La Ventana Stories

Starfish

I know almost nothing about starfish, except that the starfish in La Ventana Bay are truly beautiful, interesting creatures to observe especially using time lapse photography.  They are very diverse in color and design. This video is meant to highlight just that. Click here to see my video on local starfish. William’s Starfish Video. I have placed a couple of links in the video description if you’d like to learn more about them. For more information on local reef ecology, Contact William desertplayer@hotmail.com

Creatures that Live in Tunnels

In the first part of this series (see The Ventana View 12, diciembre), we learned who makes underground tunnels. Today we will focus on which creatures live in them. To some extent, they are one in the same, as many animals who make tunnels also inhabit them. For example, rabbits, iguanas and ground squirrels certainly live in their burrows at first, but those creatures usually move out if the burrow feels too small, or maybe part of it caved in, or maybe it is too close to something dangerous. In many cases, burrows can flood during heavy rains.

Whatever the reason, burrows change ownership frequently. Some creatures live in their second-hand burrows, although many use them more like short-term rentals. For instance, whiptails (the blue-tailed lizards scurrying all around) are very active on sunny days, sometimes covering a lot of ground in their search for grubs and other leaf-litter creatures. Rather than returning all the way back to last night’s burrow, whiptails can pop into the nearest hole and spend the night there.

After a while, burrows start to connect to each other and, eventually, become part of the tunnel network, an intricate web where many fascinating creatures spend their time. Sand snakes “swim” through softer soils but, in harder ground, they spend essentially all their time in the tunnel network. Thread snakes also spend much of their time navigating these tunnels, as well as rosy boas, ground snakes, black-headed snakes, some small rodents and a great assortment of insects.

All this life under our feet, and we barely even know it exists! This fascinating world doesn’t require much help from us, although there is one crucial factor keeping the whole ecosystem strong. If we can allow this one little thing to remain in our yards, the animals and plants will live healthier, longer lives. This all-important magic serum is leaf litter. So go ahead and landscape areas that you actually use on your properties, but please leave leaf litter where you can, but especially under trees, cactuses and bushes. Leaving leaf litter in place also holds moisture, and this natural mulch greatly benefits the plants, as well as the animals.

Merry Christmas to all, and to all a good kite!

Stonefish

Correction, the fish in a previously posted video entitled: “Stonefish,” is not a Stonefish! but is a Stone Scorpionfish, a completely different fish. I was alerted by retired Biology Professor from Northern Arizona University, Dr. Linn Montgomery.  Here’s the corrected video. Stone Scorpionfish Video.  See link in the video description to an article discussing differences between Stonefish and Scorpionfish. Contact William, for more info: desertplayer@hotmail.com

Approaching Winter

We are now approaching winter! Due to the recent cold weather here in LV/ES, most of the reptiles have retired into their winter abodes, like many of the human residents. One difference, however, is that the majority of the reptiles are underground. Today, we will dive deeper into the subterranean world where reptiles spend so much of their time, and shine a spotlight where the sun rarely reaches. The first questions we should ask ourselves are: where do all the tunnels come from, and who makes them? These questions have many answers, as there are a variety of interesting fauna giving rise to this underground kingdom.

Around here, many of the tunnels belong to the Desert Iguanas, not the big ones living on rooftops, but rather the smaller, sand-colored iguanas that prefer life on the ground. In the winter months, these characters are completely absent; come spring, however, they will emerge and become one of the most common lizards in the area!

Another set of important burrowers are the mammals, digging larger burrows. Once the squirrel, rabbit, mouse, skunk, etc. leave their burrows, those spaces become good hideouts for other creatures.

A third, often overlooked group of burrowers are the insects! Ant colonies create huge nests that become part of the tunnel web after the ants move on. Termites do this job as well, along with many other insects.

Now we know who made the tunnels, but who lives there? And what about the creatures that rarely leave the soil? To be continued next week! Chance Stevens chancestevens123@icloud.com

Crevalle Jacks

Here is a short clip of a pair of Crevalle Jacks that swam toward me, then turned when they saw me, and one made the vocalization that you hear in this video: Crevalle Jack Makes Vocalization. Crevalle Jacks are the fish that are crazily hammering the sardines in my Return of the Sardines video. They chased the sardines onto shore and left a trail of dead fish all along the El Sargento shoreline in 2021. William desertplayer@hotmail.com

The Five-Toed Worm Lizard

The Five-Toed Worm Lizard is a strange, unique and seldom found creature that spends most of its time underground. This species is native to the Baja California Peninsula. There is a good-sized population just outside of La Ventana, though not much research has been done on these two-legged lizards.

If you were to see one of these crazy creatures out in their natural habitat — which is Very Difficult — you would probably be confused. At first glance, you would think that it was a worm because it is pink and looks like it has segments, but then you would see its little two front legs and teeny tiny black eyes. Upon further inspection, you would see that it more closely resembles some sort of invertebrate over a lizard. 

Mexican Mole Lizards (another name for the same species) are not widespread, and seem to prefer loamy cactus forests. These lizards are so introverted that many people who live here their whole lives never see one! I was able to find one because of patience, perseverance and a very helpful shove in the right direction by my amazing friend, Prof. Bradford Hollingsworth, Curator of Herpetology at the San Diego Natural History Museum. 

