/Lizards-Subpages/h-p-solare.html</ref>
the Regal Horned Lizard (Phrynosoma solare) in Southern Arizona. Herpetologica, 29(3), 238–

239. http://www.jstor.org/stable/3892009</ref> Typically they remain still above ground until temperatures reach above 52.2°C. Regal horned lizards generally stay in an open habitat with access to

burrows to avoid predators and high temperatures. Though they have spikes all around their body, their main defense when coming in contact with predators is the ability to squirt blood from their eyes. When they are threatened or captured, they may exhibit this blood squirting behavior. This blood may have a taste used to deter predators. They typically only resort to this if camouflage and intimidation do not work. When it squirts out blood, it aims for the predator's mouth and eyes. This stream can range up to 4 feet and may be repeated several times. The stream comes out through its lower eyelids' pores. Some other defensive behaviors include gulping air and poking with the horns.<ref name=Mattison>{{cite book|last1=Mattison |first1=Christopher |title=Lizards of the World |date=1989|place=New York, NY}}</ref>
⚫
==Habitat==
This horned lizard occupies primarily level or gently sloping terrain with openly spaced [[desert]] vegetation such as [[mesquite]], [[creosote bush]], and [[saguaro]] cactus.<ref>[http://uts.cc.utexas.edu/~varanus/phryno.html UTexas.edu]</ref>


==Reproduction==
Regal horned lizards are oviparous and reproduce via sexual reproduction (specifically internal fertilization). Females tend to be ovulating in July and August. Males tend to exhibit enlarged
reproductive organs (testes, vasa deferentia, and hemipenes) when in preparation for mating.
Males were shown to have exhibited these enlargements from June to August. Females lay eggs in the generally time range of June to August.<ref>Parker, W. S. (1971). Ecological Observations on the Regal Horned Lizard (Phrynosoma solare)
in Arizona. Herpetologica, 27(3), 333–338. http://www.jstor.org/stable/3890846</ref> A range of 7–30 eggs are laid per clutch and females typically lay only one clutch annually. The eggs are laid in nests which are semicircular tunnels dug at an angle, allowing the nest to be shaded
for longer periods of the day. Typically they nest in moist fine silt or sand.<ref>Van Devender, T. R., & Howard, C. W. (1973). Notes on Natural Nests and Hatching Success in
the Regal Horned Lizard (Phrynosoma solare) in Southern Arizona. Herpetologica, 29(3), 238–
239. http://www.jstor.org/stable/3892009
</ref> The egg shells are white and flexible and average about one-half inch in diameter. The hatchlings receive no parental care upon hatching and immediately bury themselves in the sand. They are now responsible for finding and hunting for their own food. Several diverting tactics are used to attract a mate, such as head bopping, push-ups, and nodding of the head.<ref>{{cite web|title=''Phrynosoma solare'' (Regal Horned Lizard) |url=http://animaldiversity.org/accounts/Phrynosoma_solare/ |website=Animal Diversity Web}}</ref>


==References==
==References==
{{Reflist|30em}}


Nature’s Monsters: Lizards, ''Brenda Ralph Lewis'', Gareth Stevens publishing,2006
<ref>{{cite book|last=Lewis|first=Brenda|title=Natures Monsters: Lizards|year=2006|publisher=Gareth Stevens Publishing|location=Milwaukee, WI, USA|isbn=978-0-8368-6363-5|pages=20–21}}</ref>

<references/>
⚫
* [http://www.desertusa.com/april96/du_hliz.html Desertusa.com]


==External links==
==External links==
⚫
{{Commons category|Phrynosoma solare}}
* [http://www.reptilesofaz.org/Lizards-Subpages/h-p-solare.html Photos at reptilesofaz.org]
* [http://www.reptilesofaz.org/Lizards-Subpages/h-p-solare.html Photos at reptilesofaz.org]
⚫
* [http://www.desertusa.com/april96/du_hliz.html Desertusa.com]


