Archives

Stephens’ kangaroo rat

Dipodomys stephensi Habitat: Grasslands, open; elevation 180–4,100 feet Survey Window: Year-round • Minimum five consecutive trapping nights, unless captured sooner • Trapping may not be conducted if nightly low temperatures are forecast to fall below 50ºF

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San Bernardino kangaroo rat

Dipodomys merriami parvus Habitat: Alluvial, scrub; elevation below 4,500 feet Survey Window: Year-round • Minimum five consecutive trapping nights, unless captured sooner • Trapping may not be conducted if nightly low temperatures are forecast to fall below 50ºF

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Pacific pocket mouse

Perognathus longimembris pacificus Habitat: Grasslands, scrub, generally within 5 miles of coast Survey Window: Apr 1–Sep 30 • Minimum five consecutive trapping nights, unless captured sooner • Trapping may not be conducted if nightly low temperatures are forecast to fall below 50ºF

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Mohave ground squirrel

Xerospermophilus mohavensis Habitat: Desert scrub Survey Window: Mar 1–Jul 15 Mar 1–Apr 15: Diurnal visual surveys Mar 1–Apr 30: First 5-day trapping period May 1–May 30: Second 5-day trapping period Jun 1–Jul 15: Third 5-day trapping period

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Thorne’s hairstreak butterfly

Callophrys thornei Habitat: Cypress woodlands, chaparral; elevation 1,000–4,500 feet Survey Window: Determined by emergence of species (approx. Apr 1–May 30 • Five weekly diurnal surveys

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Quino checkerspot butterfly

Euphydryas editha quino Habitat: Open; elevation below 5,000 feet Survey Window: Third week of February–second Saturday in May • If detected, minimum 5 diurnal surveys; otherwise, at least 13 surveys • Minimum 4-day interval between surveys • Weather conditions may alter survey season • Survey period and number may be..Read More

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Laguna Mountains skipper

Pyrgus ruralis lagunae Habitat: Meadow; elevation 3,900–6,000 feet Survey Window: Apr 15–Jul 31 • Two-year survey • Weekly visits during entire season (19 surveys)

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Hermes copper butterfly

Lycaena hermes Habitat: Woodlands, chaparral, coastal sage scrub; elevation 200–4,000 feet Survey Window: third full week of May–first full week of July • Four diurnal surveys; 8- to 14-day intervals • Look for spiny redberry associated with buckwheat that occurs within 15 feet • Learn more about critical habitat and..Read More

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Harbison’s dun skipper

Euphyes vestris harbisoni Habitat: Oak woodlands, wooded riparian Survey Window: Determined by emergence of species (approx. late spring–early summer • Five weekly diurnal surveys • Alternatively, year-round, perform single-pass survey of patches of Carex spissa for evidence of grazing or characteristic tent structures

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Fairy shrimp

Branchinecta spp. and Streptocephalus woottoni Habitat: Vernal pools/playas Survey Window: Year-round • Conduct one wet-season (winter/spring) and one dry-season survey (summer/fall, soil collection) • Wet season survey: sample all 3-centimeter-deep pools that last 24 hours

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