Argentina species accounts, v1504
Page 635
Image from the Biodiversity Heritage Library. Contributed by Museum of Vertebrate Zoology, University of California, Berkeley. | www.biodiversitylibrary.org
Transcription
JPMyrne 1974 Camplist 05 Valley of Rio Chubut, 50m N E of Paso del Río by road, Ría de Chubut, Argentina 23 May Attriplex dominated commonly in lowlands, with some Berberis ilicifolia, a few small, low clumped cactus-like composites. Most of the ground between the Attriplex is bare dirt. We camped at the base of the S edge of the valley. Climbing up less than 300' the Attriplex decreases. Some Minium speciosum appears and the Berberis increases. Some lifts of grass. Very heavily gravelly, so it would seem from the quantity of sheep sign. Two piles of guanaco droppings on the nearby hills. The river valley here is quite wide (5-10 km) cutting through what appears from the top to be an old plain, covered with lake or river or ocean sediment. Slopes are relatively horizontal, but the action of water erosion has formed an immense landscape with sharp cliff faces and a measurable -5°C at dawn 20 Guanaco sighted from the top of the valley looking South - one group of 8 and 3 of 4 guanacos. Peracoenia pennata 1 Chloephaga picta 750 - flying over in several flocks Falco femoralis 1 Alditha Eremobius phoenicurus - in the Berberis, solitary singing (like a clipping sparrow) Phagisus gayi - several flocks of 5-10 birds in Attriplex foraging on ground Fox squirrel, also in the Attriplex lowland were numerous @ 6-9 inch diameter holes, often with chewed vegetation at the opening. Golfo San Jose, 25 km N of Puerto Piramides by road, Peninsula Valley, Ría de Chubut, Argentina 25 May camping at Roger Payne's NYBS whale research base camp, on the Eastern shore of Golfo San Jose, a bay on the N. side of Peninsula Valley bordered by 100 m high cliffs. At camp the cliffs come down somewhat + there is a cove with extensive tidal sand flats (Fick #278) below a steep pebble beach. Then are occasional patches of barely visible rock coming above the sand flats, except at the end of the cove where the cliffs return to 100 m height; there the rubble of rocks is quite extensive. Vegetation along the shore is xeric scrub - some Attriplex but mostly a combination of several thorny Solanaceous shrubs - Beijin is Spanish name of one. The area has been hit by a severe rainstorm during the last 10 days and is quite green as a result. Tide was low at dawn, no cloud, a moderate SW wind.