{{Taxonbar|from=Q338908}}


[[Category:Phrynosomatids|Coast horned lizard]]
[[Category:Phrynosoma|Regal horned lizard]]
⚫
[[Category:Reptiles of Mexico]]
[[Category:Reptiles of the United States]]
[[Category:Reptiles of the United States]]
⚫
[[Category:Reptiles of Mexico]]
[[Category:Fauna of the Western United States]]
[[Category:Fauna of the Western United States]]
[[Category:Reptiles described in 1845]]

[[Category:Taxa named by John Edward Gray]]
{{lizard-stub}}

⚫
[[fr:Phrynosoma solare]]

Revision as of 22:19, 18 April 2024

Regal horned lizard
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Order: Squamata
Suborder: Iguania
Family: Phrynosomatidae
Genus: Phrynosoma
Species:
P. solare
Binomial name
Phrynosoma solare
Gray, 1845[2]
Regal horned lizard

The regal horned lizard (Phrynosoma solare) is a horned lizard species native to Mexico and the Southwest United States.[3]

Description

The regal horned lizard is a small, flat lizard about the size of the palm of a human's hand. It has spikes all around the lateral surface of its body. It is 3–4 in (117 mm) in length from nose to tail as a full adult, and pale grey to yellow-brown or reddish in color, topped with dark blotches alongside the body and back. Its four legs each have five toes with a claw on each toe. The species is a slow runner that uses camouflage to escape predators.[4]

Distribution

This lizard can be found across southeastern Arizona and along the transition of the southern zone of the central mountains region.[5]

Habitat and Home Range

This horned lizard occupies primarily level or gently sloping terrain with openly spaced desert vegetation such as mesquite, creosote bush, and saguaro cactus.[3] It can be found primarily in a hot and dry climate where the ground may be covered in limestone dust.[6] It is found in the Sonoran Desert Mountains is where it prefers its climate, but can be found in Texas, southern California, Arizona, and New Mexico.[7] It has been shown to have a relatively small home range of roughly 160 yards (146 meters).[8]

Diet

Their diet consists almost exclusively of harvester ants, and can eat 2500 ants in one meal.[9] They are slow eaters, because they spend most of their time in the intense heat of the desert during meals. They have been observed consuming a some other insects, and spiders.[10]

Behavior

Adult regal horned lizards are active year round however, they are most active from April to September during the hours of 6:00 and 9:00 AM. [11] During winter, their activity is usually restricted to unseasonably warm days. They may hibernate late September through October. They tend to be sedentary creatures which is reflected in their morphology (often displaying matching color patterns to their environment as camouflage). This is also reflected in their limited home range. [12] The regal horned lizard will often bask in the sun with only its head poking out of the sand in order to heat blood located within a chamber inside the head. When the blood is warm enough, the lizard opens a valve in its neck and circulates the blood around the body. It derives shelter and builds nests through digging holes in the ground. They seem to be very protective of these nests as one study observed a female placing herself between the hole and the researcher. [13] Typically they remain still above ground until temperatures reach above 52.2°C. Regal horned lizards generally stay in an open habitat with access to burrows to avoid predators and high temperatures. Though they have spikes all around their body, their main defense when coming in contact with predators is the ability to squirt blood from their eyes. When they are threatened or captured, they may exhibit this blood squirting behavior. This blood may have a taste used to deter predators. They typically only resort to this if camouflage and intimidation do not work. When it squirts out blood, it aims for the predator's mouth and eyes. This stream can range up to 4 feet and may be repeated several times. The stream comes out through its lower eyelids' pores. Some other defensive behaviors include gulping air and poking with the horns.[10]