Above the surface, mole lizards are a bit scattered and spend their time trying to dig back into the dirt; underground, however, they are fearsome bug hunters perfectly suited for their specialized life. If you do come across one of these enigmas of nature, photograph it and let me know where you found it, since it could be a new population! – chancestevens123@icloud.com

Coral Bleaching

 For the first time, November has been declared Coral Bleaching Awareness Month. This year, coral reefs worldwide are facing a particularly hard one, mainly due to El Niño meteorological phenomenon. During El Niño, the Pacific Ocean is much warmer, affecting global weather patterns. You probably have noticed the water in the bay is much warmer compared to other years. Though El Niño is a natural phenomenon, on a warmer planet it can have stronger effects.

But how does coral bleaching relate? Bleaching is a stress response caused by different factors, one of them is an increase in water temperature. Corals live in symbiosis with a unicellular photosynthetic organism known as zooxanthella. Zooxanthellae are dinoflagellates from the genus Symbiodinium that live within the coral tissue. In this intimate relationship, zooxanthellae contribute to corals’ nutrition, providing them with the products of photosynthesis. In exchange, they get protection and nutrients. Zooxanthellae can provide up to 90 % of the corals´ energy needs and without them, their growth would be too slow to create reef structures. Because of their photosynthetic pigments, Zooxanthellae are also responsible for the corals´ colors.

Under environmental stress, corals expel their partners. Without them, they lose their color, and we see their white skeletal structure through their transparent tissues. Besides losing their color, corals lose their main energy source. If the conditions go back to normal soon, zooxanthellae return, and corals recover. If the stress lasts too long, the corals starve to death.

Coral bleaching has complex causes, climate change is a main contributor to it. Healthier reefs have better chances to survive. Water quality is vital for coral reefs’ health: less pollution, less trash in the ocean, reef-safe sun protection, reducing CO2 emissions, fishing regulations to ensure herbivores (parrotfish, surgeon fish…) can control algae growth… All of these and more,  are necessary actions to preserve our reefs, not just because it would be a crime to lose their beauty, but because they have vital functions in our ocean: if reefs go, we go.

More on this coral bleaching awareness month here. María Rodriguez-Salinas maria878@hotmail.com, Instagram: maria_salinas_scuba

La Ventana’s Five Most Common Snakes

This week I am featuring La Ventana’s five most common snakes. There are around 15 snake species in our town, so many of the less common snakes are not covered in this column, but the snakes below account for about 80% of the questions I receive!

1. Baja California Coachwhip: These large, day-active snakes reach lengths of over six feet! They are extremely fast and come in an array of colors; around here, they are typically black. They are semi-arboreal, meaning they spend a good bit of time up in trees. They are completely harmless. Here are two photos of different colored coachwhips.

2. Cape Gopher Snake: Cape Gopher Snakes are large and beautiful snakes. They are particularly active during the shoulder seasons (spring and fall) and have incredible patterns. They are completely harmless.

3. Coast Night Snake: Coast Night Snakes are small, nocturnal snakes commonly found slithering around yards or underneath surface debris. These snakes are usually gray, and are commonly confused with rattlesnakes because they have vertical pupils. They, too, are harmless.

4. Western Patch-Nosed Snake: Western Patch-Nosed Snakes are quick, agile snakes that specialize in hunting whiptail lizards. These snakes have large eyes and crème and brown-ish black stripes. They spend a good bit of time with their heads down holes, as this is one of their best hunting methods. Once again, they are harmless.

5. Red Diamond Rattlesnake: Red Diamond Rattlesnakes are large, impressive and easily-identifiable snakes. They will usually support a large rattle, and often use it! These snakes are not really present in town anymore, but can be found just a bit up in the hills, including on mountain bike trails. They are dangerously venomous, and it is best to leave them their space.

Baby Reptile Season!

We are now in early November and, recently, I have noticed a major spike in baby snakes and lizards. This means there are more reptiles than usual at this time, and we need to be very careful driving at night, because they are crossing the roads in abundance.

A few days ago, around 9pm, I heard a sudden exclamation outside, followed by “SNAKE! Snake!” Rushing out of my camper into our outdoor living area, I saw a small Cape Thread Snake (Rena boettgeri) slithering across the rug. I picked it up and started photographing it, then headed out to release it in a nearby bush. On the way to the bush, I noticed another small serpent on the ground, right in front of me!

Upon closer inspection, I concluded it was a hatchling Coast Night Snake (Hypsiglena ochrorhynchus). I picked it up, though now I was holding a night snake, a large spotlight, a phone for photography purposes, and an extremely squirmy thread snake. Clearly this was not sustainable, so I put the light down, just to discover that this left me in complete darkness. I picked the spotlight back up and, to my dismay, the thread snake squirmed out of my hand and right into a crevice inside the spotlight.

At this point I had no idea what was happening, so I called for backup. The night snake made a break for it, successfully escaped my grasp and slithered off into the brush. A friend arrived and started to assist me but, unfortunately, the thread snake was inside the back of the spotlight, rendering the light useless in finding the escape artist. Eventually we got another light and discovered the thread snake hiding behind the battery case, and it came out easily. I then tracked down the night snake, and eventually everything worked out fine.