Western Dog Tick
Western Dog Tick
dermacentor similis
The Western Dog Tick (Dermacentor similis) is a highly resilient hard tick species found throughout the western regions of North America. Renowned for its hardiness and parasitic lifestyle, this arachnid plays a significant role in its local ecosystems as a vector for various microorganisms and as a food source for several insectivorous animals. It is particularly well-known for its association with domestic dogs, wild canids, and larger mammals, including humans. Despite their unpopular reputation, these ticks possess remarkable physiological adaptations. They can endure extreme environmental conditions and survive for many months without feeding, waiting patiently in the brush for a suitable host to pass by. Understanding their behavior and life cycle is crucial for hikers, pet owners, and outdoor enthusiasts navigating their shared environments.
生息地: Found in brushy areas, tall grasslands, chaparral, woodland trails, and transition zones between forests and fields where hosts frequently travel.
外見
Adult Western Dog Ticks are relatively large, flat, oval-shaped arachnids, measuring about 3 to 5 mm in length when unfed, but expanding significantly up to 15 mm and turning a bluish-grey color when fully engorged. They exhibit a distinct ornate scutum (dorsal shield) featuring prominent silver-grey or whitish ornate markings on a dark brown background. Males have a fully covered ornate back, while females have a smaller ornate scutum near the front, leaving the rest of their dark brown abdomen exposed to stretch during feeding. Like all arachnids, adults and nymphs have eight legs, while the tiny larvae have only six.
界Animalia門Arthropoda綱Arachnida目Ixodida科Ixodidae属Dermacentor
カテゴリ
Invertebrateレア度
Common
危険度
1/5 · 非常に低い
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おもしろい事実
A single female Western Dog Tick can lay up to 6,000 eggs in leaf litter before she dies.
They do not jump or fly; instead, they rely entirely on direct physical contact when hosts brush past their questing positions.
They utilize a specialized sensory cavity on their front legs called Haller's organ to detect chemical cues, moisture, and temperature changes.
特殊能力
能力
Questing Behavior
The tick climbs to the tips of grasses and shrubs, extending its front legs to detect the heat, carbon dioxide, and vibrations of passing hosts.
能力
Extreme Starvation Tolerance
They can survive for several months, and sometimes over a year, without a single blood meal by drastically lowering their metabolic rate.
能力
Anesthetic Saliva
Their saliva contains specialized compounds that numb the host's skin, prevent blood clotting, and suppress the immune response, allowing undetected feeding.
サイズと詳細
- 長さ
- 1-2 cm
- 体重
- 0.000002-0.00015 kg
- 寿命
- 1-3 年
- 一度の産卵数
- 2000-6000
- 抱卵期間
- 20-40 日
食性と食事
Feeds exclusively on the blood of mammalian hosts to complete its life cycle.
年齢による違い: Larvae and nymphs feed on smaller rodents, whereas adults target larger mammals.
主な食物
- Mammalian blood
- Rodent blood
- Canine blood
採餌方法
- Ambush
生態系とのつながり
parasite
Domestic Dog
Canis lupus familiaris
Adult ticks parasitize dogs for a blood meal.
parasite
Deer Mouse
Peromyscus maniculatus
Larval ticks parasitize deer mice.
eaten by
Western Fence Lizard
Sceloporus occidentalis
Often consumed by western fence lizards as part of their diet.
特徴
このオブジェクトにはまだ特徴バッジが割り当てられていません。
別名
まだ別名はありません。
コレクション
テーマが追加されると、このオブジェクトのコレクションがここに表示されます。
安全性
危険度
1/5 · 非常に低い
まだ特別な安全上の注意はありません。
よくある質問
Western Dog Tickを見分けるには？
Western Dog Tickを識別する最も簡単な方法は、Snappit自然識別アプリを使用することです。
Western Dog Tickの長さは何ですか？
1-2 cm
Western Dog Tickの体重は何ですか？
0.000002-0.00015 kg
Western Dog Tickの寿命は何ですか？
1-3 年
Western Dog Tickは何を食べますか？
Feeds exclusively on the blood of mammalian hosts to complete its life cycle.
Western Dog Tickは通常どこに生息していますか？
Found in brushy areas, tall grasslands, chaparral, woodland trails, and transition zones between forests and fields where hosts frequently travel.
Western Dog Tickはどのように狩りをしますか？
Ambush
Western Dog Tickの一度の産卵数は何ですか？
2000-6000
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