Reproduction

Regal horned lizards are oviparous and reproduce via sexual reproduction (specifically internal fertilization). Females tend to be ovulating in July and August. Males tend to exhibit enlarged reproductive organs (testes, vasa deferentia, and hemipenes) when in preparation for mating. Males were shown to have exhibited these enlargements from June to August. Females lay eggs in the generally time range of June to August.[14] A range of 7–30 eggs are laid per clutch and females typically lay only one clutch annually. The eggs are laid in nests which are semicircular tunnels dug at an angle, allowing the nest to be shaded for longer periods of the day. Typically they nest in moist fine silt or sand.[15] The egg shells are white and flexible and average about one-half inch in diameter. The hatchlings receive no parental care upon hatching and immediately bury themselves in the sand. They are now responsible for finding and hunting for their own food. Several diverting tactics are used to attract a mate, such as head bopping, push-ups, and nodding of the head.[16]

References

  1. ^ Hammerson, G.A., Frost, D.R. & Gadsden, H. (2007). Phrynosoma solare. The IUCN Red List of Threatened Species doi:10.2305/IUCN.UK.2007.RLTS.T64081A12734740.en
  2. ^ "Phrynosoma solare". ZipcodeZoo.com.
  3. ^ a b Pianka, Eric R.; Hodges, Wendy L. "Horned Lizards". Varanus: the Pianka lab page.
  4. ^ Sherbrooke, Wade C. (2003). Introduction to Horned Lizards of North America. University of California Press.
  5. ^ Brennan, Thomas C. (2008). "REGAL HORNED LIZARD Phrynosoma (Anota) solare".
  6. ^ Suarez, Andrew; Richmond, Jon; Case, Ted (2000). "Prey selection in horned lizards following the invasion of Argentine ants in southern California". Ecological Applications. 10 (3): 711–725. doi:10.1890/1051-0761(2000)010[0711:PSIHLF]2.0.CO;2.
  7. ^ Parker, William S. (1971). "Ecological observation on the regal horned lizard in Arizona". Herpetologica. 27 (3): 333–338. JSTOR 3890846.
  8. ^ Parker, W. S. (1971). Ecological Observations on the Regal Horned Lizard (Phrynosoma solare) in Arizona. Herpetologica, 27(3), 333–338. http://www.jstor.org/stable/3890846
  9. ^ Sullivan, B. K., Sullivan, K. O., Vardukyan, D., & Suminski, T. (2014). Persistence of Horned Lizards (Phrynosoma spp.) in urban preserves of Central Arizona. Urban Ecosystems, 17(3), 707-717. https://doi.org/10.1007/s11252-014-0353-4
  10. ^ a b Mattison, Christopher (1989). Lizards of the World. New York, NY.{{cite book}}: CS1 maint: location missing publisher (link)
  11. ^ Parker, W. S. (1971). Ecological Observations on the Regal Horned Lizard (Phrynosoma solare) in Arizona. Herpetologica, 27(3), 333–338. http://www.jstor.org/stable/3890846
  12. ^ Lowe, C. H. (1954). Normal Field Movements and Growth rates of Marked Regal Horned Lizards (Phrynosoma Solare). Ecology, 35(3), 420–421. https://doi.org/10.2307/1930110
  13. ^ Van Devender, T. R., & Howard, C. W. (1973). Notes on Natural Nests and Hatching Success in the Regal Horned Lizard (Phrynosoma solare) in Southern Arizona. Herpetologica, 29(3), 238– 239. http://www.jstor.org/stable/3892009
  14. ^ Parker, W. S. (1971). Ecological Observations on the Regal Horned Lizard (Phrynosoma solare) in Arizona. Herpetologica, 27(3), 333–338. http://www.jstor.org/stable/3890846
  15. ^ Van Devender, T. R., & Howard, C. W. (1973). Notes on Natural Nests and Hatching Success in the Regal Horned Lizard (Phrynosoma solare) in Southern Arizona. Herpetologica, 29(3), 238– 239. http://www.jstor.org/stable/3892009
  16. ^ "Phrynosoma solare (Regal Horned Lizard)". Animal Diversity Web.

External links

Wikimedia Commons has media related to Phrynosoma solare.
Retrieved from "https://en.wikipedia.org/w/index.php?title=Regal_horned_lizard&oldid=1219628403"