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Santa Catalina rattlesnake

Crotalus catalinensis

Tentang nama: The name comes from Isla Santa Catalina, the only island where it lives.1

Perlu jumpa doktorJarang membawa maut, tetapi gigitannya perlu dirawat doktor.

Ular orok-orok

GigitanMakan: Daging

Bahaya kepada manusia: SeriusGigitannya perlu dirawat doktor. Kematian sangat jarang berlaku.

The Santa Catalina rattlesnake is a small, slender pit viper with a very unusual feature: it has no rattle. It lives only on Isla Santa Catalina, a small island in the Gulf of California off the coast of Baja California Sur, Mexico. It is critically endangered.1

Hidup di

Isla Santa Catalina in the Gulf of California, off Baja California Sur, Mexico1

Amerika Utara

Laman utama

It lives in Gulf Coast desert plants, mostly on the western side of the island, in dry washes called arroyos, plains, ravine bottoms, stream riverbeds and rocky hilltops. It shelters in rock crevices and dense vegetation.1

Panjang

73 cm (2.4 ft)1

Kelajuan maksimum

kira-kira 3.5 km/j (2.2 mph)

Di darat, anggaran kasar

Apa yang ia makan?

Its diet is mostly mammals, especially the Santa Catalina deer mouse, with some lizards. It holds its prey in its jaws until the venom takes effect, rather than biting and releasing it.1

Gambar Santa Catalina rattlesnake — Santa Catalina rattlesnake. Gambar: Yinan Chen. Public Domain, Wikimedia Commons.

Cara mengenalinya

It has no rattle. The tail tip falls off with each shed instead of forming new segments.1
It is relatively slender and small, growing to a maximum of 73.1 cm.1
The most common colour form has a light cream base with reddish-brown blotches down the back and black and white banding around the tail.1
The other colour form is ash grey with darker grey blotches, and it still has tail banding.1
It is mostly active at night and is often seen out in the open rather than hiding.1

Kuasa bisa

Gigitan

Bisa keluar melalui taring atau giginya apabila ia menggigit.

Apa kesan bisanya?

It is venomous, like all pit vipers. It holds its prey in its jaws until the venom takes effect, so the prey cannot escape before it succumbs.1

Berapa bahaya ia kepada manusia?

Bahaya kepada manusia: SeriusGigitannya perlu dirawat doktor. Kematian sangat jarang berlaku.

Apa yang ia buat apabila takut?

Unlike most rattlesnakes, it does not tend to hide, and because it has no rattle it gives no audible warning.1

Jika ia menggigit

Pastikan orang itu tidak bergerak dan tenang, letakkan anggota yang digigit pada paras jantung, tanggalkan cincin dan barang yang ketat, dan pergi ke hospital dengan segera.

Sentiasa hubungi nombor kecemasan dahulu (112, 000, 911). Ini panduan pertolongan cemas umum, bukan nasihat perubatan. Asas pertolongan cemas

Kekal selamat

Jangan sesekali sentuh, tangkap atau usik haiwan liar, walaupun yang kecil, dan walaupun ia nampak tidur atau mati.
Beri ia ruang. Jika kamu terjumpa, bertenang, undur perlahan-lahan dan biarkan ia pergi.
Jika ia menggigit kamu: bertenang, jangan bergerak, hubungi nombor kecemasan (112, 000, 911) atau pergi ke hospital dengan segera. Ingat rupanya, gambar boleh membantu.

Ia bukan mahu memburu kamu. Ia guna bisanya untuk menangkap makanan atau melindungi diri, dan ia lebih suka bersembunyi. Lagi tentang keselamatan

Di mana di dunia?

Afrika Asia Eropah Amerika Utara Amerika Selatan Australia & Oceania

Berapa besar ia?

Berapa panjang ia?

sepanjang 4 biji pisang disusun hujung ke hujungboleh melepasi 100 meter dalam 100 saat (manusia paling laju perlukan 9.6)

Berapa besar Santa Catalina rattlesnake berbanding KAMU?

Hanya matematik dalam pelayar kamu. Tiada apa yang disimpan atau dihantar ke mana-mana.

Berapa laju ia?

Kura-kura darat kira-kira 0.3 km/j (0.19 mph)

Santa Catalina rattlesnake kira-kira 3.5 km/j (2.2 mph)

Orang berjalan kira-kira 5 km/j (3.1 mph)

berguna untuk diketahui

Fakta

It is one of the few rattlesnakes that has lost its rattle. The tail tip falls off with each shed instead of forming a new segment.1

Although it is a rattlesnake, it is a swift and skilful climber, and individuals were most often found in low bush branches during the hottest month, July.1

Its main prey, the Santa Catalina deer mouse, lives only on this island, so the snake's food supply is also very limited.1

It does not hibernate, and the evidence suggests it is nocturnal even in winter.1

Its closest relative on the mainland is the red diamond rattlesnake, which eats a much wider range of prey, including frogs, birds and other snakes.1

Untuk pakar bisa

Nama saintifik: Crotalus catalinensis
Kumpulan: Ular orok-orok
Keluarga: Viperidae2
Susunan: Squamata
Benua-benua: Amerika Utara
Keadaannya di alam liar: Critically Endangered (IUCN Red List)1
Bahaya kepada manusia: 3 / 5: Serius3

Dari mana fakta datang

Crotalus catalinensis (Wikipedia (CC BY-SA 4.0))
Crotalus catalinensis (iNaturalist): nama dan pengelasan.
Venom Wiki: tahap bahaya, saiz biasa dan anggaran kelajuan adalah penilaian kami sendiri. Lihat cara kami mengiranya: Cara kami menilai bahaya.

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